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2026-08-17refactor(preg): drop unused args of preg_match_all_offset_capture2()nsfisis
The sole caller, Preg::match_all_with_offsets5(), always passed flags=0 and offset=0, so PREG_UNMATCHED_AS_NULL is now unconditional and the subject is scanned from the beginning. That method is only reached from Preg::match_all_with_offsets(), so it is no longer public either. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-17refactor(preg): drop unused flags and offset of preg_match_all2()nsfisis
Every caller reached preg_match_all2() through Preg::match_all5(), which always passed flags = PREG_UNMATCHED_AS_NULL and offset = 0. Inline those constants and make match_all5() private, since the two public wrappers are its only callers. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-16refactor(preg): make preg_grep() return an iteratornsfisis
Callers had to build a temporary Vec<&str> at every call site to satisfy the &[&str] parameter. Taking IntoIterator and yielding the matched items lets them pass owned or borrowed strings directly. The flags variant and PREG_GREP_INVERT go away with it: no caller passes flags, and Composer's Preg::grep() has no such parameter either.
2026-08-16refactor(preg): import preg_*() instead of qualifying themnsfisis
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-16refactor(preg): merge preg_replace_callback2 into preg_replace_callbacknsfisis
preg_replace_callback2 had one caller, Preg::replace_callback6, which was itself reached only from Preg::replace_callback with the default limit, count and flags. Fold the two shim functions into one and drop those parameters along with replace_callback6. The surviving callback takes callback2's IndexMap of matches: it can be keyed by group name, and it omits trailing non-participating groups the way PHP does, which is what the callbacks in Process and ProgressBar test for.
2026-08-09refactor(pcre): extract composer/pcre into the shirabe-pcre cratensfisis
Move `Composer\Pcre` out of shirabe-external-packages and into its own crate, so the path is `shirabe_pcre::preg::Preg` instead of `shirabe_external_packages::composer::pcre::preg::Preg`. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>