edu.northwestern.at.utils

Class PatternReplacer

java.lang.Object

edu.northwestern.at.utils.PatternReplacer

All Implemented Interfaces:

java.io.Serializable

public class PatternReplacer
extends java.lang.Object
implements java.io.Serializable

Defines a pattern replacer.

Defines a source pattern (regular expresssion) and its replacement string, along with a method for performing the replacement.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String	replacementPattern Replacement.
protected java.lang.String	sourcePattern Source pattern string.
protected java.util.regex.Matcher	sourcePatternMatcher Compiled source pattern matcher.

Constructor Summary

Constructors

Constructor and Description
PatternReplacer(java.lang.String sourcePattern, java.lang.String replacementPattern) Create a pattern replacer definition.

Method Summary

Methods

Modifier and Type	Method and Description
java.util.regex.Matcher	getMatcher() Get pattern matcher.
java.lang.String[]	matchGroups(java.lang.String s) Return matched groups.
java.lang.String	replace(java.lang.String s) Perform replacement.
java.lang.String	toString() Display pattern replacer as string.

Methods inherited from class java.lang.Object

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

Field Detail

sourcePattern

protected java.lang.String sourcePattern

Source pattern string.

sourcePatternMatcher

protected java.util.regex.Matcher sourcePatternMatcher

Compiled source pattern matcher.

replacementPattern

protected java.lang.String replacementPattern

Replacement.

Constructor Detail

PatternReplacer

public PatternReplacer(java.lang.String sourcePattern,
               java.lang.String replacementPattern)

Create a pattern replacer definition.

Parameters:

sourcePattern - Source pattern string as a regular expression.

replacementPattern - Replacement pattern string as a regular expression replacement expression.

Method Detail

matchGroups

public java.lang.String[] matchGroups(java.lang.String s)

Return matched groups.

Parameters:

s - String to match.

Returns:

String array of matched groups. Null if match fails.

replace

public java.lang.String replace(java.lang.String s)

Perform replacement.

Parameters:

s - String in which to perform replacement.

Returns:

String with source pattern replaced.

getMatcher

public java.util.regex.Matcher getMatcher()

Get pattern matcher.

Returns:

The pattern matcher.

toString

public java.lang.String toString()

Display pattern replacer as string.

Overrides:

toString in class java.lang.Object

Returns:

Pattern replacer as string.