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KHTML

dom_string.h

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00001 /*
00002  * This file is part of the DOM implementation for KDE.
00003  *
00004  * Copyright 1999 Lars Knoll (knoll@kde.org)
00005  *
00006  * This library is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Library General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2 of the License, or (at your option) any later version.
00010  *
00011  * This library is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Library General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Library General Public License
00017  * along with this library; see the file COPYING.LIB.  If not, write to
00018  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00019  * Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 #ifndef _DOM_DOMString_h_
00023 #define _DOM_DOMString_h_
00024 
00025 #include <khtml_export.h>
00026 #include <kdebug.h>
00027 #include <QtCore/QString>
00028 #include <limits.h>
00029 
00030 namespace DOM {
00031 
00032 class DOMStringImpl;
00033 
00043 class KHTML_EXPORT DOMString
00044 {
00045     friend class CharacterDataImpl;
00046     friend KHTML_EXPORT bool operator==( const DOMString &a, const char *b );
00047 public:
00051     DOMString() : impl(0) {}
00052 
00053     DOMString(const QChar *str, uint len);
00054     DOMString(const QString &);
00055     DOMString(const char *str);
00059     DOMString(const char *str, uint len);
00060     DOMString(DOMStringImpl *i);
00061 
00062     virtual ~DOMString();
00063 
00064     // assign and copy
00065     DOMString(const DOMString &str);
00066     DOMString &operator =(const DOMString &str);
00067 
00071     DOMString &operator += (const DOMString &str);
00075     DOMString operator + (const DOMString &str);
00076 
00077     void insert(DOMString str, uint pos);
00078 
00083     const QChar &operator [](unsigned int i) const;
00084 
00085     int find(const QChar c, int start = 0) const;
00086     int reverseFind(const QChar c, int start = -1) const;
00087 
00088     DOMString substring(unsigned pos, unsigned len = UINT_MAX) const;
00089 
00090     uint length() const;
00091     void truncate( unsigned int len );
00092     void remove(unsigned int pos, int len=1);
00096     DOMString split(unsigned int pos);
00097 
00101     DOMString lower() const;
00105     DOMString upper() const;
00106 
00107     QChar *unicode() const;
00108     // for WebCore API compatibility
00109     inline QChar *characters() const { return unicode(); }
00110     QString string() const;
00111 
00112     int toInt() const;
00113     int toInt(bool* ok) const;
00114     float toFloat(bool* ok = 0) const;
00115     bool percentage(int &_percentage) const;
00116 
00117     static DOMString number(float f);
00118 
00119     DOMString copy() const;
00120 
00121     bool isNull()  const { return (impl == 0); }
00122     bool isEmpty()  const;
00123 
00124     bool endsWith(const DOMString& str) const;
00125     bool startsWith(const DOMString& str) const;
00126 
00131     DOMStringImpl *implementation() const { return impl; }
00132 
00133     static DOMString format(const char* format, ...);
00134 
00135 protected:
00136     DOMStringImpl *impl;
00137 };
00138 
00139 inline QDebug operator<<(QDebug stream, const DOMString &string) {
00140     return (stream << (string.implementation() ? string.string() : QString::fromLatin1("null")));
00141 }
00142 
00143 KHTML_EXPORT bool operator==( const DOMString &a, const DOMString &b );
00144 KHTML_EXPORT bool operator==( const DOMString &a, const QString &b );
00145 KHTML_EXPORT bool operator==( const DOMString &a, const char *b );
00146 inline bool operator!=( const DOMString &a, const DOMString &b ) { return !(a==b); }
00147 inline bool operator!=( const DOMString &a, const QString &b ) { return !(a==b); }
00148 inline bool operator!=( const DOMString &a, const char *b )  { return !(a==b); }
00149 inline bool strcmp( const DOMString &a, const DOMString &b ) { return a != b; }
00150 
00151 // returns false when equal, true otherwise (ignoring case)
00152 KHTML_EXPORT bool strcasecmp( const DOMString &a, const DOMString &b );
00153 KHTML_EXPORT bool strcasecmp( const DOMString& a, const char* b );
00154 
00155 }
00156 #endif

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