catch2/include/internal/catch_xmlwriter.hpp

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/*
* Created by Phil on 09/12/2010.
* Copyright 2010 Two Blue Cubes Ltd. All rights reserved.
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef TWOBLUECUBES_CATCH_XMLWRITER_HPP_INCLUDED
#define TWOBLUECUBES_CATCH_XMLWRITER_HPP_INCLUDED
#include <sstream>
#include <string>
#include <vector>
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namespace Catch {
class XmlWriter {
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public:
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class ScopedElement {
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public:
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ScopedElement( XmlWriter* writer )
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: m_writer( writer )
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{}
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ScopedElement( const ScopedElement& other )
: m_writer( other.m_writer ){
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other.m_writer = NULL;
}
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~ScopedElement() {
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if( m_writer )
m_writer->endElement();
}
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ScopedElement& writeText( const std::string& text ) {
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m_writer->writeText( text );
return *this;
}
template<typename T>
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ScopedElement& writeAttribute( const std::string& name, const T& attribute ) {
m_writer->writeAttribute( name, attribute );
return *this;
}
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private:
mutable XmlWriter* m_writer;
};
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XmlWriter()
: m_tagIsOpen( false ),
m_needsNewline( false ),
m_os( &std::cout )
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{}
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XmlWriter( std::ostream& os )
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: m_tagIsOpen( false ),
m_needsNewline( false ),
m_os( &os )
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{}
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~XmlWriter() {
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while( !m_tags.empty() )
endElement();
}
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XmlWriter& operator = ( const XmlWriter& other ) {
XmlWriter temp( other );
swap( temp );
return *this;
}
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void swap( XmlWriter& other ) {
std::swap( m_tagIsOpen, other.m_tagIsOpen );
std::swap( m_needsNewline, other.m_needsNewline );
std::swap( m_tags, other.m_tags );
std::swap( m_indent, other.m_indent );
std::swap( m_os, other.m_os );
}
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XmlWriter& startElement( const std::string& name ) {
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ensureTagClosed();
newlineIfNecessary();
stream() << m_indent << "<" << name;
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m_tags.push_back( name );
m_indent += " ";
m_tagIsOpen = true;
return *this;
}
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ScopedElement scopedElement( const std::string& name ) {
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ScopedElement scoped( this );
startElement( name );
return scoped;
}
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XmlWriter& endElement() {
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newlineIfNecessary();
m_indent = m_indent.substr( 0, m_indent.size()-2 );
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if( m_tagIsOpen ) {
stream() << "/>\n";
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m_tagIsOpen = false;
}
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else {
stream() << m_indent << "</" << m_tags.back() << ">\n";
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}
m_tags.pop_back();
return *this;
}
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XmlWriter& writeAttribute( const std::string& name, const std::string& attribute ) {
if( !name.empty() && !attribute.empty() ) {
stream() << " " << name << "=\"";
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writeEncodedText( attribute );
stream() << "\"";
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}
return *this;
}
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XmlWriter& writeAttribute( const std::string& name, bool attribute ) {
stream() << " " << name << "=\"" << ( attribute ? "true" : "false" ) << "\"";
return *this;
}
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template<typename T>
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XmlWriter& writeAttribute( const std::string& name, const T& attribute ) {
if( !name.empty() )
stream() << " " << name << "=\"" << attribute << "\"";
return *this;
}
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XmlWriter& writeText( const std::string& text ) {
if( !text.empty() ){
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bool tagWasOpen = m_tagIsOpen;
ensureTagClosed();
if( tagWasOpen )
stream() << m_indent;
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writeEncodedText( text );
m_needsNewline = true;
}
return *this;
}
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XmlWriter& writeComment( const std::string& text ) {
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ensureTagClosed();
stream() << m_indent << "<!--" << text << "-->";
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m_needsNewline = true;
return *this;
}
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XmlWriter& writeBlankLine() {
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ensureTagClosed();
stream() << "\n";
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return *this;
}
private:
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std::ostream& stream() {
return *m_os;
}
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void ensureTagClosed() {
if( m_tagIsOpen ) {
stream() << ">\n";
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m_tagIsOpen = false;
}
}
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void newlineIfNecessary() {
if( m_needsNewline ) {
stream() << "\n";
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m_needsNewline = false;
}
}
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void writeEncodedText( const std::string& text ) {
static const char* charsToEncode = "<&\"";
std::string mtext = text;
std::string::size_type pos = mtext.find_first_of( charsToEncode );
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while( pos != std::string::npos ) {
stream() << mtext.substr( 0, pos );
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switch( mtext[pos] ) {
case '<':
stream() << "&lt;";
break;
case '&':
stream() << "&amp;";
break;
case '\"':
stream() << "&quot;";
break;
}
mtext = mtext.substr( pos+1 );
pos = mtext.find_first_of( charsToEncode );
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}
stream() << mtext;
}
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bool m_tagIsOpen;
bool m_needsNewline;
std::vector<std::string> m_tags;
std::string m_indent;
std::ostream* m_os;
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};
}
#endif // TWOBLUECUBES_CATCH_XMLWRITER_HPP_INCLUDED