@Test
public void testParser3() {
GrammarGraph graph = GrammarGraph.from(grammar, input3, Configuration.DEFAULT);
ParseResult result = Iguana.parse(input3, graph, startSymbol);
assertTrue(result.isParseSuccess());
assertEquals(getParseResult3(graph), result);
assertEquals(getTree3(), result.asParseSuccess().getTree());
}
@Test
public void testParser2() {
GrammarGraph graph = GrammarGraph.from(grammar, input2);
ParseResult result = Iguana.parse(input2, graph, startSymbol);
assertTrue(result.isParseSuccess());
assertEquals(getParseResult2(graph), result);
assertEquals(getTree2(), result.asParseSuccess().getTree());
}
@Test
public void test() {
System.out.println(grammar);
// Input input = Input.fromString("xawz");
Input input = Input.fromString("xyaw");
GrammarGraph graph = GrammarGraph.from(grammar, input, Configuration.DEFAULT);
ParseResult result = Iguana.parse(input, graph, Nonterminal.withName("S"));
}
@Test
public void test() {
System.out.println(grammar);
grammar = new EBNFToBNF().transform(grammar);
System.out.println(grammar);
Input input = Input.fromString("abcbcbc");
GrammarGraph graph = GrammarGraph.from(grammar, input, Configuration.DEFAULT);
ParseResult result = Iguana.parse(input, graph, Nonterminal.withName("X"));
Assert.assertTrue(result.isParseSuccess());
// Visualization.generateGrammarGraph("/Users/anastasiaizmaylova/git/diguana/test/org/jgll/parser/datadependent/", graph);
// Visualization.generateSPPFGraph("/Users/anastasiaizmaylova/git/diguana/test/org/jgll/parser/datadependent/",
// result.asParseSuccess().getSPPFNode(), input);
Assert.assertTrue(result.asParseSuccess().getStatistics().getCountAmbiguousNodes() == 0);
}
@Test
public void test() {
Grammar grammar =
Grammar.builder()
// $default$ ::= {UNDEFINED,-1,NON_REC} PREC(1,1)
.addRule(
Rule.withHead(Nonterminal.builder("$default$").build())
.setLayoutStrategy(NO_LAYOUT)
.setRecursion(Recursion.NON_REC)
.setAssociativity(Associativity.UNDEFINED)
.setPrecedence(-1)
.setPrecedenceLevel(PrecedenceLevel.from(1, 1, -1, false, false, false, false))
.build())
// E ::= ('-') E {UNDEFINED,1,RIGHT_REC} PREC(1,1)
.addRule(
Rule.withHead(Nonterminal.builder("E").build())
.addSymbol(
Terminal.builder(Sequence.builder(Character.builder(45).build()).build())
.build())
.addSymbol(Nonterminal.builder("E").build())
.setRecursion(Recursion.RIGHT_REC)
.setAssociativity(Associativity.UNDEFINED)
.setPrecedence(1)
.setPrecedenceLevel(PrecedenceLevel.from(1, 1, 1, true, false, false, false))
.build())
// E ::= ('a') {UNDEFINED,-1,NON_REC} PREC(1,1)
.addRule(
Rule.withHead(Nonterminal.builder("E").build())
.addSymbol(
Terminal.builder(Sequence.builder(Character.builder(97).build()).build())
.build())
.setRecursion(Recursion.NON_REC)
.setAssociativity(Associativity.UNDEFINED)
.setPrecedence(-1)
.setPrecedenceLevel(PrecedenceLevel.from(1, 1, 1, true, false, false, false))
.build())
// E ::= E ('^') E {LEFT,2,LEFT_RIGHT_REC} PREC(2,2)
.addRule(
Rule.withHead(Nonterminal.builder("E").build())
.addSymbol(Nonterminal.builder("E").build())
.addSymbol(
Terminal.builder(Sequence.builder(Character.builder(94).build()).build())
.build())
.addSymbol(Nonterminal.builder("E").build())
.setRecursion(Recursion.LEFT_RIGHT_REC)
.setAssociativity(Associativity.LEFT)
.setPrecedence(2)
.setPrecedenceLevel(PrecedenceLevel.from(2, 2, -1, false, false, true, false))
.build())
// E ::= E ('*') E {UNDEFINED,3,LEFT_RIGHT_REC} PREC(3,3)
.addRule(
Rule.withHead(Nonterminal.builder("E").build())
.addSymbol(Nonterminal.builder("E").build())
.addSymbol(
Terminal.builder(Sequence.builder(Character.builder(42).build()).build())
.build())
.addSymbol(Nonterminal.builder("E").build())
.setRecursion(Recursion.LEFT_RIGHT_REC)
.setAssociativity(Associativity.UNDEFINED)
.setPrecedence(3)
.setPrecedenceLevel(PrecedenceLevel.from(3, 3, 3, false, false, true, false))
.build())
// S ::= E {UNDEFINED,-1,NON_REC} PREC(1,1)
.addRule(
Rule.withHead(Nonterminal.builder("S").build())
.addSymbol(Nonterminal.builder("E").build())
.setRecursion(Recursion.NON_REC)
.setAssociativity(Associativity.UNDEFINED)
.setPrecedence(-1)
.setPrecedenceLevel(PrecedenceLevel.from(1, 1, -1, false, false, false, false))
.build())
.build();
// grammar = new EBNFToBNF().transform(grammar);
System.out.println(grammar);
grammar = new DesugarPrecedenceAndAssociativity().transform(grammar);
System.out.println(grammar.toStringWithOrderByPrecedence());
Input input = Input.fromString("a*-a^a");
GrammarGraph graph = GrammarGraph.from(grammar, input, Configuration.DEFAULT);
// Visualization.generateGrammarGraph("test/org/iguana/parser/datadependent/precedence/",
// graph);
ParseResult result = Iguana.parse(input, graph, Nonterminal.withName("S"));
Assert.assertTrue(result.isParseSuccess());
// Visualization.generateSPPFGraph("test/org/iguana/parser/datadependent/precedence/",
// result.asParseSuccess().getSPPFNode(), input);
Assert.assertEquals(0, result.asParseSuccess().getStatistics().getCountAmbiguousNodes());
}