Add Jltl2baCmdLine command-line interface for LTL -> NBA functionality (for testing)

git-svn-id: https://www.prismmodelchecker.org/svn/prism/prism/trunk@10534 bbc10eb1-c90d-0410-af57-cb519fbb1720

prism/src/jltl2ba/Jltl2baCmdLine.java

@@ -0,0 +1,114 @@
+//==============================================================================
+//	
+//	Copyright (c) 2015-
+//	Authors:
+//	* Joachim Klein <klein@tcs.inf.tu-dresden.de> (TU Dresden)
+//	
+//------------------------------------------------------------------------------
+//	
+//	This file is part of PRISM.
+//	
+//	PRISM 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 of the License, or
+//	(at your option) any later version.
+//	
+//	PRISM 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 PRISM; if not, write to the Free Software Foundation,
+//	Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//	
+//==============================================================================
+
+package jltl2ba;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.InputStreamReader;
+import java.io.PrintStream;
+
+import jltl2dstar.NBA;
+
+/**
+ * Command-line interface to the jltl2ba LTL->NBA translator.
+ */
+public class Jltl2baCmdLine {
+
+	public int run(String formula, PrintStream output) throws Exception {
+		formula = formula.trim();
+		SimpleLTL ltl = SimpleLTL.parseFormulaLBT(formula);
+		ltl = ltl.simplify();
+		
+		NBA nba = ltl.toNBA();
+		// nba.print_lbtt(output);
+		nba.print_hoa(output);
+		return 0;
+	}
+
+	public static void main(String[] args) {
+		int rv = 0;
+		int outfile_pos = 1;
+		BufferedReader r = null;
+		try {
+			String formula;
+			if (args.length == 0) {
+				usage("");
+			}
+			if (args[0].equals("--ltl")) {
+				if (args.length <= 1)
+					usage("Missing formula");
+				formula = args[1];
+				outfile_pos++;
+			} else {
+				if (args[0].equals("-")) {
+					r = new BufferedReader(new InputStreamReader(System.in));
+				} else {
+					r = new BufferedReader(new FileReader(args[0]));
+				}
+			}
+
+			if (outfile_pos >= args.length) {
+				usage("Missing output file");
+			}
+			PrintStream output;
+			String outfile = args[outfile_pos];
+			if (outfile.equals("-")) {
+				output = System.out;
+			} else {
+				output = new PrintStream(outfile);
+			}
+
+			formula = r.readLine();
+			r.close();
+
+			Jltl2baCmdLine jltl2ba = new Jltl2baCmdLine();
+			rv = jltl2ba.run(formula, output);
+			output.close();
+		} catch (Exception e) {
+			System.err.println(e.toString());
+			rv = 1;
+		}
+		
+		if (rv != 0) {
+			System.exit(rv);
+		}
+	}
+
+	private static void usage(String error)
+	{
+		if (!error.isEmpty()) {
+			System.err.println("Error: " + error);
+			System.err.println();
+		}
+		System.err.println("Usage:");
+		System.err.println("  --ltl formula out-file");
+		System.err.println(" or");
+		System.err.println("  in-file out-file");
+		System.err.println("\n  Filename of '-' stands for standard input/output");
+		System.exit(1);
+	}
+}