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/* See LICENSE file for copyright and license details. */
#include "lib-common.h"
enum libcharconv_result
libcharconv_variation_selectors(const char *s, size_t slen, size_t *n, uint_least32_t *cp, size_t *ncp)
{
enum libcharconv_result ret = LIBCHARCONV_CONVERTED;
uint_least32_t c;
*n = 0;
for (; slen--; s++) {
if ('1' <= s[0] && s[0] <= '9') {
c = (uint_least32_t)(s[0] - '0');
if (!slen--)
goto conv_if_end;
if ('0' > s[1] || s[1] > '9')
goto conv;
c *= 10u;
c += (uint_least32_t)(s[1] - '0');
if (!slen--)
goto conv_if_end;
if ('0' > s[2] || s[2] > '9')
goto conv;
c *= 10u;
c += (uint_least32_t)(s[2] - '0');
if (c > 256u) {
c /= 10u;
goto conv;
}
goto conv;
} else {
*n += 1u;
break;
}
}
no_conv:
return LIBCHARCONV_NO_CONVERT;
conv_if_end:
ret = LIBCHARCONV_CONVERT_IF_END;
conv:
if (*n)
goto no_conv;
*n = c < 10u ? 1u : c < 100u ? 2u : 3u;
if (c < 17u)
c = UINT32_C(0xFE00) + (c - 1u);
else
c = UINT32_C(0xE0100) + (c - 17u);
if (*ncp)
*cp = c;
*ncp = 1u;
return ret;
}
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