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refactor(multibyte): neo-casefolding without allocation

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fixes #30400
This commit is contained in:
bfredl
2024-09-16 19:28:37 +02:00
parent 69553f7bf5
commit 2dfa6f6033
2 changed files with 9 additions and 14 deletions
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17
src/nvim/mbyte.c
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@@ -1379,22 +1379,11 @@ int utf_fold(int a)
return a;
}
utf8proc_uint8_t input_str[16] = { 0 };
if (utf8proc_encode_char(a, input_str) <= 0) {
return a;
}
utf8proc_int32_t result[1];
utf8proc_uint8_t *fold_str_utf;
if (utf8proc_map((utf8proc_uint8_t *)input_str, 0, &fold_str_utf,
UTF8PROC_NULLTERM | UTF8PROC_CASEFOLD) < 0) {
return a;
}
utf8proc_ssize_t res = utf8proc_decompose_char(a, result, 1, UTF8PROC_CASEFOLD, NULL);
int fold_codepoint_utf = utf_ptr2char((char *)fold_str_utf);
xfree(fold_str_utf);
return fold_codepoint_utf;
return (res == 1) ? result[0] : a;
}
// Vim's own character class functions. These exist because many library