pcre2 incorrectly parses [.][^.]*$.

[fragmede]

Hi,

pcre2 incorrectly parses [.][^.]*$.

When I use ag, which uses pcre2, vs ripgrep, which uses rust's implementation of regexp, I get:

fragmede@samairmac:~/projects/ag_bug$ find . | ag -o  [.][^.]*$ | sort -u  | tail -3
./the_silver_searcher/tests/word_regexp.t
./the_silver_searcher/the_silver_searcher.spec
./the_silver_searcher/the_silver_searcher.spec.in
fragmede@samairmac:~/projects/ag_bug$ find . | rg -o  [.][^.]*$ | sort -u  | tail -3
.w32
.yml
.zig
fragmede@samairmac:~/projects/ag_bug$

[BurntSushi]

Looks like it could be an ag bug? If you tell ripgrep to use PCRE2, then it gets the same result:

$ git remote -v
origin  git@github.com:ggreer/the_silver_searcher (fetch)
origin  git@github.com:ggreer/the_silver_searcher (push)
$ git rev-parse HEAD
a61f1780b64266587e7bc30f0f5f71c6cca97c0f
$ find . | rg -P -o [.][^.]*$ | sort -u | tail -3
.txt
.w32
.yml

Note also that ag uses PCRE, not PCRE2. ripgrep uses PCRE2.

[fragmede]

Ah thanks. Got confused tracking down dependencies. I'll file it with ag directly.

[PhilipHazel]

Closing this issue as not a bug.