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fast-path for string matching

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This commit is contained in:
Nikita Smith
2024-10-28 09:30:57 -07:00
parent baead67a99
commit ee65ea3692
1 changed files with 19 additions and 9 deletions
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src/base/base_strings.c
+19 -9
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@@ -274,31 +274,41 @@ backslashed_from_str8(Arena *arena, String8 string)
//~ rjf: String Matching
internal B32
str8_match(String8 a, String8 b, StringMatchFlags flags){
str8_match(String8 a, String8 b, StringMatchFlags flags)
{
B32 result = 0;
if (a.size == b.size || (flags & StringMatchFlag_RightSideSloppy)){
B32 case_insensitive = (flags & StringMatchFlag_CaseInsensitive);
if(a.size == b.size && flags == 0)
{
result = MemoryMatch(a.str, b.str, b.size);
}
else if(a.size == b.size || (flags & StringMatchFlag_RightSideSloppy))
{
B32 case_insensitive = (flags & StringMatchFlag_CaseInsensitive);
B32 slash_insensitive = (flags & StringMatchFlag_SlashInsensitive);
U64 size = Min(a.size, b.size);
U64 size = Min(a.size, b.size);
result = 1;
for (U64 i = 0; i < size; i += 1){
for(U64 i = 0; i < size; i += 1)
{
U8 at = a.str[i];
U8 bt = b.str[i];
if (case_insensitive){
if(case_insensitive)
{
at = char_to_upper(at);
bt = char_to_upper(bt);
}
if (slash_insensitive){
if(slash_insensitive)
{
at = char_to_correct_slash(at);
bt = char_to_correct_slash(bt);
}
if (at != bt){
if(at != bt)
{
result = 0;
break;
}
}
}
return(result);
return result;
}
internal U64