diff options
Diffstat (limited to 'winsup/cygwin/path.cc')
| -rw-r--r-- | winsup/cygwin/path.cc | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc index 63a8efde8..b4903990d 100644 --- a/winsup/cygwin/path.cc +++ b/winsup/cygwin/path.cc @@ -2764,14 +2764,37 @@ cygwin_split_path (const char *path, char *dir, char *file) /********************** String Helper Functions ************************/ +static char case_folded[] = { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, + 32, '!', '"', '#', '$', '%', '&', 39, '(', ')', '*', '+', ',', '-', '.', '/', + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', ':', ';', '<', '=', '>', '?', + '@', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', + 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '[', 92, ']', '^', '_', + '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', + 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '{', '|', '}', '~', 127, + 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, + 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, + 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, + 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, + 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, + 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, + 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, + 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255 +}; + #define CHXOR ('a' ^ 'A') -#define ch_case_eq(ch1, ch2) \ +#define old_ch_case_eq(ch1, ch2) \ ({ \ unsigned char x; \ !((x = ((unsigned char)ch1 ^ (unsigned char)ch2)) && \ (x != CHXOR || !isalpha (ch1))); \ }) +// This is about 10% faster than the above logic, on average +#define ch_case_eq(ch1, ch2) (case_folded[(unsigned char)(ch1)] \ + == case_folded[(unsigned char)(ch2)]) + /* Return TRUE if two strings match up to length n */ extern "C" int __stdcall strncasematch (const char *s1, const char *s2, size_t n) |