CMake/Source/cmXMLSafe.cxx

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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "cmXMLSafe.h"
#include <cmsys/ios/iostream>
#include <cmsys/ios/sstream>
#include <string.h>
#include <stdio.h>
//----------------------------------------------------------------------------
cmXMLSafe::cmXMLSafe(const char* s):
Data(s),
Size(static_cast<unsigned long>(strlen(s))),
DoQuotes(true)
{
}
//----------------------------------------------------------------------------
cmXMLSafe::cmXMLSafe(cmsys_stl::string const& s):
Data(s.c_str()),
Size(static_cast<unsigned long>(s.length())),
DoQuotes(true)
{
}
//----------------------------------------------------------------------------
cmXMLSafe& cmXMLSafe::Quotes(bool b)
{
this->DoQuotes = b;
return *this;
}
//----------------------------------------------------------------------------
cmsys_stl::string cmXMLSafe::str()
{
cmsys_ios::ostringstream ss;
ss << *this;
return ss.str();
}
//----------------------------------------------------------------------------
cmsys_ios::ostream& operator<<(cmsys_ios::ostream& os, cmXMLSafe const& self)
{
char const* first = self.Data;
char const* last = self.Data + self.Size;
for(char const* ci = first; ci != last; ++ci)
{
unsigned char c = static_cast<unsigned char>(*ci);
switch(c)
{
case '&': os << "&amp;"; break;
case '<': os << "&lt;"; break;
case '>': os << "&gt;"; break;
case '"': os << (self.DoQuotes? "&quot;" : "\""); break;
case '\'': os << (self.DoQuotes? "&apos;" : "'"); break;
case '\t': os << "\t"; break;
case '\n': os << "\n"; break;
case '\r': break; // Ignore CR
default:
if(c >= 0x20 && c <= 0x7f)
{
os.put(static_cast<char>(c));
}
else
{
// TODO: More complete treatment of program output character
// encoding. Instead of escaping these bytes, we should
// handle the current locale and its encoding.
char buf[16];
// http://www.w3.org/TR/REC-xml/#NT-Char
if(c >= 0x80)
{
sprintf(buf, "&#x%hx;", static_cast<unsigned short>(c));
}
else
{
// We cannot use "&#x%hx;" here because this value is not
// valid in XML. Instead use a human-readable hex value.
sprintf(buf, "&lt;0x%hx&gt;", static_cast<unsigned short>(c));
}
os << buf;
}
break;
}
}
return os;
}