vendor/librune/lib/utf8/u8cspn.c


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#include "utf8.h"

size_t
u8cspn(const char8_t *s, size_t n, const rune *p, size_t m)
{
	rune ch;
	size_t k = 0;

	while (u8next(&ch, &s, &n)) {
		for (size_t i = 0; i < m; i++) {
			if (p[i] == ch)
				goto found;
		}

		k++;
	}

found:
	return k;
}