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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;
}
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