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9f15e3b671
When looking for an inner literal to speed up searches, if only a prefix is found, then we generally give up doing inner literal optimizations since the regex engine will generally handle it for us. Unfortunately, this decision was being made *before* we wrap the regex in (^|\W)...($|\W) when using the -w/--word-regexp flag, which would then defeat the literal optimizations inside the regex engine. We fix this with a bit of a hack that says, "if we're doing a word regexp, then give me back any literal you find, even if it's a prefix."
grep-regex
The grep-regex crate provides an implementation of the Matcher trait from
the grep-matcher crate. This implementation permits Rust's regex engine to
be used in the grep crate for fast line oriented searching.
Dual-licensed under MIT or the UNLICENSE.
Documentation
NOTE: You probably don't want to use this crate directly. Instead, you
should prefer the facade defined in the
grep
crate.
Usage
Add this to your Cargo.toml:
[dependencies]
grep-regex = "0.1"
and this to your crate root:
extern crate grep_regex;