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       tstrsep.c - iomenu - interactive terminal-based selection menu
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       ---
       tstrsep.c (308B)
       ---
            1 #include <string.h>
            2 
            3 #include "compat.h"
            4 
            5 char *
            6 strsep(char **str_p, char const *sep)
            7 {
            8         char *s, *prev;
            9 
           10         if (*str_p == NULL)
           11                 return NULL;
           12 
           13         for (s = prev = *str_p; strchr(sep, *s) == NULL; s++)
           14                 continue;
           15 
           16         if (*s == '\0') {
           17                 *str_p = NULL;
           18         } else {
           19                 *s = '\0';
           20                 *str_p = s + 1;
           21         }
           22         return prev;
           23 }