CMake/Source/cmXMLWriter.cxx
Daniel Pfeifer f6413400a0 Add cmXMLWriter class to consolidate XML generation
Explicitly track XML generation state (indentation, element closure,
etc.) so that clients can avoid manually/implicitly maintaining it.
2015-05-26 11:09:20 -04:00

135 lines
3.2 KiB
C++

/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2015 Daniel Pfeifer <daniel@pfeifer-mail.de>
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
#include "cmXMLWriter.h"
#include "cmXMLSafe.h"
#include <cassert>
#include <fstream>
cmXMLWriter::cmXMLWriter(std::ostream& output, std::size_t level)
: Output(output)
, Level(level)
, ElementOpen(false)
, BreakAttrib(false)
, IsContent(false)
{
}
cmXMLWriter::~cmXMLWriter()
{
assert(this->Elements.empty());
}
void cmXMLWriter::StartDocument(const char* encoding)
{
this->Output << "<?xml version=\"1.0\" encoding=\"" << encoding << "\"?>";
}
void cmXMLWriter::EndDocument()
{
assert(this->Elements.empty());
this->Output << '\n';
}
void cmXMLWriter::StartElement(std::string const& name)
{
this->CloseStartElement();
this->ConditionalLineBreak(!this->IsContent, this->Elements.size());
this->Output << '<' << name;
this->Elements.push(name);
this->ElementOpen = true;
this->BreakAttrib = false;
}
void cmXMLWriter::EndElement()
{
assert(!this->Elements.empty());
if (this->ElementOpen)
{
this->Output << "/>";
}
else
{
this->ConditionalLineBreak(!this->IsContent, this->Elements.size() - 1);
this->IsContent = false;
this->Output << "</" << this->Elements.top() << '>';
}
this->Elements.pop();
this->ElementOpen = false;
}
void cmXMLWriter::BreakAttributes()
{
this->BreakAttrib = true;
}
void cmXMLWriter::Comment(const char* comment)
{
this->CloseStartElement();
this->ConditionalLineBreak(!this->IsContent, this->Elements.size());
this->Output << "<!-- " << comment << " -->";
}
void cmXMLWriter::CData(std::string const& data)
{
this->PreContent();
this->Output << "<![CDATA[" << data << "]]>";
}
void cmXMLWriter::ProcessingInstruction(const char* target, const char* data)
{
this->CloseStartElement();
this->ConditionalLineBreak(!this->IsContent, this->Elements.size());
this->Output << "<?" << target << ' ' << data << "?>";
}
void cmXMLWriter::FragmentFile(const char* fname)
{
this->CloseStartElement();
std::ifstream fin(fname, std::ios::in | std::ios::binary);
this->Output << fin.rdbuf();
}
void cmXMLWriter::ConditionalLineBreak(bool condition, std::size_t indent)
{
if (condition)
{
this->Output << '\n' << std::string(indent + this->Level, '\t');
}
}
void cmXMLWriter::PreAttribute()
{
assert(this->ElementOpen);
this->ConditionalLineBreak(this->BreakAttrib, this->Elements.size());
if (!this->BreakAttrib)
{
this->Output << ' ';
}
}
void cmXMLWriter::PreContent()
{
this->CloseStartElement();
this->IsContent = true;
}
void cmXMLWriter::CloseStartElement()
{
if (this->ElementOpen)
{
this->ConditionalLineBreak(this->BreakAttrib, this->Elements.size());
this->Output << '>';
this->ElementOpen = false;
}
}