TiXmlPrinter Class Reference

#include <tinyxml.h>

Inheritance diagram for TiXmlPrinter:

Public Member Functions
const char *	CStr ()
	Return the result. More...
const char *	Indent ()
	Query the indention string. More...
const char *	LineBreak ()
	Query the current line breaking string. More...
void	SetIndent (const char *_indent)
void	SetLineBreak (const char *_lineBreak)
void	SetStreamPrinting ()
size_t	Size ()
	Return the length of the result string. More...
const std::string &	Str ()
	Return the result. More...
	TiXmlPrinter ()
virtual bool	Visit (const TiXmlDeclaration &declaration)
	Visit a declaration. More...
virtual bool	Visit (const TiXmlText &text)
	Visit a text node. More...
virtual bool	Visit (const TiXmlComment &comment)
	Visit a comment node. More...
virtual bool	Visit (const TiXmlUnknown &unknown)
	Visit an unknow node. More...
virtual bool	VisitEnter (const TiXmlDocument &doc)
	Visit a document. More...
virtual bool	VisitEnter (const TiXmlElement &element, const TiXmlAttribute *firstAttribute)
	Visit an element. More...
virtual bool	VisitExit (const TiXmlDocument &doc)
	Visit a document. More...
virtual bool	VisitExit (const TiXmlElement &element)
	Visit an element. More...
Public Member Functions inherited from TiXmlVisitor
virtual	~TiXmlVisitor ()

Private Member Functions
void	DoIndent ()
void	DoLineBreak ()

Private Attributes
std::string	buffer
int	depth
std::string	indent
std::string	lineBreak
bool	simpleTextPrint

Detailed Description

Print to memory functionality. The TiXmlPrinter is useful when you need to:

1. Print to memory (especially in non-STL mode)
2. Control formatting (line endings, etc.)

When constructed, the TiXmlPrinter is in its default "pretty printing" mode. Before calling Accept() you can call methods to control the printing of the XML document. After TiXmlNode::Accept() is called, the printed document can be accessed via the CStr(), Str(), and Size() methods.

TiXmlPrinter uses the Visitor API.

TiXmlPrinter printer;
printer.SetIndent( "\t" );

doc.Accept( &printer );
fprintf( stdout, "%s", printer.CStr() );

Definition at line 1736 of file tinyxml.h.

Constructor & Destructor Documentation

TiXmlPrinter::TiXmlPrinter ( )

inline

Definition at line 1739 of file tinyxml.h.

                   : depth( 0 ), simpleTextPrint( false ),
                     buffer(), indent( "    " ), lineBreak( "\n" ) {}

Member Function Documentation

const char* TiXmlPrinter::CStr ( )

inline

Return the result.

Definition at line 1774 of file tinyxml.h.

References buffer.

{ return buffer.c_str(); }

void TiXmlPrinter::DoIndent ( )

inlineprivate

Definition at line 1784 of file tinyxml.h.

References buffer, depth, i, and indent.

Referenced by Visit(), VisitEnter(), and VisitExit().

                    {
        for( int i=0; i<depth; ++i )
            buffer += indent;
    }

void TiXmlPrinter::DoLineBreak ( )

inlineprivate

Definition at line 1788 of file tinyxml.h.

References buffer, and lineBreak.

Referenced by Visit(), VisitEnter(), and VisitExit().

                       {
        buffer += lineBreak;
    }

const char* TiXmlPrinter::Indent ( )

inline

Query the indention string.

Definition at line 1758 of file tinyxml.h.

References indent.

{ return indent.c_str(); }

const char* TiXmlPrinter::LineBreak ( )

inline

Query the current line breaking string.

Definition at line 1765 of file tinyxml.h.

References lineBreak.

{ return lineBreak.c_str(); }

void TiXmlPrinter::SetIndent ( const char *  _indent )

inline

Set the indent characters for printing. By default 4 spaces but tab () is also useful, or null/empty string for no indentation.

Definition at line 1756 of file tinyxml.h.

References indent.

{ indent = _indent ? _indent : "" ; }

void TiXmlPrinter::SetLineBreak ( const char *  _lineBreak )

inline

Set the line breaking string. By default set to newline (
). Some operating systems prefer other characters, or can be set to the null/empty string for no indenation.

Definition at line 1763 of file tinyxml.h.

References lineBreak.

{ lineBreak = _lineBreak ? _lineBreak : ""; }

void TiXmlPrinter::SetStreamPrinting ( )

inline

Switch over to "stream printing" which is the most dense formatting without linebreaks. Common when the XML is needed for network transmission.

Definition at line 1770 of file tinyxml.h.

References indent, and lineBreak.

Referenced by operator<<().

                                                    { indent = "";
                                                      lineBreak = "";
                                                    }

size_t TiXmlPrinter::Size ( )

inline

Return the length of the result string.

Definition at line 1776 of file tinyxml.h.

References buffer.

{ return buffer.size(); }

const std::string& TiXmlPrinter::Str ( )

inline

Return the result.

Definition at line 1780 of file tinyxml.h.

Referenced by operator<<().

{ return buffer; }

bool TiXmlPrinter::Visit ( const TiXmlDeclaration &  )

virtual

Visit a declaration.

Reimplemented from TiXmlVisitor.

Definition at line 1877 of file tinyxml.cc.

References buffer, DoIndent(), DoLineBreak(), and TiXmlDeclaration::Print().

{
    DoIndent();
    declaration.Print( 0, 0, &buffer );
    DoLineBreak();
    return true;
}

bool TiXmlPrinter::Visit ( const TiXmlText &  )

virtual

Visit a text node.

Reimplemented from TiXmlVisitor.

Definition at line 1849 of file tinyxml.cc.

References buffer, TiXmlText::CDATA(), DoIndent(), DoLineBreak(), TiXmlBase::EncodeString(), simpleTextPrint, TIXML_STRING, TiXmlNode::Value(), and TiXmlNode::ValueTStr().

{
    if ( text.CDATA() )
    {
        DoIndent();
        buffer += "<![CDATA[";
        buffer += text.Value();
        buffer += "]]>";
        DoLineBreak();
    }
    else if ( simpleTextPrint )
    {
        TIXML_STRING str;
        TiXmlBase::EncodeString( text.ValueTStr(), &str );
        buffer += str;
    }
    else
    {
        DoIndent();
        TIXML_STRING str;
        TiXmlBase::EncodeString( text.ValueTStr(), &str );
        buffer += str;
        DoLineBreak();
    }
    return true;
}

bool TiXmlPrinter::Visit ( const TiXmlComment &  )

virtual

Visit a comment node.

Reimplemented from TiXmlVisitor.

Definition at line 1886 of file tinyxml.cc.

References buffer, DoIndent(), DoLineBreak(), and TiXmlNode::Value().

{
    DoIndent();
    buffer += "<!--";
    buffer += comment.Value();
    buffer += "-->";
    DoLineBreak();
    return true;
}

bool TiXmlPrinter::Visit ( const TiXmlUnknown &  )

virtual

Visit an unknow node.

Reimplemented from TiXmlVisitor.

Definition at line 1897 of file tinyxml.cc.

References buffer, DoIndent(), DoLineBreak(), and TiXmlNode::Value().

{
    DoIndent();
    buffer += "<";
    buffer += unknown.Value();
    buffer += ">";
    DoLineBreak();
    return true;
}

bool TiXmlPrinter::VisitEnter ( const TiXmlDocument &  )

virtual

Visit a document.

Reimplemented from TiXmlVisitor.

Definition at line 1776 of file tinyxml.cc.

{
    return true;
}

bool TiXmlPrinter::VisitEnter ( const TiXmlElement &  , const TiXmlAttribute *    )

virtual

Visit an element.

Reimplemented from TiXmlVisitor.

Definition at line 1786 of file tinyxml.cc.

References buffer, TiXmlText::CDATA(), depth, DoIndent(), DoLineBreak(), edm::false, TiXmlNode::FirstChild(), TiXmlNode::LastChild(), TiXmlAttribute::Next(), simpleTextPrint, TiXmlNode::ToText(), and TiXmlNode::Value().

{
    DoIndent();
    buffer += "<";
    buffer += element.Value();

    for( const TiXmlAttribute* attrib = firstAttribute; attrib; attrib = attrib->Next() )
    {
        buffer += " ";
        attrib->Print( 0, 0, &buffer );
    }

    if ( !element.FirstChild() )
    {
        buffer += " />";
        DoLineBreak();
    }
    else
    {
        buffer += ">";
        if (    element.FirstChild()->ToText()
              && element.LastChild() == element.FirstChild()
              && element.FirstChild()->ToText()->CDATA() == false )
        {
            simpleTextPrint = true;
            // no DoLineBreak()!
        }
        else
        {
            DoLineBreak();
        }
    }
    ++depth;
    return true;
}

bool TiXmlPrinter::VisitExit ( const TiXmlDocument &  )

virtual

Visit a document.

Reimplemented from TiXmlVisitor.

Definition at line 1781 of file tinyxml.cc.

{
    return true;
}

bool TiXmlPrinter::VisitExit ( const TiXmlElement &  )

virtual

Visit an element.

Reimplemented from TiXmlVisitor.

Definition at line 1823 of file tinyxml.cc.

References buffer, depth, DoIndent(), DoLineBreak(), TiXmlNode::FirstChild(), simpleTextPrint, and TiXmlNode::Value().

{
    --depth;
    if ( !element.FirstChild() )
    {
        // nothing.
    }
    else
    {
        if ( simpleTextPrint )
        {
            simpleTextPrint = false;
        }
        else
        {
            DoIndent();
        }
        buffer += "</";
        buffer += element.Value();
        buffer += ">";
        DoLineBreak();
    }
    return true;
}

Member Data Documentation

std::string TiXmlPrinter::buffer

private

Definition at line 1794 of file tinyxml.h.

Referenced by CStr(), DoIndent(), DoLineBreak(), Size(), Visit(), VisitEnter(), and VisitExit().

int TiXmlPrinter::depth

private

Definition at line 1792 of file tinyxml.h.

Referenced by dqm_interfaces.DirID::__eq__(), dqm_interfaces.DirID::__repr__(), DoIndent(), dqm_interfaces.DirWalkerDB::run(), VisitEnter(), and VisitExit().

std::string TiXmlPrinter::indent

private

Definition at line 1795 of file tinyxml.h.

Referenced by DoIndent(), Indent(), SetIndent(), and SetStreamPrinting().

std::string TiXmlPrinter::lineBreak

private

Definition at line 1796 of file tinyxml.h.

Referenced by DoLineBreak(), LineBreak(), SetLineBreak(), and SetStreamPrinting().

bool TiXmlPrinter::simpleTextPrint

private

Definition at line 1793 of file tinyxml.h.

Referenced by Visit(), VisitEnter(), and VisitExit().