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Correct stack unwinding inside recursions when seeing (*SKIP).

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Fixes https://github.com/boostorg/regex/issues/152.
This commit is contained in:
jzmaddock
2021-10-20 12:12:57 +01:00
parent 75600e3519
commit 354e02f141
2 changed files with 5 additions and 1 deletions
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3
test/regress/test_perl_ex.cpp
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@ -999,6 +999,9 @@ void test_verbs()
TEST_REGEX_SEARCH("AA+(*SKIP)(B|Z)|C", perl, "AAAC", match_default, make_array(3, 4, -1, -1, -2, -2));
TEST_REGEX_SEARCH("AA+(*SKIP)(B|Z)|AC", perl, "AAAC", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("AA+(*SKIP)B|C", perl, "AAAC", match_default, make_array(3, 4, -2, -2));
// https://github.com/boostorg/regex/issues/152
TEST_REGEX_SEARCH("\\A((\x1f((?1) )?+)?+(*SKIP) *?(?2)*?)\\z", perl, "\x20\x1f\x1f\x20", match_default, make_array(-2, -2));
TEST_REGEX_SEARCH("^(?:aaa(*THEN)\\w{6}|bbb(*THEN)\\w{5}|ccc(*THEN)\\w{4}|\\w{3})", perl, "aaaxxxxxx", match_default, make_array(0, 9, -2, -2));
TEST_REGEX_SEARCH("^(?:aaa(*THEN)\\w{6}|bbb(*THEN)\\w{5}|ccc(*THEN)\\w{4}|\\w{3})", perl, "aaa++++++", match_default, make_array(-2, -2));