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+/********************* */
+/*! \file PipedInput.java
+ ** \verbatim
+ ** Original author: mdeters
+ ** Major contributors: none
+ ** Minor contributors (to current version): none
+ ** This file is part of the CVC4 prototype.
+ ** Copyright (c) 2009-2013 New York University and The University of Iowa
+ ** See the file COPYING in the top-level source directory for licensing
+ ** information.\endverbatim
+ **
+ ** \brief A simple demonstration of the input parsing capabilities of CVC4
+ ** when used from Java
+ **
+ ** A simple demonstration of the input parsing capabilities of CVC4 when
+ ** used from Java.
+ **/
+
+import edu.nyu.acsys.CVC4.*;
+import java.io.*;
+
+public class PipedInput {
+ public static void main(String[] args) throws IOException {
+ System.loadLibrary("cvc4jni");
+
+ // Boilerplate setup for CVC4
+ ExprManager exprMgr = new ExprManager();
+ SmtEngine smt = new SmtEngine(exprMgr);
+ smt.setOption("incremental", new SExpr(true));
+ smt.setOption("output-language", new SExpr("smt2"));
+
+ // Set up a pair of connected Java streams
+ PipedOutputStream solverPipe = new PipedOutputStream();
+ PrintWriter toSolver = new PrintWriter(solverPipe);
+ PipedInputStream stream = new PipedInputStream(solverPipe);
+
+ // Write some things to CVC4's input stream, making sure to flush()
+ toSolver.println("(set-logic QF_LIA)");
+ toSolver.println("(declare-fun x () Int)");
+ toSolver.println("(assert (= x 5))");
+ toSolver.println("(check-sat)");
+ toSolver.flush();
+
+ // Set up the CVC4 parser
+ ParserBuilder pbuilder =
+ new ParserBuilder(exprMgr, "<string 1>")
+ .withInputLanguage(InputLanguage.INPUT_LANG_SMTLIB_V2)
+ .withLineBufferedStreamInput((java.io.InputStream)stream);
+ Parser parser = pbuilder.build();
+
+ // Read all the commands thus far
+ Command cmd;
+ while((cmd = parser.nextCommand()) != null) {
+ System.out.println(cmd);
+ cmd.invoke(smt, System.out);
+ }
+
+ // Write some more things to CVC4's input stream, making sure to flush()
+ toSolver.println("(assert (= x 10))");
+ toSolver.println("(check-sat)");
+ toSolver.flush();
+
+ // Read all the commands thus far
+ while((cmd = parser.nextCommand()) != null) {
+ System.out.println(cmd);
+ cmd.invoke(smt, System.out);
+ }
+ }
+}
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