timewarrior/src/timew.cpp
2015-12-26 22:31:11 -05:00

105 lines
3.2 KiB
C++

////////////////////////////////////////////////////////////////////////////////
//
// Copyright 2015, 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 <Grammar.h>
#include <LR0.h>
#include <iostream>
#include <new>
#include <cstring>
////////////////////////////////////////////////////////////////////////////////
int main (int argc, const char** argv)
{
int status = 0;
bool debug = true;
// Lightweight version checking that doesn't require initialization or any I/O.
if (argc == 2 && ! strcmp (argv[1], "--version"))
{
std::cout << VERSION << "\n";
}
else
{
try
{
// TODO Load configuration ~/.timewrc || $TIMEWRC.
// TODO Load CLI grammar.
// TODO Load from string, else file on config override.
// TODO Migrate from loading a grammar from file, to a default string.
File cliFile ("./cli.grammar");
Grammar cliGrammar;
cliGrammar.debug (debug);
cliGrammar.loadFromFile (cliFile);
// Instantiate the parser.
LR0 cliParser;
cliParser.debug (debug);
cliParser.createParseTables (cliGrammar);
// TODO Parse CLI.
// TODO Load rule grammar.
File ruleFile ("./rule.grammar");
Grammar ruleGrammar;
ruleGrammar.debug (debug);
ruleGrammar.loadFromFile (ruleFile);
// Instantiate the parser.
LR0 ruleParser;
ruleParser.debug (debug);
ruleParser.createParseTables (ruleGrammar);
// TODO Load rules.
// TODO Parse rules.
// TODO Dispatch to commands.
}
catch (const std::string& error)
{
std::cerr << error << "\n";
status = -1;
}
catch (std::bad_alloc& error)
{
std::cerr << "Error: Memory allocation failed: " << error.what () << "\n";
status = -3;
}
catch (...)
{
std::cerr << "Error: Unknown problem, please report.\n";
status = -2;
}
}
return status;
}
////////////////////////////////////////////////////////////////////////////////