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0473df1ef5
When ripgrep detects a literal, it emits them as raw hex escaped byte sequences to Regex::new. This permits literal optimizations for arbitrary byte sequences (i.e., possibly invalid UTF-8). The problem is that Regex::new interprets hex escaped byte sequences as *Unicode codepoints* by default, but we want them to actually stand for their raw byte values. Therefore, disable Unicode mode. This is OK, since the regex is composed entirely of literals and literal extraction does Unicode case folding. Fixes #251
grep
This is a library that provides grep-style line-by-line regex searching (with
comparable performance to grep itself).