Regex: added std::regex implementation

[firewave]

No description provided.

[firewave]

Might make sense to be able to specify the type via a rule file as well. That would also allow to mix and match the engines depending on required performance/features. Or maybe even only allow it via a file so to not add another CLI option and not having to deal with the left-to-right issues.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[firewave]

This will only add the additional engine. I will also do some performance tests.

The follow-up steps are:

• implement PCRE2 as an additional engine and make it optional via a new build flag
• make std::regex the default and deprecate HAVE_RULES and PCRE1 so the feature works without any build dependencies
• remove HAVE_RULES and PCRE1 shortly after (most distros have already dropped the dependency since the library has long been EOL)

[danmar]

thanks for working on this. 👍

[firewave]

Might make sense to be able to specify the type via a rule file as well. That would also allow to mix and match the engines depending on required performance/features. Or maybe even only allow it via a file so to not add another CLI option and not having to deal with the left-to-right issues.

@danmar any comment on this?