Example usage for org.antlr.v4.runtime.tree Tree getPayload

Introduction

In this page you can find the example usage for org.antlr.v4.runtime.tree Tree getPayload.

Prototype

Object getPayload();

Source Link

Document

This method returns whatever object represents the data at this note.

Usage

From source file:org.apache.olingo.server.core.uri.testutil.ParseTreeToText.java

License:Apache License

private static String getNodeText(@NotNull final Tree t, @Nullable final List<String> ruleNames) {
    if (ruleNames != null) {
        if (t instanceof RuleNode) {
            int ruleIndex = ((RuleNode) t).getRuleContext().getRuleIndex();
            return ruleNames.get(ruleIndex);
        } else if (t instanceof ErrorNode) {
            return t.toString();
        } else if (t instanceof TerminalNode) {
            Token symbol = ((TerminalNode) t).getSymbol();
            if (symbol != null) {
                return symbol.getText();
            }/*ww w . ja v a 2s  .c o m*/
        }
    }
    // no recog for rule names
    Object payload = t.getPayload();
    if (payload instanceof Token) {
        return ((Token) payload).getText();
    }
    return t.getPayload().toString();
}

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From source file:org.semanticwb.rdf.sparql.SparqlMain.java

License:Apache License

public static void getTreeText(Tree t, String rnames[]) {
    System.out.println("payload:" + t.getPayload().toString());
    System.out.println(getNodeText(t, rnames));

    for (int i = 0; i < t.getChildCount(); i++) {
        Tree tree = (Tree) t.getChild(i);
        getTreeText(tree, rnames);//  www .ja  v a 2  s .c om
    }
}

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