org.outerj.daisy.diff.tag

Class ArgumentComparator

java.lang.Object

org.outerj.daisy.diff.tag.ArgumentComparator

All Implemented Interfaces:

IRangeComparator, IAtomSplitter

public class ArgumentComparator
extends Object
implements IAtomSplitter

Takes a String and generates tokens/atoms that can be used by LCS. This comparator is used specifically for arguments inside HTML tags.

Constructor Summary

Constructors

Constructor and Description
ArgumentComparator(String s)

Method Summary

Modifier and Type	Method and Description
Atom	getAtom(int i)
int	getRangeCount() Returns the number of comparable entities.
boolean	rangesEqual(int thisIndex, IRangeComparator other, int otherIndex) Returns whether the comparable entity given by the first index matches an entity specified by the other IRangeComparator and index.
boolean	skipRangeComparison(int length, int maxLength, IRangeComparator other) Returns whether a comparison should be skipped because it would be too costly (or lengthy).
String	substring(int startAtom)
String	substring(int startAtom, int endAtom)

Methods inherited from class java.lang.Object

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

Constructor Detail

ArgumentComparator

public ArgumentComparator(String s)

Method Detail

getAtom

public Atom getAtom(int i)

Specified by:

getAtom in interface IAtomSplitter

getRangeCount

public int getRangeCount()

Description copied from interface: IRangeComparator

Returns the number of comparable entities.

Specified by:

getRangeCount in interface IRangeComparator

Returns:

the number of comparable entities

rangesEqual

public boolean rangesEqual(int thisIndex,
                           IRangeComparator other,
                           int otherIndex)

Description copied from interface: IRangeComparator

Returns whether the comparable entity given by the first index matches an entity specified by the other IRangeComparator and index.

Specified by:

rangesEqual in interface IRangeComparator

Parameters:

thisIndex - the index of the comparable entity within this IRangeComparator

other - the IRangeComparator to compare this with

otherIndex - the index of the comparable entity within the other IRangeComparator

Returns:

true if the comparable entities are equal

skipRangeComparison

public boolean skipRangeComparison(int length,
                                   int maxLength,
                                   IRangeComparator other)

Description copied from interface: IRangeComparator

Returns whether a comparison should be skipped because it would be too costly (or lengthy).

Specified by:

skipRangeComparison in interface IRangeComparator

Parameters:

length - a number on which to base the decision whether to return true or false

maxLength - another number on which to base the decision whether to return true or false

other - the other IRangeComparator to compare with

Returns:

true to avoid a too lengthy range comparison

substring

public String substring(int startAtom,
                        int endAtom)

Specified by:

substring in interface IAtomSplitter

substring

public String substring(int startAtom)

Specified by:

substring in interface IAtomSplitter