Documentation refactoring. No code changes. (0.40.5)

web/documentation/external/pcre2.md

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----
-layout: page
-published: true
-noToc: false
-noComments: false
-noDate: false
-title: Fun - PCRE2 (Perl-Compatible Regex) extension (optional)
-subtitle: Documentation for PCRE2 (Perl-Compatible Regex) extension (optional)
-description: Documentation for PCRE2 (Perl-Compatible Regex) extension (optional)
-permalink: /documentation/external/pcre2/
-lang: en
-tags:
-- compatible
-- extension
-- optional
-- pcre2
-- perl
-- regex
----
-
-
-- CMake option: FUN_WITH_PCRE2=ON
-- Purpose: Advanced regular expressions via PCRE2.
-- Homepage: https://www.pcre.org/
-
-## Opcodes:
-
-- OP_PCRE2_TEST: pops flags, text, pattern; pushes 1/0
-- OP_PCRE2_MATCH: pops flags, text, pattern; pushes match map or Nil
-- OP_PCRE2_FINDALL: pops flags, text, pattern; pushes array of match maps
-
-## Notes:
-
-- Requires PCRE2 development headers/libs.
-- Flags are backend-specific; see implementation for supported bits.