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Issue #9130: Fix validation of relative imports in parser module.

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This commit is contained in:
Mark Dickinson 2010-07-04 16:47:56 +00:00
parent a7ee59b3d3
commit 75b44b3437
3 changed files with 26 additions and 3 deletions
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7
Modules/parsermodule.c
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@ -1886,8 +1886,8 @@ count_from_dots(node *tree)
return i-1;
}
/* 'from' ('.'* dotted_name | '.') 'import' ('*' | '(' import_as_names ')' |
* import_as_names
/* import_from: ('from' ('.'* dotted_name | '.'+)
* 'import' ('*' | '(' import_as_names ')' | import_as_names))
*/
static int
validate_import_from(node *tree)
@ -1897,7 +1897,8 @@ validate_import_from(node *tree)
int havename = (TYPE(CHILD(tree, ndots + 1)) == dotted_name);
int offset = ndots + havename;
int res = validate_ntype(tree, import_from)
&& (nch >= 4 + ndots)
&& (offset >= 1)
&& (nch >= 3 + offset)
&& validate_name(CHILD(tree, 0), "from")
&& (!havename || validate_dotted_name(CHILD(tree, ndots + 1)))
&& validate_name(CHILD(tree, offset + 1), "import");