Alternation match regression #2884
Description
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- I have a different issue.
What version of ripgrep are you using?
14.1.0
How did you install ripgrep?
Cargo
What operating system are you using ripgrep on?
Fedora 40
Describe your bug.
ripgrep fails to return some matches when case is ignored. This only happens with very particular matches and specific characters.
A git bisect seems to suggest this is a regression introduced by
ca740d9.
What are the steps to reproduce the behavior?
Run the following:
echo -n "e-x" | rg -i "e.x|ex"
What is the actual behavior?
$ echo -n "e-x" | rg --debug -i "e.x|ex"
rg: DEBUG|rg::flags::config|/home/ido/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ripgrep-14.1.0/crates/core/flags/config.rs:41: /home/ido/.ripgreprc: arguments loaded from config file: []
rg: DEBUG|rg::flags::parse|/home/ido/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ripgrep-14.1.0/crates/core/flags/parse.rs:97: no extra arguments found from configuration file
rg: DEBUG|rg::flags::hiargs|/home/ido/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ripgrep-14.1.0/crates/core/flags/hiargs.rs:1099: using heuristics to determine whether to read from stdin or search ./ (is_readable_stdin=true, stdin_consumed=false, mode=Search(Standard))
rg: DEBUG|rg::flags::hiargs|/home/ido/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ripgrep-14.1.0/crates/core/flags/hiargs.rs:1112: heuristic chose to search stdin
rg: DEBUG|rg::flags::hiargs|/home/ido/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ripgrep-14.1.0/crates/core/flags/hiargs.rs:1260: found hostname for hyperlink configuration: sourcerer
rg: DEBUG|rg::flags::hiargs|/home/ido/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ripgrep-14.1.0/crates/core/flags/hiargs.rs:1270: hyperlink format: ""
rg: DEBUG|rg::flags::hiargs|/home/ido/.cargo/registry/src/index.crates.io-6f17d22bba15001f/ripgrep-14.1.0/crates/core/flags/hiargs.rs:174: using 1 thread(s)
rg: DEBUG|grep_regex::literal|/home/ido/.cargo/registry/src/index.crates.io-6f17d22bba15001f/grep-regex-0.1.12/src/literal.rs:117: extracted fast line regex: "(?:(?:EX)|(?:Ex)|(?:eX)|(?:ex))"
rg: DEBUG|globset|/home/ido/.cargo/registry/src/index.crates.io-6f17d22bba15001f/globset-0.4.14/src/lib.rs:453: built glob set; 0 literals, 0 basenames, 12 extensions, 0 prefixes, 0 suffixes, 0 required extensions, 0 regexes
$
What is the expected behavior?
ripgrep should have returned e-x instead of returning no matches.
The same occurs when e is replaced with k, s, or t, but doesn't with any other alphabetic character, or if case isn't ignored.