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https://github.com/moses-smt/mosesdecoder.git
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94 lines
3.1 KiB
C++
94 lines
3.1 KiB
C++
/***********************************************************************
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Moses - statistical machine translation system
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Copyright (C) 2006-2012 University of Edinburgh
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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***********************************************************************/
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#pragma once
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#ifndef PCFG_TOOL_H_
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#define PCFG_TOOL_H_
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#include <cstdlib>
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#include <fstream>
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#include <iostream>
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#include <string>
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#include <boost/program_options/cmdline.hpp>
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namespace MosesTraining {
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namespace Syntax {
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namespace PCFG {
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class Tool {
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public:
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virtual ~Tool() {}
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const std::string &name() const { return name_; }
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virtual int Main(int argc, char *argv[]) = 0;
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protected:
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Tool(const std::string &name) : name_(name) {}
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// Returns the boost::program_options style that should be used by all tools.
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static int CommonOptionStyle() {
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namespace cls = boost::program_options::command_line_style;
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return cls::default_style & (~cls::allow_guessing);
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}
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void Warn(const std::string &msg) const {
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std::cerr << name_ << ": warning: " << msg << std::endl;
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}
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void Error(const std::string &msg) const {
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std::cerr << name_ << ": error: " << msg << std::endl;
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std::exit(1);
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}
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// Initialises the tool's main input stream and returns a reference that is
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// valid for the remainder of the tool's lifetime. If filename is empty or
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// "-" then input is standard input; otherwise it is the named file. Calls
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// Error() if the file cannot be opened for reading.
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std::istream &OpenInputOrDie(const std::string &filename);
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// Initialises the tool's main output stream and returns a reference that is
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// valid for the remainder of the tool's lifetime. If filename is empty or
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// "-" then output is standard output; otherwise it is the named file. Calls
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// Error() if the file cannot be opened for writing.
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std::ostream &OpenOutputOrDie(const std::string &filename);
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// Opens the named input file using the supplied ifstream. Calls Error() if
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// the file cannot be opened for reading.
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void OpenNamedInputOrDie(const std::string &, std::ifstream &);
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// Opens the named output file using the supplied ofstream. Calls Error() if
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// the file cannot be opened for writing.
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void OpenNamedOutputOrDie(const std::string &, std::ofstream &);
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private:
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std::string name_;
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std::istream *input_ptr_;
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std::ifstream input_file_stream_;
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std::ostream *output_ptr_;
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std::ofstream output_file_stream_;
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};
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} // namespace PCFG
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} // namespace Syntax
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} // namespace MosesTraining
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#endif
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