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2023-11-16Fix regex match cache out-of-bounds accessAlan Wu
Previously the following read and wrote 1 byte out-of-bounds: $ valgrind ruby -e 'p /(\W+)[bx]\?/i.match? "aaaaaa aaaaaaaaa aaaa aaaaaaaa aaa aaaaxaaaaaaaaaaa aaaaa aaaaaaaaaaaa a ? aaa aaaa a ?"' 2> >(grep Invalid -A 30) Because of the `match_cache_point_index + 1` in memoize_extended_match_cache_point() and check_extended_match_cache_point(), we need one more byte of space.
2023-10-30Optimize regexp matching for look-around and atomic groups (#7931)Hiroya Fujinami
2023-07-27Add function rb_reg_onig_matchPeter Zhu
rb_reg_onig_match performs preparation, error handling, and cleanup for matching a regex against a string. This reduces repetitive code and removes the need for StringScanner to access internal data of regex. Notes: Merged: https://github.com/ruby/ruby/pull/8123
2023-06-30Don't check for null pointer in calls to freePeter Zhu
According to the C99 specification section 7.20.3.2 paragraph 2: > If ptr is a null pointer, no action occurs. So we do not need to check that the pointer is a null pointer. Notes: Merged: https://github.com/ruby/ruby/pull/8004
2023-05-22Allow the match cache optimization for atomic groups (#7804)TSUYUSATO Kitsune
Notes: Merged-By: makenowjust <[email protected]>
2023-05-13Remove warnings and errors in `regexec.c` with `ONIG_DEBUG_...` macros (#7803)TSUYUSATO Kitsune
Notes: Merged-By: makenowjust <[email protected]>
2023-05-04Delay start of the match cache optimization (#7738)TSUYUSATO Kitsune
Notes: Merged-By: makenowjust <[email protected]>
2023-04-19Refactor `Regexp#match` cache implementation (#7724)TSUYUSATO Kitsune
* Refactor Regexp#match cache implementation Improved variable and function names Fixed [Bug 19537] (Maybe fixed in https://github.com/ruby/ruby/pull/7694) * Add a comment of the glossary for "match cache" * Skip to reset match cache when no cache point on null check Notes: Merged-By: makenowjust <[email protected]>
2023-04-16Fix `PLATFORM_GET_INC`Nobuyoshi Nakada
On platforms where unaligned word access is not allowed, and if `sizeof(val)` and `sizeof(type)` differ: - `val` > `type`, `val` will be a garbage. - `val` < `type`, outside `val` will be clobbered. Notes: Merged: https://github.com/ruby/ruby/pull/7723
2023-04-12[Bug #19587] Fix `reset_match_cache` argumentsNobuyoshi Nakada
Notes: Merged: https://github.com/ruby/ruby/pull/7694
2023-04-12ConstifyNobuyoshi Nakada
Notes: Merged: https://github.com/ruby/ruby/pull/7694
2023-04-12Extract `bsearch_cache_index` functionNobuyoshi Nakada
Notes: Merged: https://github.com/ruby/ruby/pull/7694
2023-03-13[Bug #19476]: correct cache index computation for repetition (#7457)TSUYUSATO Kitsune
Notes: Merged-By: makenowjust <[email protected]>
2023-03-13[Bug #19467] correct cache points and counting failure on ↵TSUYUSATO Kitsune
`OP_ANYCHAR_STAR_PEEK_NEXT` (#7454) Notes: Merged-By: makenowjust <[email protected]>
2022-12-28Fix [Bug 19273], set correct value to `outer_repeat` on `OP_REPEAT` (#7035)TSUYUSATO Kitsune
Notes: Merged-By: makenowjust <[email protected]>
2022-12-22Adjust style [ci skip]Nobuyoshi Nakada
2022-12-14Add `Regexp.linear_time?` (#6901)TSUYUSATO Kitsune
Notes: Merged-By: makenowjust <[email protected]>
2022-12-12Make absent operator work at the end of the input stringYusuke Endoh
https://bugs.ruby-lang.org/issues/19104#change-100542 Notes: Merged: https://github.com/ruby/ruby/pull/6902
2022-11-17Add default cases for cache point finding functionTSUYUSATO Kitsune
Notes: Merged: https://github.com/ruby/ruby/pull/6744
2022-11-17Add OP_CCLASS_MB caseTSUYUSATO Kitsune
Notes: Merged: https://github.com/ruby/ruby/pull/6744
2022-11-09Reduce warningsTSUYUSATO Kitsune
2022-11-09Use long instead of intTSUYUSATO Kitsune
2022-11-09Check for integer overflow in the allocation of match_cache tableYusuke Endoh
2022-11-09Ensure that the table size for CACHE_MATCH fits with intYusuke Endoh
Currently, the keys for CACHE_MATCH are handled as an `int` type. So we should make sure the table size are smaller than the range of `int`.
2022-11-09Prevent GCC warningsYusuke Endoh
``` regexec.c: In function ‘reset_match_cache’: regexec.c:1259:56: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] 1259 | match_cache[k1 >> 3] &= ((1 << (8 - (k2 & 7) - 1)) - 1 << ((k2 & 7) + 1)) | ((1 << (k1 & 7)) - 1); | ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ regexec.c:1269:60: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] 1269 | match_cache[k2 >> 3] &= ((1 << (8 - (k2 & 7) - 1)) - 1 << ((k2 & 7) + 1)); | ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ regexec.c: In function ‘find_cache_index_table’: regexec.c:1192:11: warning: ‘m’ may be used uninitialized [-Wmaybe-uninitialized] 1192 | if (!(0 <= m && m < num_cache_table && table[m].addr == p)) { | ~~^~~~ regexec.c: In function ‘match_at’: regexec.c:1238:12: warning: ‘m1’ is used uninitialized [-Wuninitialized] 1238 | if (table[m1].addr < pbegin && m1 + 1 < num_cache_table) m1++; | ^ regexec.c:1218:39: note: ‘m1’ was declared here 1218 | int l = 0, r = num_cache_table - 1, m1, m2; | ^~ regexec.c:1239:12: warning: ‘m2’ is used uninitialized [-Wuninitialized] 1239 | if (table[m2].addr > pend && m2 - 1 > 0) m2--; | ^ regexec.c:1218:43: note: ‘m2’ was declared here 1218 | int l = 0, r = num_cache_table - 1, m1, m2; | ^~ ```
2022-11-09Return ONIGERR_MEMORY if it fails to allocate memory for cache_match_optYusuke Endoh
2022-11-09Revert "Refactor field names"TSUYUSATO Kitsune
This reverts commit 1e6673d6bbd2adbf555d82c7c0906ceb148ed6ee.
2022-11-09Refactor field namesTSUYUSATO Kitsune
2022-11-09Remove debug printfTSUYUSATO Kitsune
2022-11-09Clear cache on OP_NULL_CHECK_END_MEMSTTSUYUSATO Kitsune
2022-11-09Support OP_REPEAT and OP_REPEAT_INCTSUYUSATO Kitsune
2022-11-09Reduce warningsTSUYUSATO Kitsune
2022-11-09Fix to compile when USE_CACHE_MATCH_OPT is disabledTSUYUSATO Kitsune
2022-11-09Enable optimization for PUSH_IF/OR opcodesTSUYUSATO Kitsune
2022-11-09Enable optimization for ANYCHAR_STAR opcodesTSUYUSATO Kitsune
2022-11-09Add index to the latest NULL_CHECK_STACK for fast matchingTSUYUSATO Kitsune
2022-11-09Add static declaration to new functionsTSUYUSATO Kitsune
2022-11-09Increment num_fail on OP_POP tooTSUYUSATO Kitsune
2022-11-09Fix look-around like operators and cclassTSUYUSATO Kitsune
2022-11-09Keep cache optimization info to MatchArg for global matchingTSUYUSATO Kitsune
2022-11-09Implement cache optimization for regexp matchingTSUYUSATO Kitsune
2022-03-30re.c: Add Regexp.timeout= and Regexp.timeoutYusuke Endoh
[Feature #17837] Notes: Merged: https://github.com/ruby/ruby/pull/5703
2022-03-29Fix multiplex backreferencs near end of string in regexp matchJeremy Evans
Idea from Jirka Marsik. Fixes [Bug #18631] Notes: Merged: https://github.com/ruby/ruby/pull/5710
2022-03-24regint.h: Reduce the frequency of rb_thread_check_intsYusuke Endoh
edc8576a65b7082597d45a694434261ec3ac0d9e checks interrupt at every backtrack, which brought significant overhead. This change makes the check only once every 128 backtracks. Notes: Merged: https://github.com/ruby/ruby/pull/5697
2022-03-10Allow interrupting regexps that backtrackJeremy Evans
Fixes [Bug #14103] Co-authored-by: Nobuyoshi Nakada <[email protected]> Notes: Merged: https://github.com/ruby/ruby/pull/4960
2021-05-07Fixed shorten-64-to-32 errors when USE_COMBINATION_EXPLOSION_CHECKNobuyoshi Nakada
2019-04-24Only define history_root member of the Oniguruma re_registers struct if ↵Lourens Naudé
USE_CAPTURE_HISTORY is enabled
2018-01-02label as lvalue is a GCCismshyouhei
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61558 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-12-01re-apply r60755naruse
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60969 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-12-01Update to Onigmo 6.1.3-669ac9997619954c298da971fcfacccf36909d05.naruse
[Bug #13892] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60966 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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