/*-------------------------------------------------------------------------
Compiler Generator Coco/R,
Copyright (c) 1990, 2004 Hanspeter Moessenboeck, University of Linz
extended by M. Loeberbauer & A. Woess, Univ. of Linz
ported from C# to Java by Wolfgang Ahorner
with improvements by Pat Terry, Rhodes University

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, 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.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

As an exception, it is allowed to write an extension of Coco/R that is
used as a plugin in non-free software.

If not otherwise stated, any source code generated by Coco/R (other than
Coco/R itself) does not fall under the GNU General Public License.
-------------------------------------------------------------------------*/
/*-------------------------------------------------------------------------
  Trace output options
  0 | A: prints the states of the scanner automaton
  1 | F: prints the First and Follow sets of all nonterminals
  2 | G: prints the syntax graph of the productions
  3 | I: traces the computation of the First sets
  4 | J: prints the sets associated with ANYs and synchronisation sets
  6 | S: prints the symbol table (terminals, nonterminals, pragmas)
  7 | X: prints a cross reference list of all syntax symbols
  8 | P: prints statistics about the Coco run

  Trace output can be switched on by the pragma
    $ { digit | letter }
  in the attributed grammar or as a command-line option
  -------------------------------------------------------------------------*/

package Coco;

import java.io.File;

public class Coco {

  public static void main (String[] arg) {
    System.out.println("Coco/R (Apr 19, 2011)");
    String srcName = null, nsName = null, frameDir = null, ddtString = null, outDir = null;
    int retVal = 1;
    for (int i = 0; i < arg.length; i++) {
      if (arg[i].compareTo("-package") == 0 && i < arg.length - 1) nsName = arg[++i].trim();
      else if (arg[i].compareTo("-frames") == 0 && i < arg.length - 1) frameDir = arg[++i].trim();
      else if (arg[i].compareTo("-trace") == 0 && i < arg.length - 1) ddtString = arg[++i].trim();
      else if (arg[i].compareTo("-o") == 0 && i < arg.length - 1) outDir = arg[++i].trim();
      else srcName = arg[i];
    }
    if (arg.length > 0 && srcName != null) {
      try {
        String srcDir = new File(srcName).getParent();

        Scanner scanner = new Scanner(srcName);
        Parser parser = new Parser(scanner);

        parser.trace = new Trace(srcDir);
        parser.tab = new Tab(parser);
        parser.dfa = new DFA(parser);
        parser.pgen = new ParserGen(parser);

        parser.tab.srcName = srcName;
        parser.tab.srcDir = srcDir;
        parser.tab.nsName = nsName;
        parser.tab.frameDir = frameDir;
        parser.tab.outDir = (outDir != null) ? outDir : srcDir;
        if (ddtString != null) parser.tab.SetDDT(ddtString);

        parser.Parse();

        parser.trace.Close();
        System.out.println(parser.errors.count + " errors detected");
        if (parser.errors.count == 0) { retVal = 0; }
      } catch (FatalError e) {
        System.out.println(e.getMessage());
      }
    } else {
      System.out.println(
        "Usage: Coco Grammar.ATG {Option}\n" +
        "Options:\n" +
        "  -package <packageName>\n" +
        "  -frames  <frameFilesDirectory>\n" +
        "  -trace   <traceString>\n" +
        "  -o       <outputDirectory>\n" +
        "Valid characters in the trace string:\n" +
        "  A  trace automaton\n" +
        "  F  list first/follow sets\n" +
        "  G  print syntax graph\n" +
        "  I  trace computation of first sets\n" +
        "  J  list ANY and SYNC sets\n" +
        "  P  print statistics\n" +
        "  S  list symbol table\n" +
        "  X  list cross reference table\n" +
        "Scanner.frame and Parser.frame files needed in ATG directory\n" +
        "or in a directory specified in the -frames option.\n"
      );
    }
    System.exit(retVal);
  }

} // end Coco