/*  SCCS - @(#)NPP.java	1.3 - 09/09/99 - 18:54:42 */

/*
 * Copyright (c) 1997 USC Brain Project. email nsl@java.usc.edu.
*/
/* NSLJ Pre-Processor
 * based on Guava
 * it uses Java to Bison F (JBF).
 * This inputs to this file get made by JB.
 * The inputs are: jbf/YYtokentypes.java, YYparse.java, YYlex.java
 *
 * $Log: NPP.java,v $
 * Revision 1.4  1997/11/06 03:21:46  erhan
 * NSL3.0.b
 *
 * Revision 1.3  1997/07/30 21:10:30  erhan
 * nsl3.0
 *
 * Revision 1.2  1997/03/28 02:04:30  aalx
 * modified to include copyright notices to us or the appropriate author.
 *
 * Revision 1.1.1.1  1997/03/12 23:09:23  nsl
 * changed dir struct
 *
 * Revision 1.3  1997/02/27 07:07:34  erhan
 * 1
 *
 * Revision 1.2  1997/02/25 23:37:35  erhan
 * ok?
 *
 * Revision 1.1.1.1  1997/02/20 08:04:35  nsl
 *  Importing npp
 *
 */
package npp.src;

import java.io.*;
import npp.src.util.*;
import npp.src.YYlex;
import pp.src.jbf.*;


/** NSLJ Pre-Processor
 * based on JBF.
 */
public class NPP {

public static YYlex yyl = new YYlex(System.in,System.out);
public static YYparse yyp = new YYparse(yyl,System.err);
public static NslPreProcessor npp = new NslPreProcessor();

    protected static boolean debuglex;
    protected static boolean debugparse;
    protected static boolean verbose;
    protected static boolean lexonly;
    protected static boolean nocomments;
    // protected static YYtoken yylval;
    protected static int llevel;
    protected static int plevel;

  /** Main runtime routine - call <tt>java NPP</tt> to run. 
   */
public static void main(String argv[])
{
    debuglex = false;
    debugparse = false;
    verbose = false;
    lexonly = false;
    //nocomments = false; taking this out as a default
    nocomments = true;
    llevel = 0;
    plevel = 0;

    // System.err.println("NSL pre-processor PHASE 2....");
    if (argv.length == 1 && 
	(argv[0].compareTo("-0")==0 || argv[0].compareTo("-h")==0)) {
	// change to comments instead of nocomments
	System.out.println("Usage: java NPP [-comments] [-verbose] [-debug][-debuglex][-debugparse][-lex][-l Lexlevel][-p ParseLevel] <filename>.java");
    }

    for(int i=0;i<argv.length;i++) {
	if(argv[i].compareTo("-debug")==0) {debuglex = debugparse = true;}
	else if(argv[i].compareTo("-debuglex")==0) {debuglex = true;}
	else if(argv[i].compareTo("-comments")==0) {nocomments = false;}
	else if(argv[i].compareTo("-debugparse")==0) {debugparse = true;}
	else if(argv[i].compareTo("-verbose")==0) {verbose = true;}
	else if(argv[i].compareTo("-lex")==0) {lexonly = true;}
	else if(argv[i].compareTo("-l")==0) {
	    if(i == argv.length) {
		System.err.println("-l requires an argument");
	 	return;
	    }
	    i++;
	    try {
		llevel = (Integer.valueOf(argv[i])).intValue();
	    } catch (Exception e) {
		System.err.println("-l requires an integer argument");
	 	return;
	    }
	} else if(argv[i].compareTo("-p")==0) {
	    if(i == argv.length) {
		System.err.println("-p requires an argument");
	 	return;
	    }
	    i++;
	    try {
		plevel = (Integer.valueOf(argv[i])).intValue();
	    } catch (Exception e) {
		System.err.println("-p requires an integer argument");
	 	return;
	    }
	}
    }
    String cName = argv[argv.length-1];
    npp.setModName(cName);
    boolean addVar = true; // Add public variables of base class to its scope
    npp.parseClass(cName, addVar);
}

}; /*class NPP*/