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/*
* XLSReader.cpp
*
* Copyright (C) 2009 Matthias Schiffer <matthias@gamezock.de>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "XLSReader.h"
#include "XLSSheet.h"
#include <cstdio>
#include <boost/filesystem.hpp>
#include <boost/regex.hpp>
namespace Mad {
namespace Client {
xmlNodePtr XLSReader::findNode(xmlNodePtr parent, const Core::String &name) {
if(!parent)
return 0;
for(xmlNodePtr entry = parent->children; entry != 0; entry = entry->next) {
if(entry->type == XML_ELEMENT_NODE && !xmlStrcmp(entry->name, (xmlChar*)name.toUTF8().c_str())) {
return entry;
}
}
return 0;
}
XLSReader::XLSReader(const std::string &filename) throw (Core::Exception) {
static const std::string XLHTML_EXEC = "xlhtml -xml";
static const boost::regex r("'");
if(!boost::filesystem::exists(filename))
throw Core::Exception(Core::Exception::NOT_FOUND);
std::string escapedFilename = boost::regex_replace(filename, r, "\\\\'", boost::match_default);
std::FILE *stream = popen((XLHTML_EXEC + " '" + escapedFilename + "' 2>/dev/null").c_str(), "r");
std::string data;
while(!std::feof(stream)) {
char buffer[1024];
size_t bytes = std::fread(buffer, 1, sizeof(buffer), stream);
if(!bytes)
break;
data += std::string(buffer, bytes);
}
int ret = pclose(stream);
if(!WIFEXITED(ret) || WEXITSTATUS(ret) != 0) {
throw Core::Exception(Core::Exception::INVALID_INPUT);
}
doc.reset(xmlParseMemory(data.c_str(), data.length()), xmlFreeDoc);
if(!doc) {
throw Core::Exception(Core::Exception::NOT_AVAILABLE);
}
xmlNodePtr sheetsNode = findNode(xmlDocGetRootElement(doc.get()), "sheets");
if(!sheetsNode) {
throw Core::Exception(Core::Exception::NOT_AVAILABLE);
}
for(xmlNodePtr entry = sheetsNode->children; entry != 0; entry = entry->next) {
if(entry->type == XML_ELEMENT_NODE && !xmlStrcmp(entry->name, (xmlChar*)"sheet"))
sheets.push_back(boost::shared_ptr<XLSSheet>(new XLSSheet(doc, entry)));
}
}
}
}
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