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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* This file is part of the libvisio project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include "libvisio_xml.h"
#include <boost/lexical_cast.hpp>
#include "VSDTypes.h"
#include "libvisio_utils.h"
namespace libvisio
{
namespace
{
extern "C"
{
static int vsdxInputCloseFunc(void *)
{
return 0;
}
static int vsdxInputReadFunc(void *context, char *buffer, int len)
{
librevenge::RVNGInputStream *input = (librevenge::RVNGInputStream *)context;
if ((!input) || (!buffer) || (len < 0))
return -1;
if (input->isEnd())
return 0;
unsigned long tmpNumBytesRead = 0;
const unsigned char *tmpBuffer = input->read(len, tmpNumBytesRead);
if (tmpBuffer && tmpNumBytesRead)
memcpy(buffer, tmpBuffer, tmpNumBytesRead);
return tmpNumBytesRead;
}
#ifdef DEBUG
static void vsdxReaderErrorFunc(void *arg, const char *message, xmlParserSeverities severity, xmlTextReaderLocatorPtr)
#else
static void vsdxReaderErrorFunc(void *arg, const char *, xmlParserSeverities severity, xmlTextReaderLocatorPtr)
#endif
{
XMLErrorWatcher *const watcher = reinterpret_cast<XMLErrorWatcher *>(arg);
switch (severity)
{
case XML_PARSER_SEVERITY_VALIDITY_WARNING:
VSD_DEBUG_MSG(("Found xml parser severity validity warning %s\n", message));
break;
case XML_PARSER_SEVERITY_VALIDITY_ERROR:
VSD_DEBUG_MSG(("Found xml parser severity validity error %s\n", message));
break;
case XML_PARSER_SEVERITY_WARNING:
VSD_DEBUG_MSG(("Found xml parser severity warning %s\n", message));
break;
case XML_PARSER_SEVERITY_ERROR:
VSD_DEBUG_MSG(("Found xml parser severity error %s\n", message));
if (watcher)
watcher->setError();
break;
default:
break;
}
}
} // extern "C"
} // anonymous namespace
XMLErrorWatcher::XMLErrorWatcher()
: m_error(false)
{
}
bool XMLErrorWatcher::isError() const
{
return m_error;
}
void XMLErrorWatcher::setError()
{
m_error = true;
}
xmlTextReaderPtr xmlReaderForStream(librevenge::RVNGInputStream *input, const char *URL, const char *encoding, int options, XMLErrorWatcher *const watcher)
{
xmlTextReaderPtr reader = xmlReaderForIO(vsdxInputReadFunc, vsdxInputCloseFunc, (void *)input, URL, encoding, options);
xmlTextReaderSetErrorHandler(reader, vsdxReaderErrorFunc, watcher);
return reader;
}
Colour xmlStringToColour(const xmlChar *s)
{
if (xmlStrEqual(s, BAD_CAST("Themed")))
return Colour();
std::string str((const char *)s);
if (str[0] == '#')
{
if (str.length() != 7)
{
VSD_DEBUG_MSG(("Throwing XmlParserException\n"));
throw XmlParserException();
}
else
str.erase(str.begin());
}
else
{
if (str.length() != 6)
{
VSD_DEBUG_MSG(("Throwing XmlParserException\n"));
throw XmlParserException();
}
}
std::istringstream istr(str);
unsigned val = 0;
istr >> std::hex >> val;
return Colour((val & 0xff0000) >> 16, (val & 0xff00) >> 8, val & 0xff, 0);
}
Colour xmlStringToColour(const boost::shared_ptr<xmlChar> &s)
{
return xmlStringToColour(s.get());
}
long xmlStringToLong(const xmlChar *s)
{
using boost::lexical_cast;
using boost::bad_lexical_cast;
if (xmlStrEqual(s, BAD_CAST("Themed")))
return 0;
try
{
return boost::lexical_cast<long, const char *>((const char *)s);
}
catch (const boost::bad_lexical_cast &)
{
VSD_DEBUG_MSG(("Throwing XmlParserException\n"));
throw XmlParserException();
}
return 0;
}
long xmlStringToLong(const boost::shared_ptr<xmlChar> &s)
{
return xmlStringToLong(s.get());
}
double xmlStringToDouble(const xmlChar *s) try
{
if (xmlStrEqual(s, BAD_CAST("Themed")))
return 0.0;
return boost::lexical_cast<double, const char *>((const char *)s);
}
catch (const boost::bad_lexical_cast &)
{
VSD_DEBUG_MSG(("Throwing XmlParserException\n"));
throw XmlParserException();
}
double xmlStringToDouble(const boost::shared_ptr<xmlChar> &s)
{
return xmlStringToDouble(s.get());
}
bool xmlStringToBool(const xmlChar *s)
{
if (xmlStrEqual(s, BAD_CAST("Themed")))
return 0;
bool value = false;
if (xmlStrEqual(s, BAD_CAST("true")) || xmlStrEqual(s, BAD_CAST("1")))
value = true;
else if (xmlStrEqual(s, BAD_CAST("false")) || xmlStrEqual(s, BAD_CAST("0")))
value = false;
else
{
VSD_DEBUG_MSG(("Throwing XmlParserException\n"));
throw XmlParserException();
}
return value;
}
bool xmlStringToBool(const boost::shared_ptr<xmlChar> &s)
{
return xmlStringToBool(s.get());
}
} // namespace libvisio
/* vim:set shiftwidth=2 softtabstop=2 expandtab: */
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