Quoting Martin Renold (2020-03-14 11:36:08) > I'd also like PCRE2 to be enabled. Stumbled over it because emacs/ivy's code > search used the "--pcre2" switch without checking whether it was available. > > Upstream provides .deb packages that have it enabled, statically linked it > seems: > https://github.com/BurntSushi/ripgrep/blob/master/ci/build_deb.sh#L41-L43 > > When building manually I had to use 'cargo build --features pcre2 --release' > > Quote README: > * ripgrep has optional support for switching its regex engine to use PCRE2. > Among other things, this makes it possible to use look-around and > backreferences in your patterns, which are not supported in ripgrep's > default > regex engine. PCRE2 support can be enabled with `-P/--pcre2` (use PCRE2 > always) or `--auto-hybrid-regex` (use PCRE2 only if needed).
I don't know ripgrep specifically, but from my work on licensecheck it is my experience that RE2 engine is quite powerful compared to PCRE2, so reading above I recommend to try "--auto-hybrid-regex" before "--pcre2" (and report as a bug if "--auto-hybrid-regex" fails. If those options are runtime options both available when ripgrep is built with pcre2 support, then I sugges to encourage reverse dependencies that hardcode "--pcre2" to try patch the code to instead use "--auto-hybrid-regex". - Jonas -- * Jonas Smedegaard - idealist & Internet-arkitekt * Tlf.: +45 40843136 Website: http://dr.jones.dk/ [x] quote me freely [ ] ask before reusing [ ] keep private
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