edu.umass.cs.mallet.base.pipe
Class CharSubsequence

java.lang.Object
  extended byedu.umass.cs.mallet.base.pipe.Pipe
      extended byedu.umass.cs.mallet.base.pipe.CharSubsequence
All Implemented Interfaces:
java.io.Serializable

public class CharSubsequence
extends Pipe
implements java.io.Serializable

Given a string, return only the portion of the string inside a regex parenthesized group.

See Also:
Serialized Form

Field Summary
static java.util.regex.Pattern SKIP_HEADER
           
 
Constructor Summary
CharSubsequence(java.util.regex.Pattern regex)
           
CharSubsequence(java.util.regex.Pattern regex, int groupIndex)
           
 
Method Summary
 Instance pipe(Instance carrier)
          Process an Instance.
 
Methods inherited from class edu.umass.cs.mallet.base.pipe.Pipe
getDataAlphabet, getInstanceId, getParent, getParentRoot, getTargetAlphabet, isDataAlphabetSet, isTargetProcessing, pipe, readResolve, resolveDataAlphabet, resolveTargetAlphabet, setDataAlphabet, setParent, setTargetAlphabet, setTargetProcessing
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

SKIP_HEADER

public static final java.util.regex.Pattern SKIP_HEADER
Constructor Detail

CharSubsequence

public CharSubsequence(java.util.regex.Pattern regex,
                       int groupIndex)

CharSubsequence

public CharSubsequence(java.util.regex.Pattern regex)
Method Detail

pipe

public Instance pipe(Instance carrier)
Description copied from class: Pipe
Process an Instance. This method takes an input Instance, destructively modifies it in some way, and returns it. This is the method by which all pipes are eventually run.

One can create a new concrete subclass of Pipe simply by implementing this method.

Specified by:
pipe in class Pipe
Parameters:
carrier - Instance to be processed.