Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #ifndef __PJ_CTYPE_H__ |
| 21 | #define __PJ_CTYPE_H__ |
| 22 | |
| 23 | /** |
| 24 | * @file ctype.h |
| 25 | * @brief C type helper macros. |
| 26 | */ |
| 27 | |
| 28 | #include <pj/types.h> |
| 29 | #include <pj/compat/ctype.h> |
| 30 | |
| 31 | PJ_BEGIN_DECL |
| 32 | |
| 33 | /** |
| 34 | * @defgroup pj_ctype ctype - Character Type |
| 35 | * @ingroup PJ_MISC |
| 36 | * @{ |
| 37 | * |
| 38 | * This module contains several inline functions/macros for testing or |
| 39 | * manipulating character types. It is provided in PJLIB because PJLIB |
| 40 | * must not depend to LIBC. |
| 41 | */ |
| 42 | |
| 43 | /** |
| 44 | * Returns a non-zero value if either isalpha or isdigit is true for c. |
| 45 | * @param c The integer character to test. |
| 46 | * @return Non-zero value if either isalpha or isdigit is true for c. |
| 47 | */ |
| 48 | PJ_INLINE(int) pj_isalnum(unsigned char c) { return isalnum(c); } |
| 49 | |
| 50 | /** |
| 51 | * Returns a non-zero value if c is a particular representation of an |
| 52 | * alphabetic character. |
| 53 | * @param c The integer character to test. |
| 54 | * @return Non-zero value if c is a particular representation of an |
| 55 | * alphabetic character. |
| 56 | */ |
| 57 | PJ_INLINE(int) pj_isalpha(unsigned char c) { return isalpha(c); } |
| 58 | |
| 59 | /** |
| 60 | * Returns a non-zero value if c is a particular representation of an |
| 61 | * ASCII character. |
| 62 | * @param c The integer character to test. |
| 63 | * @return Non-zero value if c is a particular representation of |
| 64 | * an ASCII character. |
| 65 | */ |
| 66 | PJ_INLINE(int) pj_isascii(unsigned char c) { return c<128; } |
| 67 | |
| 68 | /** |
| 69 | * Returns a non-zero value if c is a particular representation of |
| 70 | * a decimal-digit character. |
| 71 | * @param c The integer character to test. |
| 72 | * @return Non-zero value if c is a particular representation of |
| 73 | * a decimal-digit character. |
| 74 | */ |
| 75 | PJ_INLINE(int) pj_isdigit(unsigned char c) { return isdigit(c); } |
| 76 | |
| 77 | /** |
| 78 | * Returns a non-zero value if c is a particular representation of |
| 79 | * a space character (0x09 - 0x0D or 0x20). |
| 80 | * @param c The integer character to test. |
| 81 | * @return Non-zero value if c is a particular representation of |
| 82 | * a space character (0x09 - 0x0D or 0x20). |
| 83 | */ |
| 84 | PJ_INLINE(int) pj_isspace(unsigned char c) { return isspace(c); } |
| 85 | |
| 86 | /** |
| 87 | * Returns a non-zero value if c is a particular representation of |
| 88 | * a lowercase character. |
| 89 | * @param c The integer character to test. |
| 90 | * @return Non-zero value if c is a particular representation of |
| 91 | * a lowercase character. |
| 92 | */ |
| 93 | PJ_INLINE(int) pj_islower(unsigned char c) { return islower(c); } |
| 94 | |
| 95 | |
| 96 | /** |
| 97 | * Returns a non-zero value if c is a particular representation of |
| 98 | * a uppercase character. |
| 99 | * @param c The integer character to test. |
| 100 | * @return Non-zero value if c is a particular representation of |
| 101 | * a uppercase character. |
| 102 | */ |
| 103 | PJ_INLINE(int) pj_isupper(unsigned char c) { return isupper(c); } |
| 104 | |
| 105 | /** |
| 106 | * Returns a non-zero value if c is a either a space (' ') or horizontal |
| 107 | * tab ('\\t') character. |
| 108 | * @param c The integer character to test. |
| 109 | * @return Non-zero value if c is a either a space (' ') or horizontal |
| 110 | * tab ('\\t') character. |
| 111 | */ |
| 112 | PJ_INLINE(int) pj_isblank(unsigned char c) { return isblank(c); } |
| 113 | |
| 114 | /** |
| 115 | * Converts character to lowercase. |
| 116 | * @param c The integer character to convert. |
| 117 | * @return Lowercase character of c. |
| 118 | */ |
| 119 | PJ_INLINE(int) pj_tolower(unsigned char c) { return tolower(c); } |
| 120 | |
| 121 | /** |
| 122 | * Converts character to uppercase. |
| 123 | * @param c The integer character to convert. |
| 124 | * @return Uppercase character of c. |
| 125 | */ |
| 126 | PJ_INLINE(int) pj_toupper(unsigned char c) { return toupper(c); } |
| 127 | |
| 128 | /** |
| 129 | * Returns a non-zero value if c is a particular representation of |
| 130 | * an hexadecimal digit character. |
| 131 | * @param c The integer character to test. |
| 132 | * @return Non-zero value if c is a particular representation of |
| 133 | * an hexadecimal digit character. |
| 134 | */ |
| 135 | PJ_INLINE(int) pj_isxdigit(unsigned char c){ return isxdigit(c); } |
| 136 | |
| 137 | /** |
| 138 | * Array of hex digits, in lowerspace. |
| 139 | */ |
| 140 | /*extern char pj_hex_digits[];*/ |
| 141 | #define pj_hex_digits "0123456789abcdef" |
| 142 | |
| 143 | /** |
| 144 | * Convert a value to hex representation. |
| 145 | * @param value Integral value to convert. |
| 146 | * @param p Buffer to hold the hex representation, which must be |
| 147 | * at least two bytes length. |
| 148 | */ |
| 149 | PJ_INLINE(void) pj_val_to_hex_digit(unsigned value, char *p) |
| 150 | { |
| 151 | *p++ = pj_hex_digits[ (value & 0xF0) >> 4 ]; |
| 152 | *p = pj_hex_digits[ (value & 0x0F) ]; |
| 153 | } |
| 154 | |
| 155 | /** |
| 156 | * Convert hex digit c to integral value. |
| 157 | * @param c The hex digit character. |
| 158 | * @return The integral value between 0 and 15. |
| 159 | */ |
| 160 | PJ_INLINE(unsigned) pj_hex_digit_to_val(unsigned char c) |
| 161 | { |
| 162 | if (c <= '9') |
| 163 | return (c-'0') & 0x0F; |
| 164 | else if (c <= 'F') |
| 165 | return (c-'A'+10) & 0x0F; |
| 166 | else |
| 167 | return (c-'a'+10) & 0x0F; |
| 168 | } |
| 169 | |
| 170 | /** @} */ |
| 171 | |
| 172 | PJ_END_DECL |
| 173 | |
| 174 | #endif /* __PJ_CTYPE_H__ */ |
| 175 | |