mirror of
https://github.com/marcin-szczepanski/jFuzzyLogic.git
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182 lines
6.6 KiB
Java
182 lines
6.6 KiB
Java
/*
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[The "BSD licence"]
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Copyright (c) 2005-2006 Terence Parr
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. The name of the author may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.antlr.test;
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import org.antlr.tool.Grammar;
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import org.antlr.tool.Interpreter;
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import org.antlr.runtime.*;
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import org.antlr.runtime.tree.ParseTree;
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public class TestInterpretedParsing extends BaseTest {
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/** Public default constructor used by TestRig */
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public TestInterpretedParsing() {
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}
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public void testSimpleParse() throws Exception {
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Grammar pg = new Grammar(
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"parser grammar p;\n"+
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"prog : WHILE ID LCURLY (assign)* RCURLY EOF;\n" +
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"assign : ID ASSIGN expr SEMI ;\n" +
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"expr : INT | FLOAT | ID ;\n");
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Grammar g = new Grammar();
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g.importTokenVocabulary(pg);
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g.setFileName(Grammar.IGNORE_STRING_IN_GRAMMAR_FILE_NAME +"string");
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g.setGrammarContent(
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"lexer grammar t;\n"+
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"WHILE : 'while';\n"+
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"LCURLY : '{';\n"+
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"RCURLY : '}';\n"+
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"ASSIGN : '=';\n"+
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"SEMI : ';';\n"+
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"ID : ('a'..'z')+ ;\n"+
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"INT : (DIGIT)+ ;\n"+
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"FLOAT : (DIGIT)+ '.' (DIGIT)* ;\n"+
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"fragment DIGIT : '0'..'9';\n" +
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"WS : (' ')+ ;\n");
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CharStream input = new ANTLRStringStream("while x { i=1; y=3.42; z=y; }");
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Interpreter lexEngine = new Interpreter(g, input);
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CommonTokenStream tokens = new CommonTokenStream(lexEngine);
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tokens.setTokenTypeChannel(g.getTokenType("WS"), 99);
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//System.out.println("tokens="+tokens.toString());
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Interpreter parseEngine = new Interpreter(pg, tokens);
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ParseTree t = parseEngine.parse("prog");
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String result = t.toStringTree();
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String expecting =
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"(<grammar p> (prog while x { (assign i = (expr 1) ;) (assign y = (expr 3.42) ;) (assign z = (expr y) ;) } <EOF>))";
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assertEquals(expecting, result);
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}
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public void testMismatchedTokenError() throws Exception {
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Grammar pg = new Grammar(
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"parser grammar p;\n"+
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"prog : WHILE ID LCURLY (assign)* RCURLY;\n" +
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"assign : ID ASSIGN expr SEMI ;\n" +
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"expr : INT | FLOAT | ID ;\n");
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Grammar g = new Grammar();
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g.setFileName(Grammar.IGNORE_STRING_IN_GRAMMAR_FILE_NAME +"string");
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g.importTokenVocabulary(pg);
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g.setGrammarContent(
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"lexer grammar t;\n"+
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"WHILE : 'while';\n"+
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"LCURLY : '{';\n"+
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"RCURLY : '}';\n"+
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"ASSIGN : '=';\n"+
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"SEMI : ';';\n"+
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"ID : ('a'..'z')+ ;\n"+
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"INT : (DIGIT)+ ;\n"+
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"FLOAT : (DIGIT)+ '.' (DIGIT)* ;\n"+
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"fragment DIGIT : '0'..'9';\n" +
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"WS : (' ')+ ;\n");
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CharStream input = new ANTLRStringStream("while x { i=1 y=3.42; z=y; }");
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Interpreter lexEngine = new Interpreter(g, input);
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CommonTokenStream tokens = new CommonTokenStream(lexEngine);
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tokens.setTokenTypeChannel(g.getTokenType("WS"), 99);
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//System.out.println("tokens="+tokens.toString());
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Interpreter parseEngine = new Interpreter(pg, tokens);
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ParseTree t = parseEngine.parse("prog");
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String result = t.toStringTree();
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String expecting =
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"(<grammar p> (prog while x { (assign i = (expr 1) MismatchedTokenException(5!=9))))";
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assertEquals(expecting, result);
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}
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public void testMismatchedSetError() throws Exception {
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Grammar pg = new Grammar(
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"parser grammar p;\n"+
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"prog : WHILE ID LCURLY (assign)* RCURLY;\n" +
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"assign : ID ASSIGN expr SEMI ;\n" +
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"expr : INT | FLOAT | ID ;\n");
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Grammar g = new Grammar();
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g.importTokenVocabulary(pg);
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g.setFileName("<string>");
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g.setGrammarContent(
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"lexer grammar t;\n"+
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"WHILE : 'while';\n"+
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"LCURLY : '{';\n"+
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"RCURLY : '}';\n"+
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"ASSIGN : '=';\n"+
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"SEMI : ';';\n"+
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"ID : ('a'..'z')+ ;\n"+
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"INT : (DIGIT)+ ;\n"+
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"FLOAT : (DIGIT)+ '.' (DIGIT)* ;\n"+
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"fragment DIGIT : '0'..'9';\n" +
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"WS : (' ')+ ;\n");
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CharStream input = new ANTLRStringStream("while x { i=; y=3.42; z=y; }");
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Interpreter lexEngine = new Interpreter(g, input);
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CommonTokenStream tokens = new CommonTokenStream(lexEngine);
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tokens.setTokenTypeChannel(g.getTokenType("WS"), 99);
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//System.out.println("tokens="+tokens.toString());
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Interpreter parseEngine = new Interpreter(pg, tokens);
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ParseTree t = parseEngine.parse("prog");
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String result = t.toStringTree();
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String expecting =
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"(<grammar p> (prog while x { (assign i = (expr MismatchedSetException(9!={5,10,11})))))";
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assertEquals(expecting, result);
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}
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public void testNoViableAltError() throws Exception {
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Grammar pg = new Grammar(
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"parser grammar p;\n"+
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"prog : WHILE ID LCURLY (assign)* RCURLY;\n" +
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"assign : ID ASSIGN expr SEMI ;\n" +
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"expr : {;}INT | FLOAT | ID ;\n");
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Grammar g = new Grammar();
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g.importTokenVocabulary(pg);
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g.setFileName("<string>");
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g.setGrammarContent(
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"lexer grammar t;\n"+
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"WHILE : 'while';\n"+
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"LCURLY : '{';\n"+
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"RCURLY : '}';\n"+
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"ASSIGN : '=';\n"+
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"SEMI : ';';\n"+
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"ID : ('a'..'z')+ ;\n"+
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"INT : (DIGIT)+ ;\n"+
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"FLOAT : (DIGIT)+ '.' (DIGIT)* ;\n"+
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"fragment DIGIT : '0'..'9';\n" +
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"WS : (' ')+ ;\n");
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CharStream input = new ANTLRStringStream("while x { i=; y=3.42; z=y; }");
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Interpreter lexEngine = new Interpreter(g, input);
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CommonTokenStream tokens = new CommonTokenStream(lexEngine);
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tokens.setTokenTypeChannel(g.getTokenType("WS"), 99);
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//System.out.println("tokens="+tokens.toString());
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Interpreter parseEngine = new Interpreter(pg, tokens);
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ParseTree t = parseEngine.parse("prog");
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String result = t.toStringTree();
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String expecting =
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"(<grammar p> (prog while x { (assign i = (expr NoViableAltException(9@[4:1: expr : ( INT | FLOAT | ID );])))))";
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assertEquals(expecting, result);
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}
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}
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