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