2 Commits

Author	SHA1	Message	Date
Yukihiro "Matz" Matsumoto	3bfb27b999	mruby-regexp: add /regex/ literal support, $~, Regexp.compile ... - /regex/ literal syntax now works (compiler generates Regexp.compile) - Regexp#match and Regexp#=~ set $~ global variable - Regexp.last_match(n) for accessing capture groups - Regexp.compile as alias for Regexp.new - Regexp#options Co-authored-by: Claude <noreply@anthropic.com>	2026-04-23 19:25:27 +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