//==============================================================================
//
// Copyright (c) 2015-
// Authors:
// * Joachim Klein <klein@tcs.inf.tu-dresden.de>
// * David Mueller <david.mueller@tcs.inf.tu-dresden.de>
//
//------------------------------------------------------------------------------
//
// This file is part of the cpphoafparser library,
// http://automata.tools/hoa/cpphoafparser/
//
// The cpphoafparser library 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 2.1 of the License, or (at your option) any later version.
//
// The cpphoafparser library 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 library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
//==============================================================================
#include <queue>
#include <iostream>
#include <fstream>
#include "cpphoafparser/consumer/hoa_consumer_print.hh"
#include "cpphoafparser/consumer/hoa_consumer_null.hh"
#include "cpphoafparser/consumer/hoa_intermediate_trace.hh"
#include "cpphoafparser/consumer/hoa_intermediate_resolve_aliases.hh"
#include "cpphoafparser/parser/hoa_parser.hh"
using namespace cpphoafparser;
/** The version */
static const char* version = "0.99.2";
/** Print version to out, verbose? */
static void printVersion(std::ostream& out, bool verbose) {
out << "cpphoafparser library - command line tool (version " << version << ")" << std::endl;
out << " (C) Copyright 2015- Joachim Klein, David Mueller" << std::endl;
out << " http://automata.tools/hoa/cpphoafparser/" << std::endl;
out << std::endl;
if (verbose) {
out << "The cpphoafparser library is free software; you can redistribute it and/or" << std::endl;
out << "modify it under the terms of the GNU Lesser General Public" << std::endl;
out << "License as published by the Free Software Foundation; either" << std::endl;
out << "version 2.1 of the License, or (at your option) any later version." << std::endl;
out << std::endl;
out << "The cpphoafparser library is distributed in the hope that it will be useful," << std::endl;
out << "but WITHOUT ANY WARRANTY; without even the implied warranty of" << std::endl;
out << "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU" << std::endl;
out << "Lesser General Public License for more details." << std::endl;
}
}
/** Print usage information, and optionally error message */
static unsigned int usage(const std::string& error = "") {
printVersion(std::cerr, false);
if (error != "") {
std::cerr << "Command-line arguments error: " << error << std::endl;
std::cerr << "Use argument 'help' to get usage information." << std::endl;
return 2;
}
std::cerr << "Arguments:" << std::endl;
std::cerr << " command [flags]* file" << std::endl << std::endl;
std::cerr << " Valid commands:" << std::endl;
std::cerr << " parse Parse the HOAF file and check for errors" << std::endl;
std::cerr << " print Parse the HOAF file, perform any specified transformations" << std::endl;
std::cerr << " and print the parsed automata to standard out" << std::endl;
std::cerr << " version Print the version and exit" << std::endl;
std::cerr << " help Print this help screen and exit" << std::endl;
std::cerr << std::endl;
std::cerr << " file can be a filename or - to request reading from standard input" << std::endl;
std::cerr << std::endl;
std::cerr << " Valid flags:" << std::endl;
std::cerr << " --resolve-aliases Resolve aliases" << std::endl;
std::cerr << " --no-validate Do not perform semantic validation" << std::endl;
std::cerr << " --trace Debugging: Trace the function calls to HOAConsumer" << std::endl;
// std::cerr << " --verbose Increase verbosity" << std::endl;
return (error != "" ? 2 : 0);
}
int main(int argc, char* argv[]) {
bool verbose = false;
bool resolve_aliases = false;
bool trace = false;
bool validate = true;
std::queue<std::string> arguments;
for (int i=1; i<argc; i++) {
arguments.push(argv[i]);
}
if (arguments.size() == 0) {
return usage();
}
std::string command = arguments.front();
arguments.pop();
if (command == "help" || command == "--help") {
return usage();
}
if (command == "version") {
printVersion(std::cout, true);
return 0;
}
while (!arguments.empty()) {
const std::string& arg = arguments.front();
if (arg.compare(0, 2, "--") == 0) {
// is an argument
arguments.pop();
if (arg == "--resolve-aliases") {
resolve_aliases = true;
} else if (arg == "--trace") {
trace = true;
} else if (arg == "--no-validate") {
validate = false;
} else if (arg == "--") {
// end of arguments
break;
} else {
return usage("Unknown argument "+arg);
}
}
// not an argument
break;
}
if (arguments.empty()) {
return usage("Missing filename (or - for standard input)");
}
if (arguments.size() > 1) {
return usage("More than one filename, currently only supports single file");
}
std::string filename = arguments.front();
arguments.pop();
std::shared_ptr<std::ifstream> f_in;
if (filename != "-") {
f_in.reset(new std::ifstream(filename.c_str()));
if (!*f_in) {
std::cerr << "Error opening file " + filename << std::endl;
return 1;
}
}
std::istream& in = (filename == "-" ? std::cin : *f_in);
if (verbose) {
std::cerr << "Reading from " + (filename != "-" ? "file "+filename : "standard input") << std::endl;
}
HOAConsumer::ptr consumer;
if (command == "print") {
consumer.reset(new HOAConsumerPrint(std::cout));
} else if (command == "parse") {
consumer.reset(new HOAConsumerNull());
} else {
return usage("Unknown command: "+command);
}
if (resolve_aliases) {
consumer.reset(new HOAIntermediateResolveAliases(consumer));
}
if (trace) {
consumer.reset(new HOAIntermediateTrace(consumer));
}
try {
HOAParser::parse(in, consumer, validate);
if (command == "parse") {
std::cout << "Parsing OK" << std::endl;
}
return 0;
} catch (HOAParserException& e) {
std::cerr << e.what() << std::endl;
} catch (HOAConsumerException& e) {
std::cerr << "Exception: " << e.what() << std::endl;
}
return 1;
}