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Diffstat (limited to 'embed/mozilla/nsUnicharUtils.h')
-rw-r--r-- | embed/mozilla/nsUnicharUtils.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/embed/mozilla/nsUnicharUtils.h b/embed/mozilla/nsUnicharUtils.h new file mode 100644 index 000000000..6ae9a238d --- /dev/null +++ b/embed/mozilla/nsUnicharUtils.h @@ -0,0 +1,96 @@ +/* -*- 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 + +class nsASingleFragmentString; +class nsString; + +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 ); + +PRBool CaseInsensitiveFindInReadable( const nsAString& aPattern, nsAString::const_iterator&, nsAString::const_iterator& ); + +class nsCaseInsensitiveStringComparator + : public nsStringComparator + { + public: + virtual int operator()( const PRUnichar*, const PRUnichar*, PRUint32 aLength ) const; + virtual int operator()( PRUnichar, PRUnichar ) const; + }; + + +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) + +/* (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) <= 0xffffu) ) + +#endif /* nsUnicharUtils_h__ */ |