| /* | |
| * strpbrk | |
| */ | |
| #include <string.h> | |
| #include <stddef.h> | |
| #include <inttypes.h> | |
| #include <limits.h> | |
| #include "strxspn.h" | |
| size_t __strxspn(const char *s, const char *map, int parity) | |
| { | |
| char matchmap[UCHAR_MAX + 1]; | |
| size_t n = 0; | |
| /* Create bitmap */ | |
| memset(matchmap, 0, sizeof matchmap); | |
| while (*map) | |
| matchmap[(unsigned char)*map++] = 1; | |
| /* Make sure the null character never matches */ | |
| matchmap[0] = parity; | |
| /* Calculate span length */ | |
| while (matchmap[(unsigned char)*s++] ^ parity) | |
| n++; | |
| return n; | |
| } |