ptolemy.util

Class Diff

java.lang.Object

ptolemy.util.Diff

public class Diff
extends java.lang.Object

Read two files and compute the diff.

This file is based on http://introcs.cs.princeton.edu/96optimization/Diff.java, from 2011, see http://introcs.cs.princeton.edu/96optimization. A current copy may be found at http://introcs.cs.princeton.edu/java/23recursion/Diff.java.html

Since:

Ptolemy II 11.0

Version:

$Id$

Author:

Christopher Brooks

Pt.AcceptedRating:

Red (cxh)

Pt.ProposedRating:

Red (cxh)

Constructor Summary

Constructors

Constructor and Description
Diff()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	diff(java.lang.String aString, java.lang.String bString) Return the difference between two strings.
static void	main(java.lang.String[] args) Print the difference between two files.

Methods inherited from class java.lang.Object

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

Constructor Detail

Diff

public Diff()

Method Detail

diff

public static java.lang.String diff(java.lang.String aString,
                                    java.lang.String bString)

Return the difference between two strings.

Parameters:

aString - The first string to be compared.

bString - The secondString to be compared

Returns:

A string describing the difference between the two strings in a format similar to the Unix diff command.

main

public static void main(java.lang.String[] args)
                 throws java.net.MalformedURLException,
                        java.io.IOException

Print the difference between two files.

Usage:

  java -classpath $PTII ptolemy.util.test.Diff File1.txt File2.txt
  

Parameters:

args - An array of two elements, where the first element is the filename of the first file and the second element is the filename of the second file.

Throws:

java.net.MalformedURLException - If a file name cannot be converted into a URL.

java.io.IOException - If a file cannot be read.