зеркало из https://github.com/mozilla/gecko-dev.git
98 строки
3.8 KiB
C++
98 строки
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Unicode case conversion helpers.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corp..
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* Portions created by the Initial Developer are Copyright (C) 2002
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Alec Flett <alecf@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsUnicharUtils_h__
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#define nsUnicharUtils_h__
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#ifndef nsAString_h___
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#include "nsAString.h"
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#endif
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void ToLowerCase( nsAString& );
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void ToUpperCase( nsAString& );
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void ToLowerCase( nsASingleFragmentString& );
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void ToUpperCase( nsASingleFragmentString& );
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void ToLowerCase( nsString& );
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void ToUpperCase( nsString& );
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void ToLowerCase( const nsAString& aSource, nsAString& aDest );
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void ToUpperCase( const nsAString& aSource, nsAString& aDest );
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PRBool CaseInsensitiveFindInReadable( const nsAString& aPattern, nsAString::const_iterator&, nsAString::const_iterator& );
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class nsCaseInsensitiveStringComparator
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: public nsStringComparator
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{
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public:
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virtual int operator()( const PRUnichar*, const PRUnichar*, PRUint32 aLength ) const;
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virtual int operator()( PRUnichar, PRUnichar ) const;
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};
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PRUnichar ToUpperCase(PRUnichar);
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PRUnichar ToLowerCase(PRUnichar);
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inline PRBool IsUpperCase(PRUnichar c) {
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return ToLowerCase(c) != c;
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}
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inline PRBool IsLowerCase(PRUnichar c) {
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return ToUpperCase(c) != c;
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}
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#define IS_HIGH_SURROGATE(u) ((PRUnichar)(u) >= (PRUnichar)0xd800 && (PRUnichar)(u) <= (PRUnichar)0xdbff)
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#define IS_LOW_SURROGATE(u) ((PRUnichar)(u) >= (PRUnichar)0xdc00 && (PRUnichar)(u) <= (PRUnichar)0xdfff)
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#define SURROGATE_TO_UCS4(h, l) ((((PRUint32)(h)-(PRUint32)0xd800) << 10) + \
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(PRUint32)(l) - (PRUint32)(0xdc00) + 0x10000)
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#define H_SURROGATE(s) ((PRUnichar)(((PRUint32)s - (PRUint32)0x10000) >> 10) + (PRUnichar)0xd800)
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#define L_SURROGATE(s) ((PRUnichar)(((PRUint32)s - (PRUint32)0x10000) & 0x3ff) + (PRUnichar)0xdc00)
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#define IS_IN_BMP(ucs) ((PRUint32)ucs < 0x10000)
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/* (0x3131u <= (u) && (u) <= 0x318eu) => Hangul Compatibility Jamo */
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/* (0xac00u <= (u) && (u) <= 0xd7a3u) => Hangul Syllables */
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#define IS_CJ_CHAR(u) \
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((0x2e80u <= (u) && (u) <= 0x312fu) || \
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(0x3190u <= (u) && (u) <= 0xabffu) || \
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(0xf900u <= (u) && (u) <= 0xfaffu) || \
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(0xff00u <= (u) && (u) <= 0xffefu) )
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#endif /* nsUnicharUtils_h__ */
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