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,v 1.15 2001/11/19 13:02:33 geirm Exp $

Author:

Jason van Zyl, Geir Magnusson Jr.

Constructor Summary

NodeUtils()

Method Summary

static java.lang.String	interpolate(java.lang.String argStr, Context vars) Utility method to interpolate context variables into string literals.
static java.lang.String	specialText(Token t) Collect all the s that are carried along with a token.
static java.lang.String	tokenLiteral(Token t) complete node literal

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeUtils

public NodeUtils()

Method Detail

specialText

public static java.lang.String specialText(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.

tokenLiteral

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

complete node literal

interpolate

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

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.