c8e39e6652
Change-Id: Id90935fd2b0f904f89477792edc8140cfc31e91f Reviewed-on: https://gerrit.libreoffice.org/5412 Reviewed-by: Petr Mladek <pmladek@suse.cz> Tested-by: Petr Mladek <pmladek@suse.cz>
169 lines
4.6 KiB
C++
169 lines
4.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_RTL_CHARACTER_HXX
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#define INCLUDED_RTL_CHARACTER_HXX
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#include "sal/config.h"
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#include "sal/types.h"
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#include "sal/log.hxx"
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#include <assert.h>
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namespace rtl
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{
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/** Check for ASCII character.
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@param nUtf32 A Unicode scalar value (represented as a UTF-32 code unit).
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@return True if nChar is a ASCII character (0x00--0x7F).
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@since LibreOffice 4.1
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*/
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inline bool isAscii(sal_uInt32 nUtf32)
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{
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return nUtf32 <= 0x7F;
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}
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/** Check for ASCII lower case character.
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@param nUtf32 A Unicode scalar value (represented as a UTF-32 code unit).
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@return True if nChar is a US-ASCII lower case alphabetic character
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(ASCII 'a'--'z').
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@since LibreOffice 4.1
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*/
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inline bool isAsciiLowerCase(sal_uInt32 nUtf32)
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{
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return nUtf32 >= 'a' && nUtf32 <= 'z';
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}
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/** Check for US-ASCII upper case character.
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@param nUtf32 A Unicode scalar value (represented as a UTF-32 code unit).
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@return True if nChar is a US-ASCII upper case alphabetic character
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(US-ASCII 'A'--'Z').
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@since LibreOffice 4.1
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*/
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inline bool isAsciiUpperCase(sal_uInt32 nUtf32)
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{
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return nUtf32 >= 'A' && nUtf32 <= 'Z';
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}
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/** Check for ASCII alphanumeric character.
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@param nUtf32 A Unicode scalar value (represented as a UTF-32 code unit).
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@return True if nUtf32 is a US-ASCII alphanumeric character
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(ASCII '0'--'9', 'A'--'Z' or 'a'--'z').
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@since LibreOffice 4.1
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*/
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inline bool isAsciiAlpha(sal_uInt32 nUtf32)
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{
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return isAsciiLowerCase(nUtf32) || isAsciiUpperCase(nUtf32);
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}
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/** Check for ASCII digit character.
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@param nUtf32 A Unicode scalar value (represented as a UTF-32 code unit).
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@return True if nChar is a ASCII (decimal) digit character
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(ASCII '0'--'9').
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@since LibreOffice 4.1
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*/
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inline bool isAsciiDigit(sal_uInt32 nUtf32)
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{
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return nUtf32 >= '0' && nUtf32 <= '9';
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}
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/** Check for US-ASCII alphanumeric character.
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@param nUtf32 A Unicode scalar value (represented as a UTF-32 code unit).
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@return True if nChar is a US-ASCII alphanumeric character (US-ASCII
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'0'--'9', 'A'--'Z' or 'a'--'z').
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@since LibreOffice 4.1
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*/
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inline bool isAsciiAlphanumeric(sal_uInt32 nUtf32)
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{
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return isAsciiDigit(nUtf32) || isAsciiAlpha(nUtf32);
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}
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/** Check for US-ASCII canonic hexadecimal digit character.
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@param nUtf32 A Unicode scalar value (represented as a UTF-32 code unit).
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@return True if nChar is a US-ASCII canonic (i.e., upper case)
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hexadecimal digit character (US-ASCII '0'--'9' or 'A'--'F').
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@since LibreOffice 4.1
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*/
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inline bool isAsciiCanonicHexDigit(sal_uInt32 nUtf32)
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{
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return isAsciiDigit(nUtf32) || (nUtf32 >= 'A' && nUtf32 <= 'F');
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}
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/** Check for US-ASCII hexadecimal digit character.
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@param nUtf32 A Unicode scalar value (represented as a UTF-32 code unit).
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@return True if nChar is a US-ASCII hexadecimal digit character (US-
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ASCII '0'--'9', 'A'--'F', 'a'--'f').
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@since LibreOffice 4.1
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*/
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inline bool isAsciiHexDigit(sal_uInt32 nUtf32)
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{
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return isAsciiCanonicHexDigit(nUtf32) || (nUtf32 >= 'a' && nUtf32 <= 'f');
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}
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/** Compare two US-ASCII characters.
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@param nChar1 A Unicode scalar value (represented as a UTF-32 code unit).
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@param nChar2 A unicode scalar value (represented as a UTF-32 code unit).
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@return
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0 if both strings are equal
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< 0 - if this string is less than the string argument
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> 0 - if this string is greater than the string argument
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@since LibreOffice 4.2
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*/
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inline sal_Int32 compareAsciiIgnoreCase(sal_uInt32 nChar1, sal_uInt32 nChar2)
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{
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assert(isAscii(nChar1) && isAscii(nChar2));
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if ( isAsciiUpperCase(nChar1) )
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nChar1 += 32;
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if ( isAsciiUpperCase(nChar2) )
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nChar2 += 32;
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return nChar1 - nChar2;
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}
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}//rtl namespace
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#endif
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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