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Revert an unintended change in JIT repeat detection. (#58) 

Co-authored-by: Zoltan Herczeg <hzmester@freemail.hu>
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Zoltan Herczeg 2021-11-24 17:58:30 +01:00 committed by GitHub
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commit d144199dfb
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3 changed files with 4 additions and 1 deletions
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2
ChangeLog
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@ -14,6 +14,8 @@ in pcre2grep with buffered fseek(stdin).
3. Merged patch from @carenas (GitHub #37, acc520924) to fix tests when -S is 3. Merged patch from @carenas (GitHub #37, acc520924) to fix tests when -S is
not supported. not supported.
4. Revert an unintended change in JIT repeat detection.
Version 10.39 29-October-2021 Version 10.39 29-October-2021
----------------------------- -----------------------------

2
src/pcre2_jit_compile.c
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@ -1621,7 +1621,7 @@ if (end[-(1 + LINK_SIZE)] != OP_KET || PRIVATE_DATA(begin) != 0)
/* /(?:AB){4,6}/ is currently converted to /(?:AB){3}(?AB){1,3}/ /* /(?:AB){4,6}/ is currently converted to /(?:AB){3}(?AB){1,3}/
* Skip the check of the second part. */ * Skip the check of the second part. */
if (PRIVATE_DATA(end - LINK_SIZE) == 0) if (PRIVATE_DATA(end - LINK_SIZE) != 0)
return TRUE; return TRUE;
next = end; next = end;

1
src/pcre2_jit_test.c
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@ -291,6 +291,7 @@ static struct regression_test_case regression_test_cases[] = {
{ MU, A, 0, 0, "(a(?:bc|cb|b|c)+?|ss)+e", "accssabccbcacbccbbXaccssabccbcacbccbbe" }, { MU, A, 0, 0, "(a(?:bc|cb|b|c)+?|ss)+e", "accssabccbcacbccbbXaccssabccbcacbccbbe" },
{ MU, A, 0, 0, "(a(?:bc|cb|b|c)+|ss)+?e", "accssabccbcacbccbbXaccssabccbcacbccbbe" }, { MU, A, 0, 0, "(a(?:bc|cb|b|c)+|ss)+?e", "accssabccbcacbccbbXaccssabccbcacbccbbe" },
{ MU, A, 0, 0, "(?:(b(c)+?)+)?\?(?:(bc)+|(cb)+)+(?:m)+", "bccbcccbcbccbcbPbccbcccbcbccbcbmmn" }, { MU, A, 0, 0, "(?:(b(c)+?)+)?\?(?:(bc)+|(cb)+)+(?:m)+", "bccbcccbcbccbcbPbccbcccbcbccbcbmmn" },
{ MU, A, 0, 0, "(aa|bb){8,1000}", "abaabbaabbaabbaab_aabbaabbaabbaabbaabbaabb_" },
/* Greedy and non-greedy * operators */ /* Greedy and non-greedy * operators */
{ CMU, A, 0, 0, "(?:AA)*AB", "aaaaaaamaaaaaaab" }, { CMU, A, 0, 0, "(?:AA)*AB", "aaaaaaamaaaaaaab" },