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/* * This file is part of the KDE libraries * Copyright (C) 1999-2000 Harri Porten (porten@kde.org) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public License * along with this library; see the file COPYING.LIB. If not, write to * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifndef _KJS_STRING_H_ #define _KJS_STRING_H_ /** * @internal */ namespace DOM { class DOMString; }; class KJScript; class QString; class QConstString; namespace KJS { /** * @short Unicode character. * * UChar represents a 16 bit Unicode character. It's internal data * representation is compatible to XChar2b and QChar. It's therefore * possible to exchange data with X and Qt with shallow copies. */ struct UChar { /** * Construct a character with value 0. */ UChar() : hi(0), lo(0) { } /** * Construct a character with the value denoted by the arguments. * @param h higher byte * @param l lower byte */ UChar(unsigned char h , unsigned char l) : hi(h), lo(l) { } /** * Construct a character with the given value. * @param u 16 bit Unicode value */ UChar(unsigned short u) : hi(u & 0xff00), lo(u & 0x00ff) { } /** * @return the 16 bit Unicode value of the character */ unsigned short unicode() const { return hi << 8 | lo; } /** * The higher byte of the character. */ unsigned char hi; /** * The lower byte of the character. */ unsigned char lo; /** * A static instance of UChar(0). */ static UChar null; }; /** * @short 8 bit char based string class */ class CString { public: CString() : data(0L) { } CString(const char *c); CString(const CString &); ~CString(); CString &append(const CString &); CString &operator=(const char *c); CString &operator=(const CString &); CString &operator+=(const CString &); int size() const; const char *c_str() const { return data; } private: char *data; }; class UString; /** * @short Unicode string class */ class UString { friend bool operator==(const UString&, const UString&); friend KJScript; /** * @internal */ struct Rep { friend UString; friend bool operator==(const UString&, const UString&); static Rep *create(UChar *d, int l); inline UChar *data() const { return dat; } inline int size() const { return len; } inline void ref() { rc++; } inline int deref() { return --rc; } UChar *dat; int len; int rc; static Rep null; }; public: UString(); UString(char c); UString(int i); UString(const char *c); UString(const UChar *c, int length); UString(UChar *c, int length, bool copy); UString(const UString &); UString(const UString *); UString(const DOM::DOMString &); ~UString(); static UString from(int i); static UString from(unsigned int u); static UString from(double d); UString &append(const UString &); // conversions to other string types CString cstring() const; char *ascii() const; DOM::DOMString string() const; QString qstring() const; QConstString qconststring() const; UString &operator=(const char *c); UString &operator=(const UString &); UString &operator+=(const UString &s); const UChar* data() const { return rep->data(); } bool isNull() const { return (rep == &Rep::null); } bool isEmpty() const { return (!rep->len); } bool is8Bit() const; int size() const { return rep->size(); } UChar &operator[](int pos) const; double toDouble() const; int find(const UString &f, int pos = 0) const; int rfind(const UString &f, int pos) const; UString substr(int pos = 0, int len = -1) const; static UString null; private: void attach(Rep *r); void release(); Rep *rep; }; bool operator==(const UChar &c1, const UChar &c2); bool operator==(const UString& s1, const UString& s2); bool operator==(const CString& s1, const CString& s2); UString operator+(const UString& s1, const UString& s2); }; // namespace #endif
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