ref: 5c448c618a89ab8933838da1b5b97ed7c4a42e08
dir: /sys/src/ape/lib/ap/gen/strtok.c/
#include <string.h> #define N 256 char* strtok_r(char *s, const char *b, char **last) { char map[N], *os; memset(map, 0, N); while(*b) map[*(unsigned char*)b++] = 1; if(s == 0) s = *last; while(map[*(unsigned char*)s++]) ; if(*--s == 0) return 0; os = s; while(map[*(unsigned char*)s] == 0) if(*s++ == 0) { *last = s-1; return os; } *s++ = 0; *last = s; return os; } char* strtok(char *s, const char *b) { static char *under_rock; return strtok_r(s, b, &under_rock); }