From ce4e00037288939d9757cd29e28de82f8d92db76 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Sat, 24 Jan 2026 23:59:59 +0100 Subject: Add crop marks MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- libcharconv_crop_marks.c | 59 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 libcharconv_crop_marks.c (limited to 'libcharconv_crop_marks.c') diff --git a/libcharconv_crop_marks.c b/libcharconv_crop_marks.c new file mode 100644 index 0000000..81d3aa1 --- /dev/null +++ b/libcharconv_crop_marks.c @@ -0,0 +1,59 @@ +/* See LICENSE file for copyright and license details. */ +#include "lib-common.h" + + +enum libcharconv_result +libcharconv_crop_marks(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[0] == '|') { + if (!slen) + goto indeterminate; + if (s[1] == '-') + c = UINT32_C(0x230C); + else if (s[1] == '_') + c = UINT32_C(0x230E); + else + goto no_conv; + goto conv; + } else if (s[0] == '-') { + if (!slen) + goto indeterminate; + if (s[1] != '|') + goto no_conv; + c = UINT32_C(0x230D); + goto conv; + } else if (s[0] == '_') { + if (!slen) + goto indeterminate; + if (s[1] != '|') + goto no_conv; + c = UINT32_C(0x230F); + goto conv; + } else { + *n += 1u; + } + } + return LIBCHARCONV_NO_CONVERT; + +no_conv: + if (!*n) + *n = 1u; + return LIBCHARCONV_NO_CONVERT; + +indeterminate: + if (*n) + goto no_conv; + return LIBCHARCONV_INDETERMINATE; + +conv: + if (*n) + goto no_conv; + if (*ncp) + *cp = c; + *n += 2u; + *ncp = 1u; + return LIBCHARCONV_CONVERTED; +} -- cgit v1.2.3-70-g09d2