Examples with DOTGenerator org.antlr.v4.tool.DOTGenerator used on opensource projects

Example 11 with DOTGenerator

use of org.antlr.v4.tool.DOTGenerator in project antlr4 by antlr.

the class BaseNodeTest 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 12 with DOTGenerator

use of org.antlr.v4.tool.DOTGenerator in project antlr4 by antlr.

the class Tool method generateATNs.

public void generateATNs(Grammar g) {
    DOTGenerator dotGenerator = new DOTGenerator(g);
    List<Grammar> grammars = new ArrayList<Grammar>();
    grammars.add(g);
    List<Grammar> imported = g.getAllImportedGrammars();
    if (imported != null)
        grammars.addAll(imported);
    for (Grammar ig : grammars) {
        for (Rule r : ig.rules.values()) {
            try {
                String dot = dotGenerator.getDOT(g.atn.ruleToStartState[r.index], g.isLexer());
                if (dot != null) {
                    writeDOTFile(g, r, dot);
                }
            } catch (IOException ioe) {
                errMgr.toolError(ErrorType.CANNOT_WRITE_FILE, ioe);
            }
        }
    }
}