[136] | 1 | /*
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| 2 | WCharacter.h - Character utility functions for Wiring & Arduino
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| 3 | Copyright (c) 2010 Hernando Barragan. All right reserved.
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| 4 |
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| 5 | This library is free software; you can redistribute it and/or
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| 6 | modify it under the terms of the GNU Lesser General Public
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| 7 | License as published by the Free Software Foundation; either
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| 8 | version 2.1 of the License, or (at your option) any later version.
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| 9 |
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| 10 | This library is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 13 | Lesser General Public License for more details.
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| 14 |
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| 15 | You should have received a copy of the GNU Lesser General Public
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| 16 | License along with this library; if not, write to the Free Software
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| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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| 18 | */
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| 19 |
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| 20 | #ifndef Character_h
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| 21 | #define Character_h
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| 22 |
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| 23 | #include <ctype.h>
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| 24 |
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| 25 | #ifdef __cplusplus
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| 26 | extern "C" {
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| 27 | #endif
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| 28 |
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| 29 | // WCharacter.h prototypes
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| 30 | #if defined ( __GNUC__ )
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| 31 | inline boolean isAlphaNumeric(int c) __attribute__((always_inline));
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| 32 | inline boolean isAlpha(int c) __attribute__((always_inline));
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| 33 | inline boolean isAscii(int c) __attribute__((always_inline));
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| 34 | inline boolean isWhitespace(int c) __attribute__((always_inline));
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| 35 | inline boolean isControl(int c) __attribute__((always_inline));
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| 36 | inline boolean isDigit(int c) __attribute__((always_inline));
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| 37 | inline boolean isGraph(int c) __attribute__((always_inline));
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| 38 | inline boolean isLowerCase(int c) __attribute__((always_inline));
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| 39 | inline boolean isPrintable(int c) __attribute__((always_inline));
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| 40 | inline boolean isPunct(int c) __attribute__((always_inline));
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| 41 | inline boolean isSpace(int c) __attribute__((always_inline));
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| 42 | inline boolean isUpperCase(int c) __attribute__((always_inline));
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| 43 | inline boolean isHexadecimalDigit(int c) __attribute__((always_inline));
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| 44 | inline int toAscii(int c) __attribute__((always_inline));
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| 45 | inline int toLowerCase(int c) __attribute__((always_inline));
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| 46 | inline int toUpperCase(int c)__attribute__((always_inline));
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| 47 | #elif defined ( __ICCARM__ )
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| 48 | #endif
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| 49 |
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| 50 | // Checks for an alphanumeric character.
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| 51 | // It is equivalent to (isalpha(c) || isdigit(c)).
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| 52 | inline boolean isAlphaNumeric(int c)
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| 53 | {
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| 54 | return ( isalnum(c) == 0 ? false : true);
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| 55 | }
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| 56 |
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| 57 |
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| 58 | // Checks for an alphabetic character.
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| 59 | // It is equivalent to (isupper(c) || islower(c)).
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| 60 | inline boolean isAlpha(int c)
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| 61 | {
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| 62 | return ( isalpha(c) == 0 ? false : true);
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| 63 | }
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| 64 |
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| 65 |
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| 66 | // Checks whether c is a 7-bit unsigned char value
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| 67 | // that fits into the ASCII character set.
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| 68 | inline boolean isAscii(int c)
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| 69 | {
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| 70 | /* return ( isascii(c) == 0 ? false : true); */
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| 71 | return ( (c & ~0x7f) != 0 ? false : true);
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| 72 | }
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| 73 |
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| 74 |
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| 75 | // Checks for a blank character, that is, a space or a tab.
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| 76 | inline boolean isWhitespace(int c)
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| 77 | {
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| 78 | return ( isblank (c) == 0 ? false : true);
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| 79 | }
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| 80 |
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| 81 |
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| 82 | // Checks for a control character.
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| 83 | inline boolean isControl(int c)
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| 84 | {
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| 85 | return ( iscntrl (c) == 0 ? false : true);
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| 86 | }
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| 87 |
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| 88 |
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| 89 | // Checks for a digit (0 through 9).
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| 90 | inline boolean isDigit(int c)
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| 91 | {
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| 92 | return ( isdigit (c) == 0 ? false : true);
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| 93 | }
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| 94 |
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| 95 |
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| 96 | // Checks for any printable character except space.
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| 97 | inline boolean isGraph(int c)
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| 98 | {
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| 99 | return ( isgraph (c) == 0 ? false : true);
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| 100 | }
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| 101 |
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| 102 |
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| 103 | // Checks for a lower-case character.
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| 104 | inline boolean isLowerCase(int c)
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| 105 | {
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| 106 | return (islower (c) == 0 ? false : true);
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| 107 | }
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| 108 |
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| 109 |
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| 110 | // Checks for any printable character including space.
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| 111 | inline boolean isPrintable(int c)
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| 112 | {
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| 113 | return ( isprint (c) == 0 ? false : true);
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| 114 | }
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| 115 |
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| 116 |
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| 117 | // Checks for any printable character which is not a space
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| 118 | // or an alphanumeric character.
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| 119 | inline boolean isPunct(int c)
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| 120 | {
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| 121 | return ( ispunct (c) == 0 ? false : true);
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| 122 | }
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| 123 |
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| 124 |
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| 125 | // Checks for white-space characters. For the avr-libc library,
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| 126 | // these are: space, formfeed ('\f'), newline ('\n'), carriage
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| 127 | // return ('\r'), horizontal tab ('\t'), and vertical tab ('\v').
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| 128 | inline boolean isSpace(int c)
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| 129 | {
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| 130 | return ( isspace (c) == 0 ? false : true);
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| 131 | }
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| 132 |
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| 133 |
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| 134 | // Checks for an uppercase letter.
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| 135 | inline boolean isUpperCase(int c)
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| 136 | {
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| 137 | return ( isupper (c) == 0 ? false : true);
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| 138 | }
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| 139 |
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| 140 |
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| 141 | // Checks for a hexadecimal digits, i.e. one of 0 1 2 3 4 5 6 7
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| 142 | // 8 9 a b c d e f A B C D E F.
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| 143 | inline boolean isHexadecimalDigit(int c)
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| 144 | {
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| 145 | return ( isxdigit (c) == 0 ? false : true);
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| 146 | }
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| 147 |
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| 148 |
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| 149 | // Converts c to a 7-bit unsigned char value that fits into the
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| 150 | // ASCII character set, by clearing the high-order bits.
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| 151 | inline int toAscii(int c)
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| 152 | {
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| 153 | /* return toascii (c); */
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| 154 | return (c & 0x7f);
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| 155 | }
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| 156 |
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| 157 |
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| 158 | // Warning:
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| 159 | // Many people will be unhappy if you use this function.
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| 160 | // This function will convert accented letters into random
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| 161 | // characters.
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| 162 |
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| 163 | // Converts the letter c to lower case, if possible.
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| 164 | inline int toLowerCase(int c)
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| 165 | {
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| 166 | return tolower (c);
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| 167 | }
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| 168 |
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| 169 |
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| 170 | // Converts the letter c to upper case, if possible.
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| 171 | inline int toUpperCase(int c)
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| 172 | {
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| 173 | return toupper (c);
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| 174 | }
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| 175 |
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| 176 | #ifdef __cplusplus
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| 177 | }
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| 178 | #endif
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| 179 |
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| 180 | #endif
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