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Fix infinite recursion in bad recursive expressions.

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Fix bug that allows invalid regex to go unnoticed and crash later.
Fixes #5613.
Fixes #5612.

[SVN r72612]
This commit is contained in:
John Maddock
2011-06-16 11:27:13 +00:00
parent 6c181b02ba
commit fbf5c7d62c
4 changed files with 24 additions and 6 deletions
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3
test/regress/test_simple_repeats.cpp
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@ -477,6 +477,9 @@ void test_pocessive_repeats()
TEST_REGEX_SEARCH("x{1,4}+\\w", perl, "xxxxxa", match_default, make_array(0, 5, -2, -2));
TEST_REGEX_SEARCH("x{1,3}+\\w", perl, "xxxxxa", match_default, make_array(0, 4, -2, 4, 6, -2, -2));
TEST_INVALID_REGEX("\\d+++", perl);
TEST_INVALID_REGEX("\\d++*", perl);
TEST_INVALID_REGEX("\\d++?", perl);
TEST_INVALID_REGEX("\\d++{3}", perl);
TEST_INVALID_REGEX("\\d*++", perl);
TEST_INVALID_REGEX("\\d?++", perl);
TEST_INVALID_REGEX("\\d{1,2}++", perl);