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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_RTL_CHARACTER_HXX
#define INCLUDED_RTL_CHARACTER_HXX
#include <sal/config.h>
#include <cassert>
#include <sal/types.h>
namespace rtl
{
/** Check for ASCII character.
@param code A Unicode code point.
@return True if code is an ASCII character (0x00--0x7F).
@since LibreOffice 4.1
*/
inline bool isAscii(sal_uInt32 code)
{
assert(code <= 0x10FFFF);
return code <= 0x7F;
}
/** Check for ASCII lower case character.
@param code A Unicode code point.
@return True if code is an ASCII lower case alphabetic character (ASCII
'a'--'z').
@since LibreOffice 4.1
*/
inline bool isAsciiLowerCase(sal_uInt32 code)
{
assert(code <= 0x10FFFF);
return code >= 'a' && code <= 'z';
}
/** Check for ASCII upper case character.
@param code A Unicode code point.
@return True if code is an ASCII upper case alphabetic character (ASCII
'A'--'Z').
@since LibreOffice 4.1
*/
inline bool isAsciiUpperCase(sal_uInt32 code)
{
assert(code <= 0x10FFFF);
return code >= 'A' && code <= 'Z';
}
/** Check for ASCII alphabetic character.
@param code A Unicode code point.
@return True if code is an ASCII alphabetic character (ASCII 'A'--'Z' or
'a'--'z').
@since LibreOffice 4.1
*/
inline bool isAsciiAlpha(sal_uInt32 code)
{
assert(code <= 0x10FFFF);
return isAsciiLowerCase(code) || isAsciiUpperCase(code);
}
/** Check for ASCII digit character.
@param code A Unicode code point.
@return True if code is an ASCII (decimal) digit character (ASCII
'0'--'9').
@since LibreOffice 4.1
*/
inline bool isAsciiDigit(sal_uInt32 code)
{
assert(code <= 0x10FFFF);
return code >= '0' && code <= '9';
}
/** Check for ASCII alphanumeric character.
@param code A Unicode code point.
@return True if code is an ASCII alphanumeric character (ASCII '0'--'9',
'A'--'Z', or 'a'--'z').
@since LibreOffice 4.1
*/
inline bool isAsciiAlphanumeric(sal_uInt32 code)
{
assert(code <= 0x10FFFF);
return isAsciiDigit(code) || isAsciiAlpha(code);
}
/** Check for ASCII canonic hexadecimal digit character.
@param code A Unicode code point.
@return True if code is an ASCII canonic (i.e., upper case) hexadecimal
digit character (ASCII '0'--'9' or 'A'--'F').
@since LibreOffice 4.1
*/
inline bool isAsciiCanonicHexDigit(sal_uInt32 code)
{
assert(code <= 0x10FFFF);
return isAsciiDigit(code) || (code >= 'A' && code <= 'F');
}
/** Check for ASCII hexadecimal digit character.
@param code A Unicode code point.
@return True if code is an ASCII hexadecimal digit character (ASCII
'0'--'9', 'A'--'F', or 'a'--'f').
@since LibreOffice 4.1
*/
inline bool isAsciiHexDigit(sal_uInt32 code)
{
assert(code <= 0x10FFFF);
return isAsciiCanonicHexDigit(code) || (code >= 'a' && code <= 'f');
}
/** Convert a character, if ASCII, to upper case.
@param code A Unicode code point.
@return code converted to ASCII upper case.
@since LibreOffice 4.2
*/
inline sal_uInt32 toAsciiUpperCase(sal_uInt32 code)
{
assert(code <= 0x10FFFF);
return isAsciiLowerCase(code) ? code - 32 : code;
}
/** Convert a character, if ASCII, to lower case.
@param code A Unicode code point.
@return code converted to ASCII lower case.
@since LibreOffice 4.2
*/
inline sal_uInt32 toAsciiLowerCase(sal_uInt32 code)
{
assert(code <= 0x10FFFF);
return isAsciiUpperCase(code) ? code + 32 : code;
}
/** Compare two characters ignoring ASCII case.
@param code1 A Unicode code point.
@param code2 A unicode code point.
@return 0 if both code points are equal,
< 0 if code1 is less than code2,
> 0 if code1 is greater than code2.
@since LibreOffice 4.2
*/
inline sal_Int32 compareIgnoreAsciiCase(sal_uInt32 code1, sal_uInt32 code2)
{
assert(code1 <= 0x10FFFF);
assert(code2 <= 0x10FFFF);
return static_cast<sal_Int32>(toAsciiLowerCase(code1))
- static_cast<sal_Int32>(toAsciiLowerCase(code2));
}
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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