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+/*
+ * [The "BSD license"]
+ * Copyright (c) 2010 Terence Parr
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package org.antlr.test;
+
+import org.junit.Test;
+
+/** Test the set stuff in lexer and parser */
+public class TestSets extends BaseTest {
+ protected boolean debug = false;
+
+ /** Public default constructor used by TestRig */
+ public TestSets() {
+ }
+
+ @Test public void testSeqDoesNotBecomeSet() throws Exception {
+ // this must return A not I to the parser; calling a nonfragment rule
+ // from a nonfragment rule does not set the overall token.
+ String grammar =
+ "grammar P;\n" +
+ "a : C {System.out.println(input);} ;\n" +
+ "fragment A : '1' | '2';\n" +
+ "fragment B : '3' '4';\n" +
+ "C : A | B;\n";
+ String found = execParser("P.g", grammar, "PParser", "PLexer",
+ "a", "34", debug);
+ assertEquals("34\n", found);
+ }
+
+ @Test public void testParserSet() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : t=('x'|'y') {System.out.println($t.text);} ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "x", debug);
+ assertEquals("x\n", found);
+ }
+
+ @Test public void testParserNotSet() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : t=~('x'|'y') 'z' {System.out.println($t.text);} ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "zz", debug);
+ assertEquals("z\n", found);
+ }
+
+ @Test public void testParserNotToken() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : ~'x' 'z' {System.out.println(input);} ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "zz", debug);
+ assertEquals("zz\n", found);
+ }
+
+ @Test public void testParserNotTokenWithLabel() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : t=~'x' 'z' {System.out.println($t.text);} ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "zz", debug);
+ assertEquals("z\n", found);
+ }
+
+ @Test public void testRuleAsSet() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a @after {System.out.println(input);} : 'a' | 'b' |'c' ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "b", debug);
+ assertEquals("b\n", found);
+ }
+
+ @Test public void testRuleAsSetAST() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "options {output=AST;}\n" +
+ "a : 'a' | 'b' |'c' ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "b", debug);
+ assertEquals("b\n", found);
+ }
+
+ @Test public void testNotChar() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : A {System.out.println($A.text);} ;\n" +
+ "A : ~'b' ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "x", debug);
+ assertEquals("x\n", found);
+ }
+
+ @Test public void testOptionalSingleElement() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : A? 'c' {System.out.println(input);} ;\n" +
+ "A : 'b' ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "bc", debug);
+ assertEquals("bc\n", found);
+ }
+
+ @Test public void testOptionalLexerSingleElement() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : A {System.out.println(input);} ;\n" +
+ "A : 'b'? 'c' ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "bc", debug);
+ assertEquals("bc\n", found);
+ }
+
+ @Test public void testStarLexerSingleElement() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : A {System.out.println(input);} ;\n" +
+ "A : 'b'* 'c' ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "bbbbc", debug);
+ assertEquals("bbbbc\n", found);
+ found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "c", debug);
+ assertEquals("c\n", found);
+ }
+
+ @Test public void testPlusLexerSingleElement() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : A {System.out.println(input);} ;\n" +
+ "A : 'b'+ 'c' ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "bbbbc", debug);
+ assertEquals("bbbbc\n", found);
+ }
+
+ @Test public void testOptionalSet() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : ('a'|'b')? 'c' {System.out.println(input);} ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "ac", debug);
+ assertEquals("ac\n", found);
+ }
+
+ @Test public void testStarSet() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : ('a'|'b')* 'c' {System.out.println(input);} ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "abaac", debug);
+ assertEquals("abaac\n", found);
+ }
+
+ @Test public void testPlusSet() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : ('a'|'b')+ 'c' {System.out.println(input);} ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "abaac", debug);
+ assertEquals("abaac\n", found);
+ }
+
+ @Test public void testLexerOptionalSet() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : A {System.out.println(input);} ;\n" +
+ "A : ('a'|'b')? 'c' ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "ac", debug);
+ assertEquals("ac\n", found);
+ }
+
+ @Test public void testLexerStarSet() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : A {System.out.println(input);} ;\n" +
+ "A : ('a'|'b')* 'c' ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "abaac", debug);
+ assertEquals("abaac\n", found);
+ }
+
+ @Test public void testLexerPlusSet() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : A {System.out.println(input);} ;\n" +
+ "A : ('a'|'b')+ 'c' ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "abaac", debug);
+ assertEquals("abaac\n", found);
+ }
+
+ @Test public void testNotCharSet() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : A {System.out.println($A.text);} ;\n" +
+ "A : ~('b'|'c') ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "x", debug);
+ assertEquals("x\n", found);
+ }
+
+ @Test public void testNotCharSetWithLabel() throws Exception {
+ // This doesn't work in lexer yet.
+ // Generates: h=input.LA(1); but h is defined as a Token
+ String grammar =
+ "grammar T;\n" +
+ "a : A {System.out.println($A.text);} ;\n" +
+ "A : h=~('b'|'c') ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "x", debug);
+ assertEquals("x\n", found);
+ }
+
+ @Test public void testNotCharSetWithRuleRef() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : A {System.out.println($A.text);} ;\n" +
+ "A : ~('a'|B) ;\n" +
+ "B : 'b' ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "x", debug);
+ assertEquals("x\n", found);
+ }
+
+ @Test public void testNotCharSetWithRuleRef2() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : A {System.out.println($A.text);} ;\n" +
+ "A : ~('a'|B) ;\n" +
+ "B : 'b'|'c' ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "x", debug);
+ assertEquals("x\n", found);
+ }
+
+ @Test public void testNotCharSetWithRuleRef3() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : A {System.out.println($A.text);} ;\n" +
+ "A : ('a'|B) ;\n" +
+ "fragment\n" +
+ "B : ~('a'|'c') ;\n";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "x", debug);
+ assertEquals("x\n", found);
+ }
+
+ @Test public void testNotCharSetWithRuleRef4() throws Exception {
+ String grammar =
+ "grammar T;\n" +
+ "a : A {System.out.println($A.text);} ;\n" +
+ "A : ('a'|B) ;\n" +
+ "fragment\n" +
+ "B : ~('a'|C) ;\n" +
+ "fragment\n" +
+ "C : 'c'|'d' ;\n ";
+ String found = execParser("T.g", grammar, "TParser", "TLexer",
+ "a", "x", debug);
+ assertEquals("x\n", found);
+ }
+
+}
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