~mdw / dpkg / blame
| Commit | Line | Data |
|---|---|---|
| 1479465f GJ |
1 | /* |
| 2 | * libdpkg - Debian packaging suite library routines | |
| 3 | * c-ctype.h - ASCII C locale-only functions | |
| 4 | * | |
| 5 | * Copyright © 2009-2014 Guillem Jover <guillem@debian.org> | |
| 6 | * | |
| 7 | * This is free software; you can redistribute it and/or modify | |
| 8 | * it under the terms of the GNU General Public License as published by | |
| 9 | * the Free Software Foundation; either version 2 of the License, or | |
| 10 | * (at your option) any later version. | |
| 11 | * | |
| 12 | * This is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | * GNU General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License | |
| 18 | * along with this program. If not, see <https://www.gnu.org/licenses/>. | |
| 19 | */ | |
| 20 | ||
| 21 | #ifndef LIBDPKG_C_CTYPE_H | |
| 22 | #define LIBDPKG_C_CTYPE_H | |
| 23 | ||
| 24 | #include <stdbool.h> | |
| 25 | ||
| 26 | #include <dpkg/macros.h> | |
| 27 | ||
| 28 | DPKG_BEGIN_DECLS | |
| 29 | ||
| 30 | #define C_CTYPE_BIT(bit) (1 << (bit)) | |
| 31 | ||
| 32 | enum c_ctype_bit { | |
| 33 | C_CTYPE_BLANK = C_CTYPE_BIT(0), | |
| 34 | C_CTYPE_WHITE = C_CTYPE_BIT(1), | |
| 35 | C_CTYPE_SPACE = C_CTYPE_BIT(2), | |
| 36 | C_CTYPE_UPPER = C_CTYPE_BIT(3), | |
| 37 | C_CTYPE_LOWER = C_CTYPE_BIT(4), | |
| 38 | C_CTYPE_DIGIT = C_CTYPE_BIT(5), | |
| 39 | ||
| 40 | C_CTYPE_ALPHA = C_CTYPE_UPPER | C_CTYPE_LOWER, | |
| 41 | C_CTYPE_ALNUM = C_CTYPE_ALPHA | C_CTYPE_DIGIT, | |
| 42 | }; | |
| 43 | ||
| 44 | bool | |
| 45 | c_isbits(int c, enum c_ctype_bit bits); | |
| 46 | ||
| 47 | /** | |
| 48 | * Check if the character is [ \t]. | |
| 49 | */ | |
| 50 | static inline bool | |
| 51 | c_isblank(int c) | |
| 52 | { | |
| 53 | return c_isbits(c, C_CTYPE_BLANK); | |
| 54 | } | |
| 55 | ||
| 56 | /** | |
| 57 | * Check if the character is [ \t\n]. | |
| 58 | */ | |
| 59 | static inline bool | |
| 60 | c_iswhite(int c) | |
| 61 | { | |
| 62 | return c_isbits(c, C_CTYPE_WHITE); | |
| 63 | } | |
| 64 | ||
| 65 | /** | |
| 66 | * Check if the character is [ \v\t\f\r\n]. | |
| 67 | */ | |
| 68 | static inline bool | |
| 69 | c_isspace(int c) | |
| 70 | { | |
| 71 | return c_isbits(c, C_CTYPE_SPACE); | |
| 72 | } | |
| 73 | ||
| 74 | /** | |
| 75 | * Check if the character is [0-9]. | |
| 76 | */ | |
| 77 | static inline bool | |
| 78 | c_isdigit(int c) | |
| 79 | { | |
| 80 | return c_isbits(c, C_CTYPE_DIGIT); | |
| 81 | } | |
| 82 | ||
| 83 | /** | |
| 84 | * Check if the character is [A-Z]. | |
| 85 | */ | |
| 86 | static inline bool | |
| 87 | c_isupper(int c) | |
| 88 | { | |
| 89 | return c_isbits(c, C_CTYPE_UPPER); | |
| 90 | } | |
| 91 | ||
| 92 | /** | |
| 93 | * Check if the character is [a-z]. | |
| 94 | */ | |
| 95 | static inline bool | |
| 96 | c_islower(int c) | |
| 97 | { | |
| 98 | return c_isbits(c, C_CTYPE_LOWER); | |
| 99 | } | |
| 100 | ||
| 101 | /** | |
| 102 | * Check if the character is [a-zA-Z]. | |
| 103 | */ | |
| 104 | static inline bool | |
| 105 | c_isalpha(int c) | |
| 106 | { | |
| 107 | return c_isbits(c, C_CTYPE_ALPHA); | |
| 108 | } | |
| 109 | ||
| 110 | /** | |
| 111 | * Check if the character is [a-zA-Z0-9]. | |
| 112 | */ | |
| 113 | static inline bool | |
| 114 | c_isalnum(int c) | |
| 115 | { | |
| 116 | return c_isbits(c, C_CTYPE_ALNUM); | |
| 117 | } | |
| 118 | ||
| 119 | /** | |
| 120 | * Maps the character to its lower-case form. | |
| 121 | */ | |
| 122 | static inline int | |
| 123 | c_tolower(int c) | |
| 124 | { | |
| 125 | return (c_isupper(c) ? ((unsigned char)c & ~0x20) | 0x20 : c); | |
| 126 | } | |
| 127 | ||
| 128 | DPKG_END_DECLS | |
| 129 | ||
| 130 | #endif |