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