Examples with ATNPrinter org.antlr.v4.automata.ATNPrinter used on opensource projects

Example 1 with ATNPrinter

use of org.antlr.v4.automata.ATNPrinter in project antlr4 by antlr.

the class BaseBrowserTest method checkRuleATN.

void checkRuleATN(Grammar g, String ruleName, String expecting) {
    ParserATNFactory f = new ParserATNFactory(g);
    ATN atn = f.createATN();
    DOTGenerator dot = new DOTGenerator(g);
    System.out.println(dot.getDOT(atn.ruleToStartState[g.getRule(ruleName).index]));
    Rule r = g.getRule(ruleName);
    ATNState startState = atn.ruleToStartState[r.index];
    ATNPrinter serializer = new ATNPrinter(g, startState);
    String result = serializer.asString();
    //System.out.print(result);
    assertEquals(expecting, result);
}

Example 2 with ATNPrinter

use of org.antlr.v4.automata.ATNPrinter in project antlr4 by tunnelvisionlabs.

the class TestATNConstruction method checkTokensRule.

void checkTokensRule(LexerGrammar g, String modeName, String expecting) {
    // }
    if (modeName == null)
        modeName = "DEFAULT_MODE";
    if (g.modes.get(modeName) == null) {
        System.err.println("no such mode " + modeName);
        return;
    }
    ParserATNFactory f = new LexerATNFactory(g);
    ATN nfa = f.createATN();
    ATNState startState = nfa.modeNameToStartState.get(modeName);
    ATNPrinter serializer = new ATNPrinter(g, startState);
    String result = serializer.asString();
    // System.out.print(result);
    assertEquals(expecting, result);
}

Example 3 with ATNPrinter

use of org.antlr.v4.automata.ATNPrinter in project antlr4 by tunnelvisionlabs.

the class ParserATNFactory method rule.

/* start->ruleblock->end */
@NotNull
@Override
public Handle rule(@NotNull GrammarAST ruleAST, @NotNull String name, @NotNull Handle blk) {
    Rule r = g.getRule(name);
    RuleStartState start = atn.ruleToStartState[r.index];
    epsilon(start, blk.left);
    RuleStopState stop = atn.ruleToStopState[r.index];
    epsilon(blk.right, stop);
    Handle h = new Handle(start, stop);
    // ATNPrinter ser = new ATNPrinter(g, h.left);
    // System.out.println(ruleAST.toStringTree()+":\n"+ser.asString());
    ruleAST.atnState = start;
    return h;
}

Example 4 with ATNPrinter

use of org.antlr.v4.automata.ATNPrinter in project antlr4 by antlr.

the class ParserATNFactory method rule.

/* start->ruleblock->end */
@Override
public Handle rule(GrammarAST ruleAST, String name, Handle blk) {
    Rule r = g.getRule(name);
    RuleStartState start = atn.ruleToStartState[r.index];
    epsilon(start, blk.left);
    RuleStopState stop = atn.ruleToStopState[r.index];
    epsilon(blk.right, stop);
    Handle h = new Handle(start, stop);
    // ATNPrinter ser = new ATNPrinter(g, h.left);
    // System.out.println(ruleAST.toStringTree()+":\n"+ser.asString());
    ruleAST.atnState = start;
    return h;
}

Example 5 with ATNPrinter

use of org.antlr.v4.automata.ATNPrinter in project antlr4 by antlr.

the class BasePythonTest method checkRuleATN.

void checkRuleATN(Grammar g, String ruleName, String expecting) {
    ParserATNFactory f = new ParserATNFactory(g);
    ATN atn = f.createATN();
    DOTGenerator dot = new DOTGenerator(g);
    System.out.println(dot.getDOT(atn.ruleToStartState[g.getRule(ruleName).index]));
    Rule r = g.getRule(ruleName);
    ATNState startState = atn.ruleToStartState[r.index];
    ATNPrinter serializer = new ATNPrinter(g, startState);
    String result = serializer.asString();
    //System.out.print(result);
    assertEquals(expecting, result);
}