WCharacter.h

/*
 WCharacter.h - Character utility functions for Wiring & Arduino
 Copyright (c) 2010 Hernando Barragan. All right reserved.

 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.

 This library is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 Lesser General Public License for more details.

 You should have received a copy of the GNU Lesser General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndefCharacter_h
#defineCharacter_h

#include<ctype.h>
#defineisascii(__c) ((unsigned)(__c) <= 0177)
#definetoascii(__c) ((__c) & 0177)

// WCharacter.h prototypes
inlinebooleanisAlphaNumeric(intc) __attribute__((always_inline));
inlinebooleanisAlpha(intc) __attribute__((always_inline));
inlinebooleanisAscii(intc) __attribute__((always_inline));
inlinebooleanisWhitespace(intc) __attribute__((always_inline));
inlinebooleanisControl(intc) __attribute__((always_inline));
inlinebooleanisDigit(intc) __attribute__((always_inline));
inlinebooleanisGraph(intc) __attribute__((always_inline));
inlinebooleanisLowerCase(intc) __attribute__((always_inline));
inlinebooleanisPrintable(intc) __attribute__((always_inline));
inlinebooleanisPunct(intc) __attribute__((always_inline));
inlinebooleanisSpace(intc) __attribute__((always_inline));
inlinebooleanisUpperCase(intc) __attribute__((always_inline));
inlinebooleanisHexadecimalDigit(intc) __attribute__((always_inline));
inlineinttoAscii(intc) __attribute__((always_inline));
inlineinttoLowerCase(intc) __attribute__((always_inline));
inlineinttoUpperCase(intc) __attribute__((always_inline));

// Checks for an alphanumeric character.
// It is equivalent to (isalpha(c) || isdigit(c)).
inlinebooleanisAlphaNumeric(intc) {
return (isalnum(c) ==0 ? false : true);
}

// Checks for an alphabetic character.
// It is equivalent to (isupper(c) || islower(c)).
inlinebooleanisAlpha(intc) {
return (isalpha(c) ==0 ? false : true);
}

// Checks whether c is a 7-bit unsigned char value
// that fits into the ASCII character set.
inlinebooleanisAscii(intc) {
return (isascii(c) ==0 ? false : true);
}

// Checks for a blank character, that is, a space or a tab.
inlinebooleanisWhitespace(intc) {
return (isblank(c) ==0 ? false : true);
}

// Checks for a control character.
inlinebooleanisControl(intc) {
return (iscntrl(c) ==0 ? false : true);
}

// Checks for a digit (0 through 9).
inlinebooleanisDigit(intc) {
return (isdigit(c) ==0 ? false : true);
}

// Checks for any printable character except space.
inlinebooleanisGraph(intc) {
return (isgraph(c) ==0 ? false : true);
}

// Checks for a lower-case character.
inlinebooleanisLowerCase(intc) {
return (islower(c) ==0 ? false : true);
}

// Checks for any printable character including space.
inlinebooleanisPrintable(intc) {
return (isprint(c) ==0 ? false : true);
}

// Checks for any printable character which is not a space
// or an alphanumeric character.
inlinebooleanisPunct(intc) {
return (ispunct(c) ==0 ? false : true);
}

// Checks for white-space characters. For the avr-libc library,
// these are: space, formfeed ('\f'), newline ('\n'), carriage
// return ('\r'), horizontal tab ('\t'), and vertical tab ('\v').
inlinebooleanisSpace(intc) {
return (isspace(c) ==0 ? false : true);
}

// Checks for an uppercase letter.
inlinebooleanisUpperCase(intc) {
return (isupper(c) ==0 ? false : true);
}

// Checks for a hexadecimal digits, i.e. one of 0 1 2 3 4 5 6 7
// 8 9 a b c d e f A B C D E F.
inlinebooleanisHexadecimalDigit(intc) {
return (isxdigit(c) ==0 ? false : true);
}

// Converts c to a 7-bit unsigned char value that fits into the
// ASCII character set, by clearing the high-order bits.
inlineinttoAscii(intc) {
returntoascii(c);
}

// Warning:
// Many people will be unhappy if you use this function.
// This function will convert accented letters into random
// characters.

// Converts the letter c to lower case, if possible.
inlineinttoLowerCase(intc) {
returntolower(c);
}

// Converts the letter c to upper case, if possible.
inlineinttoUpperCase(intc) {
returntoupper(c);
}

#endif