PCRE is a widely used Unicode-compatible regular expression engine. It implements Perl5 regex syntax and semantics, some Python, .NET and Onigurama extensions. It uses just-in-time compilation, has consistent escaping rules, and allows for recursion, assertions and conditional patterns or complex subroutines and callouts, thus goes far beyond classic regular expressions.
minor feature: tidies, and a few new enhancements. 1. Capturing groups that contain recursive backreferences to themselves are no. Longer automatically atomic, because the restriction is no longer necessary as a result of the 10.30 restructuring. 2. Several new options for pcre2_substitute(). 3. When Unicode is supported and PCRE2_UCP is set without PCRE2_UTF, Unicode. Character properties are used for upper/lower case computations on characters Whose code points are greater than 127. 4. The character tables (for low-valued characters) can now more easily be. Saved and restored in binary. 5. Updated to Unicode 13.0.0.