/* $Id: WCharacter.h 1156 2011-06-07 04:01:16Z bhagman $
||
|| @author         Hernando Barragan <b@wiring.org.co>
|| @url            http://wiring.org.co/
|| @contribution   Brett Hagman <bhagman@wiring.org.co>
|| @contribution   Alexander Brevig <abrevig@wiring.org.co>
||
|| @description
|| | Character classification and conversion functions.
|| |
|| | Wiring Common API
|| #
||
|| @license Please see cores/Common/License.txt.
||
*/

#pragma once

// WCharacter.h prototypes
inline bool isAlphaNumeric(int c) __attribute__((always_inline));
inline bool isAlpha(int c) __attribute__((always_inline));
//inline bool isAscii(int c) __attribute__((always_inline));
inline bool isWhitespace(int c) __attribute__((always_inline));
inline bool isControl(int c) __attribute__((always_inline));
inline bool isDigit(int c) __attribute__((always_inline));
inline bool isGraph(int c) __attribute__((always_inline));
inline bool isLowerCase(int c) __attribute__((always_inline));
inline bool isPrintable(int c) __attribute__((always_inline));
inline bool isPunct(int c) __attribute__((always_inline));
inline bool isSpace(int c) __attribute__((always_inline));
inline bool isUpperCase(int c) __attribute__((always_inline));
inline bool isHexadecimalDigit(int c) __attribute__((always_inline));
//inline int toAscii(int c) __attribute__((always_inline));
inline int toLowerCase(int c) __attribute__((always_inline));
inline int toUpperCase(int c) __attribute__((always_inline));

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

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

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

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

// Checks for a control character.
inline bool isControl(int c)
{
	return (iscntrl(c) == 0 ? false : true);
}

// Checks for a digit (0 through 9).
inline bool isDigit(int c)
{
	return (isdigit(c) == 0 ? false : true);
}

// Checks for any printable character except space.
inline bool isGraph(int c)
{
	return (isgraph(c) == 0 ? false : true);
}

// Checks for a lower-case character.
inline bool isLowerCase(int c)
{
	return (islower(c) == 0 ? false : true);
}

// Checks for any printable character including space.
inline bool isPrintable(int c)
{
	return (isprint(c) == 0 ? false : true);
}

// Checks for any printable character which is not a space
// or an alphanumeric character.
inline bool isPunct(int c)
{
	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’).
inline bool isSpace(int c)
{
	return (isspace(c) == 0 ? false : true);
}

// Checks for an uppercase letter.
inline bool isUpperCase(int c)
{
	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.
inline bool isHexadecimalDigit(int c)
{
	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.
inline int toAscii(int c)
{
  return toascii(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.
inline int toLowerCase(int c)
{
	return tolower(c);
}

// Converts the letter c to upper case, if possible.
inline int toUpperCase(int c)
{
	return toupper(c);
}