Initial release.
match_pattern and filterPathname, Noescape, Period (POSIX); Casefold, Globstar (extensions)? matches one Unicode codepoint; ranges operate on codepointsCasefold is ASCII-only (A–Z); bracket range validation uses raw (unfolded) endpointsGlobstar recognises ** only at path-component boundaries; trailing ** requires at least one name componentError of { kind; pattern; offset }Unsupported_bracket_syntax for collating elements and equivalence classes