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

annotate Modules/parsermodule.c @ 8291:f8a389b104f0 legacy-trunk

Changed some comments.... no longer mention FrameMaker.

author	Fred Drake <fdrake@acm.org>
date	Mon, 11 May 1998 16:31:32 +0000
parents	74a910b86b44
children	61912d4ad52f

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
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	212 PyObject_HEAD_INIT(&PyType_Type)
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
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	235 /* Space for future expansion */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	236 0, /* tp_xxx4 */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	237
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	238 /* __doc__ */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	239 "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	240
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	241 }; /* PyAST_Type */
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
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	244 static int
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	245 parser_compare_nodes(left, right)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	246 node *left;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	247 node *right;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	248 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	249 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	250
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	251 if (TYPE(left) < TYPE(right))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	252 return (-1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	253
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	254 if (TYPE(right) < TYPE(left))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	255 return (1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	256
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	257 if (ISTERMINAL(TYPE(left)))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	258 return (strcmp(STR(left), STR(right)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	259
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	260 if (NCH(left) < NCH(right))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	261 return (-1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	262
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	263 if (NCH(right) < NCH(left))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	264 return (1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	265
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	266 for (j = 0; j < NCH(left); ++j) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	267 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	268
8290 74a910b86b44 parser_compare_nodes(): Corrected a minor type error; eliminate one GCC Fred Drake <fdrake@acm.org> parents: 8196 diff changeset	269 if (v != 0)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	270 return (v);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	271 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	272 return (0);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	273
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	274 } /* parser_compare_nodes() */
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
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	277 /* 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	278 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	279 * Comparison function used by the Python operators ==, !=, <, >, <=, >=
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	280 * 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	281 * checks and protection code.
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 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	284 static int
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	285 parser_compare(left, right)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	286 PyAST_Object *left;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	287 PyAST_Object *right;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	288 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	289 if (left == right)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	290 return (0);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	291
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	292 if ((left == 0) \|\| (right == 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	293 return (-1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	294
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	295 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	296
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	297 } /* parser_compare() */
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
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	300 /* parser_newastobject(node* ast)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	301 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	302 * 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	303 * '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	304 * Python code.
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 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	307 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	308 parser_newastobject(ast, type)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	309 node *ast;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	310 int type;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	311 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	312 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	313
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	314 if (o != 0) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	315 o->ast_node = ast;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	316 o->ast_type = type;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	317 }
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	318 else {
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	319 PyNode_Free(ast);
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	320 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	321 return ((PyObject*)o);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	322
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	323 } /* parser_newastobject() */
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
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	326 /* void parser_free(PyAST_Object* ast)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	327 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	328 * 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	329 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	330 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	331 static void
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	332 parser_free(ast)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	333 PyAST_Object *ast;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	334 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	335 PyNode_Free(ast->ast_node);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	336 PyMem_DEL(ast);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	337
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	338 } /* parser_free() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	339
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	340
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	341 /* parser_ast2tuple(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	342 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	343 * 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	344 * 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	345 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	346 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	347 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	348 parser_ast2tuple(self, args)
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	349 PyAST_Object *self;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	350 PyObject *args;
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
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	356 if (self == NULL) {
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	357 ok = PyArg_ParseTuple(
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	358 args, "O!\|O:ast2tuple", &PyAST_Type, &self, &line_option);
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	359 }
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	360 else
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	361 ok = PyArg_ParseTuple(args, "\|O:totuple", &line_option);
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	362 if (ok != 0) {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	363 int lineno = 0;
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	364 if (line_option != NULL) {
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	365 lineno = (PyObject_IsTrue(line_option) != 0) ? 1 : 0;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	366 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	367 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	368 * 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	369 * since it's known to work already.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	370 */
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	371 res = node2tuple(((PyAST_Object*)self)->ast_node,
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	372 PyTuple_New, PyTuple_SetItem, lineno);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	373 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	374 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	375
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	376 } /* parser_ast2tuple() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	377
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	378
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	379 /* parser_ast2tuple(PyObject* self, PyObject* args)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	380 *
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	381 * This provides conversion from a node* to a tuple object that can be
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	382 * 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	383 *
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	384 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	385 static PyObject*
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	386 parser_ast2list(self, args)
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	387 PyAST_Object *self;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	388 PyObject *args;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	389 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	390 PyObject *line_option = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	391 PyObject *res = 0;
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	392 int ok;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	393
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	394 if (self == NULL)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	395 ok = PyArg_ParseTuple(
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	396 args, "O!\|O:ast2list", &PyAST_Type, &self, &line_option);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	397 else
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	398 ok = PyArg_ParseTuple(args, "\|O:tolist", &line_option);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	399 if (ok) {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	400 int lineno = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	401 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	402 lineno = PyObject_IsTrue(line_option) ? 1 : 0;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	403 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	404 /*
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	405 * 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	406 * since it's known to work already.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	407 */
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	408 res = node2tuple(self->ast_node,
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	409 PyList_New, PyList_SetItem, lineno);
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 return (res);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	412
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	413 } /* parser_ast2list() */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	414
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	415
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	416 /* parser_compileast(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	417 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	418 * 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	419 * 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	420 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	421 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	422 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	423 parser_compileast(self, args)
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	424 PyAST_Object *self;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	425 PyObject *args;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	426 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	427 PyObject* res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	428 char* str = "<ast>";
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	429 int ok;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	430
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	431 if (self == NULL)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	432 ok = PyArg_ParseTuple(
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	433 args, "O!\|s:compileast", &PyAST_Type, &self, &str);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	434 else
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	435 ok = PyArg_ParseTuple(args, "\|s:compile", &str);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	436
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	437 if (ok)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	438 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	439
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	440 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	441
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	442 } /* parser_compileast() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	443
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	444
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	445 /* PyObject* parser_isexpr(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	446 * PyObject* parser_issuite(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	447 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	448 * 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	449 * 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	450 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	451 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	452 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	453 parser_isexpr(self, args)
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	454 PyAST_Object *self;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	455 PyObject *args;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	456 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	457 PyObject* res = 0;
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	458 int ok;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	459
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	460 if (self == NULL)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	461 ok = PyArg_ParseTuple(args, "O!:isexpr", &PyAST_Type, &self);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	462 else
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	463 ok = PyArg_ParseTuple(args, ":isexpr");
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	464
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	465 if (ok) {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	466 /* 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	467 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	468 Py_INCREF(res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	469 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	470 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	471
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	472 } /* parser_isexpr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	473
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	474
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	475 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	476 parser_issuite(self, args)
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	477 PyAST_Object *self;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	478 PyObject *args;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	479 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	480 PyObject* res = 0;
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	481 int ok;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	482
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	483 if (self == NULL)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	484 ok = PyArg_ParseTuple(args, "O!:issuite", &PyAST_Type, &self);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	485 else
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	486 ok = PyArg_ParseTuple(args, ":issuite");
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	487
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	488 if (ok) {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	489 /* 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	490 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	491 Py_INCREF(res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	492 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	493 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	494
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	495 } /* parser_issuite() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	496
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	497
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	498 static PyMethodDef
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	499 parser_methods[] = {
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	500 {"compile", (PyCFunction)parser_compileast, METH_VARARGS,
b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	501 "Compile this AST object into a code object."},
b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	502 {"isexpr", (PyCFunction)parser_isexpr, METH_VARARGS,
b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	503 "Determines if this AST object was created from an expression."},
b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	504 {"issuite", (PyCFunction)parser_issuite, METH_VARARGS,
b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	505 "Determines if this AST object was created from a suite."},
b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	506 {"tolist", (PyCFunction)parser_ast2list, METH_VARARGS,
b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	507 "Creates a list-tree representation of this AST."},
b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	508 {"totuple", (PyCFunction)parser_ast2tuple, METH_VARARGS,
b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	509 "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	510
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	511 {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	512 };
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	513
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	514 static PyObject*
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	515 parser_method_list = NULL;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	516
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	517
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	518 static PyObject*
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	519 parser_getattr(self, name)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	520 PyObject *self;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	521 char *name;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	522 {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	523 if (strcmp(name, "__methods__") == 0) {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	524 Py_INCREF(parser_method_list);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	525 return (parser_method_list);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	526 }
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	527 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	528
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	529 } /* parser_getattr() */
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	530
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	531
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	532 /* err_string(char* message)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	533 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	534 * 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	535 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	536 */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	537 static void
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	538 err_string(message)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	539 char *message;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	540 {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	541 PyErr_SetString(parser_error, message);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	542
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	543 } /* err_string() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	544
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	545
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	546 /* 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	547 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	548 * 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	549 * successful, or set an exception if not.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	550 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	551 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	552 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	553 parser_do_parse(args, type)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	554 PyObject *args;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	555 int type;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	556 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	557 char* string = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	558 PyObject* res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	559
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	560 if (PyArg_ParseTuple(args, "s", &string)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	561 node* n = PyParser_SimpleParseString(string,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	562 (type == PyAST_EXPR)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	563 ? eval_input : file_input);
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 if (n != 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	566 res = parser_newastobject(n, type);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	567 else
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	568 err_string("Could not parse string.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	569 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	570 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	571
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	572 } /* parser_do_parse() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	573
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	574
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	575 /* PyObject* parser_expr(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	576 * PyObject* parser_suite(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	577 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	578 * 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	579 * 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	580 * 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	581 *
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 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	584 parser_expr(self, args)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	585 PyObject *self;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	586 PyObject *args;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	587 {
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	588 NOTE(ARGUNUSED(self))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	589 return (parser_do_parse(args, PyAST_EXPR));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	590
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	591 } /* parser_expr() */
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
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	594 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	595 parser_suite(self, args)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	596 PyObject *self;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	597 PyObject *args;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	598 {
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	599 NOTE(ARGUNUSED(self))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	600 return (parser_do_parse(args, PyAST_SUITE));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	601
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	602 } /* parser_suite() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	603
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	604
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	605
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	606 /* 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	607 * 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	608 * 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	609 * 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	610 * 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	611 * 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	612 * phase, returning an exception instead.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	613 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	614 * 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	615 * 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	616 * 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	617 * 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	618 * 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	619 * 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	620 */
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
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	623 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	624 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	625 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	626
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	627
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	628 /* PyObject* parser_tuple2ast(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	629 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	630 * 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	631 * 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	632 * 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	633 * 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	634 * 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	635 * 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	636 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	637 * 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	638 * AST objects.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	639 *
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 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	642 parser_tuple2ast(self, args)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	643 PyObject *self;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	644 PyObject *args;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	645 {
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	646 NOTE(ARGUNUSED(self))
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	647 PyObject *ast = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	648 PyObject *tuple = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	649 PyObject *temp = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	650 int ok;
4600 d36250aefb82 Keep gcc -Wall happy. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	651 int start_sym = 0;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	652
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	653 if (!PyArg_ParseTuple(args, "O:tuple2ast", &tuple))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	654 return (0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	655 if (!PySequence_Check(tuple)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	656 PyErr_SetString(PyExc_ValueError,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	657 "tuple2ast() requires a single sequence argument");
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	658 return (0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	659 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	660 /*
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	661 * 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	662 * object interface (AOI). Unfortunately, the AOI increments reference
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	663 * 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	664 * 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	665 * lists as well as tuples at the very least.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	666 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	667 ok = PyObject_Length(tuple) >= 2;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	668 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	669 temp = PySequence_GetItem(tuple, 0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	670 ok = (temp != NULL) && PyInt_Check(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	671 if (ok)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	672 /* this is used after the initial checks: */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	673 start_sym = PyInt_AsLong(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	674 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	675 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	676 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	677 temp = PySequence_GetItem(tuple, 1);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	678 ok = (temp != NULL) && PySequence_Check(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	679 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	680 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	681 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	682 temp = PySequence_GetItem(tuple, 1);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	683 ok = (temp != NULL) && PyObject_Length(temp) >= 2;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	684 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	685 PyObject *temp2 = PySequence_GetItem(temp, 0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	686 if (temp2 != NULL) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	687 ok = PyInt_Check(temp2);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	688 Py_DECREF(temp2);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	689 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	690 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	691 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	692 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	693 /* 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	694 if (!ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	695 err_string("malformed sequence for tuple2ast()");
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	696 return (0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	697 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	698 /*
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	699 * 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	700 * before we jump the gun.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	701 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	702 if (start_sym == eval_input) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	703 /* Might be an eval form. */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	704 node* expression = build_node_tree(tuple);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	705
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	706 if ((expression != 0) && validate_expr_tree(expression))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	707 ast = parser_newastobject(expression, PyAST_EXPR);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	708 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	709 else if (start_sym == file_input) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	710 /* This looks like an exec form so far. */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	711 node* suite_tree = build_node_tree(tuple);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	712
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	713 if ((suite_tree != 0) && validate_file_input(suite_tree))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	714 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	715 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	716 else
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	717 /* 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	718 * will be if I find a use for them.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	719 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	720 err_string("Fragmentary parse trees not supported.");
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 /* 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	723 * 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	724 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	725 if ((ast == 0) && !PyErr_Occurred())
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	726 err_string("Unspecified ast error occurred.");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	727
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	728 return (ast);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	729
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	730 } /* parser_tuple2ast() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	731
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	732
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	733 /* int check_terminal_tuple()
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	734 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	735 * 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	736 * 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	737 * 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	738 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	739 * 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	740 * 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	741 * 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	742 * 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	743 * 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	744 * 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	745 * by the validate_*() functions which operate on the internal
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	746 * representation.
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	747 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	748 static int
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	749 check_terminal_tuple(elem)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	750 PyObject *elem;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	751 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	752 int len = PyObject_Length(elem);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	753 int res = 1;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	754 char* str = "Illegal terminal symbol; bad node length.";
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	755
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	756 if ((len == 2) \|\| (len == 3)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	757 PyObject *temp = PySequence_GetItem(elem, 1);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	758 res = PyString_Check(temp);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	759 str = "Illegal terminal symbol; expected a string.";
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	760 if (res && (len == 3)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	761 PyObject* third = PySequence_GetItem(elem, 2);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	762 res = PyInt_Check(third);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	763 str = "Invalid third element of terminal node.";
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	764 Py_XDECREF(third);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	765 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	766 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	767 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	768 else {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	769 res = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	770 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	771 if (!res) {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	772 elem = Py_BuildValue("(os)", elem, str);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	773 PyErr_SetObject(parser_error, elem);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	774 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	775 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	776
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	777 } /* check_terminal_tuple() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	778
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	779
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	780 /* node* build_node_children()
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	781 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	782 * 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	783 * 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	784 * 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	785 * and no memory will have been deallocated.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	786 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	787 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	788 static node*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	789 build_node_children(tuple, root, line_num)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	790 PyObject *tuple;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	791 node *root;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	792 int *line_num;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	793 {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	794 int len = PyObject_Length(tuple);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	795 int i;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	796
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	797 for (i = 1; i < len; ++i) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	798 /* 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	799 PyObject* elem = PySequence_GetItem(tuple, i);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	800 int ok = elem != NULL;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	801 long type = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	802 char *strn = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	803
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	804 if (ok)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	805 ok = PySequence_Check(elem);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	806 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	807 PyObject *temp = PySequence_GetItem(elem, 0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	808 if (temp == NULL)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	809 ok = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	810 else {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	811 ok = PyInt_Check(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	812 if (ok)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	813 type = PyInt_AsLong(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	814 Py_DECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	815 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	816 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	817 if (!ok) {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	818 PyErr_SetObject(parser_error,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	819 Py_BuildValue("(os)", elem,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	820 "Illegal node construct."));
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	821 Py_XDECREF(elem);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	822 return (0);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	823 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	824 if (ISTERMINAL(type)) {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	825 if (check_terminal_tuple(elem)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	826 PyObject *temp = PySequence_GetItem(elem, 1);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	827
6469 dca9bdf5ea08 Remove requirement for strdup() since it causes so many troubles for too many Fred Drake <fdrake@acm.org> parents: 6465 diff changeset	828 /* 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	829 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	830 if (strn != NULL)
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	831 (void) strcpy(strn, PyString_AS_STRING(temp));
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	832 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	833
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	834 if (PyObject_Length(elem) == 3) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	835 PyObject* temp = PySequence_GetItem(elem, 2);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	836 *line_num = PyInt_AsLong(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	837 Py_DECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	838 }
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 else {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	841 Py_XDECREF(elem);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	842 return (0);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	843 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	844 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	845 else if (!ISNONTERMINAL(type)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	846 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	847 * 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	848 * Throw an exception.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	849 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	850 PyErr_SetObject(parser_error,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	851 Py_BuildValue("(os)", elem,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	852 "Unknown node type."));
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	853 Py_XDECREF(elem);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	854 return (0);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	855 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	856 PyNode_AddChild(root, type, strn, *line_num);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	857
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	858 if (ISNONTERMINAL(type)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	859 node* new_child = CHILD(root, i - 1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	860
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	861 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	862 Py_XDECREF(elem);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	863 return (0);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	864 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	865 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	866 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	867 ++(line_num); / line number after the newline! */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	868 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	869 Py_XDECREF(elem);
3200 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 return (root);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	872
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	873 } /* build_node_children() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	874
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	875
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	876 static node*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	877 build_node_tree(tuple)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	878 PyObject *tuple;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	879 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	880 node* res = 0;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	881 PyObject *temp = PySequence_GetItem(tuple, 0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	882 long num = -1;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	883
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	884 if (temp != NULL)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	885 num = PyInt_AsLong(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	886 Py_XDECREF(temp);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	887 if (ISTERMINAL(num)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	888 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	889 * 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	890 * 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	891 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	892 tuple = Py_BuildValue("(os)", tuple,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	893 "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	894 PyErr_SetObject(parser_error, tuple);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	895 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	896 else if (ISNONTERMINAL(num)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	897 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	898 * 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	899 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	900 int line_num = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	901
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	902 res = PyNode_New(num);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	903 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	904 PyNode_Free(res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	905 res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	906 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	907 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	908 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	909 /* 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	910 * NONTERMINAL, we can't use it.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	911 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	912 PyErr_SetObject(parser_error,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	913 Py_BuildValue("(os)", tuple,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	914 "Illegal component tuple."));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	915
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	916 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	917
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	918 } /* build_node_tree() */
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
4092 8592fa4a119b Support for old CPP Guido van Rossum <guido@python.org> parents: 4084 diff changeset	921 #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	922 #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	923 #else
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	924 #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	925 #endif
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	926
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	927
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	928 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	929 * Validation routines used within the validation section:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	930 */
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	931 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	932 int type, char *string));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	933
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	934 #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	935 #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	936 #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	937 #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	938 #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	939 #define validate_equal(ch) validate_terminal(ch, EQUAL, "=")
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	940 #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	941 #define validate_lparen(ch) validate_terminal(ch, LPAR, "(")
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	942 #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	943 #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	944 #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	945 #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	946 #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	947 #define validate_doublestar(ch) validate_terminal(ch, DOUBLESTAR, "**")
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	948 #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	949 #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	950
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	951 VALIDATER(node); VALIDATER(small_stmt);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	952 VALIDATER(class); VALIDATER(node);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	953 VALIDATER(parameters); VALIDATER(suite);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	954 VALIDATER(testlist); VALIDATER(varargslist);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	955 VALIDATER(fpdef); VALIDATER(fplist);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	956 VALIDATER(stmt); VALIDATER(simple_stmt);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	957 VALIDATER(expr_stmt); VALIDATER(power);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	958 VALIDATER(print_stmt); VALIDATER(del_stmt);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	959 VALIDATER(return_stmt);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	960 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	961 VALIDATER(global_stmt);
5236 b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	962 VALIDATER(assert_stmt);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	963 VALIDATER(exec_stmt); VALIDATER(compound_stmt);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	964 VALIDATER(while); VALIDATER(for);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	965 VALIDATER(try); VALIDATER(except_clause);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	966 VALIDATER(test); VALIDATER(and_test);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	967 VALIDATER(not_test); VALIDATER(comparison);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	968 VALIDATER(comp_op); VALIDATER(expr);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	969 VALIDATER(xor_expr); VALIDATER(and_expr);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	970 VALIDATER(shift_expr); VALIDATER(arith_expr);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	971 VALIDATER(term); VALIDATER(factor);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	972 VALIDATER(atom); VALIDATER(lambdef);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	973 VALIDATER(trailer); VALIDATER(subscript);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	974 VALIDATER(subscriptlist); VALIDATER(sliceop);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	975 VALIDATER(exprlist); VALIDATER(dictmaker);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	976 VALIDATER(arglist); VALIDATER(argument);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	977
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	978
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	979 #define is_even(n) (((n) & 1) == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	980 #define is_odd(n) (((n) & 1) == 1)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	981
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	982
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	983 static int
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	984 validate_ntype(n, t)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	985 node *n;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	986 int t;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	987 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	988 int res = (TYPE(n) == t);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	989
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	990 if (!res) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	991 char buffer[128];
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	992 (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	993 err_string(buffer);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	994 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	995 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	996
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	997 } /* validate_ntype() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	998
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	999
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1000 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1001 validate_numnodes(n, num, name)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1002 node *n;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1003 int num;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1004 const char *const name;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1005 {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1006 if (NCH(n) != num) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1007 char buff[60];
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1008 (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	1009 err_string(buff);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1010 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1011 return (NCH(n) == num);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1012
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1013 } /* validate_numnodes() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1014
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1015
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1016 static int
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1017 validate_terminal(terminal, type, string)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1018 node *terminal;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1019 int type;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1020 char *string;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1021 {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1022 int res = (validate_ntype(terminal, type)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1023 && ((string == 0) \|\| (strcmp(string, STR(terminal)) == 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1024
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1025 if (!res && !PyErr_Occurred()) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1026 char buffer[60];
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1027 (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	1028 err_string(buffer);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1029 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1030 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1031
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1032 } /* validate_terminal() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1033
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1034
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1035 /* X (',' X) [',']
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1036 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1037 static int
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1038 validate_repeating_list(tree, ntype, vfunc, name)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1039 node *tree;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1040 int ntype;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1041 int (*vfunc)();
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1042 const char *const name;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1043 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1044 int nch = NCH(tree);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1045 int res = (nch && validate_ntype(tree, ntype)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1046 && vfunc(CHILD(tree, 0)));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1047
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1048 if (!res && !PyErr_Occurred())
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1049 (void) validate_numnodes(tree, 1, name);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1050 else {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1051 if (is_even(nch))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1052 res = validate_comma(CHILD(tree, --nch));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1053 if (res && nch > 1) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1054 int pos = 1;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1055 for ( ; res && pos < nch; pos += 2)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1056 res = (validate_comma(CHILD(tree, pos))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1057 && vfunc(CHILD(tree, pos + 1)));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1058 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1059 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1060 return (res);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1061
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1062 } /* validate_repeating_list() */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1063
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1064
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1065 /* VALIDATE(class)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1066 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1067 * classdef:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1068 * 'class' NAME ['(' testlist ')'] ':' suite
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1069 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1070 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1071 validate_class(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1072 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1073 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1074 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1075 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	1076
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1077 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1078 res = (validate_name(CHILD(tree, 0), "class")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1079 && validate_ntype(CHILD(tree, 1), NAME)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1080 && validate_colon(CHILD(tree, nch - 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1081 && validate_suite(CHILD(tree, nch - 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1082 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1083 else
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1084 (void) validate_numnodes(tree, 4, "class");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1085 if (res && (nch == 7)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1086 res = (validate_lparen(CHILD(tree, 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1087 && validate_testlist(CHILD(tree, 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1088 && validate_rparen(CHILD(tree, 4)));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1089 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1090 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1091
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1092 } /* validate_class() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1093
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1094
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1095 /* if_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1096 * 'if' test ':' suite ('elif' test ':' suite)* ['else' ':' suite]
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1097 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1098 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1099 validate_if(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1100 node *tree;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1101 {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1102 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1103 int res = (validate_ntype(tree, if_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1104 && (nch >= 4)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1105 && validate_name(CHILD(tree, 0), "if")
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1106 && validate_test(CHILD(tree, 1))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1107 && validate_colon(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1108 && validate_suite(CHILD(tree, 3)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1109
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1110 if (res && ((nch % 4) == 3)) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1111 /* ... 'else' ':' suite */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1112 res = (validate_name(CHILD(tree, nch - 3), "else")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1113 && validate_colon(CHILD(tree, nch - 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1114 && validate_suite(CHILD(tree, nch - 1)));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1115 nch -= 3;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1116 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1117 else if (!res && !PyErr_Occurred())
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1118 (void) validate_numnodes(tree, 4, "if");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1119 if ((nch % 4) != 0)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1120 /* Will catch the case for nch < 4 */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1121 res = validate_numnodes(tree, 0, "if");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1122 else if (res && (nch > 4)) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1123 /* ... ('elif' test ':' suite)+ ... */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1124 int j = 4;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1125 while ((j < nch) && res) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1126 res = (validate_name(CHILD(tree, j), "elif")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1127 && validate_colon(CHILD(tree, j + 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1128 && validate_test(CHILD(tree, j + 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1129 && validate_suite(CHILD(tree, j + 3)));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1130 j += 4;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1131 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1132 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1133 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1134
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1135 } /* validate_if() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1136
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1137
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1138 /* parameters:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1139 * '(' [varargslist] ')'
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1140 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1141 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1142 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1143 validate_parameters(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1144 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1145 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1146 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1147 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	1148
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1149 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1150 res = (validate_lparen(CHILD(tree, 0))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1151 && validate_rparen(CHILD(tree, nch - 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1152 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1153 res = validate_varargslist(CHILD(tree, 1));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1154 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1155 else
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1156 (void) validate_numnodes(tree, 2, "parameters");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1157
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1158 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1159
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1160 } /* validate_parameters() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1161
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1162
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1163 /* VALIDATE(suite)
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 * suite:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1166 * simple_stmt
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1167 * \| NEWLINE INDENT stmt+ DEDENT
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1168 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1169 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1170 validate_suite(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1171 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1172 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1173 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1174 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	1175
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1176 if (res && (nch == 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1177 res = validate_simple_stmt(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1178 else if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1179 /* NEWLINE INDENT stmt+ DEDENT */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1180 res = (validate_newline(CHILD(tree, 0))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1181 && validate_indent(CHILD(tree, 1))
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1182 && validate_stmt(CHILD(tree, 2))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1183 && validate_dedent(CHILD(tree, nch - 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1184
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1185 if (res && (nch > 4)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1186 int i = 3;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1187 --nch; /* forget the DEDENT */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1188 for ( ; res && (i < nch); ++i)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1189 res = validate_stmt(CHILD(tree, i));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1190 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1191 else if (nch < 4)
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1192 res = validate_numnodes(tree, 4, "suite");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1193 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1194 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1195
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1196 } /* validate_suite() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1197
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1198
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1199 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1200 validate_testlist(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1201 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1202 {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1203 return (validate_repeating_list(tree, testlist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1204 validate_test, "testlist"));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1205
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1206 } /* validate_testlist() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1207
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 /* VALIDATE(varargslist)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1210 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1211 * varargslist:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1212 * (fpdef ['=' test] ',')* ('' NAME [',' '' '' NAME] \| '' '*' NAME)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1213 * \| fpdef ['=' test] (',' fpdef ['=' test])* [',']
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1214 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1215 * (fpdef ['=' test] ',')*
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1216 * ('' NAME [',' (''\|'' '*') NAME]
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1217 * \| ('*'\|'' '*') NAME)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1218 * \| fpdef ['=' test] (',' fpdef ['=' test])* [',']
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1219 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1220 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1221 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1222 validate_varargslist(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1223 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1224 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1225 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1226 int res = validate_ntype(tree, varargslist) && (nch != 0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1227
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1228 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	1229 /* (fpdef ['=' test] ',')*
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1230 * ('' NAME [',' '' '' NAME] \| '' '*' NAME)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1231 */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1232 int pos = 0;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1233 int remaining = nch;
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 while (res && (TYPE(CHILD(tree, pos)) == fpdef)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1236 res = validate_fpdef(CHILD(tree, pos));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1237 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1238 if (TYPE(CHILD(tree, pos + 1)) == EQUAL) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1239 res = validate_test(CHILD(tree, pos + 2));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1240 pos += 2;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1241 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1242 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	1243 pos += 2;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1244 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1245 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1246 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1247 remaining = nch - pos;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1248 res = ((remaining == 2) \|\| (remaining == 3)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1249 \|\| (remaining == 5) \|\| (remaining == 6));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1250 if (!res)
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1251 (void) validate_numnodes(tree, 2, "varargslist");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1252 else if (TYPE(CHILD(tree, pos)) == DOUBLESTAR)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1253 return ((remaining == 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1254 && validate_ntype(CHILD(tree, pos+1), NAME));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1255 else {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1256 res = validate_star(CHILD(tree, pos++));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1257 --remaining;
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 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1260 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1261 if (remaining == 2) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1262 res = (validate_star(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1263 && validate_ntype(CHILD(tree, pos + 1), NAME));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1264 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1265 else {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1266 res = validate_ntype(CHILD(tree, pos++), NAME);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1267 if (res && (remaining >= 4)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1268 res = validate_comma(CHILD(tree, pos));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1269 if (--remaining == 3)
4287 f2f5cd7cb5b5 (parsermodule.c): Fixed sloppy typo: '==' -> '=' Fred Drake <fdrake@acm.org> parents: 4099 diff changeset	1270 res = (validate_star(CHILD(tree, pos + 1))
f2f5cd7cb5b5 (parsermodule.c): Fixed sloppy typo: '==' -> '=' Fred Drake <fdrake@acm.org> parents: 4099 diff changeset	1271 && validate_star(CHILD(tree, pos + 2)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1272 else
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1273 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	1274 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1275 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1276 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1277 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1278 err_string("Incorrect validation of variable arguments list.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1279 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1280 else if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1281 /* fpdef ['=' test] (',' fpdef ['=' test])* [','] */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1282 if (TYPE(CHILD(tree, nch - 1)) == COMMA)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1283 --nch;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1284
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1285 /* fpdef ['=' test] (',' fpdef ['=' test])* */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1286 res = (is_odd(nch)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1287 && validate_fpdef(CHILD(tree, 0)));
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 if (res && (nch > 1)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1290 int pos = 1;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1291 if (TYPE(CHILD(tree, 1)) == EQUAL) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1292 res = validate_test(CHILD(tree, 2));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1293 pos += 2;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1294 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1295 /* ... (',' fpdef ['=' test])* */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1296 for ( ; res && (pos < nch); pos += 2) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1297 /* ',' fpdef */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1298 res = (validate_comma(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1299 && validate_fpdef(CHILD(tree, pos + 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1300 if (res
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1301 && ((nch - pos) > 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1302 && (TYPE(CHILD(tree, pos + 2)) == EQUAL)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1303 /* ['=' test] */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1304 res = validate_test(CHILD(tree, pos + 3));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1305 pos += 2;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1306 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1307 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1308 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1309 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1310 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1311 err_string("Improperly formed argument list.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1312
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1313 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1314
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1315 } /* validate_varargslist() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1316
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1317
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1318 /* VALIDATE(fpdef)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1319 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1320 * fpdef:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1321 * NAME
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1322 * \| '(' fplist ')'
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1323 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1324 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1325 validate_fpdef(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1326 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1327 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1328 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1329 int res = validate_ntype(tree, fpdef);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1330
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1331 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1332 if (nch == 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1333 res = validate_ntype(CHILD(tree, 0), NAME);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1334 else if (nch == 3)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1335 res = (validate_lparen(CHILD(tree, 0))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1336 && validate_fplist(CHILD(tree, 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1337 && validate_rparen(CHILD(tree, 2)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1338 else
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1339 res = validate_numnodes(tree, 1, "fpdef");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1340 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1341 return (res);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1342
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1343 } /* validate_fpdef() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1344
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1345
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1346 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1347 validate_fplist(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1348 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1349 {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1350 return (validate_repeating_list(tree, fplist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1351 validate_fpdef, "fplist"));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1352
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1353 } /* validate_fplist() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1354
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1355
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1356 /* simple_stmt \| compound_stmt
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1357 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1358 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1359 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1360 validate_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1361 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1362 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1363 int res = (validate_ntype(tree, stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1364 && validate_numnodes(tree, 1, "stmt"));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1365
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1366 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1367 tree = CHILD(tree, 0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1368
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1369 if (TYPE(tree) == simple_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1370 res = validate_simple_stmt(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1371 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1372 res = validate_compound_stmt(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1373 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1374 return (res);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1375
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1376 } /* validate_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1377
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1378
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1379 /* small_stmt (';' small_stmt)* [';'] NEWLINE
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1380 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1381 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1382 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1383 validate_simple_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1384 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1385 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1386 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1387 int res = (validate_ntype(tree, simple_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1388 && (nch >= 2)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1389 && validate_small_stmt(CHILD(tree, 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1390 && validate_newline(CHILD(tree, nch - 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1391
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1392 if (nch < 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1393 res = validate_numnodes(tree, 2, "simple_stmt");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1394 --nch; /* forget the NEWLINE */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1395 if (res && is_even(nch))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1396 res = validate_semi(CHILD(tree, --nch));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1397 if (res && (nch > 2)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1398 int i;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1399
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1400 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	1401 res = (validate_semi(CHILD(tree, i))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1402 && validate_small_stmt(CHILD(tree, i + 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1403 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1404 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1405
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1406 } /* validate_simple_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1407
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1408
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1409 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1410 validate_small_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1411 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1412 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1413 int nch = NCH(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1414 int res = (validate_numnodes(tree, 1, "small_stmt")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1415 && ((TYPE(CHILD(tree, 0)) == expr_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1416 \|\| (TYPE(CHILD(tree, 0)) == print_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1417 \|\| (TYPE(CHILD(tree, 0)) == del_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1418 \|\| (TYPE(CHILD(tree, 0)) == pass_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1419 \|\| (TYPE(CHILD(tree, 0)) == flow_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1420 \|\| (TYPE(CHILD(tree, 0)) == import_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1421 \|\| (TYPE(CHILD(tree, 0)) == global_stmt)
5236 b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1422 \|\| (TYPE(CHILD(tree, 0)) == assert_stmt)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1423 \|\| (TYPE(CHILD(tree, 0)) == exec_stmt)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1424
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1425 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1426 res = validate_node(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1427 else if (nch == 1) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1428 char buffer[60];
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1429 (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	1430 TYPE(CHILD(tree, 0)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1431 err_string(buffer);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1432 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1433 return (res);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1434
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1435 } /* validate_small_stmt */
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
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1438 /* compound_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1439 * 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	1440 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1441 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1442 validate_compound_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1443 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1444 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1445 int res = (validate_ntype(tree, compound_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1446 && validate_numnodes(tree, 1, "compound_stmt"));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1447
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1448 if (!res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1449 return (0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1450
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1451 tree = CHILD(tree, 0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1452 res = ((TYPE(tree) == if_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1453 \|\| (TYPE(tree) == while_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1454 \|\| (TYPE(tree) == for_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1455 \|\| (TYPE(tree) == try_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1456 \|\| (TYPE(tree) == funcdef)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1457 \|\| (TYPE(tree) == classdef));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1458 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1459 res = validate_node(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1460 else {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1461 char buffer[60];
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1462 (void) sprintf(buffer, "Illegal compound statement type: %d.",
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1463 TYPE(tree));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1464 err_string(buffer);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1465 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1466 return (res);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1467
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1468 } /* validate_compound_stmt() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1469
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1470
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1471 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1472 validate_expr_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1473 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1474 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1475 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1476 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1477 int res = (validate_ntype(tree, expr_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1478 && is_odd(nch)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1479 && validate_testlist(CHILD(tree, 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1480
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1481 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	1482 res = (validate_equal(CHILD(tree, j))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1483 && validate_testlist(CHILD(tree, j + 1)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1484
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1485 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1486
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1487 } /* validate_expr_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1488
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1489
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1490 /* print_stmt:
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 * 'print' (test ',')* [test]
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_print_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, print_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1502 && (nch != 0)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1503 && validate_name(CHILD(tree, 0), "print"));
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 if (res && is_even(nch)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1506 res = validate_test(CHILD(tree, nch - 1));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1507 --nch;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1508 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1509 else if (!res && !PyErr_Occurred())
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1510 (void) validate_numnodes(tree, 1, "print_stmt");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1511 for (j = 1; res && (j < nch); j += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1512 res = (validate_test(CHILD(tree, j))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1513 && validate_ntype(CHILD(tree, j + 1), COMMA));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1514
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1515 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1516
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1517 } /* validate_print_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1518
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1519
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1520 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1521 validate_del_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1522 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1523 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1524 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	1525 && validate_name(CHILD(tree, 0), "del")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1526 && validate_exprlist(CHILD(tree, 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1527
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1528 } /* validate_del_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1529
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1530
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1531 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1532 validate_return_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1533 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1534 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1535 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1536 int res = (validate_ntype(tree, return_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1537 && ((nch == 1) \|\| (nch == 2))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1538 && validate_name(CHILD(tree, 0), "return"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1539
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1540 if (res && (nch == 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1541 res = validate_testlist(CHILD(tree, 1));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1542
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1543 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1544
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1545 } /* validate_return_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1546
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1547
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1548 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1549 validate_raise_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1550 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1551 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1552 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1553 int res = (validate_ntype(tree, raise_stmt)
7951 f42b757755eb Support raise with no parameters. Fred Drake <fdrake@acm.org> parents: 6469 diff changeset	1554 && ((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	1555
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1556 if (res) {
7951 f42b757755eb Support raise with no parameters. Fred Drake <fdrake@acm.org> parents: 6469 diff changeset	1557 res = validate_name(CHILD(tree, 0), "raise");
f42b757755eb Support raise with no parameters. Fred Drake <fdrake@acm.org> parents: 6469 diff changeset	1558 if (res && (nch >= 2))
f42b757755eb Support raise with no parameters. Fred Drake <fdrake@acm.org> parents: 6469 diff changeset	1559 res = validate_test(CHILD(tree, 1));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1560 if (res && nch > 2) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1561 res = (validate_comma(CHILD(tree, 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1562 && validate_test(CHILD(tree, 3)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1563 if (res && (nch > 4))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1564 res = (validate_comma(CHILD(tree, 4))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1565 && validate_test(CHILD(tree, 5)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1566 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1567 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1568 else
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1569 (void) validate_numnodes(tree, 2, "raise");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1570 if (res && (nch == 4))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1571 res = (validate_comma(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1572 && validate_test(CHILD(tree, 3)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1573
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1574 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1575
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1576 } /* validate_raise_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1577
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1578
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1579 /* import_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1580 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1581 * 'import' dotted_name (',' dotted_name)*
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1582 * \| 'from' dotted_name 'import' ('' \| NAME (',' NAME))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1583 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1584 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1585 validate_import_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1586 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1587 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1588 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1589 int res = (validate_ntype(tree, import_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1590 && (nch >= 2) && is_even(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1591 && validate_ntype(CHILD(tree, 0), NAME)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1592 && 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	1593
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1594 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	1595 int j;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1596
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1597 for (j = 2; res && (j < nch); j += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1598 res = (validate_comma(CHILD(tree, j))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1599 && 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	1600 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1601 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	1602 res = ((nch >= 4) && is_even(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1603 && validate_name(CHILD(tree, 2), "import"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1604 if (nch == 4) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1605 res = ((TYPE(CHILD(tree, 3)) == NAME)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1606 \|\| (TYPE(CHILD(tree, 3)) == STAR));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1607 if (!res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1608 err_string("Illegal import statement.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1609 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1610 else {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1611 /* 'from' NAME 'import' NAME (',' NAME)+ */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1612 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1613 res = validate_ntype(CHILD(tree, 3), NAME);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1614 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	1615 res = (validate_comma(CHILD(tree, j))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1616 && validate_ntype(CHILD(tree, j + 1), NAME));
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 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1619 else
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1620 res = 0;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1621
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1622 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1623
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1624 } /* validate_import_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1625
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1626
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1627 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1628 validate_global_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1629 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1630 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1631 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1632 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1633 int res = (validate_ntype(tree, global_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1634 && is_even(nch) && (nch >= 2));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1635
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1636 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1637 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	1638 && validate_ntype(CHILD(tree, 1), NAME));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1639 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	1640 res = (validate_comma(CHILD(tree, j))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1641 && validate_ntype(CHILD(tree, j + 1), NAME));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1642
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1643 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1644
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1645 } /* validate_global_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1646
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1647
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1648 /* exec_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1649 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1650 * 'exec' expr ['in' test [',' test]]
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1651 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1652 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1653 validate_exec_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1654 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1655 {
3200 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, exec_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1658 && ((nch == 2) \|\| (nch == 4) \|\| (nch == 6))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1659 && validate_name(CHILD(tree, 0), "exec")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1660 && validate_expr(CHILD(tree, 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1661
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1662 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1663 err_string("Illegal exec statement.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1664 if (res && (nch > 2))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1665 res = (validate_name(CHILD(tree, 2), "in")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1666 && validate_test(CHILD(tree, 3)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1667 if (res && (nch == 6))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1668 res = (validate_comma(CHILD(tree, 4))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1669 && validate_test(CHILD(tree, 5)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1670
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1671 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1672
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1673 } /* validate_exec_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1674
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1675
5236 b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1676 /* assert_stmt:
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1677 *
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1678 * 'assert' test [',' test]
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1679 */
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1680 static int
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1681 validate_assert_stmt(tree)
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1682 node *tree;
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1683 {
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1684 int nch = NCH(tree);
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1685 int res = (validate_ntype(tree, assert_stmt)
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1686 && ((nch == 2) \|\| (nch == 4))
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1687 && (validate_name(CHILD(tree, 0), "__assert__") \|\|
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1688 validate_name(CHILD(tree, 0), "assert"))
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1689 && validate_test(CHILD(tree, 1)));
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1690
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1691 if (!res && !PyErr_Occurred())
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1692 err_string("Illegal assert statement.");
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1693 if (res && (nch > 2))
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1694 res = (validate_comma(CHILD(tree, 2))
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1695 && validate_test(CHILD(tree, 3)));
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1696
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1697 return (res);
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1698
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1699 } /* validate_assert_stmt() */
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1700
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1701
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1702 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1703 validate_while(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1704 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1705 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1706 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1707 int res = (validate_ntype(tree, while_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1708 && ((nch == 4) \|\| (nch == 7))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1709 && validate_name(CHILD(tree, 0), "while")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1710 && validate_test(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1711 && validate_colon(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1712 && validate_suite(CHILD(tree, 3)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1713
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1714 if (res && (nch == 7))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1715 res = (validate_name(CHILD(tree, 4), "else")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1716 && validate_colon(CHILD(tree, 5))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1717 && validate_suite(CHILD(tree, 6)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1718
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1719 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1720
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1721 } /* validate_while() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1722
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1723
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1724 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1725 validate_for(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1726 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1727 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1728 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1729 int res = (validate_ntype(tree, for_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1730 && ((nch == 6) \|\| (nch == 9))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1731 && validate_name(CHILD(tree, 0), "for")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1732 && validate_exprlist(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1733 && validate_name(CHILD(tree, 2), "in")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1734 && validate_testlist(CHILD(tree, 3))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1735 && validate_colon(CHILD(tree, 4))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1736 && validate_suite(CHILD(tree, 5)));
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 == 9))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1739 res = (validate_name(CHILD(tree, 6), "else")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1740 && validate_colon(CHILD(tree, 7))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1741 && validate_suite(CHILD(tree, 8)));
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_for() */
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
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1748 /* try_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1749 * 'try' ':' suite (except_clause ':' suite)+ ['else' ':' suite]
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1750 * \| 'try' ':' suite 'finally' ':' suite
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1751 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1752 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1753 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1754 validate_try(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1755 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1756 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1757 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1758 int pos = 3;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1759 int res = (validate_ntype(tree, try_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1760 && (nch >= 6) && ((nch % 3) == 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1761
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1762 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1763 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	1764 && validate_colon(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1765 && validate_suite(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1766 && validate_colon(CHILD(tree, nch - 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1767 && validate_suite(CHILD(tree, nch - 1)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1768 else {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1769 const char* name = "execpt";
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1770 char buffer[60];
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1771 if (TYPE(CHILD(tree, nch - 3)) != except_clause)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1772 name = STR(CHILD(tree, nch - 3));
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1773 (void) sprintf(buffer,
885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1774 "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	1775 err_string(buffer);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1776 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1777 /* Skip past except_clause sections: */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1778 while (res && (TYPE(CHILD(tree, pos)) == except_clause)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1779 res = (validate_except_clause(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1780 && validate_colon(CHILD(tree, pos + 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1781 && validate_suite(CHILD(tree, pos + 2)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1782 pos += 3;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1783 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1784 if (res && (pos < nch)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1785 res = validate_ntype(CHILD(tree, pos), NAME);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1786 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	1787 res = (validate_numnodes(tree, 6, "try/finally")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1788 && validate_colon(CHILD(tree, 4))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1789 && validate_suite(CHILD(tree, 5)));
7982 a909a2869ac5 Make new gcc -Wall happy Guido van Rossum <guido@python.org> parents: 7951 diff changeset	1790 else if (res) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1791 if (nch == (pos + 3)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1792 res = ((strcmp(STR(CHILD(tree, pos)), "except") == 0)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1793 \|\| (strcmp(STR(CHILD(tree, pos)), "else") == 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1794 if (!res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1795 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	1796 }
7982 a909a2869ac5 Make new gcc -Wall happy Guido van Rossum <guido@python.org> parents: 7951 diff changeset	1797 else if (nch == (pos + 6)) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1798 res = (validate_name(CHILD(tree, pos), "except")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1799 && validate_colon(CHILD(tree, pos + 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1800 && validate_suite(CHILD(tree, pos + 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1801 && validate_name(CHILD(tree, pos + 3), "else"));
7982 a909a2869ac5 Make new gcc -Wall happy Guido van Rossum <guido@python.org> parents: 7951 diff changeset	1802 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1803 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1804 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	1805 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1806 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1807 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1808
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1809 } /* validate_try() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1810
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1811
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1812 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1813 validate_except_clause(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1814 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1815 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1816 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1817 int res = (validate_ntype(tree, except_clause)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1818 && ((nch == 1) \|\| (nch == 2) \|\| (nch == 4))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1819 && validate_name(CHILD(tree, 0), "except"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1820
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1821 if (res && (nch > 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1822 res = validate_test(CHILD(tree, 1));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1823 if (res && (nch == 4))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1824 res = (validate_comma(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1825 && validate_test(CHILD(tree, 3)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1826
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1827 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1828
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1829 } /* validate_except_clause() */
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
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1832 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1833 validate_test(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1834 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1835 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1836 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1837 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	1838
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1839 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	1840 res = ((nch == 1)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1841 && validate_lambdef(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1842 else if (res) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1843 int pos;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1844 res = validate_and_test(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1845 for (pos = 1; res && (pos < nch); pos += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1846 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	1847 && validate_and_test(CHILD(tree, pos + 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1848 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1849 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1850
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1851 } /* validate_test() */
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
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1854 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1855 validate_and_test(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1856 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1857 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1858 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1859 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1860 int res = (validate_ntype(tree, and_test)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1861 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1862 && validate_not_test(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1863
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1864 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	1865 res = (validate_name(CHILD(tree, pos), "and")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1866 && validate_not_test(CHILD(tree, 0)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1867
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1868 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1869
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1870 } /* validate_and_test() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1871
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1872
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1873 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1874 validate_not_test(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1875 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1876 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1877 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1878 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	1879
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1880 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1881 if (nch == 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1882 res = (validate_name(CHILD(tree, 0), "not")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1883 && validate_not_test(CHILD(tree, 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1884 else if (nch == 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1885 res = validate_comparison(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1886 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1887 return (res);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1888
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1889 } /* validate_not_test() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1890
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1891
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1892 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1893 validate_comparison(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1894 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1895 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1896 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1897 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1898 int res = (validate_ntype(tree, comparison)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1899 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1900 && validate_expr(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1901
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1902 for (pos = 1; res && (pos < nch); pos += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1903 res = (validate_comp_op(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1904 && validate_expr(CHILD(tree, pos + 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1905
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1906 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1907
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1908 } /* validate_comparison() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1909
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1910
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1911 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1912 validate_comp_op(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1913 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1914 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1915 int res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1916 int nch = NCH(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1917
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1918 if (!validate_ntype(tree, comp_op))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1919 return (0);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1920 if (nch == 1) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1921 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1922 * 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	1923 * 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	1924 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1925 tree = CHILD(tree, 0);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1926 switch (TYPE(tree)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1927 case LESS:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1928 case GREATER:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1929 case EQEQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1930 case EQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1931 case LESSEQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1932 case GREATEREQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1933 case NOTEQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1934 res = 1;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1935 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1936 case NAME:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1937 res = ((strcmp(STR(tree), "in") == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1938 \|\| (strcmp(STR(tree), "is") == 0));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1939 if (!res) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1940 char buff[128];
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	1941 (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	1942 err_string(buff);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1943 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1944 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1945 default:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1946 err_string("Illegal comparison operator type.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1947 break;
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 }
4600 d36250aefb82 Keep gcc -Wall happy. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	1950 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	1951 res = (validate_ntype(CHILD(tree, 0), NAME)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1952 && validate_ntype(CHILD(tree, 1), NAME)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1953 && (((strcmp(STR(CHILD(tree, 0)), "is") == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1954 && (strcmp(STR(CHILD(tree, 1)), "not") == 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1955 \|\| ((strcmp(STR(CHILD(tree, 0)), "not") == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1956 && (strcmp(STR(CHILD(tree, 1)), "in") == 0))));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1957 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1958 err_string("Unknown comparison operator.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1959 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1960 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1961
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1962 } /* validate_comp_op() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1963
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1964
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1965 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1966 validate_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1967 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1968 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1969 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1970 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1971 int res = (validate_ntype(tree, expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1972 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1973 && validate_xor_expr(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1974
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1975 for (j = 2; res && (j < nch); j += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1976 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	1977 && validate_vbar(CHILD(tree, j - 1)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1978
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1979 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1980
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1981 } /* validate_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1982
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1983
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1984 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1985 validate_xor_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1986 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1987 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1988 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1989 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1990 int res = (validate_ntype(tree, xor_expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1991 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1992 && validate_and_expr(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1993
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1994 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	1995 res = (validate_circumflex(CHILD(tree, j - 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1996 && validate_and_expr(CHILD(tree, j)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1997
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1998 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1999
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2000 } /* validate_xor_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2001
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2002
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2003 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2004 validate_and_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2005 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2006 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2007 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2008 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2009 int res = (validate_ntype(tree, and_expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2010 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2011 && validate_shift_expr(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2012
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2013 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	2014 res = (validate_ampersand(CHILD(tree, pos))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2015 && validate_shift_expr(CHILD(tree, pos + 1)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2016
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2017 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2018
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2019 } /* validate_and_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2020
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2021
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2022 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2023 validate_chain_two_ops(tree, termvalid, op1, op2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2024 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2025 int (*termvalid)();
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2026 int op1;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2027 int op2;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2028 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2029 int pos = 1;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2030 int nch = NCH(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2031 int res = (is_odd(nch)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2032 && (*termvalid)(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2033
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2034 for ( ; res && (pos < nch); pos += 2) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2035 if (TYPE(CHILD(tree, pos)) != op1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2036 res = validate_ntype(CHILD(tree, pos), op2);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2037 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2038 res = (*termvalid)(CHILD(tree, pos + 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2039 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2040 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2041
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2042 } /* validate_chain_two_ops() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2043
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2044
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2045 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2046 validate_shift_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2047 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2048 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2049 return (validate_ntype(tree, shift_expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2050 && validate_chain_two_ops(tree, validate_arith_expr,
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2051 LEFTSHIFT, RIGHTSHIFT));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2052
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2053 } /* validate_shift_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2054
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2055
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2056 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2057 validate_arith_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2058 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2059 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2060 return (validate_ntype(tree, arith_expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2061 && 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	2062
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2063 } /* validate_arith_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2064
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2065
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2066 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2067 validate_term(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2068 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2069 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2070 int pos = 1;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2071 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2072 int res = (validate_ntype(tree, term)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2073 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2074 && validate_factor(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2075
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2076 for ( ; res && (pos < nch); pos += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2077 res = (((TYPE(CHILD(tree, pos)) == STAR)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2078 \|\| (TYPE(CHILD(tree, pos)) == SLASH)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2079 \|\| (TYPE(CHILD(tree, pos)) == PERCENT))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2080 && validate_factor(CHILD(tree, pos + 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2081
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2082 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2083
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2084 } /* validate_term() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2085
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2086
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2087 /* factor:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2088 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2089 * factor: ('+'\|'-'\|'~') factor \| power
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2090 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2091 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2092 validate_factor(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2093 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2094 {
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, factor)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2097 && (((nch == 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2098 && ((TYPE(CHILD(tree, 0)) == PLUS)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2099 \|\| (TYPE(CHILD(tree, 0)) == MINUS)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2100 \|\| (TYPE(CHILD(tree, 0)) == TILDE))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2101 && validate_factor(CHILD(tree, 1)))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2102 \|\| ((nch == 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2103 && validate_power(CHILD(tree, 0)))));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2104 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2105
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2106 } /* validate_factor() */
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
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2109 /* power:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2110 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2111 * power: atom trailer* ('*' factor)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2112 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2113 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2114 validate_power(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2115 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2116 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2117 int pos = 1;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2118 int nch = NCH(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2119 int res = (validate_ntype(tree, power) && (nch >= 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2120 && validate_atom(CHILD(tree, 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2121
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2122 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	2123 res = validate_trailer(CHILD(tree, pos++));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2124 if (res && (pos < nch)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2125 if (!is_even(nch - pos)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2126 err_string("Illegal number of nodes for 'power'.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2127 return (0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2128 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2129 for ( ; res && (pos < (nch - 1)); pos += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2130 res = (validate_doublestar(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2131 && validate_factor(CHILD(tree, pos + 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2132 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2133 return (res);
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 } /* validate_power() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2136
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2137
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2138 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2139 validate_atom(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2140 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2141 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2142 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2143 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2144 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	2145
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2146 if (res) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2147 switch (TYPE(CHILD(tree, 0))) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2148 case LPAR:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2149 res = ((nch <= 3)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2150 && (validate_rparen(CHILD(tree, nch - 1))));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2151
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2152 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2153 res = validate_testlist(CHILD(tree, 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2154 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2155 case LSQB:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2156 res = ((nch <= 3)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2157 && validate_ntype(CHILD(tree, nch - 1), RSQB));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2158
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2159 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2160 res = validate_testlist(CHILD(tree, 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2161 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2162 case LBRACE:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2163 res = ((nch <= 3)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2164 && validate_ntype(CHILD(tree, nch - 1), RBRACE));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2165
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2166 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2167 res = validate_dictmaker(CHILD(tree, 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2168 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2169 case BACKQUOTE:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2170 res = ((nch == 3)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2171 && validate_testlist(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2172 && validate_ntype(CHILD(tree, 2), BACKQUOTE));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2173 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2174 case NAME:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2175 case NUMBER:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2176 res = (nch == 1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2177 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2178 case STRING:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2179 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	2180 res = validate_ntype(CHILD(tree, pos), STRING);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2181 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2182 default:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2183 res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2184 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2185 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2186 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2187 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2188
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2189 } /* validate_atom() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2190
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2191
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2192 /* funcdef:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2193 * 'def' NAME parameters ':' suite
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2194 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2195 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2196 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2197 validate_funcdef(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2198 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2199 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2200 return (validate_ntype(tree, funcdef)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2201 && validate_numnodes(tree, 5, "funcdef")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2202 && validate_name(CHILD(tree, 0), "def")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2203 && validate_ntype(CHILD(tree, 1), NAME)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2204 && validate_colon(CHILD(tree, 3))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2205 && validate_parameters(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2206 && validate_suite(CHILD(tree, 4)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2207
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2208 } /* validate_funcdef() */
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
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2211 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2212 validate_lambdef(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2213 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2214 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2215 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2216 int res = (validate_ntype(tree, lambdef)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2217 && ((nch == 3) \|\| (nch == 4))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2218 && validate_name(CHILD(tree, 0), "lambda")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2219 && validate_colon(CHILD(tree, nch - 2))
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2220 && validate_test(CHILD(tree, nch - 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2221
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2222 if (res && (nch == 4))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2223 res = validate_varargslist(CHILD(tree, 1));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2224 else if (!res && !PyErr_Occurred())
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	2225 (void) validate_numnodes(tree, 3, "lambdef");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2226
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2227 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2228
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2229 } /* validate_lambdef() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2230
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2231
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2232 /* arglist:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2233 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2234 * argument (',' argument)* [',']
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2235 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2236 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2237 validate_arglist(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2238 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2239 {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2240 return (validate_repeating_list(tree, arglist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2241 validate_argument, "arglist"));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2242
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2243 } /* validate_arglist() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2244
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
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2247 /* argument:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2248 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2249 * [test '='] test
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2250 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2251 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2252 validate_argument(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2253 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2254 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2255 int nch = NCH(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2256 int res = (validate_ntype(tree, argument)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2257 && ((nch == 1) \|\| (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2258 && validate_test(CHILD(tree, 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2259
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2260 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2261 res = (validate_equal(CHILD(tree, 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2262 && validate_test(CHILD(tree, 2)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2263
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2264 return (res);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2265
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2266 } /* validate_argument() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2267
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 /* trailer:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2271 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2272 * '(' [arglist] ')' \| '[' subscriptlist ']' \| '.' NAME
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2273 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2274 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2275 validate_trailer(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2276 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2277 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2278 int nch = NCH(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2279 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	2280
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2281 if (res) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2282 switch (TYPE(CHILD(tree, 0))) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2283 case LPAR:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2284 res = validate_rparen(CHILD(tree, nch - 1));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2285 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2286 res = validate_arglist(CHILD(tree, 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2287 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2288 case LSQB:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2289 res = (validate_numnodes(tree, 3, "trailer")
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2290 && validate_subscriptlist(CHILD(tree, 1))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2291 && validate_ntype(CHILD(tree, 2), RSQB));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2292 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2293 case DOT:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2294 res = (validate_numnodes(tree, 2, "trailer")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2295 && validate_ntype(CHILD(tree, 1), NAME));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2296 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2297 default:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2298 res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2299 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2300 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2301 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2302 else
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	2303 (void) validate_numnodes(tree, 2, "trailer");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2304
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2305 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2306
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2307 } /* validate_trailer() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2308
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2309
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2310 /* subscriptlist:
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2311 *
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2312 * subscript (',' subscript)* [',']
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2313 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2314 static int
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2315 validate_subscriptlist(tree)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2316 node *tree;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2317 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2318 return (validate_repeating_list(tree, subscriptlist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2319 validate_subscript, "subscriptlist"));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2320
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2321 } /* validate_subscriptlist() */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2322
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2323
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2324 /* subscript:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2325 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2326 * '.' '.' '.' \| test \| [test] ':' [test] [sliceop]
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2327 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2328 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2329 validate_subscript(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2330 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2331 {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2332 int offset = 0;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2333 int nch = NCH(tree);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2334 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	2335
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2336 if (!res) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2337 if (!PyErr_Occurred())
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2338 err_string("invalid number of arguments for subscript node");
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2339 return (0);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2340 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2341 if (TYPE(CHILD(tree, 0)) == DOT)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2342 /* take care of ('.' '.' '.') possibility */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2343 return (validate_numnodes(tree, 3, "subscript")
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2344 && validate_dot(CHILD(tree, 0))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2345 && validate_dot(CHILD(tree, 1))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2346 && validate_dot(CHILD(tree, 2)));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2347 if (nch == 1) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2348 if (TYPE(CHILD(tree, 0)) == test)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2349 res = validate_test(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2350 else
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2351 res = validate_colon(CHILD(tree, 0));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2352 return (res);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2353 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2354 /* Must be [test] ':' [test] [sliceop],
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2355 * but at least one of the optional components will
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2356 * be present, but we don't know which yet.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2357 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2358 if ((TYPE(CHILD(tree, 0)) != COLON) \|\| (nch == 4)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2359 res = validate_test(CHILD(tree, 0));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2360 offset = 1;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2361 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2362 if (res)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2363 res = validate_colon(CHILD(tree, offset));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2364 if (res) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2365 int rem = nch - ++offset;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2366 if (rem) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2367 if (TYPE(CHILD(tree, offset)) == test) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2368 res = validate_test(CHILD(tree, offset));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2369 ++offset;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2370 --rem;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2371 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2372 if (res && rem)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2373 res = validate_sliceop(CHILD(tree, offset));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2374 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2375 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2376 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2377
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2378 } /* validate_subscript() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2379
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2380
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2381 static int
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2382 validate_sliceop(tree)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2383 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2384 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2385 int nch = NCH(tree);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2386 int res = ((nch == 1) \|\| validate_numnodes(tree, 2, "sliceop"))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2387 && validate_ntype(tree, sliceop);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2388 if (!res && !PyErr_Occurred()) {
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	2389 res = validate_numnodes(tree, 1, "sliceop");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2390 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2391 if (res)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2392 res = validate_colon(CHILD(tree, 0));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2393 if (res && (nch == 2))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2394 res = validate_test(CHILD(tree, 1));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2395
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2396 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2397
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2398 } /* validate_sliceop() */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2399
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2400
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2401 static int
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2402 validate_exprlist(tree)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2403 node *tree;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2404 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2405 return (validate_repeating_list(tree, exprlist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2406 validate_expr, "exprlist"));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2407
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2408 } /* validate_exprlist() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2409
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2410
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2411 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2412 validate_dictmaker(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2413 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2414 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2415 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2416 int res = (validate_ntype(tree, dictmaker)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2417 && (nch >= 3)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2418 && validate_test(CHILD(tree, 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2419 && validate_colon(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2420 && validate_test(CHILD(tree, 2)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2421
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2422 if (res && ((nch % 4) == 0))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2423 res = validate_comma(CHILD(tree, --nch));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2424 else if (res)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2425 res = ((nch % 4) == 3);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2426
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2427 if (res && (nch > 3)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2428 int pos = 3;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2429 /* ( ',' test ':' test )* */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2430 while (res && (pos < nch)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2431 res = (validate_comma(CHILD(tree, pos))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2432 && validate_test(CHILD(tree, pos + 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2433 && validate_colon(CHILD(tree, pos + 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2434 && validate_test(CHILD(tree, pos + 3)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2435 pos += 4;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2436 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2437 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2438 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2439
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2440 } /* validate_dictmaker() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2441
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2442
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2443 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2444 validate_eval_input(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2445 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2446 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2447 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2448 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2449 int res = (validate_ntype(tree, eval_input)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2450 && (nch >= 2)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2451 && validate_testlist(CHILD(tree, 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2452 && validate_ntype(CHILD(tree, nch - 1), ENDMARKER));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2453
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2454 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	2455 res = validate_ntype(CHILD(tree, pos), NEWLINE);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2456
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2457 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2458
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2459 } /* validate_eval_input() */
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
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2462 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2463 validate_node(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2464 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2465 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2466 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	2467 int res = 1; /* result value */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2468 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	2469
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2470 while (res & (tree != 0)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2471 nch = NCH(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2472 next = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2473 switch (TYPE(tree)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2474 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2475 * Definition nodes.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2476 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2477 case funcdef:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2478 res = validate_funcdef(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2479 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2480 case classdef:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2481 res = validate_class(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2482 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2483 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2484 * "Trivial" parse tree nodes.
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2485 * (Why did I call these trivial?)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2486 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2487 case stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2488 res = validate_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2489 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2490 case small_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2491 /*
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2492 * 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	2493 * \| 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	2494 */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2495 res = validate_small_stmt(tree);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2496 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2497 case flow_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2498 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	2499 && ((TYPE(CHILD(tree, 0)) == break_stmt)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2500 \|\| (TYPE(CHILD(tree, 0)) == continue_stmt)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2501 \|\| (TYPE(CHILD(tree, 0)) == return_stmt)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2502 \|\| (TYPE(CHILD(tree, 0)) == raise_stmt)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2503 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2504 next = CHILD(tree, 0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2505 else if (nch == 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2506 err_string("Illegal flow_stmt type.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2507 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2508 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2509 * Compound statements.
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 simple_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2512 res = validate_simple_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 compound_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2515 res = validate_compound_stmt(tree);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2516 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2517 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2518 * Fundemental statements.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2519 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2520 case expr_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2521 res = validate_expr_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2522 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2523 case print_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2524 res = validate_print_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2525 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2526 case del_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2527 res = validate_del_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2528 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2529 case pass_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2530 res = (validate_numnodes(tree, 1, "pass")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2531 && validate_name(CHILD(tree, 0), "pass"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2532 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2533 case break_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2534 res = (validate_numnodes(tree, 1, "break")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2535 && validate_name(CHILD(tree, 0), "break"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2536 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2537 case continue_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2538 res = (validate_numnodes(tree, 1, "continue")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2539 && validate_name(CHILD(tree, 0), "continue"));
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 case return_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2542 res = validate_return_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2543 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2544 case raise_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2545 res = validate_raise_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 import_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2548 res = validate_import_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 global_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2551 res = validate_global_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 exec_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2554 res = validate_exec_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2555 break;
5236 b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	2556 case assert_stmt:
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	2557 res = validate_assert_stmt(tree);
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	2558 break;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2559 case if_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2560 res = validate_if(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2561 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2562 case while_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2563 res = validate_while(tree);
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 for_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2566 res = validate_for(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 try_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2569 res = validate_try(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 suite:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2572 res = validate_suite(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 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2575 * Expression nodes.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2576 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2577 case testlist:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2578 res = validate_testlist(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2579 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2580 case test:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2581 res = validate_test(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2582 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2583 case and_test:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2584 res = validate_and_test(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 not_test:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2587 res = validate_not_test(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 comparison:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2590 res = validate_comparison(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 exprlist:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2593 res = validate_exprlist(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2594 break;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2595 case comp_op:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2596 res = validate_comp_op(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2597 break;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2598 case expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2599 res = validate_expr(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2600 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2601 case xor_expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2602 res = validate_xor_expr(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 and_expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2605 res = validate_and_expr(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 shift_expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2608 res = validate_shift_expr(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 arith_expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2611 res = validate_arith_expr(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 term:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2614 res = validate_term(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 factor:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2617 res = validate_factor(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 power:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2620 res = validate_power(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 atom:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2623 res = validate_atom(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2624 break;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2625
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2626 default:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2627 /* Hopefully never reached! */
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2628 err_string("Unrecogniged node type.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2629 res = 0;
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 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2632 tree = next;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2633 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2634 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2635
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2636 } /* validate_node() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2637
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2638
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2639 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2640 validate_expr_tree(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2641 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2642 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2643 int res = validate_eval_input(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2644
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2645 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2646 err_string("Could not validate expression tuple.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2647
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2648 return (res);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2649
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2650 } /* validate_expr_tree() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2651
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2652
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2653 /* file_input:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2654 * (NEWLINE \| stmt)* ENDMARKER
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2655 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2656 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2657 validate_file_input(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2658 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2659 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2660 int j = 0;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2661 int nch = NCH(tree) - 1;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2662 int res = ((nch >= 0)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2663 && validate_ntype(CHILD(tree, nch), ENDMARKER));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2664
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2665 for ( ; res && (j < nch); ++j) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2666 if (TYPE(CHILD(tree, j)) == stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2667 res = validate_stmt(CHILD(tree, j));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2668 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2669 res = validate_newline(CHILD(tree, j));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2670 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2671 /* 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	2672 * 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	2673 * this, we have some debugging to do.
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2674 */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2675 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2676 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	2677
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2678 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2679
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	2680 } /* validate_file_input() */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2681
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2682
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2683 static PyObject*
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2684 pickle_constructor = NULL;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2685
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2686
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2687 static PyObject*
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2688 parser__pickler(self, args)
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2689 PyObject *self;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2690 PyObject *args;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2691 {
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	2692 NOTE(ARGUNUSED(self))
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2693 PyObject *result = NULL;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2694 PyObject *ast = NULL;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2695
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2696 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	2697 PyObject *newargs;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2698 PyObject *tuple;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2699
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2700 if ((newargs = Py_BuildValue("Oi", ast, 1)) == NULL)
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2701 goto finally;
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	2702 tuple = parser_ast2tuple((PyAST_Object*)NULL, newargs);
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2703 if (tuple != NULL) {
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2704 result = Py_BuildValue("O(O)", pickle_constructor, tuple);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2705 Py_DECREF(tuple);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2706 }
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2707 Py_XDECREF(newargs);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2708 }
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2709 finally:
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2710 return (result);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2711
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2712 } /* parser__pickler() */
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2713
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2714
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2715 /* 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	2716 * 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	2717 * 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	2718 * 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	2719 * inheritance.
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2720 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2721 static PyMethodDef parser_functions[] = {
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	2722 {"ast2tuple", (PyCFunction)parser_ast2tuple, METH_VARARGS,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2723 "Creates a tuple-tree representation of an AST."},
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	2724 {"ast2list", (PyCFunction)parser_ast2list, METH_VARARGS,
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2725 "Creates a list-tree representation of an AST."},
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	2726 {"compileast", (PyCFunction)parser_compileast, METH_VARARGS,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2727 "Compiles an AST object into a code object."},
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	2728 {"expr", (PyCFunction)parser_expr, METH_VARARGS,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2729 "Creates an AST object from an expression."},
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	2730 {"isexpr", (PyCFunction)parser_isexpr, METH_VARARGS,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2731 "Determines if an AST object was created from an expression."},
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	2732 {"issuite", (PyCFunction)parser_issuite, METH_VARARGS,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2733 "Determines if an AST object was created from a suite."},
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	2734 {"suite", (PyCFunction)parser_suite, METH_VARARGS,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2735 "Creates an AST object from a suite."},
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	2736 {"sequence2ast", (PyCFunction)parser_tuple2ast, METH_VARARGS,
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2737 "Creates an AST object from a tree representation."},
8112 b6ce1719323a In method & function tables, added a cast for the function pointers to keep Fred Drake <fdrake@acm.org> parents: 8039 diff changeset	2738 {"tuple2ast", (PyCFunction)parser_tuple2ast, METH_VARARGS,
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2739 "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	2740
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2741 /* 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	2742 {"_pickler", (PyCFunction)parser__pickler, METH_VARARGS,
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2743 "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	2744
8196 885de49b445c Made lint a bit happier. Fred Drake <fdrake@acm.org> parents: 8184 diff changeset	2745 {NULL, NULL, 0, NULL}
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2746 };
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2747
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2748
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	2749 void
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2750 initparser()
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2751 {
5039 38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	2752 PyObject* module;
38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	2753 PyObject* dict;
38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	2754
38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	2755 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	2756 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	2757 dict = PyModule_GetDict(module);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2758
6440 42bc792ac69f initparser(): Use PyErr_NewException() to create the exception. Fred Drake <fdrake@acm.org> parents: 6361 diff changeset	2759 parser_error = PyErr_NewException("parser.ParserError", NULL, NULL);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2760
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2761 if ((parser_error == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2762 \|\| (PyDict_SetItemString(dict, "ParserError", parser_error) != 0)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2763 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2764 * This is serious.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2765 */
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2766 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	2767 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2768 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2769 * 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	2770 */
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2771 Py_INCREF(&PyAST_Type);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2772 PyDict_SetItemString(dict, "ASTType", (PyObject*)&PyAST_Type);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2773
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2774 PyDict_SetItemString(dict, "__copyright__",
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2775 PyString_FromString(parser_copyright_string));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2776 PyDict_SetItemString(dict, "__doc__",
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2777 PyString_FromString(parser_doc_string));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2778 PyDict_SetItemString(dict, "__version__",
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2779 PyString_FromString(parser_version_string));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2780
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2781 parser_method_list = PyList_New(0);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2782 if (parser_method_list != NULL) {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2783 PyMethodDef *mdef = parser_methods;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2784
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2785 while (mdef->ml_name != NULL) {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2786 PyObject *temp = PyString_FromString(mdef->ml_name);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2787 if (temp != NULL) {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2788 PyList_Append(parser_method_list, temp);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2789 Py_DECREF(temp);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2790 }
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2791 ++mdef;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2792 }
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2793 }
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2794
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2795 /* register to support pickling */
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2796 module = PyImport_ImportModule("copy_reg");
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2797 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	2798 PyObject func, pickler;
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2799
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2800 func = PyObject_GetAttrString(module, "pickle");
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2801 pickle_constructor = PyDict_GetItemString(dict, "sequence2ast");
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2802 pickler = PyDict_GetItemString(dict, "_pickler");
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2803 Py_XINCREF(pickle_constructor);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2804 if ((func != NULL) && (pickle_constructor != NULL)
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2805 && (pickler != NULL)) {
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2806 PyObject *res;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2807
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2808 res = PyObject_CallFunction(
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2809 func, "OOO", &PyAST_Type, pickler, pickle_constructor);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2810 Py_XDECREF(res);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2811 }
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2812 Py_XDECREF(func);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2813 Py_DECREF(module);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2814 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2815 } /* initparser() */

Mercurial > cpython-lru_cache-weakref

annotate Modules/parsermodule.c @ 8291:f8a389b104f0 legacy-trunk