1 /* 2 * (C) 1999 Lars Knoll (knoll@kde.org) 3 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 * 20 */ 21 22 #ifndef PlatformString_h 23 #define PlatformString_h 24 25 // This file would be called String.h, but that conflicts with <string.h> 26 // on systems without case-sensitive file systems. 27 28 #include <wtf/text/WTFString.h> 29 30 namespace WebCore { 31 32 class SharedBuffer; 33 34 PassRefPtr<SharedBuffer> utf8Buffer(const String&); 35 // Counts the number of grapheme clusters. A surrogate pair or a sequence 36 // of a non-combining character and following combining characters is 37 // counted as 1 grapheme cluster. 38 unsigned numGraphemeClusters(const String& s); 39 // Returns the number of characters which will be less than or equal to 40 // the specified grapheme cluster length. 41 unsigned numCharactersInGraphemeClusters(const String& s, unsigned); 42 43 } // namespace WebCore 44 45 #endif 46