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86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
/* This file is part of the KDE libraries
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Copyright (C) 2008 Andreas Hartmetz <ahartmetz@gmail.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef PARSINGHELPERS_H
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#define PARSINGHELPERS_H
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#include <QtCore/QList>
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#include <QtCore/QPair>
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#include <QtCore/QMap>
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struct HeaderField {
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HeaderField(bool multiValued)
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{ isMultiValued = multiValued; }
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// QHash requires a default constructor
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HeaderField()
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{ isMultiValued = false; }
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bool isMultiValued;
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QList<QPair<int, int> > beginEnd;
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};
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class HeaderTokenizer;
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class TokenIterator
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{
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public:
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inline bool hasNext() const
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{
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return m_currentToken < m_tokens.count();
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}
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QByteArray next();
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QByteArray current() const;
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QList<QByteArray> all() const;
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private:
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friend class HeaderTokenizer;
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QList<QPair<int, int> > m_tokens;
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int m_currentToken;
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const char *m_buffer;
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TokenIterator(const QList<QPair<int, int> > &tokens, const char *buffer)
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: m_tokens(tokens),
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m_currentToken(0),
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m_buffer(buffer) {}
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};
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class HeaderTokenizer : public QHash<QByteArray, HeaderField>
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{
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public:
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HeaderTokenizer(char *buffer);
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// note that buffer is not const - in the parsed area CR/LF will be overwritten
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// with spaces if there is a line continuation.
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/// @return: index of first char after header or end
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int tokenize(int begin, int end);
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// after tokenize() has been called use the QHash part of this class to
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// ask for a list of begin-end indexes in buffer for header values.
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TokenIterator iterator(const char *key) const;
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private:
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char *m_buffer;
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struct HeaderFieldTemplate {
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const char *name;
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bool isMultiValued;
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};
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QList<QPair<int, int> > m_nullTokens; //long-lived, allows us to pass out references.
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};
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#endif //PARSINGHELPERS_H
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