ustrpbrk (3) - Linux Manuals
ustrpbrk: Finds the first character that matches any in a set. Allegro game programming library.
NAME
ustrpbrk - Finds the first character that matches any in a set. Allegro game programming library.SYNOPSIS
#include <allegro.h>
char *ustrpbrk(const char *s, const char *set);
DESCRIPTION
This function finds the first character in `s' that matches any character in `set'. Example:
char *p = ustrpbrk("one,two-three.four", "-. ");