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

annotate Modules/parsermodule.c @ 8140:23a837726226 legacy-trunk

Add entry for poplib.

author	Fred Drake <fdrake@acm.org>
date	Fri, 24 Apr 1998 20:08:28 +0000
parents	b6ce1719323a
children	142165ed84d8

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.
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	20 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	21
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	22 #include "Python.h" /* general Python API */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	23 #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	24 #include "node.h" /* internal parser structure */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	25 #include "token.h" /* token definitions */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	26 /* ISTERMINAL() / ISNONTERMINAL() */
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	27 #include "compile.h" /* PyNode_Compile() */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	28
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	29
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	30 /* String constants used to initialize module attributes.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	31 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	32 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	33 static char*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	34 parser_copyright_string
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	35 = "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	36 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	37 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	38 Centrum, Amsterdam, The Netherlands.";
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	39
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	40
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	41 static char*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	42 parser_doc_string
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	43 = "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	44
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	45 static char*
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	46 parser_version_string = "0.4";
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	47
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	48
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	49 typedef PyObject* (*SeqMaker) Py_PROTO((int length));
3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	50 typedef void (SeqInserter) Py_PROTO((PyObject sequence,
3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	51 int index,
3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	52 PyObject* element));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	53
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	54 /* 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	55 * 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	56 * 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	57 * 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	58 * 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	59 * 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	60 * 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	61 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	62
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	63 /***********************************************************
2061 172ba04a5191 Added 1995 to copyright message. Guido van Rossum <guido@python.org> parents: 2055 diff changeset	64 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
172ba04a5191 Added 1995 to copyright message. Guido van Rossum <guido@python.org> parents: 2055 diff changeset	65 The Netherlands.
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	66
474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	67 All Rights Reserved
474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	68
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	69 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	70 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	71 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	72 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	73 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	74 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	75 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	76 distribution of the software without specific, written prior
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	77 permission.
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	78
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	79 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	80 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	81 (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	82
65d2d8e67da3 New permission notice, includes CNRI. Guido van Rossum <guido@python.org> parents: 4287 diff changeset	83 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	84 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	85 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	86 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	87 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	88 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	89 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	90 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	91
474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	92 ******************************************************************/
474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	93
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	94 static PyObject*
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	95 node2tuple(n, mkseq, addelem, lineno)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	96 node n; / node to convert */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	97 SeqMaker mkseq; /* create sequence */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	98 SeqInserter addelem; /* func. to add elem. in seq. */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	99 int lineno; /* include line numbers? */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	100 {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	101 if (n == NULL) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	102 Py_INCREF(Py_None);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	103 return Py_None;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	104 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	105 if (ISNONTERMINAL(TYPE(n))) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	106 int i;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	107 PyObject v, w;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	108 v = mkseq(1 + NCH(n));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	109 if (v == NULL)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	110 return v;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	111 w = PyInt_FromLong(TYPE(n));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	112 if (w == NULL) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	113 Py_DECREF(v);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	114 return NULL;
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	115 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	116 addelem(v, 0, w);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	117 for (i = 0; i < NCH(n); i++) {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	118 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	119 if (w == NULL) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	120 Py_DECREF(v);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	121 return NULL;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	122 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	123 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	124 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	125 return (v);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	126 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	127 else if (ISTERMINAL(TYPE(n))) {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	128 PyObject *result = mkseq(2 + lineno);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	129 if (result != NULL) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	130 addelem(result, 0, PyInt_FromLong(TYPE(n)));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	131 addelem(result, 1, PyString_FromString(STR(n)));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	132 if (lineno == 1)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	133 addelem(result, 2, PyInt_FromLong(n->n_lineno));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	134 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	135 return (result);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	136 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	137 else {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	138 PyErr_SetString(PyExc_SystemError,
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	139 "unrecognized parse tree node type");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	140 return NULL;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	141 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	142 } /* node2tuple() */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	143 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	144 * 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	145 */
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	146
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	147
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	148
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	149 /* 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	150 * '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	151 * 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	152 * 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	153 * 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	154 *
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	155 * 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	156 * Haven't decided yet.
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	157 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	158
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	159 #define PyAST_EXPR 1
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	160 #define PyAST_SUITE 2
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	161 #define PyAST_FRAGMENT 3
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	162
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	163
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	164 /* 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	165 * 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	166 * 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	167 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	168
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	169 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	170 parser_error = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	171
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	172
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	173 typedef struct _PyAST_Object {
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 PyObject_HEAD /* standard object header */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	176 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	177 int ast_type; /* EXPR or SUITE ? */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	178
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	179 } PyAST_Object;
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
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	182 staticforward void parser_free Py_PROTO((PyAST_Object *ast));
3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	183 staticforward int parser_compare Py_PROTO((PyAST_Object *left,
3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	184 PyAST_Object *right));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	185
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	186 staticforward PyObject parser_getattr Py_PROTO((PyObject self, char *name));
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	187
3200 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 /* static */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	190 PyTypeObject PyAST_Type = {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	191
5039 38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	192 PyObject_HEAD_INIT(NULL)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	193 0,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	194 "ast", /* tp_name */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	195 sizeof(PyAST_Object), /* tp_basicsize */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	196 0, /* tp_itemsize */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	197 (destructor)parser_free, /* tp_dealloc */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	198 0, /* tp_print */
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	199 parser_getattr, /* tp_getattr */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	200 0, /* tp_setattr */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	201 (cmpfunc)parser_compare, /* tp_compare */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	202 0, /* tp_repr */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	203 0, /* tp_as_number */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	204 0, /* tp_as_sequence */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	205 0, /* tp_as_mapping */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	206 0, /* tp_hash */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	207 0, /* tp_call */
5613 190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	208 0, /* tp_str */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	209 0, /* tp_getattro */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	210 0, /* tp_setattro */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	211
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	212 /* Functions to access object as input/output buffer */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	213 0, /* tp_as_buffer */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	214
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	215 /* Space for future expansion */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	216 0, /* tp_xxx4 */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	217
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	218 /* __doc__ */
190e35bbc15a Add doc string to type object. Fred Drake <fdrake@acm.org> parents: 5236 diff changeset	219 "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	220
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	221 }; /* PyAST_Type */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	222
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	223
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	224 static int
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	225 parser_compare_nodes(left, right)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	226 node *left;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	227 node *right;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	228 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	229 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	230
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	231 if (TYPE(left) < TYPE(right))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	232 return (-1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	233
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	234 if (TYPE(right) < TYPE(left))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	235 return (1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	236
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	237 if (ISTERMINAL(TYPE(left)))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	238 return (strcmp(STR(left), STR(right)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	239
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	240 if (NCH(left) < NCH(right))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	241 return (-1);
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 if (NCH(right) < NCH(left))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	244 return (1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	245
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	246 for (j = 0; j < NCH(left); ++j) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	247 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	248
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	249 if (v)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	250 return (v);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	251 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	252 return (0);
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 } /* parser_compare_nodes() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	255
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	256
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	257 /* 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	258 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	259 * Comparison function used by the Python operators ==, !=, <, >, <=, >=
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	260 * 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	261 * checks and protection code.
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 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	264 static int
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	265 parser_compare(left, right)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	266 PyAST_Object *left;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	267 PyAST_Object *right;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	268 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	269 if (left == right)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	270 return (0);
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 if ((left == 0) \|\| (right == 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	273 return (-1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	274
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	275 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	276
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	277 } /* parser_compare() */
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
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	280 /* parser_newastobject(node* ast)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	281 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	282 * 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	283 * '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	284 * Python code.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	285 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	286 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	287 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	288 parser_newastobject(ast, type)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	289 node *ast;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	290 int type;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	291 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	292 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	293
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	294 if (o != 0) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	295 o->ast_node = ast;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	296 o->ast_type = type;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	297 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	298 return ((PyObject*)o);
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() */
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
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	303 /* void parser_free(PyAST_Object* ast)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	304 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	305 * 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	306 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	307 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	308 static void
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	309 parser_free(ast)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	310 PyAST_Object *ast;
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 PyNode_Free(ast->ast_node);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	313 PyMem_DEL(ast);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	314
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	315 } /* parser_free() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	316
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	317
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	318 /* parser_ast2tuple(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	319 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	320 * 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	321 * 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	322 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	323 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	324 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	325 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	326 PyAST_Object *self;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	327 PyObject *args;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	328 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	329 PyObject *line_option = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	330 PyObject *res = 0;
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	331 int ok;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	332
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	333 if (self == NULL)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	334 ok = PyArg_ParseTuple(
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	335 args, "O!\|O:ast2tuple", &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	336 else
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	337 ok = PyArg_ParseTuple(args, "\|O:totuple", &line_option);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	338 if (ok) {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	339 int lineno = 0;
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	340 if (line_option != NULL) {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	341 lineno = PyObject_IsTrue(line_option) ? 1 : 0;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	342 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	343 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	344 * 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	345 * since it's known to work already.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	346 */
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	347 res = node2tuple(((PyAST_Object*)self)->ast_node,
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	348 PyTuple_New, PyTuple_SetItem, lineno);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	349 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	350 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	351
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	352 } /* parser_ast2tuple() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	353
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	354
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	355 /* parser_ast2tuple(PyObject* self, PyObject* args)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	356 *
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	357 * 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	358 * 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	359 *
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	360 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	361 static PyObject*
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	362 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	363 PyAST_Object *self;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	364 PyObject *args;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	365 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	366 PyObject *line_option = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	367 PyObject *res = 0;
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	368 int ok;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	369
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	370 if (self == NULL)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	371 ok = PyArg_ParseTuple(
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	372 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	373 else
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	374 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	375 if (ok) {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	376 int lineno = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	377 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	378 lineno = PyObject_IsTrue(line_option) ? 1 : 0;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	379 }
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 * 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	382 * since it's known to work already.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	383 */
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	384 res = node2tuple(((PyAST_Object *)self)->ast_node,
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	385 PyList_New, PyList_SetItem, lineno);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	386 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	387 return (res);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	388
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	389 } /* parser_ast2list() */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	390
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	391
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	392 /* parser_compileast(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	393 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	394 * 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	395 * 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	396 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	397 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	398 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	399 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	400 PyAST_Object *self;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	401 PyObject *args;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	402 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	403 PyObject* res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	404 char* str = "<ast>";
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	405 int ok;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	406
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	407 if (self == NULL)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	408 ok = PyArg_ParseTuple(
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	409 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	410 else
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	411 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	412
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	413 if (ok)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	414 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	415
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	416 return (res);
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 } /* parser_compileast() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	419
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 /* PyObject* parser_isexpr(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	422 * PyObject* parser_issuite(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	423 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	424 * 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	425 * 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	426 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	427 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	428 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	429 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	430 PyAST_Object *self;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	431 PyObject *args;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	432 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	433 PyObject* res = 0;
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	434 int ok;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	435
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	436 if (self == NULL)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	437 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	438 else
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	439 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	440
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	441 if (ok) {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	442 /* 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	443 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	444 Py_INCREF(res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	445 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	446 return (res);
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 } /* parser_isexpr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	449
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 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	452 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	453 PyAST_Object *self;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	454 PyObject *args;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	455 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	456 PyObject* res = 0;
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	457 int ok;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	458
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	459 if (self == NULL)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	460 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	461 else
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	462 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	463
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	464 if (ok) {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	465 /* 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	466 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	467 Py_INCREF(res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	468 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	469 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	470
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	471 } /* parser_issuite() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	472
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	473
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	474 static PyMethodDef
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	475 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	476 {"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	477 "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	478 {"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	479 "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	480 {"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	481 "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	482 {"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	483 "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	484 {"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	485 "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	486
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	487 {NULL}
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	488 };
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	489
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	490 static PyObject*
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	491 parser_method_list = NULL;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	492
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	493
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	494 static PyObject*
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	495 parser_getattr(self, name)
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	496 PyObject *self;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	497 char *name;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	498 {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	499 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	500 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	501 return (parser_method_list);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	502 }
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	503 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	504
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	505 } /* parser_getattr() */
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	506
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	507
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	508 /* err_string(char* message)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	509 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	510 * 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	511 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	512 */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	513 static void
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	514 err_string(message)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	515 char *message;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	516 {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	517 PyErr_SetString(parser_error, message);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	518
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	519 } /* err_string() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	520
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	521
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	522 /* 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	523 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	524 * 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	525 * successful, or set an exception if not.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	526 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	527 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	528 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	529 parser_do_parse(args, type)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	530 PyObject *args;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	531 int type;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	532 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	533 char* string = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	534 PyObject* res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	535
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	536 if (PyArg_ParseTuple(args, "s", &string)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	537 node* n = PyParser_SimpleParseString(string,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	538 (type == PyAST_EXPR)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	539 ? eval_input : file_input);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	540
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	541 if (n != 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	542 res = parser_newastobject(n, type);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	543 else
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	544 err_string("Could not parse string.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	545 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	546 return (res);
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 } /* parser_do_parse() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	549
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 /* PyObject* parser_expr(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	552 * PyObject* parser_suite(PyObject* self, PyObject* args)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	553 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	554 * 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	555 * 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	556 * 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	557 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	558 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	559 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	560 parser_expr(self, args)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	561 PyObject *self;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	562 PyObject *args;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	563 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	564 return (parser_do_parse(args, PyAST_EXPR));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	565
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	566 } /* parser_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	567
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	568
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	569 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	570 parser_suite(self, args)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	571 PyObject *self;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	572 PyObject *args;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	573 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	574 return (parser_do_parse(args, PyAST_SUITE));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	575
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	576 } /* parser_suite() */
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
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	579
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	580 /* 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	581 * 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	582 * 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	583 * 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	584 * 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	585 * 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	586 * phase, returning an exception instead.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	587 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	588 * 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	589 * 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	590 * 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	591 * 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	592 * 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	593 * 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	594 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	595
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	596
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	597 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	598 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	599 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	600
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 /* PyObject* parser_tuple2ast(PyObject* self, PyObject* args)
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 * 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	605 * 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	606 * 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	607 * 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	608 * 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	609 * 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	610 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	611 * 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	612 * AST objects.
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 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	615 static PyObject*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	616 parser_tuple2ast(self, args)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	617 PyObject *self;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	618 PyObject *args;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	619 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	620 PyObject *ast = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	621 PyObject *tuple = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	622 PyObject *temp = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	623 int ok;
4600 d36250aefb82 Keep gcc -Wall happy. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	624 int start_sym = 0;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	625
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	626 if (!PyArg_ParseTuple(args, "O:tuple2ast", &tuple))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	627 return (0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	628 if (!PySequence_Check(tuple)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	629 PyErr_SetString(PyExc_ValueError,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	630 "tuple2ast() requires a single sequence argument");
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	631 return (0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	632 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	633 /*
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	634 * 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	635 * object interface (AOI). Unfortunately, the AOI increments reference
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	636 * 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	637 * 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	638 * lists as well as tuples at the very least.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	639 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	640 ok = PyObject_Length(tuple) >= 2;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	641 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	642 temp = PySequence_GetItem(tuple, 0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	643 ok = (temp != NULL) && PyInt_Check(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	644 if (ok)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	645 /* this is used after the initial checks: */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	646 start_sym = PyInt_AsLong(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	647 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	648 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	649 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	650 temp = PySequence_GetItem(tuple, 1);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	651 ok = (temp != NULL) && PySequence_Check(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	652 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	653 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	654 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	655 temp = PySequence_GetItem(tuple, 1);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	656 ok = (temp != NULL) && PyObject_Length(temp) >= 2;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	657 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	658 PyObject *temp2 = PySequence_GetItem(temp, 0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	659 if (temp2 != NULL) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	660 ok = PyInt_Check(temp2);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	661 Py_DECREF(temp2);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	662 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	663 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	664 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	665 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	666 /* 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	667 if (!ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	668 err_string("malformed sequence for tuple2ast()");
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	669 return (0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	670 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	671 /*
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	672 * 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	673 * before we jump the gun.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	674 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	675 if (start_sym == eval_input) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	676 /* Might be an eval form. */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	677 node* expression = build_node_tree(tuple);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	678
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	679 if ((expression != 0) && validate_expr_tree(expression))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	680 ast = parser_newastobject(expression, PyAST_EXPR);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	681 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	682 else if (start_sym == file_input) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	683 /* This looks like an exec form so far. */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	684 node* suite_tree = build_node_tree(tuple);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	685
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	686 if ((suite_tree != 0) && validate_file_input(suite_tree))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	687 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	688 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	689 else
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	690 /* 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	691 * will be if I find a use for them.
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 err_string("Fragmentary parse trees not supported.");
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	694
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	695 /* 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	696 * 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	697 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	698 if ((ast == 0) && !PyErr_Occurred())
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	699 err_string("Unspecified ast error occurred.");
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	700
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	701 return (ast);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	702
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	703 } /* parser_tuple2ast() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	704
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	705
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	706 /* int check_terminal_tuple()
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	707 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	708 * 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	709 * 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	710 * 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	711 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	712 * 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	713 * 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	714 * 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	715 * 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	716 * 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	717 * 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	718 * by the validate_*() functions which operate on the internal
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	719 * representation.
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	720 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	721 static int
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	722 check_terminal_tuple(elem)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	723 PyObject *elem;
4084 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 int len = PyObject_Length(elem);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	726 int res = 1;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	727 char* str = "Illegal terminal symbol; bad node length.";
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	728
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	729 if ((len == 2) \|\| (len == 3)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	730 PyObject *temp = PySequence_GetItem(elem, 1);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	731 res = PyString_Check(temp);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	732 str = "Illegal terminal symbol; expected a string.";
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	733 if (res && (len == 3)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	734 PyObject* third = PySequence_GetItem(elem, 2);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	735 res = PyInt_Check(third);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	736 str = "Invalid third element of terminal node.";
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	737 Py_XDECREF(third);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	738 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	739 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	740 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	741 else {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	742 res = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	743 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	744 if (!res) {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	745 elem = Py_BuildValue("(os)", elem, str);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	746 PyErr_SetObject(parser_error, elem);
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 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	749
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	750 } /* check_terminal_tuple() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	751
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	752
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	753 /* node* build_node_children()
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	754 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	755 * 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	756 * 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	757 * 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	758 * and no memory will have been deallocated.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	759 *
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	760 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	761 static node*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	762 build_node_children(tuple, root, line_num)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	763 PyObject *tuple;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	764 node *root;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	765 int *line_num;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	766 {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	767 int len = PyObject_Length(tuple);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	768 int i;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	769
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	770 for (i = 1; i < len; ++i) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	771 /* 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	772 PyObject* elem = PySequence_GetItem(tuple, i);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	773 int ok = elem != NULL;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	774 long type = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	775 char *strn = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	776
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	777 if (ok)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	778 ok = PySequence_Check(elem);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	779 if (ok) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	780 PyObject *temp = PySequence_GetItem(elem, 0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	781 if (temp == NULL)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	782 ok = 0;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	783 else {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	784 ok = PyInt_Check(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	785 if (ok)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	786 type = PyInt_AsLong(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	787 Py_DECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	788 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	789 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	790 if (!ok) {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	791 PyErr_SetObject(parser_error,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	792 Py_BuildValue("(os)", elem,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	793 "Illegal node construct."));
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	794 Py_XDECREF(elem);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	795 return (0);
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 if (ISTERMINAL(type)) {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	798 if (check_terminal_tuple(elem)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	799 PyObject *temp = PySequence_GetItem(elem, 1);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	800
6469 dca9bdf5ea08 Remove requirement for strdup() since it causes so many troubles for too many Fred Drake <fdrake@acm.org> parents: 6465 diff changeset	801 /* 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	802 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	803 if (strn != NULL)
dca9bdf5ea08 Remove requirement for strdup() since it causes so many troubles for too many Fred Drake <fdrake@acm.org> parents: 6465 diff changeset	804 strcpy(strn, PyString_AS_STRING(temp));
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	805 Py_XDECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	806
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	807 if (PyObject_Length(elem) == 3) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	808 PyObject* temp = PySequence_GetItem(elem, 2);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	809 *line_num = PyInt_AsLong(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	810 Py_DECREF(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	811 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	812 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	813 else {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	814 Py_XDECREF(elem);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	815 return (0);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	816 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	817 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	818 else if (!ISNONTERMINAL(type)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	819 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	820 * 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	821 * Throw an exception.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	822 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	823 PyErr_SetObject(parser_error,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	824 Py_BuildValue("(os)", elem,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	825 "Unknown node type."));
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	826 Py_XDECREF(elem);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	827 return (0);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	828 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	829 PyNode_AddChild(root, type, strn, *line_num);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	830
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	831 if (ISNONTERMINAL(type)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	832 node* new_child = CHILD(root, i - 1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	833
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	834 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	835 Py_XDECREF(elem);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	836 return (0);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	837 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	838 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	839 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	840 ++(line_num); / line number after the newline! */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	841 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	842 Py_XDECREF(elem);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	843 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	844 return (root);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	845
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	846 } /* build_node_children() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	847
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	848
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	849 static node*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	850 build_node_tree(tuple)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	851 PyObject *tuple;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	852 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	853 node* res = 0;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	854 PyObject *temp = PySequence_GetItem(tuple, 0);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	855 long num = -1;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	856
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	857 if (temp != NULL)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	858 num = PyInt_AsLong(temp);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	859 Py_XDECREF(temp);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	860 if (ISTERMINAL(num)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	861 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	862 * 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	863 * 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	864 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	865 tuple = Py_BuildValue("(os)", tuple,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	866 "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	867 PyErr_SetObject(parser_error, tuple);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	868 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	869 else if (ISNONTERMINAL(num)) {
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 * 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	872 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	873 int line_num = 0;
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 res = PyNode_New(num);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	876 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	877 PyNode_Free(res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	878 res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	879 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	880 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	881 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	882 /* 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	883 * NONTERMINAL, we can't use it.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	884 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	885 PyErr_SetObject(parser_error,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	886 Py_BuildValue("(os)", tuple,
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	887 "Illegal component tuple."));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	888
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	889 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	890
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	891 } /* build_node_tree() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	892
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	893
4092 8592fa4a119b Support for old CPP Guido van Rossum <guido@python.org> parents: 4084 diff changeset	894 #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	895 #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	896 #else
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	897 #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	898 #endif
3200 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
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 * Validation routines used within the validation section:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	903 */
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	904 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	905 int type, char *string));
3200 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 #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	908 #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	909 #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	910 #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	911 #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	912 #define validate_equal(ch) validate_terminal(ch, EQUAL, "=")
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	913 #define validate_indent(ch) validate_terminal(ch, INDENT, 0)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	914 #define validate_lparen(ch) validate_terminal(ch, LPAR, "(")
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	915 #define validate_newline(ch) validate_terminal(ch, NEWLINE, 0)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	916 #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	917 #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	918 #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	919 #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	920 #define validate_doublestar(ch) validate_terminal(ch, DOUBLESTAR, "**")
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	921 #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	922 #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	923
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	924 VALIDATER(node); VALIDATER(small_stmt);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	925 VALIDATER(class); VALIDATER(node);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	926 VALIDATER(parameters); VALIDATER(suite);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	927 VALIDATER(testlist); VALIDATER(varargslist);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	928 VALIDATER(fpdef); VALIDATER(fplist);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	929 VALIDATER(stmt); VALIDATER(simple_stmt);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	930 VALIDATER(expr_stmt); VALIDATER(power);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	931 VALIDATER(print_stmt); VALIDATER(del_stmt);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	932 VALIDATER(return_stmt);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	933 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	934 VALIDATER(global_stmt);
5236 b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	935 VALIDATER(assert_stmt);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	936 VALIDATER(exec_stmt); VALIDATER(compound_stmt);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	937 VALIDATER(while); VALIDATER(for);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	938 VALIDATER(try); VALIDATER(except_clause);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	939 VALIDATER(test); VALIDATER(and_test);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	940 VALIDATER(not_test); VALIDATER(comparison);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	941 VALIDATER(comp_op); VALIDATER(expr);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	942 VALIDATER(xor_expr); VALIDATER(and_expr);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	943 VALIDATER(shift_expr); VALIDATER(arith_expr);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	944 VALIDATER(term); VALIDATER(factor);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	945 VALIDATER(atom); VALIDATER(lambdef);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	946 VALIDATER(trailer); VALIDATER(subscript);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	947 VALIDATER(subscriptlist); VALIDATER(sliceop);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	948 VALIDATER(exprlist); VALIDATER(dictmaker);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	949 VALIDATER(arglist); VALIDATER(argument);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	950
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	951
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	952 #define is_even(n) (((n) & 1) == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	953 #define is_odd(n) (((n) & 1) == 1)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	954
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	955
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	956 static int
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	957 validate_ntype(n, t)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	958 node *n;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	959 int t;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	960 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	961 int res = (TYPE(n) == t);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	962
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	963 if (!res) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	964 char buffer[128];
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	965 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	966 err_string(buffer);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	967 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	968 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	969
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	970 } /* validate_ntype() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	971
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	972
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	973 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	974 validate_numnodes(n, num, name)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	975 node *n;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	976 int num;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	977 const char *const name;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	978 {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	979 if (NCH(n) != num) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	980 char buff[60];
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	981 sprintf(buff, "Illegal number of children for %s node.", name);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	982 err_string(buff);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	983 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	984 return (NCH(n) == num);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	985
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	986 } /* validate_numnodes() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	987
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	988
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	989 static int
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	990 validate_terminal(terminal, type, string)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	991 node *terminal;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	992 int type;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	993 char *string;
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	994 {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	995 int res = (validate_ntype(terminal, type)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	996 && ((string == 0) \|\| (strcmp(string, STR(terminal)) == 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	997
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	998 if (!res && !PyErr_Occurred()) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	999 char buffer[60];
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1000 sprintf(buffer, "Illegal terminal: expected \"%s\"", string);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1001 err_string(buffer);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1002 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1003 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1004
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1005 } /* validate_terminal() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1006
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1007
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1008 /* X (',' X) [',']
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1009 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1010 static int
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1011 validate_repeating_list(tree, ntype, vfunc, name)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1012 node *tree;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1013 int ntype;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1014 int (*vfunc)();
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1015 const char *const name;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1016 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1017 int nch = NCH(tree);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1018 int res = (nch && validate_ntype(tree, ntype)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1019 && vfunc(CHILD(tree, 0)));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1020
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1021 if (!res && !PyErr_Occurred())
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1022 validate_numnodes(tree, 1, name);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1023 else {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1024 if (is_even(nch))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1025 res = validate_comma(CHILD(tree, --nch));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1026 if (res && nch > 1) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1027 int pos = 1;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1028 for ( ; res && pos < nch; pos += 2)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1029 res = (validate_comma(CHILD(tree, pos))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1030 && vfunc(CHILD(tree, pos + 1)));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1031 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1032 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1033 return (res);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1034
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1035 } /* validate_repeating_list() */
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
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1038 /* VALIDATE(class)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1039 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1040 * classdef:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1041 * 'class' NAME ['(' testlist ')'] ':' suite
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1042 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1043 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1044 validate_class(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1045 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1046 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1047 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1048 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	1049
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1050 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1051 res = (validate_name(CHILD(tree, 0), "class")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1052 && validate_ntype(CHILD(tree, 1), NAME)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1053 && validate_colon(CHILD(tree, nch - 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1054 && validate_suite(CHILD(tree, nch - 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1055 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1056 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1057 validate_numnodes(tree, 4, "class");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1058 if (res && (nch == 7)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1059 res = (validate_lparen(CHILD(tree, 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1060 && validate_testlist(CHILD(tree, 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1061 && validate_rparen(CHILD(tree, 4)));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1062 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1063 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1064
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1065 } /* validate_class() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1066
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1067
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1068 /* if_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1069 * 'if' test ':' suite ('elif' test ':' suite)* ['else' ':' suite]
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1070 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1071 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1072 validate_if(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1073 node *tree;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1074 {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1075 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1076 int res = (validate_ntype(tree, if_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1077 && (nch >= 4)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1078 && validate_name(CHILD(tree, 0), "if")
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1079 && validate_test(CHILD(tree, 1))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1080 && validate_colon(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1081 && validate_suite(CHILD(tree, 3)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1082
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1083 if (res && ((nch % 4) == 3)) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1084 /* ... 'else' ':' suite */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1085 res = (validate_name(CHILD(tree, nch - 3), "else")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1086 && validate_colon(CHILD(tree, nch - 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1087 && validate_suite(CHILD(tree, nch - 1)));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1088 nch -= 3;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1089 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1090 else if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1091 validate_numnodes(tree, 4, "if");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1092 if ((nch % 4) != 0)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1093 /* Will catch the case for nch < 4 */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1094 res = validate_numnodes(tree, 0, "if");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1095 else if (res && (nch > 4)) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1096 /* ... ('elif' test ':' suite)+ ... */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1097 int j = 4;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1098 while ((j < nch) && res) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1099 res = (validate_name(CHILD(tree, j), "elif")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1100 && validate_colon(CHILD(tree, j + 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1101 && validate_test(CHILD(tree, j + 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1102 && validate_suite(CHILD(tree, j + 3)));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1103 j += 4;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1104 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1105 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1106 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1107
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1108 } /* validate_if() */
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
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1111 /* parameters:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1112 * '(' [varargslist] ')'
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1113 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1114 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1115 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1116 validate_parameters(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1117 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1118 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1119 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1120 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	1121
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1122 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1123 res = (validate_lparen(CHILD(tree, 0))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1124 && validate_rparen(CHILD(tree, nch - 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1125 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1126 res = validate_varargslist(CHILD(tree, 1));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1127 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1128 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1129 validate_numnodes(tree, 2, "parameters");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1130
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1131 return (res);
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 } /* validate_parameters() */
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
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1136 /* VALIDATE(suite)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1137 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1138 * suite:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1139 * simple_stmt
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1140 * \| NEWLINE INDENT stmt+ DEDENT
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_suite(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, suite) && ((nch == 1) \|\| (nch >= 4)));
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 && (nch == 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1150 res = validate_simple_stmt(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1151 else if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1152 /* NEWLINE INDENT stmt+ DEDENT */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1153 res = (validate_newline(CHILD(tree, 0))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1154 && validate_indent(CHILD(tree, 1))
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1155 && validate_stmt(CHILD(tree, 2))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1156 && validate_dedent(CHILD(tree, nch - 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1157
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1158 if (res && (nch > 4)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1159 int i = 3;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1160 --nch; /* forget the DEDENT */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1161 for ( ; res && (i < nch); ++i)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1162 res = validate_stmt(CHILD(tree, i));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1163 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1164 else if (nch < 4)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1165 validate_numnodes(tree, 4, "suite");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1166 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1167 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1168
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1169 } /* validate_suite() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1170
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1171
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1172 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1173 validate_testlist(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1174 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1175 {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1176 return (validate_repeating_list(tree, testlist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1177 validate_test, "testlist"));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1178
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1179 } /* validate_testlist() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1180
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1181
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1182 /* VALIDATE(varargslist)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1183 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1184 * varargslist:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1185 * (fpdef ['=' test] ',')* ('' NAME [',' '' '' NAME] \| '' '*' NAME)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1186 * \| fpdef ['=' test] (',' fpdef ['=' test])* [',']
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1187 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1188 * (fpdef ['=' test] ',')*
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1189 * ('' NAME [',' (''\|'' '*') NAME]
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1190 * \| ('*'\|'' '*') NAME)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1191 * \| fpdef ['=' test] (',' fpdef ['=' test])* [',']
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1192 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1193 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1194 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1195 validate_varargslist(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1196 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1197 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1198 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1199 int res = validate_ntype(tree, varargslist) && (nch != 0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1200
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1201 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	1202 /* (fpdef ['=' test] ',')*
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1203 * ('' NAME [',' '' '' NAME] \| '' '*' NAME)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1204 */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1205 int pos = 0;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1206 int remaining = nch;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1207
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1208 while (res && (TYPE(CHILD(tree, pos)) == fpdef)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1209 res = validate_fpdef(CHILD(tree, pos));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1210 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1211 if (TYPE(CHILD(tree, pos + 1)) == EQUAL) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1212 res = validate_test(CHILD(tree, pos + 2));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1213 pos += 2;
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 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	1216 pos += 2;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1217 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1218 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1219 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1220 remaining = nch - pos;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1221 res = ((remaining == 2) \|\| (remaining == 3)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1222 \|\| (remaining == 5) \|\| (remaining == 6));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1223 if (!res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1224 validate_numnodes(tree, 2, "varargslist");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1225 else if (TYPE(CHILD(tree, pos)) == DOUBLESTAR)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1226 return ((remaining == 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1227 && validate_ntype(CHILD(tree, pos+1), NAME));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1228 else {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1229 res = validate_star(CHILD(tree, pos++));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1230 --remaining;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1231 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1232 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1233 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1234 if (remaining == 2) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1235 res = (validate_star(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1236 && validate_ntype(CHILD(tree, pos + 1), NAME));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1237 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1238 else {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1239 res = validate_ntype(CHILD(tree, pos++), NAME);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1240 if (res && (remaining >= 4)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1241 res = validate_comma(CHILD(tree, pos));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1242 if (--remaining == 3)
4287 f2f5cd7cb5b5 (parsermodule.c): Fixed sloppy typo: '==' -> '=' Fred Drake <fdrake@acm.org> parents: 4099 diff changeset	1243 res = (validate_star(CHILD(tree, pos + 1))
f2f5cd7cb5b5 (parsermodule.c): Fixed sloppy typo: '==' -> '=' Fred Drake <fdrake@acm.org> parents: 4099 diff changeset	1244 && validate_star(CHILD(tree, pos + 2)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1245 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1246 validate_ntype(CHILD(tree, pos + 1), DOUBLESTAR);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1247 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1248 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1249 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1250 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1251 err_string("Incorrect validation of variable arguments list.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1252 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1253 else if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1254 /* fpdef ['=' test] (',' fpdef ['=' test])* [','] */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1255 if (TYPE(CHILD(tree, nch - 1)) == COMMA)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1256 --nch;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1257
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1258 /* fpdef ['=' test] (',' fpdef ['=' test])* */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1259 res = (is_odd(nch)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1260 && validate_fpdef(CHILD(tree, 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1261
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1262 if (res && (nch > 1)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1263 int pos = 1;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1264 if (TYPE(CHILD(tree, 1)) == EQUAL) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1265 res = validate_test(CHILD(tree, 2));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1266 pos += 2;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1267 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1268 /* ... (',' fpdef ['=' test])* */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1269 for ( ; res && (pos < nch); pos += 2) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1270 /* ',' fpdef */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1271 res = (validate_comma(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1272 && validate_fpdef(CHILD(tree, pos + 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1273 if (res
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1274 && ((nch - pos) > 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1275 && (TYPE(CHILD(tree, pos + 2)) == EQUAL)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1276 /* ['=' test] */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1277 res = validate_test(CHILD(tree, pos + 3));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1278 pos += 2;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1279 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1280 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1281 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1282 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1283 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1284 err_string("Improperly formed argument list.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1285
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1286 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1287
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1288 } /* validate_varargslist() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1289
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1290
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1291 /* VALIDATE(fpdef)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1292 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1293 * fpdef:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1294 * NAME
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1295 * \| '(' fplist ')'
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1296 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1297 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1298 validate_fpdef(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1299 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1300 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1301 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1302 int res = validate_ntype(tree, fpdef);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1303
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1304 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1305 if (nch == 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1306 res = validate_ntype(CHILD(tree, 0), NAME);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1307 else if (nch == 3)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1308 res = (validate_lparen(CHILD(tree, 0))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1309 && validate_fplist(CHILD(tree, 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1310 && validate_rparen(CHILD(tree, 2)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1311 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1312 validate_numnodes(tree, 1, "fpdef");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1313 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1314 return (res);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1315
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1316 } /* validate_fpdef() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1317
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1318
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1319 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1320 validate_fplist(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1321 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1322 {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1323 return (validate_repeating_list(tree, fplist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1324 validate_fpdef, "fplist"));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1325
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1326 } /* validate_fplist() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1327
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1328
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1329 /* simple_stmt \| compound_stmt
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 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1332 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1333 validate_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1334 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1335 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1336 int res = (validate_ntype(tree, stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1337 && validate_numnodes(tree, 1, "stmt"));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1338
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1339 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1340 tree = CHILD(tree, 0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1341
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1342 if (TYPE(tree) == simple_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1343 res = validate_simple_stmt(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1344 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1345 res = validate_compound_stmt(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1346 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1347 return (res);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1348
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1349 } /* validate_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1350
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1351
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1352 /* small_stmt (';' small_stmt)* [';'] NEWLINE
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1353 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1354 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1355 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1356 validate_simple_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1357 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1358 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1359 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1360 int res = (validate_ntype(tree, simple_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1361 && (nch >= 2)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1362 && validate_small_stmt(CHILD(tree, 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1363 && validate_newline(CHILD(tree, nch - 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1364
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1365 if (nch < 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1366 res = validate_numnodes(tree, 2, "simple_stmt");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1367 --nch; /* forget the NEWLINE */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1368 if (res && is_even(nch))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1369 res = validate_semi(CHILD(tree, --nch));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1370 if (res && (nch > 2)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1371 int i;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1372
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1373 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	1374 res = (validate_semi(CHILD(tree, i))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1375 && validate_small_stmt(CHILD(tree, i + 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1376 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1377 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1378
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1379 } /* validate_simple_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1380
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 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_small_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 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1386 int nch = NCH(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1387 int res = (validate_numnodes(tree, 1, "small_stmt")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1388 && ((TYPE(CHILD(tree, 0)) == expr_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1389 \|\| (TYPE(CHILD(tree, 0)) == print_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1390 \|\| (TYPE(CHILD(tree, 0)) == del_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1391 \|\| (TYPE(CHILD(tree, 0)) == pass_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1392 \|\| (TYPE(CHILD(tree, 0)) == flow_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1393 \|\| (TYPE(CHILD(tree, 0)) == import_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1394 \|\| (TYPE(CHILD(tree, 0)) == global_stmt)
5236 b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1395 \|\| (TYPE(CHILD(tree, 0)) == assert_stmt)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1396 \|\| (TYPE(CHILD(tree, 0)) == exec_stmt)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1397
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1398 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1399 res = validate_node(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1400 else if (nch == 1) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1401 char buffer[60];
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1402 sprintf(buffer, "Unrecognized child node of small_stmt: %d.",
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1403 TYPE(CHILD(tree, 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1404 err_string(buffer);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1405 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1406 return (res);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1407
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1408 } /* validate_small_stmt */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1409
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1410
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1411 /* compound_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1412 * 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	1413 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1414 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1415 validate_compound_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1416 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1417 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1418 int res = (validate_ntype(tree, compound_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1419 && validate_numnodes(tree, 1, "compound_stmt"));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1420
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1421 if (!res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1422 return (0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1423
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1424 tree = CHILD(tree, 0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1425 res = ((TYPE(tree) == if_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1426 \|\| (TYPE(tree) == while_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1427 \|\| (TYPE(tree) == for_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1428 \|\| (TYPE(tree) == try_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1429 \|\| (TYPE(tree) == funcdef)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1430 \|\| (TYPE(tree) == classdef));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1431 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1432 res = validate_node(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1433 else {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1434 char buffer[60];
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1435 sprintf(buffer, "Illegal compound statement type: %d.", TYPE(tree));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1436 err_string(buffer);
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 return (res);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1439
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1440 } /* validate_compound_stmt() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1441
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1442
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1443 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1444 validate_expr_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1445 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1446 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1447 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1448 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1449 int res = (validate_ntype(tree, expr_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1450 && is_odd(nch)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1451 && validate_testlist(CHILD(tree, 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1452
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1453 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	1454 res = (validate_equal(CHILD(tree, j))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1455 && validate_testlist(CHILD(tree, j + 1)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1456
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1457 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1458
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1459 } /* validate_expr_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1460
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1461
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1462 /* print_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1463 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1464 * 'print' (test ',')* [test]
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 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1467 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1468 validate_print_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1469 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1470 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1471 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1472 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1473 int res = (validate_ntype(tree, print_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1474 && (nch != 0)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1475 && validate_name(CHILD(tree, 0), "print"));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1476
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1477 if (res && is_even(nch)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1478 res = validate_test(CHILD(tree, nch - 1));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1479 --nch;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1480 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1481 else if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1482 validate_numnodes(tree, 1, "print_stmt");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1483 for (j = 1; res && (j < nch); j += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1484 res = (validate_test(CHILD(tree, j))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1485 && validate_ntype(CHILD(tree, j + 1), COMMA));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1486
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1487 return (res);
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 } /* validate_print_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1490
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1491
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1492 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1493 validate_del_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1494 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1495 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1496 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	1497 && validate_name(CHILD(tree, 0), "del")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1498 && validate_exprlist(CHILD(tree, 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1499
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1500 } /* validate_del_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1501
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1502
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1503 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1504 validate_return_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1505 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1506 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1507 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1508 int res = (validate_ntype(tree, return_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1509 && ((nch == 1) \|\| (nch == 2))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1510 && validate_name(CHILD(tree, 0), "return"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1511
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1512 if (res && (nch == 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1513 res = validate_testlist(CHILD(tree, 1));
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_return_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_raise_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 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1524 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1525 int res = (validate_ntype(tree, raise_stmt)
7951 f42b757755eb Support raise with no parameters. Fred Drake <fdrake@acm.org> parents: 6469 diff changeset	1526 && ((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	1527
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1528 if (res) {
7951 f42b757755eb Support raise with no parameters. Fred Drake <fdrake@acm.org> parents: 6469 diff changeset	1529 res = validate_name(CHILD(tree, 0), "raise");
f42b757755eb Support raise with no parameters. Fred Drake <fdrake@acm.org> parents: 6469 diff changeset	1530 if (res && (nch >= 2))
f42b757755eb Support raise with no parameters. Fred Drake <fdrake@acm.org> parents: 6469 diff changeset	1531 res = validate_test(CHILD(tree, 1));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1532 if (res && nch > 2) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1533 res = (validate_comma(CHILD(tree, 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1534 && validate_test(CHILD(tree, 3)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1535 if (res && (nch > 4))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1536 res = (validate_comma(CHILD(tree, 4))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1537 && validate_test(CHILD(tree, 5)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1538 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1539 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1540 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1541 validate_numnodes(tree, 2, "raise");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1542 if (res && (nch == 4))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1543 res = (validate_comma(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1544 && validate_test(CHILD(tree, 3)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1545
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1546 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1547
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1548 } /* validate_raise_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1549
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1550
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1551 /* import_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1552 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1553 * 'import' dotted_name (',' dotted_name)*
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1554 * \| 'from' dotted_name 'import' ('' \| NAME (',' NAME))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1555 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1556 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1557 validate_import_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1558 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1559 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1560 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1561 int res = (validate_ntype(tree, import_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1562 && (nch >= 2) && is_even(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1563 && validate_ntype(CHILD(tree, 0), NAME)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1564 && 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	1565
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1566 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	1567 int j;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1568
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1569 for (j = 2; res && (j < nch); j += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1570 res = (validate_comma(CHILD(tree, j))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1571 && 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	1572 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1573 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	1574 res = ((nch >= 4) && is_even(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1575 && validate_name(CHILD(tree, 2), "import"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1576 if (nch == 4) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1577 res = ((TYPE(CHILD(tree, 3)) == NAME)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1578 \|\| (TYPE(CHILD(tree, 3)) == STAR));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1579 if (!res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1580 err_string("Illegal import statement.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1581 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1582 else {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1583 /* 'from' NAME 'import' NAME (',' NAME)+ */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1584 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1585 res = validate_ntype(CHILD(tree, 3), NAME);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1586 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	1587 res = (validate_comma(CHILD(tree, j))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1588 && validate_ntype(CHILD(tree, j + 1), NAME));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1589 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1590 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1591 else
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1592 res = 0;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1593
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1594 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1595
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1596 } /* validate_import_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1597
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1598
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1599 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1600 validate_global_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1601 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1602 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1603 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1604 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1605 int res = (validate_ntype(tree, global_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1606 && is_even(nch) && (nch >= 2));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1607
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1608 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1609 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	1610 && validate_ntype(CHILD(tree, 1), NAME));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1611 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	1612 res = (validate_comma(CHILD(tree, j))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1613 && validate_ntype(CHILD(tree, j + 1), NAME));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1614
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1615 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1616
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1617 } /* validate_global_stmt() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1618
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1619
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1620 /* exec_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1621 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1622 * 'exec' expr ['in' test [',' test]]
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1623 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1624 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1625 validate_exec_stmt(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1626 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1627 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1628 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1629 int res = (validate_ntype(tree, exec_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1630 && ((nch == 2) \|\| (nch == 4) \|\| (nch == 6))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1631 && validate_name(CHILD(tree, 0), "exec")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1632 && validate_expr(CHILD(tree, 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1633
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1634 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1635 err_string("Illegal exec statement.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1636 if (res && (nch > 2))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1637 res = (validate_name(CHILD(tree, 2), "in")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1638 && validate_test(CHILD(tree, 3)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1639 if (res && (nch == 6))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1640 res = (validate_comma(CHILD(tree, 4))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1641 && validate_test(CHILD(tree, 5)));
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_exec_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
5236 b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1648 /* assert_stmt:
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1649 *
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1650 * 'assert' test [',' test]
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1651 */
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1652 static int
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1653 validate_assert_stmt(tree)
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1654 node *tree;
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1655 {
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1656 int nch = NCH(tree);
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1657 int res = (validate_ntype(tree, assert_stmt)
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1658 && ((nch == 2) \|\| (nch == 4))
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1659 && (validate_name(CHILD(tree, 0), "__assert__") \|\|
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1660 validate_name(CHILD(tree, 0), "assert"))
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1661 && validate_test(CHILD(tree, 1)));
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1662
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1663 if (!res && !PyErr_Occurred())
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1664 err_string("Illegal assert statement.");
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1665 if (res && (nch > 2))
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1666 res = (validate_comma(CHILD(tree, 2))
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1667 && validate_test(CHILD(tree, 3)));
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1668
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1669 return (res);
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1670
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1671 } /* validate_assert_stmt() */
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1672
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	1673
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1674 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1675 validate_while(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1676 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1677 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1678 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1679 int res = (validate_ntype(tree, while_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1680 && ((nch == 4) \|\| (nch == 7))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1681 && validate_name(CHILD(tree, 0), "while")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1682 && validate_test(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1683 && validate_colon(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1684 && validate_suite(CHILD(tree, 3)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1685
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1686 if (res && (nch == 7))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1687 res = (validate_name(CHILD(tree, 4), "else")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1688 && validate_colon(CHILD(tree, 5))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1689 && validate_suite(CHILD(tree, 6)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1690
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1691 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1692
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1693 } /* validate_while() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1694
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1695
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1696 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1697 validate_for(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1698 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1699 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1700 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1701 int res = (validate_ntype(tree, for_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1702 && ((nch == 6) \|\| (nch == 9))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1703 && validate_name(CHILD(tree, 0), "for")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1704 && validate_exprlist(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1705 && validate_name(CHILD(tree, 2), "in")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1706 && validate_testlist(CHILD(tree, 3))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1707 && validate_colon(CHILD(tree, 4))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1708 && validate_suite(CHILD(tree, 5)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1709
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1710 if (res && (nch == 9))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1711 res = (validate_name(CHILD(tree, 6), "else")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1712 && validate_colon(CHILD(tree, 7))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1713 && validate_suite(CHILD(tree, 8)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1714
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1715 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1716
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1717 } /* validate_for() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1718
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1719
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1720 /* try_stmt:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1721 * 'try' ':' suite (except_clause ':' suite)+ ['else' ':' suite]
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1722 * \| 'try' ':' suite 'finally' ':' suite
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1723 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1724 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1725 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1726 validate_try(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1727 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1728 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1729 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1730 int pos = 3;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1731 int res = (validate_ntype(tree, try_stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1732 && (nch >= 6) && ((nch % 3) == 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1733
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1734 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1735 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	1736 && validate_colon(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1737 && validate_suite(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1738 && validate_colon(CHILD(tree, nch - 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1739 && validate_suite(CHILD(tree, nch - 1)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1740 else {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1741 const char* name = "execpt";
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1742 char buffer[60];
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1743 if (TYPE(CHILD(tree, nch - 3)) != except_clause)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1744 name = STR(CHILD(tree, nch - 3));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1745 sprintf(buffer, "Illegal number of children for try/%s node.", name);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1746 err_string(buffer);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1747 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1748 /* Skip past except_clause sections: */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1749 while (res && (TYPE(CHILD(tree, pos)) == except_clause)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1750 res = (validate_except_clause(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1751 && validate_colon(CHILD(tree, pos + 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1752 && validate_suite(CHILD(tree, pos + 2)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1753 pos += 3;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1754 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1755 if (res && (pos < nch)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1756 res = validate_ntype(CHILD(tree, pos), NAME);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1757 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	1758 res = (validate_numnodes(tree, 6, "try/finally")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1759 && validate_colon(CHILD(tree, 4))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1760 && validate_suite(CHILD(tree, 5)));
7982 a909a2869ac5 Make new gcc -Wall happy Guido van Rossum <guido@python.org> parents: 7951 diff changeset	1761 else if (res) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1762 if (nch == (pos + 3)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1763 res = ((strcmp(STR(CHILD(tree, pos)), "except") == 0)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1764 \|\| (strcmp(STR(CHILD(tree, pos)), "else") == 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1765 if (!res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1766 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	1767 }
7982 a909a2869ac5 Make new gcc -Wall happy Guido van Rossum <guido@python.org> parents: 7951 diff changeset	1768 else if (nch == (pos + 6)) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1769 res = (validate_name(CHILD(tree, pos), "except")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1770 && validate_colon(CHILD(tree, pos + 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1771 && validate_suite(CHILD(tree, pos + 2))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1772 && validate_name(CHILD(tree, pos + 3), "else"));
7982 a909a2869ac5 Make new gcc -Wall happy Guido van Rossum <guido@python.org> parents: 7951 diff changeset	1773 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1774 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1775 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	1776 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1777 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1778 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1779
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1780 } /* validate_try() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1781
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1782
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1783 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1784 validate_except_clause(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1785 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1786 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1787 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1788 int res = (validate_ntype(tree, except_clause)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1789 && ((nch == 1) \|\| (nch == 2) \|\| (nch == 4))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1790 && validate_name(CHILD(tree, 0), "except"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1791
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1792 if (res && (nch > 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1793 res = validate_test(CHILD(tree, 1));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1794 if (res && (nch == 4))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1795 res = (validate_comma(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1796 && validate_test(CHILD(tree, 3)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1797
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1798 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1799
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1800 } /* validate_except_clause() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1801
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1802
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1803 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1804 validate_test(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1805 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1806 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1807 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1808 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	1809
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1810 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	1811 res = ((nch == 1)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1812 && validate_lambdef(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1813 else if (res) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1814 int pos;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1815 res = validate_and_test(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1816 for (pos = 1; res && (pos < nch); pos += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1817 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	1818 && validate_and_test(CHILD(tree, pos + 1)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1819 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1820 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1821
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1822 } /* validate_test() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1823
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1824
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1825 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1826 validate_and_test(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1827 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1828 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1829 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1830 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1831 int res = (validate_ntype(tree, and_test)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1832 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1833 && validate_not_test(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1834
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1835 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	1836 res = (validate_name(CHILD(tree, pos), "and")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1837 && validate_not_test(CHILD(tree, 0)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1838
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1839 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1840
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1841 } /* validate_and_test() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1842
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1843
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1844 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1845 validate_not_test(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1846 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1847 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1848 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1849 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	1850
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1851 if (res) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1852 if (nch == 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1853 res = (validate_name(CHILD(tree, 0), "not")
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1854 && validate_not_test(CHILD(tree, 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1855 else if (nch == 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1856 res = validate_comparison(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1857 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1858 return (res);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1859
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1860 } /* validate_not_test() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1861
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1862
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1863 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1864 validate_comparison(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1865 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1866 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1867 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1868 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1869 int res = (validate_ntype(tree, comparison)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1870 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1871 && validate_expr(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1872
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1873 for (pos = 1; res && (pos < nch); pos += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1874 res = (validate_comp_op(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1875 && validate_expr(CHILD(tree, pos + 1)));
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 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1878
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1879 } /* validate_comparison() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1880
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1881
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1882 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1883 validate_comp_op(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1884 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1885 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1886 int res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1887 int nch = NCH(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1888
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1889 if (!validate_ntype(tree, comp_op))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1890 return (0);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1891 if (nch == 1) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1892 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1893 * 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	1894 * 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	1895 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1896 tree = CHILD(tree, 0);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1897 switch (TYPE(tree)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1898 case LESS:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1899 case GREATER:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1900 case EQEQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1901 case EQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1902 case LESSEQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1903 case GREATEREQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1904 case NOTEQUAL:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1905 res = 1;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1906 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1907 case NAME:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1908 res = ((strcmp(STR(tree), "in") == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1909 \|\| (strcmp(STR(tree), "is") == 0));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1910 if (!res) {
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1911 char buff[128];
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1912 sprintf(buff, "Illegal operator: '%s'.", STR(tree));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1913 err_string(buff);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1914 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1915 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1916 default:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1917 err_string("Illegal comparison operator type.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1918 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1919 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1920 }
4600 d36250aefb82 Keep gcc -Wall happy. Guido van Rossum <guido@python.org> parents: 4503 diff changeset	1921 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	1922 res = (validate_ntype(CHILD(tree, 0), NAME)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1923 && validate_ntype(CHILD(tree, 1), NAME)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1924 && (((strcmp(STR(CHILD(tree, 0)), "is") == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1925 && (strcmp(STR(CHILD(tree, 1)), "not") == 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1926 \|\| ((strcmp(STR(CHILD(tree, 0)), "not") == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1927 && (strcmp(STR(CHILD(tree, 1)), "in") == 0))));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1928 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1929 err_string("Unknown comparison operator.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1930 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1931 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1932
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1933 } /* validate_comp_op() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1934
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1935
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1936 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1937 validate_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1938 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1939 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1940 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1941 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1942 int res = (validate_ntype(tree, expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1943 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1944 && validate_xor_expr(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1945
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1946 for (j = 2; res && (j < nch); j += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1947 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	1948 && validate_vbar(CHILD(tree, j - 1)));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1949
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1950 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1951
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1952 } /* validate_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1953
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1954
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1955 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1956 validate_xor_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1957 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1958 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1959 int j;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1960 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1961 int res = (validate_ntype(tree, xor_expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1962 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1963 && validate_and_expr(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1964
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1965 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	1966 res = (validate_circumflex(CHILD(tree, j - 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1967 && validate_and_expr(CHILD(tree, j)));
3774 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 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1970
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1971 } /* validate_xor_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1972
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1973
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	1974 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1975 validate_and_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1976 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1977 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1978 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1979 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1980 int res = (validate_ntype(tree, and_expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1981 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1982 && validate_shift_expr(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1983
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1984 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	1985 res = (validate_ampersand(CHILD(tree, pos))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1986 && validate_shift_expr(CHILD(tree, pos + 1)));
3774 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 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1989
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1990 } /* validate_and_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1991
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1992
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	1993 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1994 validate_chain_two_ops(tree, termvalid, op1, op2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1995 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1996 int (*termvalid)();
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1997 int op1;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1998 int op2;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	1999 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2000 int pos = 1;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2001 int nch = NCH(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2002 int res = (is_odd(nch)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2003 && (*termvalid)(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2004
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2005 for ( ; res && (pos < nch); pos += 2) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2006 if (TYPE(CHILD(tree, pos)) != op1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2007 res = validate_ntype(CHILD(tree, pos), op2);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2008 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2009 res = (*termvalid)(CHILD(tree, pos + 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2010 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2011 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2012
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2013 } /* validate_chain_two_ops() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2014
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2015
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2016 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2017 validate_shift_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2018 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2019 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2020 return (validate_ntype(tree, shift_expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2021 && validate_chain_two_ops(tree, validate_arith_expr,
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2022 LEFTSHIFT, RIGHTSHIFT));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2023
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2024 } /* validate_shift_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2025
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2026
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2027 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2028 validate_arith_expr(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2029 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2030 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2031 return (validate_ntype(tree, arith_expr)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2032 && 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	2033
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2034 } /* validate_arith_expr() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2035
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2036
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2037 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2038 validate_term(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2039 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2040 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2041 int pos = 1;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2042 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2043 int res = (validate_ntype(tree, term)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2044 && is_odd(nch)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2045 && validate_factor(CHILD(tree, 0)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2046
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2047 for ( ; res && (pos < nch); pos += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2048 res = (((TYPE(CHILD(tree, pos)) == STAR)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2049 \|\| (TYPE(CHILD(tree, pos)) == SLASH)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2050 \|\| (TYPE(CHILD(tree, pos)) == PERCENT))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2051 && validate_factor(CHILD(tree, pos + 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2052
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2053 return (res);
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 } /* validate_term() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2056
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2057
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2058 /* factor:
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 * factor: ('+'\|'-'\|'~') factor \| power
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2061 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2062 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2063 validate_factor(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2064 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2065 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2066 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2067 int res = (validate_ntype(tree, factor)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2068 && (((nch == 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2069 && ((TYPE(CHILD(tree, 0)) == PLUS)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2070 \|\| (TYPE(CHILD(tree, 0)) == MINUS)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2071 \|\| (TYPE(CHILD(tree, 0)) == TILDE))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2072 && validate_factor(CHILD(tree, 1)))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2073 \|\| ((nch == 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2074 && validate_power(CHILD(tree, 0)))));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2075 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2076
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2077 } /* validate_factor() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2078
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2079
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2080 /* power:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2081 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2082 * power: atom trailer* ('*' factor)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2083 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2084 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2085 validate_power(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2086 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2087 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2088 int pos = 1;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2089 int nch = NCH(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2090 int res = (validate_ntype(tree, power) && (nch >= 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2091 && validate_atom(CHILD(tree, 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2092
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2093 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	2094 res = validate_trailer(CHILD(tree, pos++));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2095 if (res && (pos < nch)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2096 if (!is_even(nch - pos)) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2097 err_string("Illegal number of nodes for 'power'.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2098 return (0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2099 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2100 for ( ; res && (pos < (nch - 1)); pos += 2)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2101 res = (validate_doublestar(CHILD(tree, pos))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2102 && validate_factor(CHILD(tree, pos + 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2103 }
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2104 return (res);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2105
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2106 } /* validate_power() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2107
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2108
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2109 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2110 validate_atom(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2111 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2112 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2113 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2114 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2115 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	2116
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2117 if (res) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2118 switch (TYPE(CHILD(tree, 0))) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2119 case LPAR:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2120 res = ((nch <= 3)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2121 && (validate_rparen(CHILD(tree, nch - 1))));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2122
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2123 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2124 res = validate_testlist(CHILD(tree, 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2125 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2126 case LSQB:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2127 res = ((nch <= 3)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2128 && validate_ntype(CHILD(tree, nch - 1), RSQB));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2129
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2130 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2131 res = validate_testlist(CHILD(tree, 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2132 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2133 case LBRACE:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2134 res = ((nch <= 3)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2135 && validate_ntype(CHILD(tree, nch - 1), RBRACE));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2136
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2137 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2138 res = validate_dictmaker(CHILD(tree, 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2139 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2140 case BACKQUOTE:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2141 res = ((nch == 3)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2142 && validate_testlist(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2143 && validate_ntype(CHILD(tree, 2), BACKQUOTE));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2144 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2145 case NAME:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2146 case NUMBER:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2147 res = (nch == 1);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2148 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2149 case STRING:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2150 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	2151 res = validate_ntype(CHILD(tree, pos), STRING);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2152 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2153 default:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2154 res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2155 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2156 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2157 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2158 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2159
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2160 } /* validate_atom() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2161
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2162
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2163 /* funcdef:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2164 * 'def' NAME parameters ':' suite
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2165 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2166 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2167 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2168 validate_funcdef(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2169 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2170 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2171 return (validate_ntype(tree, funcdef)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2172 && validate_numnodes(tree, 5, "funcdef")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2173 && validate_name(CHILD(tree, 0), "def")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2174 && validate_ntype(CHILD(tree, 1), NAME)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2175 && validate_colon(CHILD(tree, 3))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2176 && validate_parameters(CHILD(tree, 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2177 && validate_suite(CHILD(tree, 4)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2178
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2179 } /* validate_funcdef() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2180
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2181
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2182 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2183 validate_lambdef(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2184 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2185 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2186 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2187 int res = (validate_ntype(tree, lambdef)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2188 && ((nch == 3) \|\| (nch == 4))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2189 && validate_name(CHILD(tree, 0), "lambda")
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2190 && validate_colon(CHILD(tree, nch - 2))
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2191 && validate_test(CHILD(tree, nch - 1)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2192
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2193 if (res && (nch == 4))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2194 res = validate_varargslist(CHILD(tree, 1));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2195 else if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2196 validate_numnodes(tree, 3, "lambdef");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2197
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2198 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2199
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2200 } /* validate_lambdef() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2201
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2202
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2203 /* arglist:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2204 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2205 * argument (',' argument)* [',']
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2206 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2207 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2208 validate_arglist(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2209 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2210 {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2211 return (validate_repeating_list(tree, arglist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2212 validate_argument, "arglist"));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2213
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2214 } /* validate_arglist() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2215
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2216
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2217
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2218 /* argument:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2219 *
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2220 * [test '='] test
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2221 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2222 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2223 validate_argument(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2224 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2225 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2226 int nch = NCH(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2227 int res = (validate_ntype(tree, argument)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2228 && ((nch == 1) \|\| (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2229 && validate_test(CHILD(tree, 0)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2230
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2231 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2232 res = (validate_equal(CHILD(tree, 1))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2233 && validate_test(CHILD(tree, 2)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2234
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2235 return (res);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2236
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2237 } /* validate_argument() */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2238
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2239
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2240
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2241 /* trailer:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2242 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2243 * '(' [arglist] ')' \| '[' subscriptlist ']' \| '.' NAME
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2244 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2245 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2246 validate_trailer(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2247 node *tree;
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 int nch = NCH(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2250 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	2251
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2252 if (res) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2253 switch (TYPE(CHILD(tree, 0))) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2254 case LPAR:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2255 res = validate_rparen(CHILD(tree, nch - 1));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2256 if (res && (nch == 3))
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2257 res = validate_arglist(CHILD(tree, 1));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2258 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2259 case LSQB:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2260 res = (validate_numnodes(tree, 3, "trailer")
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2261 && validate_subscriptlist(CHILD(tree, 1))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2262 && validate_ntype(CHILD(tree, 2), RSQB));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2263 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2264 case DOT:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2265 res = (validate_numnodes(tree, 2, "trailer")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2266 && validate_ntype(CHILD(tree, 1), NAME));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2267 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2268 default:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2269 res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2270 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2271 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2272 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2273 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2274 validate_numnodes(tree, 2, "trailer");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2275
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2276 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2277
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2278 } /* validate_trailer() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2279
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2280
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2281 /* subscriptlist:
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2282 *
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2283 * subscript (',' subscript)* [',']
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2284 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2285 static int
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2286 validate_subscriptlist(tree)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2287 node *tree;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2288 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2289 return (validate_repeating_list(tree, subscriptlist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2290 validate_subscript, "subscriptlist"));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2291
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2292 } /* validate_subscriptlist() */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2293
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2294
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2295 /* subscript:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2296 *
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2297 * '.' '.' '.' \| test \| [test] ':' [test] [sliceop]
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2298 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2299 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2300 validate_subscript(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2301 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2302 {
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2303 int offset = 0;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2304 int nch = NCH(tree);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2305 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	2306
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2307 if (!res) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2308 if (!PyErr_Occurred())
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2309 err_string("invalid number of arguments for subscript node");
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2310 return (0);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2311 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2312 if (TYPE(CHILD(tree, 0)) == DOT)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2313 /* take care of ('.' '.' '.') possibility */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2314 return (validate_numnodes(tree, 3, "subscript")
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2315 && validate_dot(CHILD(tree, 0))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2316 && validate_dot(CHILD(tree, 1))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2317 && validate_dot(CHILD(tree, 2)));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2318 if (nch == 1) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2319 if (TYPE(CHILD(tree, 0)) == test)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2320 res = validate_test(CHILD(tree, 0));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2321 else
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2322 res = validate_colon(CHILD(tree, 0));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2323 return (res);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2324 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2325 /* Must be [test] ':' [test] [sliceop],
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2326 * but at least one of the optional components will
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2327 * be present, but we don't know which yet.
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2328 */
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2329 if ((TYPE(CHILD(tree, 0)) != COLON) \|\| (nch == 4)) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2330 res = validate_test(CHILD(tree, 0));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2331 offset = 1;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2332 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2333 if (res)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2334 res = validate_colon(CHILD(tree, offset));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2335 if (res) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2336 int rem = nch - ++offset;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2337 if (rem) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2338 if (TYPE(CHILD(tree, offset)) == test) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2339 res = validate_test(CHILD(tree, offset));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2340 ++offset;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2341 --rem;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2342 }
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2343 if (res && rem)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2344 res = validate_sliceop(CHILD(tree, offset));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2345 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2346 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2347 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2348
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2349 } /* validate_subscript() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2350
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2351
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2352 static int
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2353 validate_sliceop(tree)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2354 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2355 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2356 int nch = NCH(tree);
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2357 int res = ((nch == 1) \|\| validate_numnodes(tree, 2, "sliceop"))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2358 && validate_ntype(tree, sliceop);
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2359 if (!res && !PyErr_Occurred()) {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2360 validate_numnodes(tree, 1, "sliceop");
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2361 res = 0;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2362 }
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2363 if (res)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2364 res = validate_colon(CHILD(tree, 0));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2365 if (res && (nch == 2))
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2366 res = validate_test(CHILD(tree, 1));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2367
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2368 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2369
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2370 } /* validate_sliceop() */
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
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2373 static int
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2374 validate_exprlist(tree)
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2375 node *tree;
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2376 {
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2377 return (validate_repeating_list(tree, exprlist,
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2378 validate_expr, "exprlist"));
7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2379
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2380 } /* validate_exprlist() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2381
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2382
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2383 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2384 validate_dictmaker(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2385 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2386 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2387 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2388 int res = (validate_ntype(tree, dictmaker)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2389 && (nch >= 3)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2390 && validate_test(CHILD(tree, 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2391 && validate_colon(CHILD(tree, 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2392 && validate_test(CHILD(tree, 2)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2393
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2394 if (res && ((nch % 4) == 0))
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2395 res = validate_comma(CHILD(tree, --nch));
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2396 else if (res)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2397 res = ((nch % 4) == 3);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2398
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2399 if (res && (nch > 3)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2400 int pos = 3;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2401 /* ( ',' test ':' test )* */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2402 while (res && (pos < nch)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2403 res = (validate_comma(CHILD(tree, pos))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2404 && validate_test(CHILD(tree, pos + 1))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2405 && validate_colon(CHILD(tree, pos + 2))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2406 && validate_test(CHILD(tree, pos + 3)));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2407 pos += 4;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2408 }
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 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2411
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2412 } /* validate_dictmaker() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2413
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2414
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2415 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2416 validate_eval_input(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2417 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2418 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2419 int pos;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2420 int nch = NCH(tree);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2421 int res = (validate_ntype(tree, eval_input)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2422 && (nch >= 2)
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2423 && validate_testlist(CHILD(tree, 0))
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2424 && validate_ntype(CHILD(tree, nch - 1), ENDMARKER));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2425
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2426 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	2427 res = validate_ntype(CHILD(tree, pos), NEWLINE);
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2428
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2429 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2430
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2431 } /* validate_eval_input() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2432
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2433
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2434 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2435 validate_node(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2436 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2437 {
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2438 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	2439 int res = 1; /* result value */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2440 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	2441
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2442 while (res & (tree != 0)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2443 nch = NCH(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2444 next = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2445 switch (TYPE(tree)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2446 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2447 * Definition nodes.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2448 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2449 case funcdef:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2450 res = validate_funcdef(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2451 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2452 case classdef:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2453 res = validate_class(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2454 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2455 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2456 * "Trivial" parse tree nodes.
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2457 * (Why did I call these trivial?)
3200 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 case stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2460 res = validate_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2461 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2462 case small_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2463 /*
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2464 * 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	2465 * \| 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	2466 */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2467 res = validate_small_stmt(tree);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2468 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2469 case flow_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2470 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	2471 && ((TYPE(CHILD(tree, 0)) == break_stmt)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2472 \|\| (TYPE(CHILD(tree, 0)) == continue_stmt)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2473 \|\| (TYPE(CHILD(tree, 0)) == return_stmt)
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2474 \|\| (TYPE(CHILD(tree, 0)) == raise_stmt)));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2475 if (res)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2476 next = CHILD(tree, 0);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2477 else if (nch == 1)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2478 err_string("Illegal flow_stmt type.");
3200 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 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2481 * Compound statements.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2482 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2483 case simple_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2484 res = validate_simple_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2485 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2486 case compound_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2487 res = validate_compound_stmt(tree);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2488 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2489 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2490 * Fundemental statements.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2491 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2492 case expr_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2493 res = validate_expr_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2494 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2495 case print_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2496 res = validate_print_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2497 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2498 case del_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2499 res = validate_del_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2500 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2501 case pass_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2502 res = (validate_numnodes(tree, 1, "pass")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2503 && validate_name(CHILD(tree, 0), "pass"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2504 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2505 case break_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2506 res = (validate_numnodes(tree, 1, "break")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2507 && validate_name(CHILD(tree, 0), "break"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2508 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2509 case continue_stmt:
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2510 res = (validate_numnodes(tree, 1, "continue")
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2511 && validate_name(CHILD(tree, 0), "continue"));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2512 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2513 case return_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2514 res = validate_return_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2515 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2516 case raise_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2517 res = validate_raise_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2518 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2519 case import_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2520 res = validate_import_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2521 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2522 case global_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2523 res = validate_global_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2524 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2525 case exec_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2526 res = validate_exec_stmt(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2527 break;
5236 b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	2528 case assert_stmt:
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	2529 res = validate_assert_stmt(tree);
b4e671bc1331 Support assert stmt. Guido van Rossum <guido@python.org> parents: 5039 diff changeset	2530 break;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2531 case if_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2532 res = validate_if(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2533 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2534 case while_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2535 res = validate_while(tree);
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 for_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2538 res = validate_for(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2539 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2540 case try_stmt:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2541 res = validate_try(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2542 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2543 case suite:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2544 res = validate_suite(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2545 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2546 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2547 * Expression nodes.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2548 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2549 case testlist:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2550 res = validate_testlist(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2551 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2552 case test:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2553 res = validate_test(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2554 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2555 case and_test:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2556 res = validate_and_test(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2557 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2558 case not_test:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2559 res = validate_not_test(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2560 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2561 case comparison:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2562 res = validate_comparison(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2563 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2564 case exprlist:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2565 res = validate_exprlist(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2566 break;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2567 case comp_op:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2568 res = validate_comp_op(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2569 break;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2570 case expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2571 res = validate_expr(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2572 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2573 case xor_expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2574 res = validate_xor_expr(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2575 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2576 case and_expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2577 res = validate_and_expr(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2578 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2579 case shift_expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2580 res = validate_shift_expr(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2581 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2582 case arith_expr:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2583 res = validate_arith_expr(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2584 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2585 case term:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2586 res = validate_term(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2587 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2588 case factor:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2589 res = validate_factor(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2590 break;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2591 case power:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2592 res = validate_power(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2593 break;
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2594 case atom:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2595 res = validate_atom(tree);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2596 break;
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2597
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2598 default:
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2599 /* Hopefully never reached! */
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2600 err_string("Unrecogniged node type.");
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2601 res = 0;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2602 break;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2603 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2604 tree = next;
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2605 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2606 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2607
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2608 } /* validate_node() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2609
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2610
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2611 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2612 validate_expr_tree(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2613 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2614 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2615 int res = validate_eval_input(tree);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2616
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2617 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2618 err_string("Could not validate expression tuple.");
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2619
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2620 return (res);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2621
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2622 } /* validate_expr_tree() */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2623
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2624
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2625 /* file_input:
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2626 * (NEWLINE \| stmt)* ENDMARKER
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2627 */
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2628 static int
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2629 validate_file_input(tree)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2630 node *tree;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2631 {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2632 int j = 0;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2633 int nch = NCH(tree) - 1;
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2634 int res = ((nch >= 0)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2635 && validate_ntype(CHILD(tree, nch), ENDMARKER));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2636
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2637 for ( ; res && (j < nch); ++j) {
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2638 if (TYPE(CHILD(tree, j)) == stmt)
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2639 res = validate_stmt(CHILD(tree, j));
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2640 else
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2641 res = validate_newline(CHILD(tree, j));
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2642 }
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2643 /* 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	2644 * 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	2645 * this, we have some debugging to do.
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2646 */
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2647 if (!res && !PyErr_Occurred())
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2648 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	2649
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2650 return (res);
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2651
4099 3a3b36716689 Patches to make it compile with K&R C Guido van Rossum <guido@python.org> parents: 4092 diff changeset	2652 } /* validate_file_input() */
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2653
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2654
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2655 static PyObject*
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2656 pickle_constructor = NULL;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2657
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2658
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2659 static PyObject*
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2660 parser__pickler(self, args)
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2661 PyObject *self;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2662 PyObject *args;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2663 {
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2664 PyObject *result = NULL;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2665 PyObject *ast = NULL;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2666
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2667 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	2668 PyObject *newargs;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2669 PyObject *tuple;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2670
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2671 if ((newargs = Py_BuildValue("Oi", ast, 1)) == NULL)
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2672 goto finally;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2673 tuple = parser_ast2tuple(NULL, newargs);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2674 if (tuple != NULL) {
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2675 result = Py_BuildValue("O(O)", pickle_constructor, tuple);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2676 Py_DECREF(tuple);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2677 }
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2678 Py_XDECREF(newargs);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2679 }
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2680 finally:
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2681 return (result);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2682
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2683 } /* parser__pickler() */
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2684
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2685
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2686 /* 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	2687 * 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	2688 * 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	2689 * 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	2690 * inheritance.
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2691 */
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2692 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	2693 {"ast2tuple", (PyCFunction)parser_ast2tuple, METH_VARARGS,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2694 "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	2695 {"ast2list", (PyCFunction)parser_ast2list, METH_VARARGS,
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2696 "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	2697 {"compileast", (PyCFunction)parser_compileast, METH_VARARGS,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2698 "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	2699 {"expr", (PyCFunction)parser_expr, METH_VARARGS,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2700 "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	2701 {"isexpr", (PyCFunction)parser_isexpr, METH_VARARGS,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2702 "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	2703 {"issuite", (PyCFunction)parser_issuite, METH_VARARGS,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2704 "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	2705 {"suite", (PyCFunction)parser_suite, METH_VARARGS,
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2706 "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	2707 {"sequence2ast", (PyCFunction)parser_tuple2ast, METH_VARARGS,
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2708 "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	2709 {"tuple2ast", (PyCFunction)parser_tuple2ast, METH_VARARGS,
4084 7f83e24d1d86 New batch from Fred Guido van Rossum <guido@python.org> parents: 3774 diff changeset	2710 "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	2711
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2712 /* 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	2713 {"_pickler", (PyCFunction)parser__pickler, METH_VARARGS,
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2714 "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	2715
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2716 {0, 0, 0}
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2717 };
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2718
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2719
1406 474823e5f7dc * parsermodule.c, Makefile, config.c: rudimentary interface to the Python Guido van Rossum <guido@python.org> parents: diff changeset	2720 void
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2721 initparser()
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2722 {
5039 38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	2723 PyObject* module;
38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	2724 PyObject* dict;
38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	2725
38032267968c Initialize the ob_type field of PyAST_Type dynamically (in Guido van Rossum <guido@python.org> parents: 4600 diff changeset	2726 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	2727 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	2728 dict = PyModule_GetDict(module);
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2729
6440 42bc792ac69f initparser(): Use PyErr_NewException() to create the exception. Fred Drake <fdrake@acm.org> parents: 6361 diff changeset	2730 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	2731
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2732 if ((parser_error == 0)
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2733 \|\| (PyDict_SetItemString(dict, "ParserError", parser_error) != 0)) {
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2734 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2735 * This is serious.
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2736 */
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2737 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	2738 }
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2739 /*
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2740 * 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	2741 */
3774 4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2742 Py_INCREF(&PyAST_Type);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2743 PyDict_SetItemString(dict, "ASTType", (PyObject*)&PyAST_Type);
4c78d73c5667 New submission by Fred Drake. Guido van Rossum <guido@python.org> parents: 3336 diff changeset	2744
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2745 PyDict_SetItemString(dict, "__copyright__",
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2746 PyString_FromString(parser_copyright_string));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2747 PyDict_SetItemString(dict, "__doc__",
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2748 PyString_FromString(parser_doc_string));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2749 PyDict_SetItemString(dict, "__version__",
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2750 PyString_FromString(parser_version_string));
8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2751
8039 a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2752 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	2753 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	2754 PyMethodDef *mdef = parser_methods;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2755
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2756 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	2757 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	2758 if (temp != NULL) {
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2759 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	2760 Py_DECREF(temp);
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2761 }
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2762 ++mdef;
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2763 }
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2764 }
a38550613af3 The documentation threatened it would happen -- the functions that should Fred Drake <fdrake@acm.org> parents: 8034 diff changeset	2765
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2766 /* register to support pickling */
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2767 module = PyImport_ImportModule("copy_reg");
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2768 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	2769 PyObject func, pickler;
8034 cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2770
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2771 func = PyObject_GetAttrString(module, "pickle");
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2772 pickle_constructor = PyDict_GetItemString(dict, "sequence2ast");
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2773 pickler = PyDict_GetItemString(dict, "_pickler");
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2774 Py_XINCREF(pickle_constructor);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2775 if ((func != NULL) && (pickle_constructor != NULL)
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2776 && (pickler != NULL)) {
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2777 PyObject *res;
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2778
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2779 res = PyObject_CallFunction(
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2780 func, "OOO", &PyAST_Type, pickler, pickle_constructor);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2781 Py_XDECREF(res);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2782 }
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2783 Py_XDECREF(func);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2784 Py_DECREF(module);
cd3092069f5a Added support for pickling ast objects. Fred Drake <fdrake@acm.org> parents: 7982 diff changeset	2785 }
3200 8f5ab1a6c914 Fred Drake's new parser module Guido van Rossum <guido@python.org> parents: 2150 diff changeset	2786 } /* initparser() */

Mercurial > cpython-lru_cache-weakref

annotate Modules/parsermodule.c @ 8140:23a837726226 legacy-trunk