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LibRegex: Use a match table for character classes

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Generate a sorted, compressed series of ranges in a match table for
character classes, and use a binary search to find the matches.
This is about a 3-4x speedup for character class match performance. :^)
This commit is contained in:
Ali Mohammad Pur 2021-10-03 19:01:25 +03:30 • committed by Andreas Kling
commit 8f722302d9
Notes: sideshowbarker 2024-07-18 03:08:03 +09:00
6 changed files with 232 additions and 35 deletions
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2
Userland/Libraries/LibRegex/Forward.h
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@ -9,6 +9,8 @@
#include <AK/Types.h>
namespace regex {
struct CompareTypeAndValuePair;
enum class Error : u8;
class Lexer;
class PosixExtendedParser;