| /* |
| * libjingle |
| * Copyright 2004--2005, Google Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef TALK_XMLLITE_XMLPARSER_H_ |
| #define TALK_XMLLITE_XMLPARSER_H_ |
| |
| #include <string> |
| |
| #include "talk/xmllite/xmlnsstack.h" |
| #ifdef EXPAT_RELATIVE_PATH |
| #include "expat.h" |
| #else |
| #include "third_party/expat/v2_0_1/Source/lib/expat.h" |
| #endif // EXPAT_RELATIVE_PATH |
| |
| struct XML_ParserStruct; |
| typedef struct XML_ParserStruct* XML_Parser; |
| |
| namespace buzz { |
| |
| class XmlParseHandler; |
| class XmlParseContext; |
| class XmlParser; |
| |
| class XmlParseContext { |
| public: |
| virtual ~XmlParseContext() {} |
| virtual QName ResolveQName(const char * qname, bool isAttr) = 0; |
| virtual void RaiseError(XML_Error err) = 0; |
| virtual void GetPosition(unsigned long * line, unsigned long * column, |
| unsigned long * byte_index) = 0; |
| }; |
| |
| class XmlParseHandler { |
| public: |
| virtual ~XmlParseHandler() {} |
| virtual void StartElement(XmlParseContext * pctx, |
| const char * name, const char ** atts) = 0; |
| virtual void EndElement(XmlParseContext * pctx, |
| const char * name) = 0; |
| virtual void CharacterData(XmlParseContext * pctx, |
| const char * text, int len) = 0; |
| virtual void Error(XmlParseContext * pctx, |
| XML_Error errorCode) = 0; |
| }; |
| |
| class XmlParser { |
| public: |
| static void ParseXml(XmlParseHandler * pxph, std::string text); |
| |
| explicit XmlParser(XmlParseHandler * pxph); |
| bool Parse(const char * data, size_t len, bool isFinal); |
| void Reset(); |
| virtual ~XmlParser(); |
| |
| // expat callbacks |
| void ExpatStartElement(const char * name, const char ** atts); |
| void ExpatEndElement(const char * name); |
| void ExpatCharacterData(const char * text, int len); |
| void ExpatXmlDecl(const char * ver, const char * enc, int standalone); |
| |
| private: |
| |
| class ParseContext : public XmlParseContext { |
| public: |
| ParseContext(XmlParser * parser); |
| virtual ~ParseContext(); |
| virtual QName ResolveQName(const char * qname, bool isAttr); |
| virtual void RaiseError(XML_Error err) { if (!raised_) raised_ = err; } |
| virtual void GetPosition(unsigned long * line, unsigned long * column, |
| unsigned long * byte_index); |
| XML_Error RaisedError() { return raised_; } |
| void Reset(); |
| |
| void StartElement(); |
| void EndElement(); |
| void StartNamespace(const char * prefix, const char * ns); |
| void SetPosition(int line, int column, long byte_index); |
| |
| private: |
| const XmlParser * parser_; |
| XmlnsStack xmlnsstack_; |
| XML_Error raised_; |
| XML_Size line_number_; |
| XML_Size column_number_; |
| XML_Index byte_index_; |
| }; |
| |
| ParseContext context_; |
| XML_Parser expat_; |
| XmlParseHandler * pxph_; |
| bool sentError_; |
| }; |
| |
| } // namespace buzz |
| |
| #endif // TALK_XMLLITE_XMLPARSER_H_ |