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/*
*
* Copyright (C) 2008 Uwe Hermann <uwe@hermann-uwe.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <libpayload.h>
int isalpha(int c)
{
return ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'));
}
int isascii(int c)
{
return (c >= 0 && c <= 127);
}
int isblank(int c)
{
return (c == ' ' || c == '\t');
}
int iscntrl(int c)
{
return (c <= 31 || c == 127);
}
int isdigit(int c)
{
return (c >= '0' && c <= '9');
}
int isalnum(int c)
{
return isalpha(c) || isdigit(c);
}
int isgraph(int c)
{
return (c >= 33 && c <= 126);
}
int islower(int c)
{
return (c >= 'a' && c <= 'z');
}
int isprint(int c)
{
return (c >= 32 && c <= 126);
}
int ispunct(int c)
{
return isprint(c) && !isspace(c) && !isalnum(c);
}
int isspace(int c)
{
return (c == ' ' || (c >= '\t' && c <= '\r'));
}
int isupper(int c)
{
return (c >= 'A' && c <= 'Z');
}
int isxdigit(int c)
{
return isdigit(c) || (tolower(c) >= 'a' && tolower(c) <= 'f');
}
int tolower(int c)
{
return (c >= 'A' && c <= 'Z') ? (c + 32) : c;
}
int toupper(int c)
{
return (c >= 'a' && c <= 'z') ? (c - 32) : c;
}
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