diff options
Diffstat (limited to 'crates/regex/src/literal.rs')
| -rw-r--r-- | crates/regex/src/literal.rs | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/crates/regex/src/literal.rs b/crates/regex/src/literal.rs index 831b82cb..e2f158b6 100644 --- a/crates/regex/src/literal.rs +++ b/crates/regex/src/literal.rs @@ -65,12 +65,19 @@ impl InnerLiterals { // If we believe the regex is already accelerated, then just let // the regex engine do its thing. We'll skip the inner literal // optimization. + // + // ... but only if the regex doesn't have any Unicode word boundaries. + // If it does, there's enough of a chance of the regex engine falling + // back to a slower engine that it's worth trying our own inner literal + // optimization. if re.is_accelerated() { - log::trace!( - "skipping inner literal extraction, \ - existing regex is believed to already be accelerated", - ); - return InnerLiterals::none(); + if !chir.hir().properties().look_set().contains_word_unicode() { + log::trace!( + "skipping inner literal extraction, \ + existing regex is believed to already be accelerated", + ); + return InnerLiterals::none(); + } } // In this case, we pretty much know that the regex engine will handle // it as best as possible, even if it isn't reported as accelerated. |