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/**************************************************************************
* *
* Regina - A Normal Surface Theory Calculator *
* Combine several data files into a single larger data file *
* *
* Copyright (c) 1999-2008, Ben Burton *
* For further details contact Ben Burton (bab@debian.org). *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License as *
* published by the Free Software Foundation; either version 2 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 *
* General Public License for more details. *
* *
* You should have received a copy of the GNU General Public *
* License along with this program; if not, write to the Free *
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, *
* MA 02110-1301, USA. *
* *
**************************************************************************/
/* end stub */
#include <cstdlib>
#include <cstring>
#include <list>
#include "file/nxmlfile.h"
#include "packet/ncontainer.h"
void usage(const char* progName, const std::string& error = std::string()) {
if (! error.empty())
std::cerr << error << "\n\n";
std::cerr << "Usage:\n";
std::cerr << " " << progName <<
" [ -o <output-file> ] <data-file> ...\n";
std::cerr << std::endl;
std::cerr << " -o <output-file> : Write to the given data file "
"(otherwise standard\n";
std::cerr << " output is used)\n";
exit(1);
}
int main(int argc, char* argv[]) {
// Parse the command line.
std::list<std::string> files;
std::string outputFile;
for (int i = 1; i < argc; i++) {
if (*argv[i] == '-') {
// Option.
// Is it an argument we don't understand?
if (strcmp(argv[i], "-o"))
usage(argv[0], std::string("Invalid option: ") + argv[i]);
// Are we missing the actual output filename?
if (i == argc - 1)
usage(argv[0], "Option -o is missing an output filename.");
// Have we already specified an output filename?
if (! outputFile.empty())
usage(argv[0],
"More than one output filename has been supplied.");
// Suck in the output filename.
outputFile = argv[++i];
} else if (*argv[i]) {
// Just an ordinary filename.
files.push_back(argv[i]);
} else
usage(argv[0], "Empty arguments are not allowed.");
}
if (files.empty())
usage(argv[0], "No data files have been supplied.");
// Read the input files one by one.
regina::NPacket* ans = new regina::NContainer();
ans->setPacketLabel("Combined Data");
bool error = false;
regina::NPacket* data;
for(std::list<std::string>::const_iterator it = files.begin();
it != files.end(); it++) {
data = regina::readFileMagic(*it);
if (!data) {
std::cerr << "File " << *it << " could not be read.\n";
error = true;
continue;
}
ans->insertChildLast(data);
}
// Tidy up the final data file and write it.
ans->makeUniqueLabels(0);
if (outputFile.empty())
ans->writeXMLFile(std::cout);
else if (! regina::writeXMLFile(outputFile.c_str(), ans))
std::cerr << "File " << outputFile << " could not be written.\n";
delete ans;
return (error ? 1 : 0);
}
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