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

2016-04-25T02:11:19Z

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<pre style="color:blue">
/*
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
*/

#ifndef Character_h
#define Character_h

#include <ctype.h>

// WCharacter.h prototypes
inline boolean isAlphaNumeric(int c) __attribute__((always_inline));
inline boolean isAlpha(int c) __attribute__((always_inline));
inline boolean isAscii(int c) __attribute__((always_inline));
inline boolean isWhitespace(int c) __attribute__((always_inline));
inline boolean isControl(int c) __attribute__((always_inline));
inline boolean isDigit(int c) __attribute__((always_inline));
inline boolean isGraph(int c) __attribute__((always_inline));
inline boolean isLowerCase(int c) __attribute__((always_inline));
inline boolean isPrintable(int c) __attribute__((always_inline));
inline boolean isPunct(int c) __attribute__((always_inline));
inline boolean isSpace(int c) __attribute__((always_inline));
inline boolean isUpperCase(int c) __attribute__((always_inline));
inline boolean 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 boolean isAlphaNumeric(int c)
{
return ( isalnum(c) == 0 ? false : true);
}

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

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

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

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

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

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

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

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

// Checks for an uppercase letter.
inline boolean 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 boolean 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);
}

#endif
</pre>

WCharacter.h - 版本历史

YWrobot CYB：创建页面，内容为“
/* WCharacter.h - Character utility functions for Wiring & Arduino Copyright (c) 2010 Hernando Barragan. All right reserved. This libr...”