104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
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/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_LIBJINGLE_XMLLITE_XMLPARSER_H_
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#define WEBRTC_LIBJINGLE_XMLLITE_XMLPARSER_H_
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#include <string>
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#include "webrtc/libjingle/xmllite/xmlnsstack.h"
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#ifdef EXPAT_RELATIVE_PATH
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#include "expat.h"
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#else
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#include "third_party/expat/v2_0_1/Source/lib/expat.h"
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#endif // EXPAT_RELATIVE_PATH
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struct XML_ParserStruct;
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typedef struct XML_ParserStruct* XML_Parser;
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namespace buzz {
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class XmlParseHandler;
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class XmlParseContext;
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class XmlParser;
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class XmlParseContext {
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public:
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virtual ~XmlParseContext() {}
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virtual QName ResolveQName(const char * qname, bool isAttr) = 0;
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virtual void RaiseError(XML_Error err) = 0;
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virtual void GetPosition(unsigned long * line, unsigned long * column,
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unsigned long * byte_index) = 0;
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};
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class XmlParseHandler {
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public:
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virtual ~XmlParseHandler() {}
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virtual void StartElement(XmlParseContext * pctx,
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const char * name, const char ** atts) = 0;
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virtual void EndElement(XmlParseContext * pctx,
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const char * name) = 0;
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virtual void CharacterData(XmlParseContext * pctx,
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const char * text, int len) = 0;
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virtual void Error(XmlParseContext * pctx,
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XML_Error errorCode) = 0;
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};
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class XmlParser {
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public:
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static void ParseXml(XmlParseHandler * pxph, std::string text);
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explicit XmlParser(XmlParseHandler * pxph);
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bool Parse(const char * data, size_t len, bool isFinal);
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void Reset();
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virtual ~XmlParser();
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// expat callbacks
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void ExpatStartElement(const char * name, const char ** atts);
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void ExpatEndElement(const char * name);
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void ExpatCharacterData(const char * text, int len);
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void ExpatXmlDecl(const char * ver, const char * enc, int standalone);
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private:
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class ParseContext : public XmlParseContext {
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public:
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ParseContext();
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virtual ~ParseContext();
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virtual QName ResolveQName(const char * qname, bool isAttr);
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virtual void RaiseError(XML_Error err) { if (!raised_) raised_ = err; }
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virtual void GetPosition(unsigned long * line, unsigned long * column,
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unsigned long * byte_index);
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XML_Error RaisedError() { return raised_; }
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void Reset();
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void StartElement();
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void EndElement();
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void StartNamespace(const char * prefix, const char * ns);
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void SetPosition(int line, int column, long byte_index);
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private:
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XmlnsStack xmlnsstack_;
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XML_Error raised_;
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XML_Size line_number_;
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XML_Size column_number_;
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XML_Index byte_index_;
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};
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ParseContext context_;
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XML_Parser expat_;
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XmlParseHandler * pxph_;
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bool sentError_;
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};
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} // namespace buzz
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#endif // WEBRTC_LIBJINGLE_XMLLITE_XMLPARSER_H_
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