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8 Commits

Author SHA1 Message Date
Yukihiro "Matz" Matsumoto 4d81275083 mruby-regexp: add $1-$9 globals and include in stdlib gembox 
- $1-$9 global variables set by Regexp#match and Regexp#=~
- $1-$9 cleared to nil on match failure
- add mruby-regexp to stdlib.gembox (auto-included in standard builds)
- remove duplicate gem entry from host-debug.rb

Co-authored-by: Claude <noreply@anthropic.com>
 2026-04-23 19:25:29 +09:00
Yukihiro "Matz" Matsumoto 1cfa153ff3 mruby-regexp: add built-in regexp engine with Pike VM 
implement a lightweight NFA-based regular expression engine for mruby:

engine (src/re_compile.c, src/re_exec.c, src/re_utf8.c):
- Pike VM (Thompson NFA simulation) with O(n*m) time guarantee
- ReDoS-resistant by design (no backtracking for basic patterns)
- supports: literals, ., *, +, ?, {n,m}, [], [^], |, ()
- character classes: \d, \w, \s and negations
- anchors: ^, $, \A, \z, \Z, \b, \B
- flags: i (ignorecase), m (multiline/dotall)
- captures with MatchData

Ruby API (src/regexp.c, mrblib/string_regexp.rb):
- Regexp.new, #match, #match?, #=~, #===, #source, #inspect
- Regexp.escape, Regexp::IGNORECASE/MULTILINE constants
- MatchData#[], #captures, #to_a, #begin, #end, #pre_match, #post_match
- String#match, #match?, #=~, #sub, #gsub, #scan, #split

~1700 lines of C + ~120 lines of Ruby. no external dependencies.

Co-authored-by: Claude <noreply@anthropic.com>
 2026-04-23 19:25:27 +09:00
Yukihiro "Matz" Matsumoto 583214f452 build_config: remove MRB_UTF8_STRING from full-core configurations 
- host-debug
- ci/gcc-clang

Since it is automatically turned on by mruby-encoding.
 2025-01-16 09:18:14 +09:00
Yukihiro "Matz" Matsumoto 16cc6f3292 build_config/host-debug.rb: enable MRB_UTF8_STRING; ref #5727 2022-06-24 13:25:46 +09:00
KOBAYASHI Shuji 0396f3f0fd Guess toolchain when MRuby::Build#toolchain argument is omitted 2020-12-16 19:17:44 +09:00
Yukihiro "Matz" Matsumoto fba7874a68 Replace mere enable_debug by clearer conf.enable_debug [ci skip] 2020-11-25 21:42:10 +09:00
KOBAYASHI Shuji 3d056d084a Rename MRB_{ENABLE,DISABLE}_ to MRB_{USE,NO}_; close #5163 
|        Previous Name         |        New Name         |
|------------------------------|-------------------------|
| MRB_ENABLE_ALL_SYMBOLS       | MRB_USE_ALL_SYMBOLS     |
| MRB_ENABLE_SYMBOLL_ALL       | MRB_USE_ALL_SYMBOLS     |
| MRB_ENABLE_CXX_ABI           | MRB_USE_CXX_ABI         |
| MRB_ENABLE_CXX_EXCEPTION     | MRB_USE_CXX_EXCEPTION   |
| MRB_ENABLE_DEBUG_HOOK        | MRB_USE_DEBUG_HOOK      |
| MRB_DISABLE_DIRECT_THREADING | MRB_NO_DIRECT_THREADING |
| MRB_DISABLE_STDIO            | MRB_NO_STDIO            |
| ENABLE_LINENOISE             | MRB_USE_LINENOISE       |
| ENABLE_READLINE              | MRB_USE_READLINE        |
| DISABLE_MIRB_UNDERSCORE      | MRB_NO_MIRB_UNDERSCORE  |
| DISABLE_GEMS                 | MRB_NO_GEMS             |

* `MRB_ENABLE_SYMBOLL_ALL` seems to be a typo, so it is fixed.
* `MRB_` prefix is added to those without.
* The previous names can also be used for compatibility.
 2020-11-21 21:14:40 +09:00
KOBAYASHI Shuji 81c2108819 Revert MRUBY_TARGET mechanism; ref #5096 
* In explanation of mruby, the expression `build_config.rb` is frequently
  used including official documents, so I think that it will not make sense
  if the file is no longer used.
* The `MRUBY_TARGET` mechanism seems to have little improvement, so I don't
  think it should be changed to avoid unnecessary confusion.
* `MRUBY_TARGET` and `MRuby.targets` represent somewhat different things,
  so using the same term "target" is a bit confusing.

The mechanism that can be written short when using a file under
`build_config` (renamed from `target`) directory remains
(`build_config/${MRUBY_CONFIG}.rb` is used if the path specified
in `MRUBY_CONFIG` doesn't exist).
 2020-10-19 15:03:22 +09:00