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#ifndef XMLWRITER
#define XMLWRITER
#include "xmlnode.h"
#include "xmldocument.h"
/**
* Implements xml writing in the XML standard format. Also allows you to
* break that format and auto-indent your exported xml data for ease of
* reading. The auto-indenting will only be applied to sections that
* have no content of their own already. This means that except for
* whitespace all of your data will be preserved perfectly.
* You can create an XmlWriter object around a file, or access the static
* write function directly and just hand it a filename and a root XmlNode.
* When using an XmlWriter object the interface is identicle to that of
* the XmlDocument class, so reference that class for API info. However
* when the initial (or root) node is closed, and the document is finished
* the file will be created and written to automatically. The user can
* check to see if this is actually true by calling the isFinished
* function in the XmlDocument class.
*@author Mike Buland
*/
class XmlWriter : public XmlDocument
{
public:
/**
* Construct a standard XmlWriter.
*@param sIndent Set this to something other than NULL to include it as an
* indent before each node in the output that doesn't already have content.
* If you are using the whitespace stripping option in the XmlReader and set
* this to a tab or some spaces it will never effect the content of your
* file.
*/
XmlWriter( const char *sIndent=NULL, XmlNode *pRoot=NULL );
/**
* Destroy the writer.
*/
virtual ~XmlWriter();
/**
* This override of the parent class closeNode function calls the parent
* class, but also triggers a write operation when the final node is closed.
* This means that by checking the isCompleted() function the user may also
* check to see if their file has been written or not.
*/
void closeNode();
void write();
private:
std::string sIndent; /**< The indent string */
std::string escape( std::string sIn );
/**
* Write the file.
*@param pNode The root node
*@param sIndent The indent text.
*/
void write( XmlNode *pNode, const char *sIndent=NULL );
/**
* Write a node in the file, including children.
*@param pNode The node to write.
*@param nIndent The indent level (the number of times to include sIndent)
*@param sIndent The indent text.
*/
void writeNode( XmlNode *pNode, int nIndent, const char *sIndent );
/**
* Write the properties of a node.
*@param pNode The node who's properties to write.
*@param nIndent The indent level of the containing node
*@param sIndent The indent text.
*/
void writeNodeProps( XmlNode *pNode, int nIndent, const char *sIndent );
/**
* Called to write the actual indent.
*@param nIndent The indent level.
*@param sIndent The indent text.
*/
void writeIndent( int nIndent, const char *sIndent );
/**
* This is the function that must be overridden in order to use this class.
* It must write the null-terminated string sString, minus the mull,
* verbatum to it's output device. Adding extra characters for any reason
* will break the XML formatting.
*@param sString The string data to write to the output.
*/
virtual void writeString( const char *sString ) = 0;
};
#endif
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