diff options
Diffstat (limited to '')
| -rw-r--r-- | Makefile | 6 | ||||
| -rw-r--r-- | convert-to-crop-marks.c | 18 | ||||
| -rw-r--r-- | libcharconv.h | 32 | ||||
| -rw-r--r-- | libcharconv_crop_marks.c | 59 | ||||
| -rw-r--r-- | libcharconv_latin.c | 6 |
5 files changed, 119 insertions, 2 deletions
@@ -51,7 +51,8 @@ BIN =\ convert-to-lycian\ convert-to-domino-tiles\ convert-to-clock-faces\ - convert-to-ocr + convert-to-ocr\ + convert-to-crop-marks LIBOBJ =\ libcharconv_decode_utf8_.o\ @@ -91,7 +92,8 @@ LIBOBJ =\ libcharconv_domino_tiles_horizontal.o\ libcharconv_domino_tiles_vertical.o\ libcharconv_clock_faces.o\ - libcharconv_ocr.o + libcharconv_ocr.o\ + libcharconv_crop_marks.o LOBJ = $(LIBOBJ:.o=.lo) diff --git a/convert-to-crop-marks.c b/convert-to-crop-marks.c new file mode 100644 index 0000000..cc33009 --- /dev/null +++ b/convert-to-crop-marks.c @@ -0,0 +1,18 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" + +USAGE(""); + + +int +main(int argc, char *argv[]) +{ + ARGBEGIN { + default: + usage(); + } ARGEND; + if (argc) + usage(); + + return convert(&libcharconv_crop_marks); +} diff --git a/libcharconv.h b/libcharconv.h index f8d15c1..5b165b6 100644 --- a/libcharconv.h +++ b/libcharconv.h @@ -1246,4 +1246,36 @@ enum libcharconv_result libcharconv_clock_faces(const char *s, size_t slen, size enum libcharconv_result libcharconv_ocr(const char *s, size_t slen, size_t *n, uint_least32_t *cp, size_t *ncp); +/** + * Convert "-|", "|-", "_|", and "|_" to CROP marks + * + * @param s Text to convert + * @param slen The number of bytes available in `s` + * @param n Output parameter for the number of consumed bytes + * @param cp Output buffer for the codepoints + * @param ncp Input parameter for the number of codepoints that + * fit in `cp`, and output parameter for the number + * of output codepoints (if it exceeds the original + * value of `ncp`, a larger buffer is needed) + * @return LIBCHARCONV_NO_CONVERT: + * `*n` is the number of bytes from the beginning + * of `s` that cannot be converted + * LIBCHARCONV_CONVERTED: + * `*n` is the number of bytes from the beginning + * of `s` that was converted to a codepoint which + * is stored in `*cp` + * LIBCHARCONV_INDETERMINATE: + * If all text has been input, no more can be + * converted, otherwise more of the text most + * be made available before the function can + * determine whether the beginning of `s` can be + * converted or what it should be converted to + * LIBCHARCONV_CONVERT_IF_END: + * As LIBCHARCONV_CONVERTED the entire text has + * been input, as LIBCHARCONV_INDETERMINATE + * otherwise + */ +enum libcharconv_result libcharconv_crop_marks(const char *s, size_t slen, size_t *n, uint_least32_t *cp, size_t *ncp); + + #endif 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; +} diff --git a/libcharconv_latin.c b/libcharconv_latin.c index 68bdd7d..de5b618 100644 --- a/libcharconv_latin.c +++ b/libcharconv_latin.c @@ -496,6 +496,12 @@ libcharconv_latin(const char *s, size_t slen, size_t *n, uint_least32_t *cp, siz /* ocr (telegraphing) */ case UINT32_C(0x2BFF): c1 = 'E'; goto conv1; + /* crop marks */ + case UINT32_C(0x230C): c1 = '|'; c2 = '-'; goto conv2; + case UINT32_C(0x230D): c1 = '-'; c2 = '|'; goto conv2; + case UINT32_C(0x230E): c1 = '|'; c2 = '_'; goto conv2; + case UINT32_C(0x230F): c1 = '_'; c2 = '|'; goto conv2; + default: no_match: *n += clen; |