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git.gir.st - tmk_keyboard.git/blob - tmk_core/protocol/usb_hid/arduino-1.0.1/cores/arduino/WCharacter.h
2 WCharacter.h - Character utility functions for Wiring & Arduino
3 Copyright (c) 2010 Hernando Barragan. All right reserved.
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.
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.
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
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
));
44 // Checks for an alphanumeric character.
45 // It is equivalent to (isalpha(c) || isdigit(c)).
46 inline boolean
isAlphaNumeric(int c
)
48 return ( isalnum(c
) == 0 ? false : true);
52 // Checks for an alphabetic character.
53 // It is equivalent to (isupper(c) || islower(c)).
54 inline boolean
isAlpha(int c
)
56 return ( isalpha(c
) == 0 ? false : true);
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
)
64 return ( isascii (c
) == 0 ? false : true);
68 // Checks for a blank character, that is, a space or a tab.
69 inline boolean
isWhitespace(int c
)
71 return ( isblank (c
) == 0 ? false : true);
75 // Checks for a control character.
76 inline boolean
isControl(int c
)
78 return ( iscntrl (c
) == 0 ? false : true);
82 // Checks for a digit (0 through 9).
83 inline boolean
isDigit(int c
)
85 return ( isdigit (c
) == 0 ? false : true);
89 // Checks for any printable character except space.
90 inline boolean
isGraph(int c
)
92 return ( isgraph (c
) == 0 ? false : true);
96 // Checks for a lower-case character.
97 inline boolean
isLowerCase(int c
)
99 return (islower (c
) == 0 ? false : true);
103 // Checks for any printable character including space.
104 inline boolean
isPrintable(int c
)
106 return ( isprint (c
) == 0 ? false : true);
110 // Checks for any printable character which is not a space
111 // or an alphanumeric character.
112 inline boolean
isPunct(int c
)
114 return ( ispunct (c
) == 0 ? false : true);
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
)
123 return ( isspace (c
) == 0 ? false : true);
127 // Checks for an uppercase letter.
128 inline boolean
isUpperCase(int c
)
130 return ( isupper (c
) == 0 ? false : true);
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
)
138 return ( isxdigit (c
) == 0 ? false : true);
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
)
151 // Many people will be unhappy if you use this function.
152 // This function will convert accented letters into random
155 // Converts the letter c to lower case, if possible.
156 inline int toLowerCase(int c
)
162 // Converts the letter c to upper case, if possible.
163 inline int toUpperCase(int c
)