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/* See LICENSE file for copyright and license details. */
#include "lib-common.h"
enum libcharconv_result
libcharconv_metrical(const char *s, size_t slen, size_t *n, uint_least32_t *cp, size_t *ncp)
{
uint_least32_t c;
*n = 0;
for (; slen--; s++) {
switch (*s) {
case '1': c = UINT32_C(0x23D1); goto conv;
case '2': c = UINT32_C(0x23D6); goto conv;
case '3': c = UINT32_C(0x23D7); goto conv;
case '4': c = UINT32_C(0x23D8); goto conv;
case '5': c = UINT32_C(0x23D9); goto conv;
case '-':
case '_':
if (!slen)
return LIBCHARCONV_INDETERMINATE;
if (s[1] != '1' && s[1] != '2')
goto no_match;
c = UINT32_C(0x23D2) + (s[0] == '_' ? 1u : 0u) + (s[1] == '2' ? 2u : 0u);
goto conv2;
default:
no_match:
*n += 1u;
break;
}
}
no_conv:
return LIBCHARCONV_NO_CONVERT;
conv:
if (*n)
goto no_conv;
if (*ncp)
*cp = c;
*n += 1u;
*ncp = 1u;
return LIBCHARCONV_CONVERTED;
conv2:
if (*n)
goto no_conv;
if (*ncp)
*cp = c;
*n += 2u;
*ncp = 1u;
return LIBCHARCONV_CONVERTED;
}
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