net.morimekta.diff

Class DiffBase

java.lang.Object

net.morimekta.diff.DiffBase

Direct Known Subclasses:

Bisect, Diff, DiffLines

public abstract class DiffBase
extends Object

DiffBase

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
abstract LinkedList<Change>	getChangeList() Get the finished changelist.
DiffOptions	getOptions() Get the diff options used when diffing.
int	hashCode()
int	levenshtein() Compute the Levenshtein distance; the number of inserted, deleted or substituted characters.
String	prettyHtml() Convert a DiffBase list into a pretty HTML report.
String	text1() Compute and return the source text (all equalities and deletions).
String	text2() Compute and return the destination text (all equalities and insertions).
String	toDelta() Crush the diff into an encoded string which describes the operations required to transform text1 into text2.
String	toString()
int	xIndex(int loc) loc is a location in text1, compute and return the equivalent location in text2.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

getOptions

public DiffOptions getOptions()

Get the diff options used when diffing.

Returns:

The diff options.

getChangeList

public abstract LinkedList<Change> getChangeList()

Get the finished changelist.

Returns:

List of changes.

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

prettyHtml

public String prettyHtml()

Convert a DiffBase list into a pretty HTML report.

Returns:

HTML representation.

text1

public String text1()

Compute and return the source text (all equalities and deletions).

Returns:

Source text.

text2

public String text2()

Compute and return the destination text (all equalities and insertions).

Returns:

Destination text.

levenshtein

public int levenshtein()

Compute the Levenshtein distance; the number of inserted, deleted or substituted characters.

Returns:

Number of changes.

toDelta

public String toDelta()

Crush the diff into an encoded string which describes the operations required to transform text1 into text2. E.g. "=3\t-2\t+ing" -> Keep 3 chars, delete 2 chars, insert 'ing'. Operations are tab-separated. Inserted text is escaped using %xx notation.

Returns:

Delta text.

xIndex

public int xIndex(int loc)

loc is a location in text1, compute and return the equivalent location in text2.

e.g. "The cat" vs "The big cat", 1->1, 5->8

Parameters:

loc - Location within text1.

Returns:

Location within text2.