#ifndef KHTMLSTRING_H
#define KHTMLSTRING_H
#include "dom/dom_string.h"
#include <qstring.h>
#include <qvaluelist.h>
#include <assert.h>
namespace khtml
{
class TokenizerString;
class TokenizerSubstring
{
private:
friend class TokenizerString;
TokenizerSubstring() : m_length(0), m_current(0) {}
TokenizerSubstring(const QString &str) : m_string(str), m_length(str.length()) {
#if APPLE_CHANGES
m_current = m_length == 0 ? 0 : m_string.stableUnicode();
#else
m_current = m_length == 0 ? 0 : m_string.unicode();
#endif
}
TokenizerSubstring(const QChar *str, int length) : m_length(length), m_current(length == 0 ? 0 : str) {}
void clear() { m_length = 0; m_current = 0; }
void appendTo(QString &str) const {
if (m_string.unicode() == m_current) {
if (str.isEmpty())
str = m_string;
else
str.append(m_string);
} else {
str.insert(str.length(), m_current, m_length);
}
}
QString m_string;
int m_length;
const QChar *m_current;
};
class TokenizerString
{
public:
TokenizerString() : m_currentChar(0), m_lines(0), m_composite(false) {}
TokenizerString(const QChar *str, int length) : m_currentString(str, length), m_currentChar(m_currentString.m_current), m_lines(0), m_composite(false) {}
TokenizerString(const QString &str) : m_currentString(str), m_currentChar(m_currentString.m_current), m_lines(0), m_composite(false) {}
void clear();
void append(const TokenizerString &);
void prepend(const TokenizerString &);
void push(QChar c) {
if (m_pushedChar1.isNull()) {
m_pushedChar1 = c;
m_currentChar = m_pushedChar1.isNull() ? m_currentString.m_current : &m_pushedChar1;
} else {
assert(m_pushedChar2.isNull());
m_pushedChar2 = c;
}
}
bool isEmpty() const { return !current(); }
uint length() const;
void advance() {
if (!m_pushedChar1.isNull()) {
m_pushedChar1 = m_pushedChar2;
m_pushedChar2 = 0;
} else if (m_currentString.m_current) {
m_lines += *m_currentString.m_current++ == '\n';
if (--m_currentString.m_length == 0)
advanceSubstring();
}
m_currentChar = m_pushedChar1.isNull() ? m_currentString.m_current: &m_pushedChar1;
}
bool escaped() const { return !m_pushedChar1.isNull(); }
int lineCount() const { return m_lines; }
void resetLineCount() { m_lines = 0; }
QString toString() const;
void operator++() { advance(); }
const QChar &operator*() const { return *current(); }
const QChar *operator->() const { return current(); }
private:
void append(const TokenizerSubstring &);
void prepend(const TokenizerSubstring &);
void advanceSubstring();
const QChar *current() const { return m_currentChar; }
QChar m_pushedChar1;
QChar m_pushedChar2;
TokenizerSubstring m_currentString;
const QChar *m_currentChar;
QValueList<TokenizerSubstring> m_substrings;
int m_lines;
bool m_composite;
};
}
#endif