cpython-lru_cache-weakref: Modules/parsermodule.c annotate

annotate Modules/parsermodule.c @ 12357:5b59ea41db4e legacy-trunk

Install the docs (with fewer rules). Add descriptions for the system variables.

author	Guido van Rossum <guido@python.org>
date	Mon, 10 Apr 2000 19:36:27 +0000
parents	51c217454953
children	95e296e67a12

rev	line source
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1 /* parsermodule.c
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	3 * Copyright 1995-1996 by Fred L. Drake, Jr. and Virginia Polytechnic
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	4 * Institute and State University, Blacksburg, Virginia, USA.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	5 * Portions copyright 1991-1995 by Stichting Mathematisch Centrum,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	6 * Amsterdam, The Netherlands. Copying is permitted under the terms
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	7 * associated with the main Python distribution, with the additional
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	8 * restriction that this additional notice be included and maintained
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	9 * on all distributed copies.
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	10 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	11 * This module serves to replace the original parser module written
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	12 * by Guido. The functionality is not matched precisely, but the
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	13 * original may be implemented on top of this. This is desirable
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	14 * since the source of the text to be parsed is now divorced from
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	15 * this interface.
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	16 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	17 * Unlike the prior interface, the ability to give a parse tree
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	18 * produced by Python code as a tuple to the compiler is enabled by
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	19 * this module. See the documentation for more details.
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	20 *
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	21 * I've added some annotations that help with the lint code-checking
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	22 * program, but they're not complete by a long shot. The real errors
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	23 * that lint detects are gone, but there are still warnings with
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	24 * Py_[X]DECREF() and Py_[X]INCREF() macros. The lint annotations
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	25 * look like "NOTE(...)".
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	26 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	27
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	28 #include "Python.h" /* general Python API */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	29 #include "graminit.h" /* symbols defined in the grammar */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	30 #include "node.h" /* internal parser structure */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	31 #include "token.h" /* token definitions */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	32 /* ISTERMINAL() / ISNONTERMINAL() */
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	33 #include "compile.h" /* PyNode_Compile() */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	34
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	35 #ifdef lint
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	36 #include <note.h>
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	37 #else
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	38 #define NOTE(x)
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	39 #endif
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	40
8184 142165ed84d8 Add a declaration for strdup() for the Mac. Guido van Rossum <guido@python.org> parents: 8112 diff changeset	41 #ifdef macintosh
142165ed84d8 Add a declaration for strdup() for the Mac. Guido van Rossum <guido@python.org> parents: 8112 diff changeset	42 char strdup Py_PROTO((char ));
142165ed84d8 Add a declaration for strdup() for the Mac. Guido van Rossum <guido@python.org> parents: 8112 diff changeset	43 #endif
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	44
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	45 /* String constants used to initialize module attributes.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	46 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	47 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	48 static char*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	49 parser_copyright_string
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	50 = "Copyright 1995-1996 by Virginia Polytechnic Institute & State\n\
3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	51 University, Blacksburg, Virginia, USA, and Fred L. Drake, Jr., Reston,\n\
3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	52 Virginia, USA. Portions copyright 1991-1995 by Stichting Mathematisch\n\
3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	53 Centrum, Amsterdam, The Netherlands.";
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	54
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	55
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	56 static char*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	57 parser_doc_string
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	58 = "This is an interface to Python's internal parser.";
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	59
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	60 static char*
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	61 parser_version_string = "0.4";
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	62
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	63
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	64 typedef PyObject* (*SeqMaker) Py_PROTO((int length));
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	65 typedef int (SeqInserter) Py_PROTO((PyObject sequence,
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	66 int index,
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	67 PyObject* element));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	68
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	69 /* The function below is copyrigthed by Stichting Mathematisch Centrum. The
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	70 * original copyright statement is included below, and continues to apply
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	71 * in full to the function immediately following. All other material is
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	72 * original, copyrighted by Fred L. Drake, Jr. and Virginia Polytechnic
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	73 * Institute and State University. Changes were made to comply with the
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	74 * new naming conventions. Added arguments to provide support for creating
3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	75 * lists as well as tuples, and optionally including the line numbers.
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	76 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	77
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	78 /***********************************************************
2061 172ba04a5191 Added 1995 to copyright message. Guido van Rossum <guido@python.org> parents: 2055 diff changeset	79 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
172ba04a5191 Added 1995 to copyright message. Guido van Rossum <guido@python.org> parents: 2055 diff changeset	80 The Netherlands.
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	81
474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	82 All Rights Reserved
474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	83
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	84 Permission to use, copy, modify, and distribute this software and its
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	85 documentation for any purpose and without fee is hereby granted,
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	86 provided that the above copyright notice appear in all copies and that
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	87 both that copyright notice and this permission notice appear in
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	88 supporting documentation, and that the names of Stichting Mathematisch
4503 65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	89 Centrum or CWI or Corporation for National Research Initiatives or
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	90 CNRI not be used in advertising or publicity pertaining to
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	91 distribution of the software without specific, written prior
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	92 permission.
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	93
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	94 While CWI is the initial source for this software, a modified version
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	95 is made available by the Corporation for National Research Initiatives
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	96 (CNRI) at the Internet address ftp://ftp.python.org.
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	97
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	98 STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	99 REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	100 MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	101 CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	102 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	103 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	104 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	105 PERFORMANCE OF THIS SOFTWARE.
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	106
474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	107 ******************************************************************/
474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	108
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	109 static PyObject*
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	110 node2tuple(n, mkseq, addelem, lineno)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	111 node n; / node to convert */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	112 SeqMaker mkseq; /* create sequence */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	113 SeqInserter addelem; /* func. to add elem. in seq. */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	114 int lineno; /* include line numbers? */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	115 {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	116 if (n == NULL) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	117 Py_INCREF(Py_None);
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	118 return (Py_None);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	119 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	120 if (ISNONTERMINAL(TYPE(n))) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	121 int i;
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	122 PyObject *v;
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	123 PyObject *w;
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	124
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	125 v = mkseq(1 + NCH(n));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	126 if (v == NULL)
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	127 return (v);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	128 w = PyInt_FromLong(TYPE(n));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	129 if (w == NULL) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	130 Py_DECREF(v);
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	131 return ((PyObject*) NULL);
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	132 }
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	133 (void) addelem(v, 0, w);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	134 for (i = 0; i < NCH(n); i++) {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	135 w = node2tuple(CHILD(n, i), mkseq, addelem, lineno);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	136 if (w == NULL) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	137 Py_DECREF(v);
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	138 return ((PyObject*) NULL);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	139 }
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	140 (void) addelem(v, i+1, w);
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	141 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	142 return (v);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	143 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	144 else if (ISTERMINAL(TYPE(n))) {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	145 PyObject *result = mkseq(2 + lineno);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	146 if (result != NULL) {
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	147 (void) addelem(result, 0, PyInt_FromLong(TYPE(n)));
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	148 (void) addelem(result, 1, PyString_FromString(STR(n)));
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	149 if (lineno == 1)
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	150 (void) addelem(result, 2, PyInt_FromLong(n->n_lineno));
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	151 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	152 return (result);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	153 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	154 else {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	155 PyErr_SetString(PyExc_SystemError,
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	156 "unrecognized parse tree node type");
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	157 return ((PyObject*) NULL);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	158 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	159 } /* node2tuple() */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	160 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	161 * End of material copyrighted by Stichting Mathematisch Centrum.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	162 */
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	163
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	164
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	165
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	166 /* There are two types of intermediate objects we're interested in:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	167 * 'eval' and 'exec' types. These constants can be used in the ast_type
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	168 * field of the object type to identify which any given object represents.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	169 * These should probably go in an external header to allow other extensions
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	170 * to use them, but then, we really should be using C++ too. ;-)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	171 *
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	172 * The PyAST_FRAGMENT type is not currently supported. Maybe not useful?
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	173 * Haven't decided yet.
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	174 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	175
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	176 #define PyAST_EXPR 1
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	177 #define PyAST_SUITE 2
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	178 #define PyAST_FRAGMENT 3
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	179
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	180
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	181 /* These are the internal objects and definitions required to implement the
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	182 * AST type. Most of the internal names are more reminiscent of the 'old'
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	183 * naming style, but the code uses the new naming convention.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	184 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	185
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	186 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	187 parser_error = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	188
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	189
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	190 typedef struct _PyAST_Object {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	191
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	192 PyObject_HEAD /* standard object header */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	193 node* ast_node; /* the node* returned by the parser */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	194 int ast_type; /* EXPR or SUITE ? */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	195
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	196 } PyAST_Object;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	197
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	198
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	199 staticforward void
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	200 parser_free Py_PROTO((PyAST_Object *ast));
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	201
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	202 staticforward int
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	203 parser_compare Py_PROTO((PyAST_Object left, PyAST_Object right));
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	204
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	205 staticforward PyObject *
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	206 parser_getattr Py_PROTO((PyObject self, char name));
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	207
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	208
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	209 static
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	210 PyTypeObject PyAST_Type = {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	211
8450 61912d4ad52f Sorry, the initializer for ob_type must really be NULL, Guido van Rossum <guido@python.org> parents: 8290 diff changeset	212 PyObject_HEAD_INIT(NULL)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	213 0,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	214 "ast", /* tp_name */
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	215 (int) sizeof(PyAST_Object), /* tp_basicsize */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	216 0, /* tp_itemsize */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	217 (destructor)parser_free, /* tp_dealloc */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	218 0, /* tp_print */
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	219 parser_getattr, /* tp_getattr */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	220 0, /* tp_setattr */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	221 (cmpfunc)parser_compare, /* tp_compare */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	222 0, /* tp_repr */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	223 0, /* tp_as_number */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	224 0, /* tp_as_sequence */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	225 0, /* tp_as_mapping */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	226 0, /* tp_hash */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	227 0, /* tp_call */
5613 190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	228 0, /* tp_str */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	229 0, /* tp_getattro */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	230 0, /* tp_setattro */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	231
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	232 /* Functions to access object as input/output buffer */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	233 0, /* tp_as_buffer */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	234
11828 51c217454953 What used to be tp_xxx4 is now tp_flags; set it to Py_TPFLAGS_DEFAULT. Fred Drake <fdrake@acm.org> parents: 11297 diff changeset	235 Py_TPFLAGS_DEFAULT, /* tp_flags */
5613 190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	236
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	237 /* __doc__ */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	238 "Intermediate representation of a Python parse tree."
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	239
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	240 }; /* PyAST_Type */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	241
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	242
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	243 static int
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	244 parser_compare_nodes(left, right)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	245 node *left;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	246 node *right;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	247 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	248 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	249
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	250 if (TYPE(left) < TYPE(right))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	251 return (-1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	252
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	253 if (TYPE(right) < TYPE(left))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	254 return (1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	255
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	256 if (ISTERMINAL(TYPE(left)))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	257 return (strcmp(STR(left), STR(right)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	258
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	259 if (NCH(left) < NCH(right))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	260 return (-1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	261
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	262 if (NCH(right) < NCH(left))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	263 return (1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	264
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	265 for (j = 0; j < NCH(left); ++j) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	266 int v = parser_compare_nodes(CHILD(left, j), CHILD(right, j));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	267
8290 74a910b86b44 parser_compare_nodes(): Corrected a minor type error; eliminate one GCC Fred Drake <fdrake@acm.org> parents: 8196 diff changeset	268 if (v != 0)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	269 return (v);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	270 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	271 return (0);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	272
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	273 } /* parser_compare_nodes() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	274
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	275
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	276 /* int parser_compare(PyAST_Object* left, PyAST_Object* right)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	277 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	278 * Comparison function used by the Python operators ==, !=, <, >, <=, >=
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	279 * This really just wraps a call to parser_compare_nodes() with some easy
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	280 * checks and protection code.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	281 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	282 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	283 static int
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	284 parser_compare(left, right)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	285 PyAST_Object *left;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	286 PyAST_Object *right;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	287 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	288 if (left == right)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	289 return (0);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	290
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	291 if ((left == 0) \|\| (right == 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	292 return (-1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	293
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	294 return (parser_compare_nodes(left->ast_node, right->ast_node));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	295
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	296 } /* parser_compare() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	297
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	298
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	299 /* parser_newastobject(node* ast)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	300 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	301 * Allocates a new Python object representing an AST. This is simply the
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	302 * 'wrapper' object that holds a node* and allows it to be passed around in
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	303 * Python code.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	304 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	305 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	306 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	307 parser_newastobject(ast, type)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	308 node *ast;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	309 int type;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	310 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	311 PyAST_Object* o = PyObject_NEW(PyAST_Object, &PyAST_Type);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	312
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	313 if (o != 0) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	314 o->ast_node = ast;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	315 o->ast_type = type;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	316 }
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	317 else {
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	318 PyNode_Free(ast);
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	319 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	320 return ((PyObject*)o);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	321
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	322 } /* parser_newastobject() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	323
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	324
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	325 /* void parser_free(PyAST_Object* ast)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	326 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	327 * This is called by a del statement that reduces the reference count to 0.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	328 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	329 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	330 static void
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	331 parser_free(ast)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	332 PyAST_Object *ast;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	333 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	334 PyNode_Free(ast->ast_node);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	335 PyMem_DEL(ast);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	336
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	337 } /* parser_free() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	338
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	339
11297 2560236ecedb parser__pickler(): Don't drop the third argument to Fred Drake <fdrake@acm.org> parents: 11266 diff changeset	340 /* parser_ast2tuple(PyObject* self, PyObject* args, PyObject* kw)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	341 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	342 * This provides conversion from a node* to a tuple object that can be
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	343 * returned to the Python-level caller. The AST object is not modified.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	344 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	345 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	346 static PyObject*
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	347 parser_ast2tuple(self, args, kw)
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	348 PyAST_Object *self;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	349 PyObject *args;
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	350 PyObject *kw;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	351 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	352 PyObject *line_option = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	353 PyObject *res = 0;
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	354 int ok;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	355
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	356 static char *keywords[] = {"ast", "line_info", NULL};
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	357
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	358 if (self == NULL) {
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	359 ok = PyArg_ParseTupleAndKeywords(args, kw, "O!\|O:ast2tuple", keywords,
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	360 &PyAST_Type, &self, &line_option);
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	361 }
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	362 else
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	363 ok = PyArg_ParseTupleAndKeywords(args, kw, "\|O:totuple", &keywords[1],
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	364 &line_option);
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	365 if (ok != 0) {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	366 int lineno = 0;
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	367 if (line_option != NULL) {
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	368 lineno = (PyObject_IsTrue(line_option) != 0) ? 1 : 0;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	369 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	370 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	371 * Convert AST into a tuple representation. Use Guido's function,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	372 * since it's known to work already.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	373 */
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	374 res = node2tuple(((PyAST_Object*)self)->ast_node,
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	375 PyTuple_New, PyTuple_SetItem, lineno);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	376 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	377 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	378
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	379 } /* parser_ast2tuple() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	380
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	381
11297 2560236ecedb parser__pickler(): Don't drop the third argument to Fred Drake <fdrake@acm.org> parents: 11266 diff changeset	382 /* parser_ast2list(PyObject* self, PyObject* args, PyObject* kw)
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	383 *
11297 2560236ecedb parser__pickler(): Don't drop the third argument to Fred Drake <fdrake@acm.org> parents: 11266 diff changeset	384 * This provides conversion from a node* to a list object that can be
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	385 * returned to the Python-level caller. The AST object is not modified.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	386 *
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	387 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	388 static PyObject*
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	389 parser_ast2list(self, args, kw)
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	390 PyAST_Object *self;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	391 PyObject *args;
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	392 PyObject *kw;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	393 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	394 PyObject *line_option = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	395 PyObject *res = 0;
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	396 int ok;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	397
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	398 static char *keywords[] = {"ast", "line_info", NULL};
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	399
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	400 if (self == NULL)
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	401 ok = PyArg_ParseTupleAndKeywords(args, kw, "O!\|O:ast2list", keywords,
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	402 &PyAST_Type, &self, &line_option);
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	403 else
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	404 ok = PyArg_ParseTupleAndKeywords(args, kw, "\|O:tolist", &keywords[1],
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	405 &line_option);
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	406 if (ok) {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	407 int lineno = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	408 if (line_option != 0) {
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	409 lineno = PyObject_IsTrue(line_option) ? 1 : 0;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	410 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	411 /*
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	412 * Convert AST into a tuple representation. Use Guido's function,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	413 * since it's known to work already.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	414 */
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	415 res = node2tuple(self->ast_node,
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	416 PyList_New, PyList_SetItem, lineno);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	417 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	418 return (res);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	419
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	420 } /* parser_ast2list() */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	421
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	422
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	423 /* parser_compileast(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	424 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	425 * This function creates code objects from the parse tree represented by
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	426 * the passed-in data object. An optional file name is passed in as well.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	427 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	428 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	429 static PyObject*
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	430 parser_compileast(self, args, kw)
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	431 PyAST_Object *self;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	432 PyObject *args;
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	433 PyObject *kw;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	434 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	435 PyObject* res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	436 char* str = "<ast>";
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	437 int ok;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	438
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	439 static char *keywords[] = {"ast", "filename", NULL};
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	440
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	441 if (self == NULL)
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	442 ok = PyArg_ParseTupleAndKeywords(args, kw, "O!\|s:compileast", keywords,
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	443 &PyAST_Type, &self, &str);
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	444 else
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	445 ok = PyArg_ParseTupleAndKeywords(args, kw, "\|s:compile", &keywords[1],
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	446 &str);
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	447
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	448 if (ok)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	449 res = (PyObject *)PyNode_Compile(self->ast_node, str);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	450
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	451 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	452
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	453 } /* parser_compileast() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	454
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	455
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	456 /* PyObject* parser_isexpr(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	457 * PyObject* parser_issuite(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	458 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	459 * Checks the passed-in AST object to determine if it is an expression or
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	460 * a statement suite, respectively. The return is a Python truth value.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	461 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	462 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	463 static PyObject*
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	464 parser_isexpr(self, args, kw)
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	465 PyAST_Object *self;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	466 PyObject *args;
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	467 PyObject *kw;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	468 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	469 PyObject* res = 0;
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	470 int ok;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	471
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	472 static char *keywords[] = {"ast", NULL};
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	473
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	474 if (self == NULL)
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	475 ok = PyArg_ParseTupleAndKeywords(args, kw, "O!:isexpr", keywords,
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	476 &PyAST_Type, &self);
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	477 else
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	478 ok = PyArg_ParseTupleAndKeywords(args, kw, ":isexpr", &keywords[1]);
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	479
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	480 if (ok) {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	481 /* Check to see if the AST represents an expression or not. */
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	482 res = (self->ast_type == PyAST_EXPR) ? Py_True : Py_False;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	483 Py_INCREF(res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	484 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	485 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	486
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	487 } /* parser_isexpr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	488
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	489
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	490 static PyObject*
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	491 parser_issuite(self, args, kw)
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	492 PyAST_Object *self;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	493 PyObject *args;
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	494 PyObject *kw;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	495 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	496 PyObject* res = 0;
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	497 int ok;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	498
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	499 static char *keywords[] = {"ast", NULL};
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	500
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	501 if (self == NULL)
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	502 ok = PyArg_ParseTupleAndKeywords(args, kw, "O!:issuite", keywords,
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	503 &PyAST_Type, &self);
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	504 else
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	505 ok = PyArg_ParseTupleAndKeywords(args, kw, ":issuite", &keywords[1]);
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	506
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	507 if (ok) {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	508 /* Check to see if the AST represents an expression or not. */
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	509 res = (self->ast_type == PyAST_EXPR) ? Py_False : Py_True;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	510 Py_INCREF(res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	511 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	512 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	513
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	514 } /* parser_issuite() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	515
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	516
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	517 #define PUBLIC_METHOD_TYPE (METH_VARARGS\|METH_KEYWORDS)
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	518
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	519 static PyMethodDef
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	520 parser_methods[] = {
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	521 {"compile", (PyCFunction)parser_compileast, PUBLIC_METHOD_TYPE,
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	522 "Compile this AST object into a code object."},
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	523 {"isexpr", (PyCFunction)parser_isexpr, PUBLIC_METHOD_TYPE,
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	524 "Determines if this AST object was created from an expression."},
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	525 {"issuite", (PyCFunction)parser_issuite, PUBLIC_METHOD_TYPE,
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	526 "Determines if this AST object was created from a suite."},
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	527 {"tolist", (PyCFunction)parser_ast2list, PUBLIC_METHOD_TYPE,
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	528 "Creates a list-tree representation of this AST."},
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	529 {"totuple", (PyCFunction)parser_ast2tuple, PUBLIC_METHOD_TYPE,
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	530 "Creates a tuple-tree representation of this AST."},
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	531
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	532 {NULL, NULL, 0, NULL}
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	533 };
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	534
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	535
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	536 static PyObject*
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	537 parser_getattr(self, name)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	538 PyObject *self;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	539 char *name;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	540 {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	541 return (Py_FindMethod(parser_methods, self, name));
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	542
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	543 } /* parser_getattr() */
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	544
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	545
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	546 /* err_string(char* message)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	547 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	548 * Sets the error string for an exception of type ParserError.
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	549 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	550 */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	551 static void
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	552 err_string(message)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	553 char *message;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	554 {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	555 PyErr_SetString(parser_error, message);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	556
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	557 } /* err_string() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	558
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	559
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	560 /* PyObject* parser_do_parse(PyObject* args, int type)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	561 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	562 * Internal function to actually execute the parse and return the result if
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	563 * successful, or set an exception if not.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	564 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	565 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	566 static PyObject*
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	567 parser_do_parse(args, kw, argspec, type)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	568 PyObject *args;
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	569 PyObject *kw;
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	570 char *argspec;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	571 int type;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	572 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	573 char* string = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	574 PyObject* res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	575
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	576 static char *keywords[] = {"source", NULL};
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	577
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	578 if (PyArg_ParseTupleAndKeywords(args, kw, argspec, keywords, &string)) {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	579 node* n = PyParser_SimpleParseString(string,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	580 (type == PyAST_EXPR)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	581 ? eval_input : file_input);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	582
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	583 if (n != 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	584 res = parser_newastobject(n, type);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	585 else
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	586 err_string("Could not parse string.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	587 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	588 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	589
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	590 } /* parser_do_parse() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	591
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	592
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	593 /* PyObject* parser_expr(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	594 * PyObject* parser_suite(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	595 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	596 * External interfaces to the parser itself. Which is called determines if
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	597 * the parser attempts to recognize an expression ('eval' form) or statement
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	598 * suite ('exec' form). The real work is done by parser_do_parse() above.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	599 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	600 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	601 static PyObject*
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	602 parser_expr(self, args, kw)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	603 PyObject *self;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	604 PyObject *args;
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	605 PyObject *kw;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	606 {
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	607 NOTE(ARGUNUSED(self))
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	608 return (parser_do_parse(args, kw, "s:expr", PyAST_EXPR));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	609
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	610 } /* parser_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	611
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	612
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	613 static PyObject*
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	614 parser_suite(self, args, kw)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	615 PyObject *self;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	616 PyObject *args;
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	617 PyObject *kw;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	618 {
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	619 NOTE(ARGUNUSED(self))
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	620 return (parser_do_parse(args, kw, "s:suite", PyAST_SUITE));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	621
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	622 } /* parser_suite() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	623
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	624
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	625
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	626 /* This is the messy part of the code. Conversion from a tuple to an AST
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	627 * object requires that the input tuple be valid without having to rely on
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	628 * catching an exception from the compiler. This is done to allow the
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	629 * compiler itself to remain fast, since most of its input will come from
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	630 * the parser directly, and therefore be known to be syntactically correct.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	631 * This validation is done to ensure that we don't core dump the compile
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	632 * phase, returning an exception instead.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	633 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	634 * Two aspects can be broken out in this code: creating a node tree from
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	635 * the tuple passed in, and verifying that it is indeed valid. It may be
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	636 * advantageous to expand the number of AST types to include funcdefs and
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	637 * lambdadefs to take advantage of the optimizer, recognizing those ASTs
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	638 * here. They are not necessary, and not quite as useful in a raw form.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	639 * For now, let's get expressions and suites working reliably.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	640 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	641
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	642
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	643 staticforward node* build_node_tree Py_PROTO((PyObject *tuple));
3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	644 staticforward int validate_expr_tree Py_PROTO((node *tree));
3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	645 staticforward int validate_file_input Py_PROTO((node *tree));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	646
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	647
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	648 /* PyObject* parser_tuple2ast(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	649 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	650 * This is the public function, called from the Python code. It receives a
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	651 * single tuple object from the caller, and creates an AST object if the
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	652 * tuple can be validated. It does this by checking the first code of the
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	653 * tuple, and, if acceptable, builds the internal representation. If this
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	654 * step succeeds, the internal representation is validated as fully as
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	655 * possible with the various validate_*() routines defined below.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	656 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	657 * This function must be changed if support is to be added for PyAST_FRAGMENT
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	658 * AST objects.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	659 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	660 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	661 static PyObject*
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	662 parser_tuple2ast(self, args, kw)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	663 PyObject *self;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	664 PyObject *args;
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	665 PyObject *kw;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	666 {
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	667 NOTE(ARGUNUSED(self))
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	668 PyObject *ast = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	669 PyObject *tuple = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	670 PyObject *temp = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	671 int ok;
4600 d36250aefb82 Keep gcc -Wall happy. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	672 int start_sym = 0;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	673
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	674 static char *keywords[] = {"sequence", NULL};
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	675
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	676 if (!PyArg_ParseTupleAndKeywords(args, kw, "O:tuple2ast", keywords,
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	677 &tuple))
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	678 return (0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	679 if (!PySequence_Check(tuple)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	680 PyErr_SetString(PyExc_ValueError,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	681 "tuple2ast() requires a single sequence argument");
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	682 return (0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	683 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	684 /*
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	685 * This mess of tests is written this way so we can use the abstract
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	686 * object interface (AOI). Unfortunately, the AOI increments reference
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	687 * counts, which requires that we store a pointer to retrieved object
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	688 * so we can DECREF it after the check. But we really should accept
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	689 * lists as well as tuples at the very least.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	690 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	691 ok = PyObject_Length(tuple) >= 2;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	692 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	693 temp = PySequence_GetItem(tuple, 0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	694 ok = (temp != NULL) && PyInt_Check(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	695 if (ok)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	696 /* this is used after the initial checks: */
10215 d1686cf08d11 When the parameter to PyInt_AsLong() has already been checked with Fred Drake <fdrake@acm.org> parents: 9588 diff changeset	697 start_sym = PyInt_AS_LONG(temp);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	698 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	699 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	700 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	701 temp = PySequence_GetItem(tuple, 1);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	702 ok = (temp != NULL) && PySequence_Check(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	703 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	704 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	705 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	706 temp = PySequence_GetItem(tuple, 1);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	707 ok = (temp != NULL) && PyObject_Length(temp) >= 2;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	708 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	709 PyObject *temp2 = PySequence_GetItem(temp, 0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	710 if (temp2 != NULL) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	711 ok = PyInt_Check(temp2);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	712 Py_DECREF(temp2);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	713 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	714 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	715 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	716 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	717 /* If we've failed at some point, get out of here. */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	718 if (!ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	719 err_string("malformed sequence for tuple2ast()");
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	720 return (0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	721 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	722 /*
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	723 * This might be a valid parse tree, but let's do a quick check
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	724 * before we jump the gun.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	725 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	726 if (start_sym == eval_input) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	727 /* Might be an eval form. */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	728 node* expression = build_node_tree(tuple);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	729
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	730 if ((expression != 0) && validate_expr_tree(expression))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	731 ast = parser_newastobject(expression, PyAST_EXPR);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	732 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	733 else if (start_sym == file_input) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	734 /* This looks like an exec form so far. */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	735 node* suite_tree = build_node_tree(tuple);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	736
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	737 if ((suite_tree != 0) && validate_file_input(suite_tree))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	738 ast = parser_newastobject(suite_tree, PyAST_SUITE);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	739 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	740 else
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	741 /* This is a fragment, and is not yet supported. Maybe they
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	742 * will be if I find a use for them.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	743 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	744 err_string("Fragmentary parse trees not supported.");
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	745
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	746 /* Make sure we throw an exception on all errors. We should never
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	747 * get this, but we'd do well to be sure something is done.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	748 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	749 if ((ast == 0) && !PyErr_Occurred())
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	750 err_string("Unspecified ast error occurred.");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	751
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	752 return (ast);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	753
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	754 } /* parser_tuple2ast() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	755
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	756
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	757 /* int check_terminal_tuple()
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	758 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	759 * Check a tuple to determine that it is indeed a valid terminal
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	760 * node. The node is known to be required as a terminal, so we throw
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	761 * an exception if there is a failure.
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	762 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	763 * The format of an acceptable terminal tuple is "(is[i])": the fact
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	764 * that elem is a tuple and the integer is a valid terminal symbol
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	765 * has been established before this function is called. We must
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	766 * check the length of the tuple and the type of the second element
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	767 * and optional third element. We do NOT check the actual text of
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	768 * the string element, which we could do in many cases. This is done
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	769 * by the validate_*() functions which operate on the internal
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	770 * representation.
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	771 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	772 static int
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	773 check_terminal_tuple(elem)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	774 PyObject *elem;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	775 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	776 int len = PyObject_Length(elem);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	777 int res = 1;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	778 char* str = "Illegal terminal symbol; bad node length.";
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	779
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	780 if ((len == 2) \|\| (len == 3)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	781 PyObject *temp = PySequence_GetItem(elem, 1);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	782 res = PyString_Check(temp);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	783 str = "Illegal terminal symbol; expected a string.";
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	784 if (res && (len == 3)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	785 PyObject* third = PySequence_GetItem(elem, 2);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	786 res = PyInt_Check(third);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	787 str = "Invalid third element of terminal node.";
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	788 Py_XDECREF(third);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	789 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	790 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	791 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	792 else {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	793 res = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	794 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	795 if (!res) {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	796 elem = Py_BuildValue("(os)", elem, str);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	797 PyErr_SetObject(parser_error, elem);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	798 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	799 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	800
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	801 } /* check_terminal_tuple() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	802
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	803
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	804 /* node* build_node_children()
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	805 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	806 * Iterate across the children of the current non-terminal node and build
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	807 * their structures. If successful, return the root of this portion of
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	808 * the tree, otherwise, 0. Any required exception will be specified already,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	809 * and no memory will have been deallocated.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	810 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	811 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	812 static node*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	813 build_node_children(tuple, root, line_num)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	814 PyObject *tuple;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	815 node *root;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	816 int *line_num;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	817 {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	818 int len = PyObject_Length(tuple);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	819 int i;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	820
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	821 for (i = 1; i < len; ++i) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	822 /* elem must always be a tuple, however simple */
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	823 PyObject* elem = PySequence_GetItem(tuple, i);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	824 int ok = elem != NULL;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	825 long type = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	826 char *strn = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	827
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	828 if (ok)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	829 ok = PySequence_Check(elem);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	830 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	831 PyObject *temp = PySequence_GetItem(elem, 0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	832 if (temp == NULL)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	833 ok = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	834 else {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	835 ok = PyInt_Check(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	836 if (ok)
10215 d1686cf08d11 When the parameter to PyInt_AsLong() has already been checked with Fred Drake <fdrake@acm.org> parents: 9588 diff changeset	837 type = PyInt_AS_LONG(temp);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	838 Py_DECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	839 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	840 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	841 if (!ok) {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	842 PyErr_SetObject(parser_error,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	843 Py_BuildValue("(os)", elem,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	844 "Illegal node construct."));
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	845 Py_XDECREF(elem);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	846 return (0);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	847 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	848 if (ISTERMINAL(type)) {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	849 if (check_terminal_tuple(elem)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	850 PyObject *temp = PySequence_GetItem(elem, 1);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	851
6469 dca9bdf5ea08 Remove requirement for strdup() since it causes so many troubles for too many Fred Drake <fdrake@acm.org> parents: 6465 diff changeset	852 /* check_terminal_tuple() already verified it's a string */
dca9bdf5ea08 Remove requirement for strdup() since it causes so many troubles for too many Fred Drake <fdrake@acm.org> parents: 6465 diff changeset	853 strn = (char *)malloc(PyString_GET_SIZE(temp) + 1);
dca9bdf5ea08 Remove requirement for strdup() since it causes so many troubles for too many Fred Drake <fdrake@acm.org> parents: 6465 diff changeset	854 if (strn != NULL)
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	855 (void) strcpy(strn, PyString_AS_STRING(temp));
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	856 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	857
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	858 if (PyObject_Length(elem) == 3) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	859 PyObject* temp = PySequence_GetItem(elem, 2);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	860 *line_num = PyInt_AsLong(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	861 Py_DECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	862 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	863 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	864 else {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	865 Py_XDECREF(elem);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	866 return (0);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	867 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	868 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	869 else if (!ISNONTERMINAL(type)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	870 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	871 * It has to be one or the other; this is an error.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	872 * Throw an exception.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	873 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	874 PyErr_SetObject(parser_error,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	875 Py_BuildValue("(os)", elem,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	876 "Unknown node type."));
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	877 Py_XDECREF(elem);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	878 return (0);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	879 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	880 PyNode_AddChild(root, type, strn, *line_num);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	881
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	882 if (ISNONTERMINAL(type)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	883 node* new_child = CHILD(root, i - 1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	884
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	885 if (new_child != build_node_children(elem, new_child, line_num)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	886 Py_XDECREF(elem);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	887 return (0);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	888 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	889 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	890 else if (type == NEWLINE) { /* It's true: we increment the */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	891 ++(line_num); / line number after the newline! */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	892 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	893 Py_XDECREF(elem);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	894 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	895 return (root);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	896
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	897 } /* build_node_children() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	898
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	899
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	900 static node*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	901 build_node_tree(tuple)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	902 PyObject *tuple;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	903 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	904 node* res = 0;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	905 PyObject *temp = PySequence_GetItem(tuple, 0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	906 long num = -1;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	907
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	908 if (temp != NULL)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	909 num = PyInt_AsLong(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	910 Py_XDECREF(temp);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	911 if (ISTERMINAL(num)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	912 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	913 * The tuple is simple, but it doesn't start with a start symbol.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	914 * Throw an exception now and be done with it.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	915 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	916 tuple = Py_BuildValue("(os)", tuple,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	917 "Illegal ast tuple; cannot start with terminal symbol.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	918 PyErr_SetObject(parser_error, tuple);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	919 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	920 else if (ISNONTERMINAL(num)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	921 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	922 * Not efficient, but that can be handled later.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	923 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	924 int line_num = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	925
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	926 res = PyNode_New(num);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	927 if (res != build_node_children(tuple, res, &line_num)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	928 PyNode_Free(res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	929 res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	930 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	931 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	932 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	933 /* The tuple is illegal -- if the number is neither TERMINAL nor
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	934 * NONTERMINAL, we can't use it.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	935 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	936 PyErr_SetObject(parser_error,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	937 Py_BuildValue("(os)", tuple,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	938 "Illegal component tuple."));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	939
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	940 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	941
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	942 } /* build_node_tree() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	943
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	944
4092 8592fa4a119b Support for old CPP Guido van Rossum <guido@python.org> parents: 4084 diff changeset	945 #ifdef HAVE_OLD_CPP
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	946 #define VALIDATER(n) static int validate_/*/n Py_PROTO((node tree))
4092 8592fa4a119b Support for old CPP Guido van Rossum <guido@python.org> parents: 4084 diff changeset	947 #else
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	948 #define VALIDATER(n) static int validate_##n Py_PROTO((node *tree))
4092 8592fa4a119b Support for old CPP Guido van Rossum <guido@python.org> parents: 4084 diff changeset	949 #endif
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	950
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	951
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	952 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	953 * Validation routines used within the validation section:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	954 */
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	955 staticforward int validate_terminal Py_PROTO((node *terminal,
3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	956 int type, char *string));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	957
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	958 #define validate_ampersand(ch) validate_terminal(ch, AMPER, "&")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	959 #define validate_circumflex(ch) validate_terminal(ch, CIRCUMFLEX, "^")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	960 #define validate_colon(ch) validate_terminal(ch, COLON, ":")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	961 #define validate_comma(ch) validate_terminal(ch, COMMA, ",")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	962 #define validate_dedent(ch) validate_terminal(ch, DEDENT, "")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	963 #define validate_equal(ch) validate_terminal(ch, EQUAL, "=")
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	964 #define validate_indent(ch) validate_terminal(ch, INDENT, (char*)NULL)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	965 #define validate_lparen(ch) validate_terminal(ch, LPAR, "(")
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	966 #define validate_newline(ch) validate_terminal(ch, NEWLINE, (char*)NULL)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	967 #define validate_rparen(ch) validate_terminal(ch, RPAR, ")")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	968 #define validate_semi(ch) validate_terminal(ch, SEMI, ";")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	969 #define validate_star(ch) validate_terminal(ch, STAR, "*")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	970 #define validate_vbar(ch) validate_terminal(ch, VBAR, "\|")
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	971 #define validate_doublestar(ch) validate_terminal(ch, DOUBLESTAR, "**")
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	972 #define validate_dot(ch) validate_terminal(ch, DOT, ".")
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	973 #define validate_name(ch, str) validate_terminal(ch, NAME, str)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	974
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	975 VALIDATER(node); VALIDATER(small_stmt);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	976 VALIDATER(class); VALIDATER(node);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	977 VALIDATER(parameters); VALIDATER(suite);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	978 VALIDATER(testlist); VALIDATER(varargslist);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	979 VALIDATER(fpdef); VALIDATER(fplist);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	980 VALIDATER(stmt); VALIDATER(simple_stmt);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	981 VALIDATER(expr_stmt); VALIDATER(power);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	982 VALIDATER(print_stmt); VALIDATER(del_stmt);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	983 VALIDATER(return_stmt);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	984 VALIDATER(raise_stmt); VALIDATER(import_stmt);
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	985 VALIDATER(global_stmt);
5236 b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	986 VALIDATER(assert_stmt);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	987 VALIDATER(exec_stmt); VALIDATER(compound_stmt);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	988 VALIDATER(while); VALIDATER(for);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	989 VALIDATER(try); VALIDATER(except_clause);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	990 VALIDATER(test); VALIDATER(and_test);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	991 VALIDATER(not_test); VALIDATER(comparison);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	992 VALIDATER(comp_op); VALIDATER(expr);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	993 VALIDATER(xor_expr); VALIDATER(and_expr);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	994 VALIDATER(shift_expr); VALIDATER(arith_expr);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	995 VALIDATER(term); VALIDATER(factor);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	996 VALIDATER(atom); VALIDATER(lambdef);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	997 VALIDATER(trailer); VALIDATER(subscript);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	998 VALIDATER(subscriptlist); VALIDATER(sliceop);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	999 VALIDATER(exprlist); VALIDATER(dictmaker);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1000 VALIDATER(arglist); VALIDATER(argument);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1001
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1002
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1003 #define is_even(n) (((n) & 1) == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1004 #define is_odd(n) (((n) & 1) == 1)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1005
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1006
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1007 static int
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1008 validate_ntype(n, t)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1009 node *n;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1010 int t;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1011 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1012 int res = (TYPE(n) == t);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1013
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1014 if (!res) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1015 char buffer[128];
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1016 (void) sprintf(buffer, "Expected node type %d, got %d.", t, TYPE(n));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1017 err_string(buffer);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1018 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1019 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1020
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1021 } /* validate_ntype() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1022
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1023
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1024 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1025 validate_numnodes(n, num, name)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1026 node *n;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1027 int num;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1028 const char *const name;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1029 {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1030 if (NCH(n) != num) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1031 char buff[60];
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1032 (void) sprintf(buff, "Illegal number of children for %s node.", name);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1033 err_string(buff);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1034 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1035 return (NCH(n) == num);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1036
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1037 } /* validate_numnodes() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1038
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1039
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1040 static int
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1041 validate_terminal(terminal, type, string)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1042 node *terminal;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1043 int type;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1044 char *string;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1045 {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1046 int res = (validate_ntype(terminal, type)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1047 && ((string == 0) \|\| (strcmp(string, STR(terminal)) == 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1048
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1049 if (!res && !PyErr_Occurred()) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1050 char buffer[60];
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1051 (void) sprintf(buffer, "Illegal terminal: expected \"%s\"", string);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1052 err_string(buffer);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1053 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1054 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1055
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1056 } /* validate_terminal() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1057
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1058
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1059 /* X (',' X) [',']
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1060 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1061 static int
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1062 validate_repeating_list(tree, ntype, vfunc, name)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1063 node *tree;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1064 int ntype;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1065 int (*vfunc)();
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1066 const char *const name;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1067 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1068 int nch = NCH(tree);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1069 int res = (nch && validate_ntype(tree, ntype)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1070 && vfunc(CHILD(tree, 0)));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1071
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1072 if (!res && !PyErr_Occurred())
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1073 (void) validate_numnodes(tree, 1, name);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1074 else {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1075 if (is_even(nch))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1076 res = validate_comma(CHILD(tree, --nch));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1077 if (res && nch > 1) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1078 int pos = 1;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1079 for ( ; res && pos < nch; pos += 2)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1080 res = (validate_comma(CHILD(tree, pos))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1081 && vfunc(CHILD(tree, pos + 1)));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1082 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1083 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1084 return (res);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1085
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1086 } /* validate_repeating_list() */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1087
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1088
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1089 /* VALIDATE(class)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1090 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1091 * classdef:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1092 * 'class' NAME ['(' testlist ')'] ':' suite
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1093 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1094 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1095 validate_class(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1096 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1097 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1098 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1099 int res = validate_ntype(tree, classdef) && ((nch == 4) \|\| (nch == 7));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1100
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1101 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1102 res = (validate_name(CHILD(tree, 0), "class")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1103 && validate_ntype(CHILD(tree, 1), NAME)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1104 && validate_colon(CHILD(tree, nch - 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1105 && validate_suite(CHILD(tree, nch - 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1106 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1107 else
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1108 (void) validate_numnodes(tree, 4, "class");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1109 if (res && (nch == 7)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1110 res = (validate_lparen(CHILD(tree, 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1111 && validate_testlist(CHILD(tree, 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1112 && validate_rparen(CHILD(tree, 4)));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1113 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1114 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1115
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1116 } /* validate_class() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1117
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1118
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1119 /* if_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1120 * 'if' test ':' suite ('elif' test ':' suite)* ['else' ':' suite]
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1121 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1122 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1123 validate_if(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1124 node *tree;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1125 {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1126 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1127 int res = (validate_ntype(tree, if_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1128 && (nch >= 4)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1129 && validate_name(CHILD(tree, 0), "if")
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1130 && validate_test(CHILD(tree, 1))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1131 && validate_colon(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1132 && validate_suite(CHILD(tree, 3)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1133
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1134 if (res && ((nch % 4) == 3)) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1135 /* ... 'else' ':' suite */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1136 res = (validate_name(CHILD(tree, nch - 3), "else")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1137 && validate_colon(CHILD(tree, nch - 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1138 && validate_suite(CHILD(tree, nch - 1)));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1139 nch -= 3;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1140 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1141 else if (!res && !PyErr_Occurred())
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1142 (void) validate_numnodes(tree, 4, "if");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1143 if ((nch % 4) != 0)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1144 /* Will catch the case for nch < 4 */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1145 res = validate_numnodes(tree, 0, "if");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1146 else if (res && (nch > 4)) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1147 /* ... ('elif' test ':' suite)+ ... */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1148 int j = 4;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1149 while ((j < nch) && res) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1150 res = (validate_name(CHILD(tree, j), "elif")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1151 && validate_colon(CHILD(tree, j + 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1152 && validate_test(CHILD(tree, j + 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1153 && validate_suite(CHILD(tree, j + 3)));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1154 j += 4;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1155 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1156 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1157 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1158
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1159 } /* validate_if() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1160
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1161
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1162 /* parameters:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1163 * '(' [varargslist] ')'
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1164 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1165 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1166 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1167 validate_parameters(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1168 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1169 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1170 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1171 int res = validate_ntype(tree, parameters) && ((nch == 2) \|\| (nch == 3));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1172
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1173 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1174 res = (validate_lparen(CHILD(tree, 0))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1175 && validate_rparen(CHILD(tree, nch - 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1176 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1177 res = validate_varargslist(CHILD(tree, 1));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1178 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1179 else
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1180 (void) validate_numnodes(tree, 2, "parameters");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1181
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1182 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1183
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1184 } /* validate_parameters() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1185
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1186
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1187 /* VALIDATE(suite)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1188 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1189 * suite:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1190 * simple_stmt
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1191 * \| NEWLINE INDENT stmt+ DEDENT
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1192 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1193 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1194 validate_suite(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1195 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1196 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1197 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1198 int res = (validate_ntype(tree, suite) && ((nch == 1) \|\| (nch >= 4)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1199
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1200 if (res && (nch == 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1201 res = validate_simple_stmt(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1202 else if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1203 /* NEWLINE INDENT stmt+ DEDENT */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1204 res = (validate_newline(CHILD(tree, 0))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1205 && validate_indent(CHILD(tree, 1))
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1206 && validate_stmt(CHILD(tree, 2))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1207 && validate_dedent(CHILD(tree, nch - 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1208
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1209 if (res && (nch > 4)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1210 int i = 3;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1211 --nch; /* forget the DEDENT */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1212 for ( ; res && (i < nch); ++i)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1213 res = validate_stmt(CHILD(tree, i));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1214 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1215 else if (nch < 4)
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1216 res = validate_numnodes(tree, 4, "suite");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1217 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1218 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1219
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1220 } /* validate_suite() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1221
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1222
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1223 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1224 validate_testlist(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1225 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1226 {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1227 return (validate_repeating_list(tree, testlist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1228 validate_test, "testlist"));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1229
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1230 } /* validate_testlist() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1231
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1232
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1233 /* VALIDATE(varargslist)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1234 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1235 * varargslist:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1236 * (fpdef ['=' test] ',')* ('' NAME [',' '' '' NAME] \| '' '*' NAME)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1237 * \| fpdef ['=' test] (',' fpdef ['=' test])* [',']
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1238 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1239 * (fpdef ['=' test] ',')*
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1240 * ('' NAME [',' (''\|'' '*') NAME]
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1241 * \| ('*'\|'' '*') NAME)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1242 * \| fpdef ['=' test] (',' fpdef ['=' test])* [',']
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1243 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1244 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1245 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1246 validate_varargslist(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1247 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1248 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1249 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1250 int res = validate_ntype(tree, varargslist) && (nch != 0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1251
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1252 if (res && (nch >= 2) && (TYPE(CHILD(tree, nch - 1)) == NAME)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1253 /* (fpdef ['=' test] ',')*
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1254 * ('' NAME [',' '' '' NAME] \| '' '*' NAME)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1255 */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1256 int pos = 0;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1257 int remaining = nch;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1258
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1259 while (res && (TYPE(CHILD(tree, pos)) == fpdef)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1260 res = validate_fpdef(CHILD(tree, pos));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1261 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1262 if (TYPE(CHILD(tree, pos + 1)) == EQUAL) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1263 res = validate_test(CHILD(tree, pos + 2));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1264 pos += 2;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1265 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1266 res = res && validate_comma(CHILD(tree, pos + 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1267 pos += 2;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1268 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1269 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1270 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1271 remaining = nch - pos;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1272 res = ((remaining == 2) \|\| (remaining == 3)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1273 \|\| (remaining == 5) \|\| (remaining == 6));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1274 if (!res)
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1275 (void) validate_numnodes(tree, 2, "varargslist");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1276 else if (TYPE(CHILD(tree, pos)) == DOUBLESTAR)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1277 return ((remaining == 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1278 && validate_ntype(CHILD(tree, pos+1), NAME));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1279 else {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1280 res = validate_star(CHILD(tree, pos++));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1281 --remaining;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1282 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1283 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1284 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1285 if (remaining == 2) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1286 res = (validate_star(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1287 && validate_ntype(CHILD(tree, pos + 1), NAME));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1288 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1289 else {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1290 res = validate_ntype(CHILD(tree, pos++), NAME);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1291 if (res && (remaining >= 4)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1292 res = validate_comma(CHILD(tree, pos));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1293 if (--remaining == 3)
4287 f2f5cd7cb5b5 (parsermodule.c): Fixed sloppy typo: '==' -> '=' Fred Drake <fdrake@acm.org> parents: 4099 diff changeset	1294 res = (validate_star(CHILD(tree, pos + 1))
f2f5cd7cb5b5 (parsermodule.c): Fixed sloppy typo: '==' -> '=' Fred Drake <fdrake@acm.org> parents: 4099 diff changeset	1295 && validate_star(CHILD(tree, pos + 2)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1296 else
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1297 res = validate_ntype(CHILD(tree, pos + 1), DOUBLESTAR);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1298 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1299 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1300 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1301 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1302 err_string("Incorrect validation of variable arguments list.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1303 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1304 else if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1305 /* fpdef ['=' test] (',' fpdef ['=' test])* [','] */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1306 if (TYPE(CHILD(tree, nch - 1)) == COMMA)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1307 --nch;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1308
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1309 /* fpdef ['=' test] (',' fpdef ['=' test])* */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1310 res = (is_odd(nch)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1311 && validate_fpdef(CHILD(tree, 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1312
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1313 if (res && (nch > 1)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1314 int pos = 1;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1315 if (TYPE(CHILD(tree, 1)) == EQUAL) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1316 res = validate_test(CHILD(tree, 2));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1317 pos += 2;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1318 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1319 /* ... (',' fpdef ['=' test])* */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1320 for ( ; res && (pos < nch); pos += 2) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1321 /* ',' fpdef */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1322 res = (validate_comma(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1323 && validate_fpdef(CHILD(tree, pos + 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1324 if (res
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1325 && ((nch - pos) > 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1326 && (TYPE(CHILD(tree, pos + 2)) == EQUAL)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1327 /* ['=' test] */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1328 res = validate_test(CHILD(tree, pos + 3));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1329 pos += 2;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1330 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1331 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1332 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1333 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1334 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1335 err_string("Improperly formed argument list.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1336
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1337 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1338
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1339 } /* validate_varargslist() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1340
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1341
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1342 /* VALIDATE(fpdef)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1343 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1344 * fpdef:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1345 * NAME
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1346 * \| '(' fplist ')'
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1347 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1348 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1349 validate_fpdef(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1350 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1351 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1352 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1353 int res = validate_ntype(tree, fpdef);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1354
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1355 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1356 if (nch == 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1357 res = validate_ntype(CHILD(tree, 0), NAME);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1358 else if (nch == 3)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1359 res = (validate_lparen(CHILD(tree, 0))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1360 && validate_fplist(CHILD(tree, 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1361 && validate_rparen(CHILD(tree, 2)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1362 else
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1363 res = validate_numnodes(tree, 1, "fpdef");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1364 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1365 return (res);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1366
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1367 } /* validate_fpdef() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1368
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1369
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1370 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1371 validate_fplist(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1372 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1373 {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1374 return (validate_repeating_list(tree, fplist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1375 validate_fpdef, "fplist"));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1376
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1377 } /* validate_fplist() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1378
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1379
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1380 /* simple_stmt \| compound_stmt
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1381 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1382 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1383 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1384 validate_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1385 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1386 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1387 int res = (validate_ntype(tree, stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1388 && validate_numnodes(tree, 1, "stmt"));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1389
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1390 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1391 tree = CHILD(tree, 0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1392
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1393 if (TYPE(tree) == simple_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1394 res = validate_simple_stmt(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1395 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1396 res = validate_compound_stmt(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1397 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1398 return (res);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1399
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1400 } /* validate_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1401
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1402
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1403 /* small_stmt (';' small_stmt)* [';'] NEWLINE
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1404 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1405 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1406 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1407 validate_simple_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1408 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1409 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1410 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1411 int res = (validate_ntype(tree, simple_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1412 && (nch >= 2)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1413 && validate_small_stmt(CHILD(tree, 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1414 && validate_newline(CHILD(tree, nch - 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1415
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1416 if (nch < 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1417 res = validate_numnodes(tree, 2, "simple_stmt");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1418 --nch; /* forget the NEWLINE */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1419 if (res && is_even(nch))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1420 res = validate_semi(CHILD(tree, --nch));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1421 if (res && (nch > 2)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1422 int i;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1423
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1424 for (i = 1; res && (i < nch); i += 2)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1425 res = (validate_semi(CHILD(tree, i))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1426 && validate_small_stmt(CHILD(tree, i + 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1427 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1428 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1429
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1430 } /* validate_simple_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1431
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1432
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1433 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1434 validate_small_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1435 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1436 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1437 int nch = NCH(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1438 int res = (validate_numnodes(tree, 1, "small_stmt")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1439 && ((TYPE(CHILD(tree, 0)) == expr_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1440 \|\| (TYPE(CHILD(tree, 0)) == print_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1441 \|\| (TYPE(CHILD(tree, 0)) == del_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1442 \|\| (TYPE(CHILD(tree, 0)) == pass_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1443 \|\| (TYPE(CHILD(tree, 0)) == flow_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1444 \|\| (TYPE(CHILD(tree, 0)) == import_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1445 \|\| (TYPE(CHILD(tree, 0)) == global_stmt)
5236 b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1446 \|\| (TYPE(CHILD(tree, 0)) == assert_stmt)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1447 \|\| (TYPE(CHILD(tree, 0)) == exec_stmt)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1448
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1449 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1450 res = validate_node(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1451 else if (nch == 1) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1452 char buffer[60];
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1453 (void) sprintf(buffer, "Unrecognized child node of small_stmt: %d.",
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1454 TYPE(CHILD(tree, 0)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1455 err_string(buffer);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1456 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1457 return (res);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1458
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1459 } /* validate_small_stmt */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1460
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1461
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1462 /* compound_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1463 * if_stmt \| while_stmt \| for_stmt \| try_stmt \| funcdef \| classdef
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1464 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1465 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1466 validate_compound_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1467 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1468 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1469 int res = (validate_ntype(tree, compound_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1470 && validate_numnodes(tree, 1, "compound_stmt"));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1471
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1472 if (!res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1473 return (0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1474
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1475 tree = CHILD(tree, 0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1476 res = ((TYPE(tree) == if_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1477 \|\| (TYPE(tree) == while_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1478 \|\| (TYPE(tree) == for_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1479 \|\| (TYPE(tree) == try_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1480 \|\| (TYPE(tree) == funcdef)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1481 \|\| (TYPE(tree) == classdef));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1482 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1483 res = validate_node(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1484 else {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1485 char buffer[60];
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1486 (void) sprintf(buffer, "Illegal compound statement type: %d.",
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1487 TYPE(tree));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1488 err_string(buffer);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1489 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1490 return (res);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1491
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1492 } /* validate_compound_stmt() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1493
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1494
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1495 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1496 validate_expr_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1497 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1498 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1499 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1500 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1501 int res = (validate_ntype(tree, expr_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1502 && is_odd(nch)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1503 && validate_testlist(CHILD(tree, 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1504
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1505 for (j = 1; res && (j < nch); j += 2)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1506 res = (validate_equal(CHILD(tree, j))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1507 && validate_testlist(CHILD(tree, j + 1)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1508
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1509 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1510
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1511 } /* validate_expr_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1512
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1513
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1514 /* print_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1515 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1516 * 'print' (test ',')* [test]
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1517 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1518 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1519 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1520 validate_print_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1521 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1522 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1523 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1524 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1525 int res = (validate_ntype(tree, print_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1526 && (nch != 0)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1527 && validate_name(CHILD(tree, 0), "print"));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1528
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1529 if (res && is_even(nch)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1530 res = validate_test(CHILD(tree, nch - 1));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1531 --nch;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1532 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1533 else if (!res && !PyErr_Occurred())
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1534 (void) validate_numnodes(tree, 1, "print_stmt");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1535 for (j = 1; res && (j < nch); j += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1536 res = (validate_test(CHILD(tree, j))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1537 && validate_ntype(CHILD(tree, j + 1), COMMA));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1538
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1539 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1540
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1541 } /* validate_print_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1542
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1543
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1544 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1545 validate_del_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1546 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1547 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1548 return (validate_numnodes(tree, 2, "del_stmt")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1549 && validate_name(CHILD(tree, 0), "del")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1550 && validate_exprlist(CHILD(tree, 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1551
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1552 } /* validate_del_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1553
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1554
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1555 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1556 validate_return_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1557 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1558 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1559 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1560 int res = (validate_ntype(tree, return_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1561 && ((nch == 1) \|\| (nch == 2))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1562 && validate_name(CHILD(tree, 0), "return"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1563
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1564 if (res && (nch == 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1565 res = validate_testlist(CHILD(tree, 1));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1566
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1567 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1568
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1569 } /* validate_return_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1570
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1571
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1572 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1573 validate_raise_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1574 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1575 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1576 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1577 int res = (validate_ntype(tree, raise_stmt)
7951 f42b757755eb Support raise with no parameters. Fred Drake <fdrake@acm.org> parents: 6469 diff changeset	1578 && ((nch == 1) \|\| (nch == 2) \|\| (nch == 4) \|\| (nch == 6)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1579
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1580 if (res) {
7951 f42b757755eb Support raise with no parameters. Fred Drake <fdrake@acm.org> parents: 6469 diff changeset	1581 res = validate_name(CHILD(tree, 0), "raise");
f42b757755eb Support raise with no parameters. Fred Drake <fdrake@acm.org> parents: 6469 diff changeset	1582 if (res && (nch >= 2))
f42b757755eb Support raise with no parameters. Fred Drake <fdrake@acm.org> parents: 6469 diff changeset	1583 res = validate_test(CHILD(tree, 1));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1584 if (res && nch > 2) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1585 res = (validate_comma(CHILD(tree, 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1586 && validate_test(CHILD(tree, 3)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1587 if (res && (nch > 4))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1588 res = (validate_comma(CHILD(tree, 4))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1589 && validate_test(CHILD(tree, 5)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1590 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1591 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1592 else
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1593 (void) validate_numnodes(tree, 2, "raise");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1594 if (res && (nch == 4))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1595 res = (validate_comma(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1596 && validate_test(CHILD(tree, 3)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1597
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1598 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1599
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1600 } /* validate_raise_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1601
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1602
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1603 /* import_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1604 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1605 * 'import' dotted_name (',' dotted_name)*
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1606 * \| 'from' dotted_name 'import' ('' \| NAME (',' NAME))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1607 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1608 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1609 validate_import_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1610 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1611 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1612 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1613 int res = (validate_ntype(tree, import_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1614 && (nch >= 2) && is_even(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1615 && validate_ntype(CHILD(tree, 0), NAME)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1616 && validate_ntype(CHILD(tree, 1), dotted_name));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1617
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1618 if (res && (strcmp(STR(CHILD(tree, 0)), "import") == 0)) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1619 int j;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1620
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1621 for (j = 2; res && (j < nch); j += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1622 res = (validate_comma(CHILD(tree, j))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1623 && validate_ntype(CHILD(tree, j + 1), dotted_name));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1624 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1625 else if (res && validate_name(CHILD(tree, 0), "from")) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1626 res = ((nch >= 4) && is_even(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1627 && validate_name(CHILD(tree, 2), "import"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1628 if (nch == 4) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1629 res = ((TYPE(CHILD(tree, 3)) == NAME)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1630 \|\| (TYPE(CHILD(tree, 3)) == STAR));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1631 if (!res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1632 err_string("Illegal import statement.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1633 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1634 else {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1635 /* 'from' NAME 'import' NAME (',' NAME)+ */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1636 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1637 res = validate_ntype(CHILD(tree, 3), NAME);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1638 for (j = 4; res && (j < nch); j += 2)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1639 res = (validate_comma(CHILD(tree, j))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1640 && validate_ntype(CHILD(tree, j + 1), NAME));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1641 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1642 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1643 else
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1644 res = 0;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1645
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1646 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1647
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1648 } /* validate_import_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1649
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1650
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1651 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1652 validate_global_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1653 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1654 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1655 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1656 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1657 int res = (validate_ntype(tree, global_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1658 && is_even(nch) && (nch >= 2));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1659
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1660 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1661 res = (validate_name(CHILD(tree, 0), "global")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1662 && validate_ntype(CHILD(tree, 1), NAME));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1663 for (j = 2; res && (j < nch); j += 2)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1664 res = (validate_comma(CHILD(tree, j))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1665 && validate_ntype(CHILD(tree, j + 1), NAME));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1666
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1667 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1668
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1669 } /* validate_global_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1670
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1671
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1672 /* exec_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1673 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1674 * 'exec' expr ['in' test [',' test]]
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1675 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1676 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1677 validate_exec_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1678 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1679 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1680 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1681 int res = (validate_ntype(tree, exec_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1682 && ((nch == 2) \|\| (nch == 4) \|\| (nch == 6))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1683 && validate_name(CHILD(tree, 0), "exec")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1684 && validate_expr(CHILD(tree, 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1685
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1686 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1687 err_string("Illegal exec statement.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1688 if (res && (nch > 2))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1689 res = (validate_name(CHILD(tree, 2), "in")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1690 && validate_test(CHILD(tree, 3)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1691 if (res && (nch == 6))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1692 res = (validate_comma(CHILD(tree, 4))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1693 && validate_test(CHILD(tree, 5)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1694
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1695 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1696
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1697 } /* validate_exec_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1698
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1699
5236 b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1700 /* assert_stmt:
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1701 *
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1702 * 'assert' test [',' test]
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1703 */
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1704 static int
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1705 validate_assert_stmt(tree)
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1706 node *tree;
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1707 {
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1708 int nch = NCH(tree);
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1709 int res = (validate_ntype(tree, assert_stmt)
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1710 && ((nch == 2) \|\| (nch == 4))
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1711 && (validate_name(CHILD(tree, 0), "__assert__") \|\|
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1712 validate_name(CHILD(tree, 0), "assert"))
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1713 && validate_test(CHILD(tree, 1)));
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1714
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1715 if (!res && !PyErr_Occurred())
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1716 err_string("Illegal assert statement.");
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1717 if (res && (nch > 2))
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1718 res = (validate_comma(CHILD(tree, 2))
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1719 && validate_test(CHILD(tree, 3)));
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1720
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1721 return (res);
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1722
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1723 } /* validate_assert_stmt() */
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1724
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1725
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1726 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1727 validate_while(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1728 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1729 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1730 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1731 int res = (validate_ntype(tree, while_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1732 && ((nch == 4) \|\| (nch == 7))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1733 && validate_name(CHILD(tree, 0), "while")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1734 && validate_test(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1735 && validate_colon(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1736 && validate_suite(CHILD(tree, 3)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1737
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1738 if (res && (nch == 7))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1739 res = (validate_name(CHILD(tree, 4), "else")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1740 && validate_colon(CHILD(tree, 5))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1741 && validate_suite(CHILD(tree, 6)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1742
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1743 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1744
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1745 } /* validate_while() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1746
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1747
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1748 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1749 validate_for(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1750 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1751 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1752 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1753 int res = (validate_ntype(tree, for_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1754 && ((nch == 6) \|\| (nch == 9))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1755 && validate_name(CHILD(tree, 0), "for")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1756 && validate_exprlist(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1757 && validate_name(CHILD(tree, 2), "in")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1758 && validate_testlist(CHILD(tree, 3))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1759 && validate_colon(CHILD(tree, 4))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1760 && validate_suite(CHILD(tree, 5)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1761
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1762 if (res && (nch == 9))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1763 res = (validate_name(CHILD(tree, 6), "else")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1764 && validate_colon(CHILD(tree, 7))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1765 && validate_suite(CHILD(tree, 8)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1766
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1767 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1768
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1769 } /* validate_for() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1770
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1771
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1772 /* try_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1773 * 'try' ':' suite (except_clause ':' suite)+ ['else' ':' suite]
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1774 * \| 'try' ':' suite 'finally' ':' suite
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1775 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1776 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1777 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1778 validate_try(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1779 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1780 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1781 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1782 int pos = 3;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1783 int res = (validate_ntype(tree, try_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1784 && (nch >= 6) && ((nch % 3) == 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1785
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1786 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1787 res = (validate_name(CHILD(tree, 0), "try")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1788 && validate_colon(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1789 && validate_suite(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1790 && validate_colon(CHILD(tree, nch - 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1791 && validate_suite(CHILD(tree, nch - 1)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1792 else {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1793 const char* name = "execpt";
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1794 char buffer[60];
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1795 if (TYPE(CHILD(tree, nch - 3)) != except_clause)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1796 name = STR(CHILD(tree, nch - 3));
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1797 (void) sprintf(buffer,
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1798 "Illegal number of children for try/%s node.", name);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1799 err_string(buffer);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1800 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1801 /* Skip past except_clause sections: */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1802 while (res && (TYPE(CHILD(tree, pos)) == except_clause)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1803 res = (validate_except_clause(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1804 && validate_colon(CHILD(tree, pos + 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1805 && validate_suite(CHILD(tree, pos + 2)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1806 pos += 3;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1807 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1808 if (res && (pos < nch)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1809 res = validate_ntype(CHILD(tree, pos), NAME);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1810 if (res && (strcmp(STR(CHILD(tree, pos)), "finally") == 0))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1811 res = (validate_numnodes(tree, 6, "try/finally")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1812 && validate_colon(CHILD(tree, 4))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1813 && validate_suite(CHILD(tree, 5)));
7982 a909a2869ac5 Make new gcc -Wall happy Guido van Rossum <guido@python.org> parents: 7951 diff changeset	1814 else if (res) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1815 if (nch == (pos + 3)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1816 res = ((strcmp(STR(CHILD(tree, pos)), "except") == 0)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1817 \|\| (strcmp(STR(CHILD(tree, pos)), "else") == 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1818 if (!res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1819 err_string("Illegal trailing triple in try statement.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1820 }
7982 a909a2869ac5 Make new gcc -Wall happy Guido van Rossum <guido@python.org> parents: 7951 diff changeset	1821 else if (nch == (pos + 6)) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1822 res = (validate_name(CHILD(tree, pos), "except")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1823 && validate_colon(CHILD(tree, pos + 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1824 && validate_suite(CHILD(tree, pos + 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1825 && validate_name(CHILD(tree, pos + 3), "else"));
7982 a909a2869ac5 Make new gcc -Wall happy Guido van Rossum <guido@python.org> parents: 7951 diff changeset	1826 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1827 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1828 res = validate_numnodes(tree, pos + 3, "try/except");
7982 a909a2869ac5 Make new gcc -Wall happy Guido van Rossum <guido@python.org> parents: 7951 diff changeset	1829 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1830 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1831 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1832
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1833 } /* validate_try() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1834
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1835
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1836 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1837 validate_except_clause(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1838 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1839 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1840 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1841 int res = (validate_ntype(tree, except_clause)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1842 && ((nch == 1) \|\| (nch == 2) \|\| (nch == 4))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1843 && validate_name(CHILD(tree, 0), "except"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1844
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1845 if (res && (nch > 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1846 res = validate_test(CHILD(tree, 1));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1847 if (res && (nch == 4))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1848 res = (validate_comma(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1849 && validate_test(CHILD(tree, 3)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1850
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1851 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1852
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1853 } /* validate_except_clause() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1854
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1855
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1856 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1857 validate_test(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1858 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1859 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1860 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1861 int res = validate_ntype(tree, test) && is_odd(nch);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1862
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1863 if (res && (TYPE(CHILD(tree, 0)) == lambdef))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1864 res = ((nch == 1)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1865 && validate_lambdef(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1866 else if (res) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1867 int pos;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1868 res = validate_and_test(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1869 for (pos = 1; res && (pos < nch); pos += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1870 res = (validate_name(CHILD(tree, pos), "or")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1871 && validate_and_test(CHILD(tree, pos + 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1872 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1873 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1874
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1875 } /* validate_test() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1876
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1877
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1878 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1879 validate_and_test(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1880 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1881 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1882 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1883 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1884 int res = (validate_ntype(tree, and_test)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1885 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1886 && validate_not_test(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1887
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1888 for (pos = 1; res && (pos < nch); pos += 2)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1889 res = (validate_name(CHILD(tree, pos), "and")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1890 && validate_not_test(CHILD(tree, 0)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1891
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1892 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1893
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1894 } /* validate_and_test() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1895
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1896
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1897 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1898 validate_not_test(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1899 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1900 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1901 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1902 int res = validate_ntype(tree, not_test) && ((nch == 1) \|\| (nch == 2));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1903
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1904 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1905 if (nch == 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1906 res = (validate_name(CHILD(tree, 0), "not")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1907 && validate_not_test(CHILD(tree, 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1908 else if (nch == 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1909 res = validate_comparison(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1910 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1911 return (res);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1912
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1913 } /* validate_not_test() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1914
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1915
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1916 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1917 validate_comparison(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1918 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1919 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1920 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1921 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1922 int res = (validate_ntype(tree, comparison)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1923 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1924 && validate_expr(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1925
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1926 for (pos = 1; res && (pos < nch); pos += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1927 res = (validate_comp_op(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1928 && validate_expr(CHILD(tree, pos + 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1929
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1930 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1931
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1932 } /* validate_comparison() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1933
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1934
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1935 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1936 validate_comp_op(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1937 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1938 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1939 int res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1940 int nch = NCH(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1941
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1942 if (!validate_ntype(tree, comp_op))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1943 return (0);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1944 if (nch == 1) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1945 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1946 * Only child will be a terminal with a well-defined symbolic name
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1947 * or a NAME with a string of either 'is' or 'in'
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1948 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1949 tree = CHILD(tree, 0);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1950 switch (TYPE(tree)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1951 case LESS:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1952 case GREATER:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1953 case EQEQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1954 case EQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1955 case LESSEQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1956 case GREATEREQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1957 case NOTEQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1958 res = 1;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1959 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1960 case NAME:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1961 res = ((strcmp(STR(tree), "in") == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1962 \|\| (strcmp(STR(tree), "is") == 0));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1963 if (!res) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1964 char buff[128];
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1965 (void) sprintf(buff, "Illegal operator: '%s'.", STR(tree));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1966 err_string(buff);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1967 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1968 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1969 default:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1970 err_string("Illegal comparison operator type.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1971 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1972 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1973 }
4600 d36250aefb82 Keep gcc -Wall happy. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	1974 else if ((res = validate_numnodes(tree, 2, "comp_op")) != 0) {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1975 res = (validate_ntype(CHILD(tree, 0), NAME)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1976 && validate_ntype(CHILD(tree, 1), NAME)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1977 && (((strcmp(STR(CHILD(tree, 0)), "is") == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1978 && (strcmp(STR(CHILD(tree, 1)), "not") == 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1979 \|\| ((strcmp(STR(CHILD(tree, 0)), "not") == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1980 && (strcmp(STR(CHILD(tree, 1)), "in") == 0))));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1981 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1982 err_string("Unknown comparison operator.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1983 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1984 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1985
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1986 } /* validate_comp_op() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1987
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1988
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1989 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1990 validate_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1991 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1992 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1993 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1994 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1995 int res = (validate_ntype(tree, expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1996 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1997 && validate_xor_expr(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1998
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1999 for (j = 2; res && (j < nch); j += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2000 res = (validate_xor_expr(CHILD(tree, j))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2001 && validate_vbar(CHILD(tree, j - 1)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2002
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2003 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2004
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2005 } /* validate_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2006
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2007
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2008 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2009 validate_xor_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2010 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2011 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2012 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2013 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2014 int res = (validate_ntype(tree, xor_expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2015 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2016 && validate_and_expr(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2017
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2018 for (j = 2; res && (j < nch); j += 2)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2019 res = (validate_circumflex(CHILD(tree, j - 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2020 && validate_and_expr(CHILD(tree, j)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2021
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2022 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2023
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2024 } /* validate_xor_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2025
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2026
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2027 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2028 validate_and_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2029 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2030 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2031 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2032 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2033 int res = (validate_ntype(tree, and_expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2034 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2035 && validate_shift_expr(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2036
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2037 for (pos = 1; res && (pos < nch); pos += 2)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2038 res = (validate_ampersand(CHILD(tree, pos))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2039 && validate_shift_expr(CHILD(tree, pos + 1)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2040
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2041 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2042
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2043 } /* validate_and_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2044
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2045
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2046 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2047 validate_chain_two_ops(tree, termvalid, op1, op2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2048 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2049 int (*termvalid)();
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2050 int op1;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2051 int op2;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2052 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2053 int pos = 1;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2054 int nch = NCH(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2055 int res = (is_odd(nch)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2056 && (*termvalid)(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2057
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2058 for ( ; res && (pos < nch); pos += 2) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2059 if (TYPE(CHILD(tree, pos)) != op1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2060 res = validate_ntype(CHILD(tree, pos), op2);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2061 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2062 res = (*termvalid)(CHILD(tree, pos + 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2063 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2064 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2065
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2066 } /* validate_chain_two_ops() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2067
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2068
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2069 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2070 validate_shift_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2071 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2072 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2073 return (validate_ntype(tree, shift_expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2074 && validate_chain_two_ops(tree, validate_arith_expr,
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2075 LEFTSHIFT, RIGHTSHIFT));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2076
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2077 } /* validate_shift_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2078
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2079
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2080 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2081 validate_arith_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2082 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2083 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2084 return (validate_ntype(tree, arith_expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2085 && validate_chain_two_ops(tree, validate_term, PLUS, MINUS));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2086
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2087 } /* validate_arith_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2088
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2089
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2090 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2091 validate_term(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2092 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2093 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2094 int pos = 1;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2095 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2096 int res = (validate_ntype(tree, term)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2097 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2098 && validate_factor(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2099
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2100 for ( ; res && (pos < nch); pos += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2101 res = (((TYPE(CHILD(tree, pos)) == STAR)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2102 \|\| (TYPE(CHILD(tree, pos)) == SLASH)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2103 \|\| (TYPE(CHILD(tree, pos)) == PERCENT))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2104 && validate_factor(CHILD(tree, pos + 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2105
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2106 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2107
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2108 } /* validate_term() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2109
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2110
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2111 /* factor:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2112 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2113 * factor: ('+'\|'-'\|'~') factor \| power
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2114 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2115 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2116 validate_factor(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2117 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2118 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2119 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2120 int res = (validate_ntype(tree, factor)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2121 && (((nch == 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2122 && ((TYPE(CHILD(tree, 0)) == PLUS)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2123 \|\| (TYPE(CHILD(tree, 0)) == MINUS)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2124 \|\| (TYPE(CHILD(tree, 0)) == TILDE))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2125 && validate_factor(CHILD(tree, 1)))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2126 \|\| ((nch == 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2127 && validate_power(CHILD(tree, 0)))));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2128 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2129
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2130 } /* validate_factor() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2131
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2132
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2133 /* power:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2134 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2135 * power: atom trailer* ('*' factor)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2136 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2137 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2138 validate_power(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2139 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2140 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2141 int pos = 1;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2142 int nch = NCH(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2143 int res = (validate_ntype(tree, power) && (nch >= 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2144 && validate_atom(CHILD(tree, 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2145
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2146 while (res && (pos < nch) && (TYPE(CHILD(tree, pos)) == trailer))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2147 res = validate_trailer(CHILD(tree, pos++));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2148 if (res && (pos < nch)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2149 if (!is_even(nch - pos)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2150 err_string("Illegal number of nodes for 'power'.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2151 return (0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2152 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2153 for ( ; res && (pos < (nch - 1)); pos += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2154 res = (validate_doublestar(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2155 && validate_factor(CHILD(tree, pos + 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2156 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2157 return (res);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2158
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2159 } /* validate_power() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2160
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2161
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2162 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2163 validate_atom(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2164 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2165 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2166 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2167 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2168 int res = validate_ntype(tree, atom) && (nch >= 1);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2169
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2170 if (res) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2171 switch (TYPE(CHILD(tree, 0))) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2172 case LPAR:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2173 res = ((nch <= 3)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2174 && (validate_rparen(CHILD(tree, nch - 1))));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2175
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2176 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2177 res = validate_testlist(CHILD(tree, 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2178 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2179 case LSQB:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2180 res = ((nch <= 3)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2181 && validate_ntype(CHILD(tree, nch - 1), RSQB));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2182
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2183 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2184 res = validate_testlist(CHILD(tree, 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2185 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2186 case LBRACE:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2187 res = ((nch <= 3)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2188 && validate_ntype(CHILD(tree, nch - 1), RBRACE));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2189
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2190 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2191 res = validate_dictmaker(CHILD(tree, 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2192 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2193 case BACKQUOTE:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2194 res = ((nch == 3)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2195 && validate_testlist(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2196 && validate_ntype(CHILD(tree, 2), BACKQUOTE));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2197 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2198 case NAME:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2199 case NUMBER:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2200 res = (nch == 1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2201 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2202 case STRING:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2203 for (pos = 1; res && (pos < nch); ++pos)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2204 res = validate_ntype(CHILD(tree, pos), STRING);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2205 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2206 default:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2207 res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2208 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2209 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2210 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2211 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2212
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2213 } /* validate_atom() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2214
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2215
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2216 /* funcdef:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2217 * 'def' NAME parameters ':' suite
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2218 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2219 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2220 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2221 validate_funcdef(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2222 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2223 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2224 return (validate_ntype(tree, funcdef)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2225 && validate_numnodes(tree, 5, "funcdef")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2226 && validate_name(CHILD(tree, 0), "def")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2227 && validate_ntype(CHILD(tree, 1), NAME)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2228 && validate_colon(CHILD(tree, 3))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2229 && validate_parameters(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2230 && validate_suite(CHILD(tree, 4)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2231
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2232 } /* validate_funcdef() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2233
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2234
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2235 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2236 validate_lambdef(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2237 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2238 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2239 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2240 int res = (validate_ntype(tree, lambdef)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2241 && ((nch == 3) \|\| (nch == 4))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2242 && validate_name(CHILD(tree, 0), "lambda")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2243 && validate_colon(CHILD(tree, nch - 2))
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2244 && validate_test(CHILD(tree, nch - 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2245
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2246 if (res && (nch == 4))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2247 res = validate_varargslist(CHILD(tree, 1));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2248 else if (!res && !PyErr_Occurred())
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	2249 (void) validate_numnodes(tree, 3, "lambdef");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2250
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2251 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2252
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2253 } /* validate_lambdef() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2254
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2255
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2256 /* arglist:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2257 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2258 * argument (',' argument)* [',']
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2259 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2260 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2261 validate_arglist(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2262 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2263 {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2264 return (validate_repeating_list(tree, arglist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2265 validate_argument, "arglist"));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2266
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2267 } /* validate_arglist() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2268
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2269
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2270
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2271 /* argument:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2272 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2273 * [test '='] test
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2274 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2275 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2276 validate_argument(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2277 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2278 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2279 int nch = NCH(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2280 int res = (validate_ntype(tree, argument)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2281 && ((nch == 1) \|\| (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2282 && validate_test(CHILD(tree, 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2283
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2284 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2285 res = (validate_equal(CHILD(tree, 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2286 && validate_test(CHILD(tree, 2)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2287
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2288 return (res);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2289
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2290 } /* validate_argument() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2291
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2292
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2293
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2294 /* trailer:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2295 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2296 * '(' [arglist] ')' \| '[' subscriptlist ']' \| '.' NAME
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2297 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2298 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2299 validate_trailer(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2300 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2301 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2302 int nch = NCH(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2303 int res = validate_ntype(tree, trailer) && ((nch == 2) \|\| (nch == 3));
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	2304
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2305 if (res) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2306 switch (TYPE(CHILD(tree, 0))) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2307 case LPAR:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2308 res = validate_rparen(CHILD(tree, nch - 1));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2309 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2310 res = validate_arglist(CHILD(tree, 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2311 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2312 case LSQB:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2313 res = (validate_numnodes(tree, 3, "trailer")
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2314 && validate_subscriptlist(CHILD(tree, 1))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2315 && validate_ntype(CHILD(tree, 2), RSQB));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2316 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2317 case DOT:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2318 res = (validate_numnodes(tree, 2, "trailer")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2319 && validate_ntype(CHILD(tree, 1), NAME));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2320 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2321 default:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2322 res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2323 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2324 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2325 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2326 else
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	2327 (void) validate_numnodes(tree, 2, "trailer");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2328
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2329 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2330
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2331 } /* validate_trailer() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2332
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2333
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2334 /* subscriptlist:
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2335 *
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2336 * subscript (',' subscript)* [',']
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2337 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2338 static int
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2339 validate_subscriptlist(tree)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2340 node *tree;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2341 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2342 return (validate_repeating_list(tree, subscriptlist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2343 validate_subscript, "subscriptlist"));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2344
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2345 } /* validate_subscriptlist() */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2346
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2347
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2348 /* subscript:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2349 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2350 * '.' '.' '.' \| test \| [test] ':' [test] [sliceop]
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2351 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2352 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2353 validate_subscript(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2354 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2355 {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2356 int offset = 0;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2357 int nch = NCH(tree);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2358 int res = validate_ntype(tree, subscript) && (nch >= 1) && (nch <= 4);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2359
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2360 if (!res) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2361 if (!PyErr_Occurred())
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2362 err_string("invalid number of arguments for subscript node");
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2363 return (0);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2364 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2365 if (TYPE(CHILD(tree, 0)) == DOT)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2366 /* take care of ('.' '.' '.') possibility */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2367 return (validate_numnodes(tree, 3, "subscript")
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2368 && validate_dot(CHILD(tree, 0))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2369 && validate_dot(CHILD(tree, 1))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2370 && validate_dot(CHILD(tree, 2)));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2371 if (nch == 1) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2372 if (TYPE(CHILD(tree, 0)) == test)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2373 res = validate_test(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2374 else
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2375 res = validate_colon(CHILD(tree, 0));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2376 return (res);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2377 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2378 /* Must be [test] ':' [test] [sliceop],
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2379 * but at least one of the optional components will
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2380 * be present, but we don't know which yet.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2381 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2382 if ((TYPE(CHILD(tree, 0)) != COLON) \|\| (nch == 4)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2383 res = validate_test(CHILD(tree, 0));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2384 offset = 1;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2385 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2386 if (res)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2387 res = validate_colon(CHILD(tree, offset));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2388 if (res) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2389 int rem = nch - ++offset;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2390 if (rem) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2391 if (TYPE(CHILD(tree, offset)) == test) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2392 res = validate_test(CHILD(tree, offset));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2393 ++offset;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2394 --rem;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2395 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2396 if (res && rem)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2397 res = validate_sliceop(CHILD(tree, offset));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2398 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2399 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2400 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2401
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2402 } /* validate_subscript() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2403
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2404
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2405 static int
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2406 validate_sliceop(tree)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2407 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2408 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2409 int nch = NCH(tree);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2410 int res = ((nch == 1) \|\| validate_numnodes(tree, 2, "sliceop"))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2411 && validate_ntype(tree, sliceop);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2412 if (!res && !PyErr_Occurred()) {
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	2413 res = validate_numnodes(tree, 1, "sliceop");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2414 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2415 if (res)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2416 res = validate_colon(CHILD(tree, 0));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2417 if (res && (nch == 2))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2418 res = validate_test(CHILD(tree, 1));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2419
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2420 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2421
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2422 } /* validate_sliceop() */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2423
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2424
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2425 static int
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2426 validate_exprlist(tree)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2427 node *tree;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2428 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2429 return (validate_repeating_list(tree, exprlist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2430 validate_expr, "exprlist"));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2431
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2432 } /* validate_exprlist() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2433
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2434
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2435 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2436 validate_dictmaker(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2437 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2438 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2439 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2440 int res = (validate_ntype(tree, dictmaker)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2441 && (nch >= 3)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2442 && validate_test(CHILD(tree, 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2443 && validate_colon(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2444 && validate_test(CHILD(tree, 2)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2445
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2446 if (res && ((nch % 4) == 0))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2447 res = validate_comma(CHILD(tree, --nch));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2448 else if (res)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2449 res = ((nch % 4) == 3);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2450
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2451 if (res && (nch > 3)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2452 int pos = 3;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2453 /* ( ',' test ':' test )* */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2454 while (res && (pos < nch)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2455 res = (validate_comma(CHILD(tree, pos))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2456 && validate_test(CHILD(tree, pos + 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2457 && validate_colon(CHILD(tree, pos + 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2458 && validate_test(CHILD(tree, pos + 3)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2459 pos += 4;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2460 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2461 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2462 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2463
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2464 } /* validate_dictmaker() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2465
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2466
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2467 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2468 validate_eval_input(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2469 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2470 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2471 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2472 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2473 int res = (validate_ntype(tree, eval_input)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2474 && (nch >= 2)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2475 && validate_testlist(CHILD(tree, 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2476 && validate_ntype(CHILD(tree, nch - 1), ENDMARKER));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2477
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2478 for (pos = 1; res && (pos < (nch - 1)); ++pos)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2479 res = validate_ntype(CHILD(tree, pos), NEWLINE);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2480
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2481 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2482
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2483 } /* validate_eval_input() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2484
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2485
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2486 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2487 validate_node(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2488 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2489 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2490 int nch = 0; /* num. children on current node */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2491 int res = 1; /* result value */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2492 node* next = 0; /* node to process after this one */
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2493
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2494 while (res & (tree != 0)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2495 nch = NCH(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2496 next = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2497 switch (TYPE(tree)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2498 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2499 * Definition nodes.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2500 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2501 case funcdef:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2502 res = validate_funcdef(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2503 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2504 case classdef:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2505 res = validate_class(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2506 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2507 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2508 * "Trivial" parse tree nodes.
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2509 * (Why did I call these trivial?)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2510 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2511 case stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2512 res = validate_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2513 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2514 case small_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2515 /*
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2516 * expr_stmt \| print_stmt \| del_stmt \| pass_stmt \| flow_stmt
5236 b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	2517 * \| import_stmt \| global_stmt \| exec_stmt \| assert_stmt
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2518 */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2519 res = validate_small_stmt(tree);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2520 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2521 case flow_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2522 res = (validate_numnodes(tree, 1, "flow_stmt")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2523 && ((TYPE(CHILD(tree, 0)) == break_stmt)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2524 \|\| (TYPE(CHILD(tree, 0)) == continue_stmt)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2525 \|\| (TYPE(CHILD(tree, 0)) == return_stmt)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2526 \|\| (TYPE(CHILD(tree, 0)) == raise_stmt)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2527 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2528 next = CHILD(tree, 0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2529 else if (nch == 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2530 err_string("Illegal flow_stmt type.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2531 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2532 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2533 * Compound statements.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2534 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2535 case simple_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2536 res = validate_simple_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2537 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2538 case compound_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2539 res = validate_compound_stmt(tree);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2540 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2541 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2542 * Fundemental statements.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2543 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2544 case expr_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2545 res = validate_expr_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2546 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2547 case print_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2548 res = validate_print_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2549 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2550 case del_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2551 res = validate_del_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2552 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2553 case pass_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2554 res = (validate_numnodes(tree, 1, "pass")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2555 && validate_name(CHILD(tree, 0), "pass"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2556 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2557 case break_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2558 res = (validate_numnodes(tree, 1, "break")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2559 && validate_name(CHILD(tree, 0), "break"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2560 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2561 case continue_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2562 res = (validate_numnodes(tree, 1, "continue")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2563 && validate_name(CHILD(tree, 0), "continue"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2564 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2565 case return_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2566 res = validate_return_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2567 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2568 case raise_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2569 res = validate_raise_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2570 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2571 case import_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2572 res = validate_import_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2573 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2574 case global_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2575 res = validate_global_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2576 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2577 case exec_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2578 res = validate_exec_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2579 break;
5236 b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	2580 case assert_stmt:
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	2581 res = validate_assert_stmt(tree);
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	2582 break;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2583 case if_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2584 res = validate_if(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2585 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2586 case while_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2587 res = validate_while(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2588 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2589 case for_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2590 res = validate_for(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2591 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2592 case try_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2593 res = validate_try(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2594 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2595 case suite:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2596 res = validate_suite(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2597 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2598 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2599 * Expression nodes.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2600 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2601 case testlist:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2602 res = validate_testlist(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2603 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2604 case test:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2605 res = validate_test(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2606 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2607 case and_test:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2608 res = validate_and_test(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2609 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2610 case not_test:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2611 res = validate_not_test(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2612 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2613 case comparison:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2614 res = validate_comparison(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2615 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2616 case exprlist:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2617 res = validate_exprlist(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2618 break;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2619 case comp_op:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2620 res = validate_comp_op(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2621 break;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2622 case expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2623 res = validate_expr(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2624 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2625 case xor_expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2626 res = validate_xor_expr(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2627 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2628 case and_expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2629 res = validate_and_expr(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2630 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2631 case shift_expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2632 res = validate_shift_expr(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2633 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2634 case arith_expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2635 res = validate_arith_expr(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2636 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2637 case term:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2638 res = validate_term(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2639 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2640 case factor:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2641 res = validate_factor(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2642 break;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2643 case power:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2644 res = validate_power(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2645 break;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2646 case atom:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2647 res = validate_atom(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2648 break;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2649
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2650 default:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2651 /* Hopefully never reached! */
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2652 err_string("Unrecogniged node type.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2653 res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2654 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2655 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2656 tree = next;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2657 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2658 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2659
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2660 } /* validate_node() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2661
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2662
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2663 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2664 validate_expr_tree(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2665 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2666 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2667 int res = validate_eval_input(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2668
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2669 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2670 err_string("Could not validate expression tuple.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2671
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2672 return (res);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2673
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2674 } /* validate_expr_tree() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2675
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2676
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2677 /* file_input:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2678 * (NEWLINE \| stmt)* ENDMARKER
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2679 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2680 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2681 validate_file_input(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2682 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2683 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2684 int j = 0;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2685 int nch = NCH(tree) - 1;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2686 int res = ((nch >= 0)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2687 && validate_ntype(CHILD(tree, nch), ENDMARKER));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2688
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2689 for ( ; res && (j < nch); ++j) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2690 if (TYPE(CHILD(tree, j)) == stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2691 res = validate_stmt(CHILD(tree, j));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2692 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2693 res = validate_newline(CHILD(tree, j));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2694 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2695 /* This stays in to prevent any internal failues from getting to the
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2696 * user. Hopefully, this won't be needed. If a user reports getting
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2697 * this, we have some debugging to do.
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2698 */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2699 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2700 err_string("VALIDATION FAILURE: report this to the maintainer!.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2701
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2702 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2703
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	2704 } /* validate_file_input() */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2705
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2706
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2707 static PyObject*
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2708 pickle_constructor = NULL;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2709
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2710
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2711 static PyObject*
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2712 parser__pickler(self, args)
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2713 PyObject *self;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2714 PyObject *args;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2715 {
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	2716 NOTE(ARGUNUSED(self))
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2717 PyObject *result = NULL;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2718 PyObject *ast = NULL;
11297 2560236ecedb parser__pickler(): Don't drop the third argument to Fred Drake <fdrake@acm.org> parents: 11266 diff changeset	2719 PyObject *empty_dict = NULL;
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2720
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2721 if (PyArg_ParseTuple(args, "O!:_pickler", &PyAST_Type, &ast)) {
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2722 PyObject *newargs;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2723 PyObject *tuple;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2724
11297 2560236ecedb parser__pickler(): Don't drop the third argument to Fred Drake <fdrake@acm.org> parents: 11266 diff changeset	2725 if ((empty_dict = PyDict_New()) == NULL)
2560236ecedb parser__pickler(): Don't drop the third argument to Fred Drake <fdrake@acm.org> parents: 11266 diff changeset	2726 goto finally;
2560236ecedb parser__pickler(): Don't drop the third argument to Fred Drake <fdrake@acm.org> parents: 11266 diff changeset	2727 if ((newargs = Py_BuildValue("Oi", ast, 1)) == NULL)
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2728 goto finally;
11297 2560236ecedb parser__pickler(): Don't drop the third argument to Fred Drake <fdrake@acm.org> parents: 11266 diff changeset	2729 tuple = parser_ast2tuple((PyAST_Object*)NULL, newargs, empty_dict);
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2730 if (tuple != NULL) {
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2731 result = Py_BuildValue("O(O)", pickle_constructor, tuple);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2732 Py_DECREF(tuple);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2733 }
11297 2560236ecedb parser__pickler(): Don't drop the third argument to Fred Drake <fdrake@acm.org> parents: 11266 diff changeset	2734 Py_DECREF(empty_dict);
8813 dd649837ebd4 parser__pickler(): Use Py_DECREF() when reference is known to be non-NULL. Fred Drake <fdrake@acm.org> parents: 8450 diff changeset	2735 Py_DECREF(newargs);
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2736 }
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2737 finally:
11297 2560236ecedb parser__pickler(): Don't drop the third argument to Fred Drake <fdrake@acm.org> parents: 11266 diff changeset	2738 Py_XDECREF(empty_dict);
2560236ecedb parser__pickler(): Don't drop the third argument to Fred Drake <fdrake@acm.org> parents: 11266 diff changeset	2739
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2740 return (result);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2741
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2742 } /* parser__pickler() */
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2743
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2744
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2745 /* Functions exported by this module. Most of this should probably
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2746 * be converted into an AST object with methods, but that is better
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2747 * done directly in Python, allowing subclasses to be created directly.
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2748 * We'd really have to write a wrapper around it all anyway to allow
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2749 * inheritance.
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2750 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2751 static PyMethodDef parser_functions[] = {
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	2752 {"ast2tuple", (PyCFunction)parser_ast2tuple, PUBLIC_METHOD_TYPE,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2753 "Creates a tuple-tree representation of an AST."},
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	2754 {"ast2list", (PyCFunction)parser_ast2list, PUBLIC_METHOD_TYPE,
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2755 "Creates a list-tree representation of an AST."},
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	2756 {"compileast", (PyCFunction)parser_compileast, PUBLIC_METHOD_TYPE,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2757 "Compiles an AST object into a code object."},
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	2758 {"expr", (PyCFunction)parser_expr, PUBLIC_METHOD_TYPE,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2759 "Creates an AST object from an expression."},
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	2760 {"isexpr", (PyCFunction)parser_isexpr, PUBLIC_METHOD_TYPE,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2761 "Determines if an AST object was created from an expression."},
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	2762 {"issuite", (PyCFunction)parser_issuite, PUBLIC_METHOD_TYPE,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2763 "Determines if an AST object was created from a suite."},
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	2764 {"suite", (PyCFunction)parser_suite, PUBLIC_METHOD_TYPE,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2765 "Creates an AST object from a suite."},
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	2766 {"sequence2ast", (PyCFunction)parser_tuple2ast, PUBLIC_METHOD_TYPE,
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2767 "Creates an AST object from a tree representation."},
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	2768 {"tuple2ast", (PyCFunction)parser_tuple2ast, PUBLIC_METHOD_TYPE,
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2769 "Creates an AST object from a tree representation."},
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2770
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2771 /* private stuff: support pickle module */
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	2772 {"_pickler", (PyCFunction)parser__pickler, METH_VARARGS,
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2773 "Returns the pickle magic to allow ast objects to be pickled."},
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2774
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	2775 {NULL, NULL, 0, NULL}
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2776 };
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2777
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2778
9588 38023a425e48 Add DL_EXPORT() to all modules that could possibly be used Guido van Rossum <guido@python.org> parents: 8813 diff changeset	2779 DL_EXPORT(void)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2780 initparser()
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2781 {
5039 38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	2782 PyObject* module;
38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	2783 PyObject* dict;
38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	2784
38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	2785 PyAST_Type.ob_type = &PyType_Type;
38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	2786 module = Py_InitModule("parser", parser_functions);
38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	2787 dict = PyModule_GetDict(module);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2788
11266 c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	2789 if (parser_error == 0)
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	2790 parser_error = PyErr_NewException("parser.ParserError", NULL, NULL);
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	2791 else
c0b86a44a120 Added keyword parameter support to all public interfaces; keyword Fred Drake <fdrake@acm.org> parents: 10215 diff changeset	2792 puts("parser module initialized more than once!");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2793
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2794 if ((parser_error == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2795 \|\| (PyDict_SetItemString(dict, "ParserError", parser_error) != 0)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2796 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2797 * This is serious.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2798 */
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2799 Py_FatalError("can't define parser.ParserError");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2800 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2801 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2802 * Nice to have, but don't cry if we fail.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2803 */
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2804 Py_INCREF(&PyAST_Type);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2805 PyDict_SetItemString(dict, "ASTType", (PyObject*)&PyAST_Type);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2806
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2807 PyDict_SetItemString(dict, "__copyright__",
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2808 PyString_FromString(parser_copyright_string));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2809 PyDict_SetItemString(dict, "__doc__",
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2810 PyString_FromString(parser_doc_string));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2811 PyDict_SetItemString(dict, "__version__",
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2812 PyString_FromString(parser_version_string));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2813
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2814 /* register to support pickling */
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2815 module = PyImport_ImportModule("copy_reg");
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2816 if (module != NULL) {
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	2817 PyObject func, pickler;
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2818
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2819 func = PyObject_GetAttrString(module, "pickle");
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2820 pickle_constructor = PyDict_GetItemString(dict, "sequence2ast");
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2821 pickler = PyDict_GetItemString(dict, "_pickler");
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2822 Py_XINCREF(pickle_constructor);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2823 if ((func != NULL) && (pickle_constructor != NULL)
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2824 && (pickler != NULL)) {
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2825 PyObject *res;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2826
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2827 res = PyObject_CallFunction(
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2828 func, "OOO", &PyAST_Type, pickler, pickle_constructor);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2829 Py_XDECREF(res);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2830 }
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2831 Py_XDECREF(func);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2832 Py_DECREF(module);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2833 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2834 } /* initparser() */

Mercurial > cpython-lru_cache-weakref

annotate Modules/parsermodule.c @ 12357:5b59ea41db4e legacy-trunk