libc
/* $Id$ */
/* Copyright (c) 2004-2017 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS System libc */
/* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT
* HOLDER 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 "ctype.h"
#undef isalnum
#undef isalpha
#undef ispunct
/* functions */
/* isalnum */
int isalnum(int c)
{
return isalpha(c) || isdigit(c);
}
/* isalpha */
int isalpha(int c)
{
return islower(c) || isupper(c);
}
/* isascii */
int isascii(int c)
{
return c >= 0 && c <= 127;
}
/* isblank */
int isblank(int c)
{
return c == ' ' || c == '\t';
}
/* iscntrl */
int iscntrl(int c)
{
/* FIXME implement */
return 0;
}
/* isdigit */
int isdigit(int c)
{
return c >= '0' && c <= '9';
}
/* isgraph */
int isgraph(int c)
{
return c > ' ' && c <= '~';
}
/* islower */
int islower(int c)
{
return c >= 'a' && c <= 'z';
}
/* isprint */
int isprint(int c)
{
return c >= ' ' && c <= '~';
}
/* ispunct */
int ispunct(int c)
{
return isprint(c) && (!(isspace(c) || isalnum(c)));
}
/* isspace */
int isspace(int c)
{
return c == ' ' || (c >= '\t' && c <= '\r');
}
/* isupper */
int isupper(int c)
{
return c >= 'A' && c <= 'Z';
}
/* isxdigit */
int isxdigit(int c)
{
return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f')
|| (c >= 'A' && c <= 'F');
}
/* toascii */
int toascii(int c)
{
return c & 0x7f;
}
/* tolower */
int tolower(int c)
{
if(isupper(c))
return c + 'a' - 'A';
return c;
}
/* toupper */
int toupper(int c)
{
if(islower(c))
return c + 'A' - 'a';
return c;
}