ref: refs/heads/master
commit 5c1bff19b78e1ec25dc4a6e0b10846be50950667
Author: Michael Andres
Date: Thu Feb 5 19:32:14 2009 +0100
Add xml::rnParse, a simple and lightweight xml::Reader interface.
---
zypp/CMakeLists.txt | 1 +
zypp/parser/xml/Parse.h | 115 +++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 116 insertions(+), 0 deletions(-)
diff --git a/zypp/CMakeLists.txt b/zypp/CMakeLists.txt
index 97a5cec..d6c5239 100644
--- a/zypp/CMakeLists.txt
+++ b/zypp/CMakeLists.txt
@@ -384,6 +384,7 @@ SET( zypp_parser_xml_SRCS
)
SET( zypp_parser_xml_HEADERS
+ parser/xml/Parse.h
parser/xml/Node.h
parser/xml/ParseDef.h
parser/xml/ParseDefConsume.h
diff --git a/zypp/parser/xml/Parse.h b/zypp/parser/xml/Parse.h
new file mode 100644
index 0000000..85ffc86
--- /dev/null
+++ b/zypp/parser/xml/Parse.h
@@ -0,0 +1,115 @@
+/*---------------------------------------------------------------------\
+| ____ _ __ __ ___ |
+| |__ / \ / / . \ . \ |
+| / / \ V /| _/ _/ |
+| / /__ | | | | | | |
+| /_____||_| |_| |_| |
+| |
+\---------------------------------------------------------------------*/
+/** \file zypp/parser/xml/Parse.h
+ *
+*/
+#ifndef ZYPP_PARSER_XML_PARSE_H
+#define ZYPP_PARSER_XML_PARSE_H
+
+#include <iosfwd>
+
+#include "zypp/parser/xml/Reader.h"
+#include "zypp/parser/xml/ParseDef.h"
+#include "zypp/parser/xml/ParseDefConsume.h"
+
+///////////////////////////////////////////////////////////////////
+namespace zypp
+{ /////////////////////////////////////////////////////////////////
+ ///////////////////////////////////////////////////////////////////
+ namespace xml
+ { /////////////////////////////////////////////////////////////////
+
+ /** Parse xml \c input_r and store data in \c data_r.
+ *
+ * \c _Data must be defaultconstructible and assignable.
+ *
+ * \c _Data::RootNode must be a \ref xml::ParseDef constructible
+ * from \c _Data&.
+ *
+ * \throws ParseDefException on parse errors.
+ *
+ * To parse a xml file like this:
+ * \code
+ * <test>
+ * <setup attr="13">value</setup>
+ * <list name="A"/>
+ * <list name="b"/>
+ * </test>
+ * \endcode
+ *
+ * You need something like this:
+ * \code
+ * struct XmlData
+ * {
+ * // data
+ * unsigned attr;
+ * std::string value;
+ * std:liststd::string names;
+ *
+ * public:
+ * // Convenience parsing to *this.
+ * void parse( const Pathname & path_r )
+ * { xml::rnParse( path_r, *this ); }
+ *
+ * public:
+ * // Parser description
+ * struct RootNode : public xml::ParseDef
+ * {
+ * RootNode( XmlData & data )
+ * : ParseDef( "test", MANDTAORY )
+ * , _data( data )
+ * {
+ * (*this)
+ * ("setup", MANDTAORY,
+ * xml::parseDefAssign( data.value )
+ * ( "attr", data.attr ) )
+ * // Each individual list entry is collected locally
+ * // and appended to the list after the node is done.
+ * ("list", MULTIPLE_OPTIONAL,
+ * xml::parseDefAssign( "name", _cname )
+ * >> bind( &RootNode::cdone, this, _1 ) )
+ * ;
+ * }
+ *
+ * void cdone( const xml::Node & node_r )
+ * {
+ * _data.push_back( _cname );
+ * _cname.clear(); // prepare for next
+ * }
+ *
+ * private:
+ * XmlData & _data; // stored just because notification callbacks are used.
+ * std::string _cname;
+ * };
+ * };
+ *
+ * XmlData xmlData;
+ * xmlData.parse( "/tmp/mytest.xml" );
+ * \endcode
+ */
+ template<class _Data>
+ inline void rnParse( const InputStream & input_r, _Data & data_r )
+ {
+ typedef typename _Data::RootNode RootNode;
+ _Data pdata;
+
+ xml::Reader reader( input_r );
+ RootNode rootNode( pdata );
+ rootNode.take( reader );
+
+ data_r = pdata;
+ }
+
+ /////////////////////////////////////////////////////////////////
+ } // namespace xml
+ ///////////////////////////////////////////////////////////////////
+ /////////////////////////////////////////////////////////////////
+} // namespace zypp
+///////////////////////////////////////////////////////////////////
+#endif // ZYPP_PARSER_XML_PARSEDEF_H
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