diff options
Diffstat (limited to 'src/u8c/isxdigit.c')
| -rw-r--r-- | src/u8c/isxdigit.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/u8c/isxdigit.c b/src/u8c/isxdigit.c new file mode 100644 index 0000000..ae12ae3 --- /dev/null +++ b/src/u8c/isxdigit.c @@ -0,0 +1,47 @@ +/* + Copyright 2021 Gabriel Jensen + + This file is part of u8c. + + u8c is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. + + u8c is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + + See the GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License along with u8c. + + If not, see <https://www.gnu.org/licenses/>. +*/ +# include <assert.h> +# include <stdbool.h> +# include <stddef.h> +# include <stdint.h> +# include <u8c/isxdigit.h> +bool u8c_isxdigit(uint_least8_t * const _res,char32_t const _chr) { + assert(_res != NULL); + switch(_chr) { + default: + *_res = UINT8_C(0x0); + break; + case UINT32_C(0x30): /* DIGIT ZERO */ + case UINT32_C(0x31): /* DIGIT ONE */ + case UINT32_C(0x32): /* DIGIT TWO */ + case UINT32_C(0x33): /* DIGIT THREE */ + case UINT32_C(0x34): /* DIGIT FOUR */ + case UINT32_C(0x35): /* DIGIT FIVE */ + case UINT32_C(0x36): /* DIGIT SIX */ + case UINT32_C(0x37): /* DIGIT SEVEN */ + case UINT32_C(0x38): /* DIGIT EIGHT */ + case UINT32_C(0x39): /* DIGIT NINE */ + case UINT32_C(0x41): /* LATIN CAPITAL LETTER A */ + case UINT32_C(0x42): /* LATIN CAPITAL LETTER B */ + case UINT32_C(0x43): /* LATIN CAPITAL LETTER C */ + case UINT32_C(0x44): /* LATIN CAPITAL LETTER D */ + case UINT32_C(0x45): /* LATIN CAPITAL LETTER E */ + case UINT32_C(0x46): /* LATIN CAPITAL LETTER F */ + *_res = UINT8_C(0x1); + break; + } + return false; +} |