Example usage for org.antlr.v4.runtime.tree RuleNode getText

Introduction

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

Prototype

String getText();

Source Link

Document

Return the combined text of all leaf nodes.

Usage

From source file:com.espertech.esper.epl.parse.ASTConstantHelper.java

License:Open Source License

private static Object parseNumber(RuleNode number, int factor) {
    int tokenType = getSingleChildTokenType(number);
    if (tokenType == EsperEPL2GrammarLexer.IntegerLiteral) {
        return parseIntLongByte(number.getText(), factor);
    }//  w w w .  j  av  a  2 s .  c o  m

    else if (tokenType == EsperEPL2GrammarLexer.FloatingPointLiteral) {
        String numberText = number.getText();
        if (numberText.endsWith("f") || numberText.endsWith("F")) {
            return FloatValue.parseString(number.getText()) * factor;
        } else {
            return DoubleValue.parseString(number.getText()) * factor;
        }
    }
    throw ASTWalkException.from("Encountered unrecognized constant", number.getText());
}

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From source file:nl.basjes.parse.useragent.utils.AntlrUtils.java

License:Apache License

public static String getSourceText(RuleNode ruleNode) {
    if (ruleNode instanceof ParserRuleContext) {
        return getSourceText((ParserRuleContext) ruleNode);
    }//from  w  w w. j  a va  2  s .c  o  m
    return ruleNode.getText();
}

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From source file:org.aksw.simba.cetus.parser.StringCreatingVisitor.java

License:Open Source License

public String visitChildren(RuleNode node) {
    int n = node.getChildCount();
    if (n > 1) {
        StringBuilder result = new StringBuilder();
        ParseTree child;//  w  w  w .  j  a v a2 s . co  m
        String childResult;
        for (int i = 0; i < n; i++) {
            child = node.getChild(i);
            childResult = child.accept(this);
            if (childResult != null) {
                if (i > 0) {
                    result.append(' ');
                }
                result.append(childResult);
            }
        }
        return result.toString();
    } else {
        if (n == 1) {
            return node.getChild(0).accept(this);
        } else {
            return node.getText();
        }
    }
}

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From source file:org.icesquirrel.interpreter.SquirrelInterpretedFunction.java

License:Open Source License

public SquirrelInterpretedFunction(StatContext functionBody, FuncargsContext functionSignature) {
    super();/*from ww w. ja v a 2 s .  co  m*/
    this.functionBody = Arrays.asList(functionBody);

    AbstractParseTreeVisitor<YieldContext> visitor = new AbstractParseTreeVisitor<YieldContext>() {

        @Override
        public YieldContext visitChildren(RuleNode node) {
            System.err.println("VISIT CHILDREN: " + node.getText());
            // TODO Auto-generated method stub
            return super.visitChildren(node);
        }

        @Override
        protected boolean shouldVisitNextChild(RuleNode node, YieldContext currentResult) {
            // TODO Auto-generated method stub
            boolean shouldVisitNextChild = super.shouldVisitNextChild(node, currentResult);
            System.err.println("VISIT SHOULD VISIT: " + node.getText() + " = " + shouldVisitNextChild
                    + " / YIELD : " + currentResult);
            return shouldVisitNextChild;
        }

        @Override
        public YieldContext visit(ParseTree tree) {
            System.err.println("VISIT: " + tree.getText());
            return super.visit(tree);
        }

    };
    YieldContext yield = visitor.visit(functionBody);
    // YieldContext yield = functionBody.accept(visitor);
    if (yield != null) {
        System.err.println("REMOVEME! GOT YIELD");
    }

    // setGenerator(functionBody.getText().contains("yi));
    // TODO
    // vararg support

    // TODO
    // friend variables

    // Arguments
    ArglistContext parlist = functionSignature.arglist();
    if (parlist != null) {
        varargs = parlist.VARARGS() != null;
        if (!varargs) {
            for (NameContext name : parlist.namelist().name()) {
                String nameText = name.NAME().getText();
                ExpContext exp = name.exp();
                Object value = null;
                if (exp != null) {
                    value = SquirrelExecutionContext.get().getProcessor().evaluate(exp);
                }
                arguments.insertLocal(nameText, value);
            }
        }
    }
}

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