org.apache.velocity.runtime.parser.node
Class NodeUtils

java.lang.Object
  org.apache.velocity.runtime.parser.node.NodeUtils

public class NodeUtils
extends java.lang.Object

Utilities for dealing with the AST node structure.

Version:

$Id: NodeUtils.java 687386 2008-08-20 16:57:07Z nbubna $

Author:

Jason van Zyl, Geir Magnusson Jr.

Constructor Summary

NodeUtils()

Method Summary

static org.apache.commons.lang.text.StrBuilder	getSpecialText(Token t) Collect all the s that are carried along with a token.
static java.lang.String	interpolate(java.lang.String argStr, Context vars) Deprecated. this method isn't called by any class
static java.lang.String	specialText(Token t) Deprecated. use getSpecialText(Token t)
static java.lang.String	tokenLiteral(Token t) complete node literal

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NodeUtils

public NodeUtils()

Method Detail

specialText

public static java.lang.String specialText(Token t)

Deprecated. use getSpecialText(Token t)

getSpecialText

public static org.apache.commons.lang.text.StrBuilder getSpecialText(Token t)

Collect all the s that are carried along with a token. Special tokens do not participate in parsing but can still trigger certain lexical actions. In some cases you may want to retrieve these special tokens, this is simply a way to extract them.

Parameters:

t - the Token

Returns:

StrBuilder with the special tokens.

tokenLiteral

public static java.lang.String tokenLiteral(Token t)

complete node literal

Parameters:

t -

Returns:

A node literal.

interpolate

public static java.lang.String interpolate(java.lang.String argStr,
                                           Context vars)
                                    throws MethodInvocationException

Deprecated. this method isn't called by any class

Utility method to interpolate context variables into string literals. So that the following will work: #set $name = "candy" $image.getURI("${name}.jpg") And the string literal argument will be transformed into "candy.jpg" before the method is executed.

Parameters:

argStr -

vars -

Returns:

Interpoliation result.

Throws:

MethodInvocationException