timewarrior/src/gr.cpp
2015-12-31 15:26:25 -05:00

113 lines
3.2 KiB
C++

////////////////////////////////////////////////////////////////////////////////
//
// Copyright 2015 - 2016, Paul Beckingham, Federico Hernandez.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// http://www.opensource.org/licenses/mit-license.php
//
////////////////////////////////////////////////////////////////////////////////
#include <cmake.h>
#include <FS.h>
#include <Grammar.h>
#include <LR0.h>
#include <iostream>
#include <string>
#include <stdlib.h>
////////////////////////////////////////////////////////////////////////////////
void usage ()
{
std::cout << "\n"
<< "Usage: gr [options] <grammar> [<args>]\n"
<< "\n"
<< "Options are:\n"
<< " -h/--help Command usage\n"
<< " -d/--debug Debug mode\n"
<< "\n";
exit (-1);
}
////////////////////////////////////////////////////////////////////////////////
int main (int argc, char** argv)
{
// Process command line arguments
std::string grammarFile = "";
std::string commandLine = "";
bool debug = false;
for (int i = 1; i < argc; ++i)
{
if (argv[i][0] == '-')
{
if (!strcmp (argv[i], "-h")) usage ();
else if (!strcmp (argv[i], "--help")) usage ();
else if (!strcmp (argv[i], "-d")) debug = true;
else if (!strcmp (argv[i], "--debug")) debug = true;
else
{
std::cout << "Unrecognized option '" << argv[i] << "'" << std::endl;
usage ();
}
}
else if (grammarFile == "")
{
grammarFile = argv[i];
}
else
{
if (commandLine != "")
commandLine += " ";
commandLine += "'" + std::string (argv[i]) + "'";
}
}
// Display usage for incorrect command line.
if (grammarFile == "")
usage ();
try
{
File file (grammarFile);
Grammar grammar;
grammar.debug (debug);
grammar.loadFromFile (file);
// TODO Test commandLine against grammar.
if (commandLine != "")
{
LR0 lr0;
lr0.debug (debug);
lr0.initialize (grammar);
// TODO Run the parser.
}
}
catch (const std::string& error)
{
std::cout << error << "\n";
}
return 0;
}
////////////////////////////////////////////////////////////////////////////////