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Optimize rune_is_* procedures for tokenizer

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gingerBill
2020-05-27 12:43:49 +01:00
parent 6ac0fb80a6
commit 4e21a4d46a
2 changed files with 6 additions and 4 deletions
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4
src/unicode.cpp
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@@ -12,7 +12,7 @@ bool rune_is_letter(Rune r) {
if (r == '_') {
return true;
}
return gb_char_is_alpha(cast(char)r) != 0;
return ((cast(u32)r | 0x20) - 0x61) < 26;
}
switch (utf8proc_category(r)) {
case UTF8PROC_CATEGORY_LU:
@@ -27,7 +27,7 @@ bool rune_is_letter(Rune r) {
bool rune_is_digit(Rune r) {
if (r < 0x80) {
return gb_is_between(r, '0', '9');
return (cast(u32)r - '0') < 10;
}
return utf8proc_category(r) == UTF8PROC_CATEGORY_ND;
}