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

Example 1 with Rule

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

the class BaseJavaTest method checkRuleDFA.

List<ANTLRMessage> checkRuleDFA(String gtext, String ruleName, String expecting) throws Exception {
    ErrorQueue equeue = new ErrorQueue();
    Grammar g = new Grammar(gtext, equeue);
    ATN atn = createATN(g, false);
    ATNState s = atn.ruleToStartState[g.getRule(ruleName).index];
    if (s == null) {
        System.err.println("no such rule: " + ruleName);
        return null;
    }
    ATNState t = s.transition(0).target;
    if (!(t instanceof DecisionState)) {
        System.out.println(ruleName + " has no decision");
        return null;
    }
    DecisionState blk = (DecisionState) t;
    checkRuleDFA(g, blk, expecting);
    return equeue.all;
}

Example 2 with Rule

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

the class BaseCppTest method checkRuleDFA.

List<ANTLRMessage> checkRuleDFA(String gtext, String ruleName, String expecting) throws Exception {
    ErrorQueue equeue = new ErrorQueue();
    Grammar g = new Grammar(gtext, equeue);
    ATN atn = createATN(g, false);
    ATNState s = atn.ruleToStartState[g.getRule(ruleName).index];
    if (s == null) {
        System.err.println("no such rule: " + ruleName);
        return null;
    }
    ATNState t = s.transition(0).target;
    if (!(t instanceof DecisionState)) {
        System.out.println(ruleName + " has no decision");
        return null;
    }
    DecisionState blk = (DecisionState) t;
    checkRuleDFA(g, blk, expecting);
    return equeue.all;
}

Example 3 with Rule

use of org.antlr.v4.tool.Rule 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 4 with Rule

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

the class BasePythonTest method checkRuleDFA.

List<ANTLRMessage> checkRuleDFA(String gtext, String ruleName, String expecting) throws Exception {
    ErrorQueue equeue = new ErrorQueue();
    Grammar g = new Grammar(gtext, equeue);
    ATN atn = createATN(g, false);
    ATNState s = atn.ruleToStartState[g.getRule(ruleName).index];
    if (s == null) {
        System.err.println("no such rule: " + ruleName);
        return null;
    }
    ATNState t = s.transition(0).target;
    if (!(t instanceof DecisionState)) {
        System.out.println(ruleName + " has no decision");
        return null;
    }
    DecisionState blk = (DecisionState) t;
    checkRuleDFA(g, blk, expecting);
    return equeue.all;
}

Example 5 with Rule

use of org.antlr.v4.tool.Rule in project SSM by Intel-bigdata.

the class TestSmartRuleParser method parseAndExecuteRule.

private void parseAndExecuteRule(String rule) throws Exception {
    System.out.println("--> " + rule);
    InputStream input = new ByteArrayInputStream(rule.getBytes());
    ANTLRInputStream antlrInput = new ANTLRInputStream(input);
    SmartRuleLexer lexer = new SmartRuleLexer(antlrInput);
    CommonTokenStream tokens = new CommonTokenStream(lexer);
    SmartRuleParser parser = new SmartRuleParser(tokens);
    parser.removeErrorListeners();
    parser.addErrorListener(new SSMRuleErrorListener());
    ParseTree tree = parser.ssmrule();
    System.out.println("Parser tree: " + tree.toStringTree(parser));
    System.out.println("Total number of errors: " + parseErrors.size());
    SmartRuleVisitTranslator visitor = new SmartRuleVisitTranslator();
    visitor.visit(tree);
    System.out.println("\nQuery:");
    TranslateResult result = visitor.generateSql();
    int index = 1;
    for (String sql : result.getSqlStatements()) {
        System.out.println("" + index + ". " + sql);
        index++;
    }
    if (parseErrors.size() > 0) {
        throw new IOException("Error while parse rule");
    }
    ExecutionContext ctx = new ExecutionContext();
    ctx.setProperty(ExecutionContext.RULE_ID, 2016);
    DBAdapter dbAdapter = new DBAdapter(TestDBUtil.getTestDBInstance());
    RuleQueryExecutor qe = new RuleQueryExecutor(null, ctx, result, dbAdapter);
    List<String> paths = qe.executeFileRuleQuery();
    index = 1;
    System.out.println("\nFiles:");
    for (String path : paths) {
        System.out.println("" + index + ". " + path);
        index++;
    }
}