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Issue #5918: Fix a crash in the parser module.

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Patch by Amaury.
This commit is contained in:
Antoine Pitrou 2009-05-14 21:48:09 +00:00
parent eed30d830b
commit 42b5bcf048
2 changed files with 4 additions and 2 deletions
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2
Misc/NEWS
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@ -293,6 +293,8 @@ Core and Builtins
Library Library
------- -------
- Issue #5918: Fix a crash in the parser module.
- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr. - Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
- Issue #6022: a test file was created in the current working directory by - Issue #6022: a test file was created in the current working directory by

4
Modules/parsermodule.c
View file

@ -2092,14 +2092,14 @@ validate_try(node *tree)
return (res); return (res);
} }
/* try/except statement: skip past except_clause sections */ /* try/except statement: skip past except_clause sections */
while (res && (TYPE(CHILD(tree, pos)) == except_clause)) { while (res && pos < nch && (TYPE(CHILD(tree, pos)) == except_clause)) {
res = (validate_except_clause(CHILD(tree, pos)) res = (validate_except_clause(CHILD(tree, pos))
&& validate_colon(CHILD(tree, pos + 1)) && validate_colon(CHILD(tree, pos + 1))
&& validate_suite(CHILD(tree, pos + 2))); && validate_suite(CHILD(tree, pos + 2)));
pos += 3; pos += 3;
} }
/* skip else clause */ /* skip else clause */
if (res && (TYPE(CHILD(tree, pos)) == NAME) && if (res && pos < nch && (TYPE(CHILD(tree, pos)) == NAME) &&
(strcmp(STR(CHILD(tree, pos)), "else") == 0)) { (strcmp(STR(CHILD(tree, pos)), "else") == 0)) {
res = (validate_colon(CHILD(tree, pos + 1)) res = (validate_colon(CHILD(tree, pos + 1))
&& validate_suite(CHILD(tree, pos + 2))); && validate_suite(CHILD(tree, pos + 2)));