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/* See LICENSE file for copyright and license details. */
#include "lib-common.h"
enum libcharconv_result
libcharconv_mayan(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++) {
if (*s == '1') {
if (!slen) {
c = UINT32_C(0x1D2E0) + (unsigned)(*s - '0');
goto conv_if_end;
}
if ('0' > s[1] || s[1] > '9')
goto one;
c = UINT32_C(0x1D2E0) + (unsigned)(s[0] - '0') * 10u + (unsigned)(s[1] - '0');
goto conv2;
} else if ('0' <= *s && *s <= '9') {
one:
c = UINT32_C(0x1D2E0) + (unsigned)(*s - '0');
goto conv1;
} else {
*n += 1u;
}
}
no_conv:
return LIBCHARCONV_NO_CONVERT;
conv_if_end:
if (*n)
goto no_conv;
if (*ncp)
*cp = c;
*n += 1u;
*ncp = 1u;
return LIBCHARCONV_CONVERT_IF_END;
conv1:
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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