From 80350b43c77a7835546a8c29e0d93eeb3cddfadd Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Sat, 24 Jan 2026 21:10:12 +0100 Subject: Add superscript and subscript (so far only with digits) and lycian and lydian MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- libcharconv_superscript.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 libcharconv_superscript.c (limited to 'libcharconv_superscript.c') diff --git a/libcharconv_superscript.c b/libcharconv_superscript.c new file mode 100644 index 0000000..d15f490 --- /dev/null +++ b/libcharconv_superscript.c @@ -0,0 +1,34 @@ +/* See LICENSE file for copyright and license details. */ +#include "lib-common.h" + + +enum libcharconv_result +libcharconv_superscript(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') { + c = (uint_least32_t)UINT32_C(0x00B9); + } else if ('2' <= *s && *s <= '3') { + c = (uint_least32_t)(UINT32_C(0x00B2) + (unsigned)(*s - '2')); + } else if ('0' <= *s && *s <= '9') { + c = (uint_least32_t)(UINT32_C(0x2070) + (unsigned)(*s - '0')); + } else { + *n += 1u; + continue; + } + goto conv; + } +no_conv: + return LIBCHARCONV_NO_CONVERT; + +conv: + if (*n) + goto no_conv; + if (*ncp) + *cp = c; + *n += 1u; + *ncp = 1u; + return LIBCHARCONV_CONVERTED; +} -- cgit v1.2.3-70-g09d2