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| author | Mattias Andrée <m@maandree.se> | 2026-01-25 16:09:16 +0100 |
|---|---|---|
| committer | Mattias Andrée <m@maandree.se> | 2026-01-25 16:09:16 +0100 |
| commit | 229a6ddc64392a5d07f50c3417bb3bf8acc6faa7 (patch) | |
| tree | e3147edc714fad6ede1129670a001d4832fdef13 | |
| parent | Add turned (diff) | |
| download | charconv-229a6ddc64392a5d07f50c3417bb3bf8acc6faa7.tar.gz charconv-229a6ddc64392a5d07f50c3417bb3bf8acc6faa7.tar.bz2 charconv-229a6ddc64392a5d07f50c3417bb3bf8acc6faa7.tar.xz | |
Add transposed
Signed-off-by: Mattias Andrée <m@maandree.se>
Diffstat (limited to '')
| -rw-r--r-- | Makefile | 6 | ||||
| -rw-r--r-- | convert-to-transposed.c | 4 | ||||
| -rw-r--r-- | libcharconv.h | 5 | ||||
| -rw-r--r-- | libcharconv_transposed.c | 48 |
4 files changed, 61 insertions, 2 deletions
@@ -65,7 +65,8 @@ BIN =\ convert-to-overlaid\ convert-to-joined\ convert-to-mirrored\ - convert-to-turned + convert-to-turned\ + convert-to-transposed LIBOBJ =\ libcharconv_decode_utf8_.o\ @@ -119,7 +120,8 @@ LIBOBJ =\ libcharconv_overlaid.o\ libcharconv_joined.o\ libcharconv_mirrored.o\ - libcharconv_turned.o + libcharconv_turned.o\ + libcharconv_transposed.o LOBJ = $(LIBOBJ:.o=.lo) diff --git a/convert-to-transposed.c b/convert-to-transposed.c new file mode 100644 index 0000000..ebf3451 --- /dev/null +++ b/convert-to-transposed.c @@ -0,0 +1,4 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" + +SIMPLE(libcharconv_transposed) diff --git a/libcharconv.h b/libcharconv.h index adea6e5..a3f6b21 100644 --- a/libcharconv.h +++ b/libcharconv.h @@ -353,6 +353,11 @@ LIBCHARCONV_FUNC_(libcharconv_mirrored); */ LIBCHARCONV_FUNC_(libcharconv_turned); +/** + * Transpose characters + */ +LIBCHARCONV_FUNC_(libcharconv_transposed); + #undef LIBCHARCONV_FUNC_ #endif diff --git a/libcharconv_transposed.c b/libcharconv_transposed.c new file mode 100644 index 0000000..af2a835 --- /dev/null +++ b/libcharconv_transposed.c @@ -0,0 +1,48 @@ +/* See LICENSE file for copyright and license details. */ +#include "lib-common.h" + + +enum libcharconv_result +libcharconv_transposed(const char *s, size_t slen, size_t *n, uint_least32_t *cp, size_t *ncp) +{ + uint_least32_t c; + size_t clen; + *n = 0; + while (slen) { + clen = libcharconv_decode_utf8_(s, slen, &c); + if (clen > slen) { + if (*n) + goto no_conv; + return LIBCHARCONV_INDETERMINATE; + } + if (!clen) { + *n += 1u; + slen -= 1u; + s = &s[1]; + continue; + } + + if (UINT32_C(0x1F030) <= c && c <= UINT32_C(0x1F061)) { + c += 0x32u; + goto conv; + } else if (UINT32_C(0x1F062) <= c && c <= UINT32_C(0x1F093)) { + c -= 0x32u; + goto conv; + } + + *n += clen; + s = &s[clen]; + slen -= clen; + } +no_conv: + return LIBCHARCONV_NO_CONVERT; + +conv: + if (*n) + goto no_conv; + if (*ncp) + *cp = c; + *n += clen; + *ncp = 1u; + return LIBCHARCONV_CONVERTED; +} |