diff module

This module provides a function to compute differences between two lists/arrays.

diff() compute the difference of the specified two sequences. The sequences can be either of the following types.

• java.util.Collection
• java.lang.Object[]
• java.lang.String
• java.io.File
• java.io.Reader
• java.io.InputStream

If String or File is specified as a parameter, the lines in the file are to be compared. If Reader or InputStram is specified, a collection of the lines is created first, then compared with the other parameter.

size() returns the number of chunks. 0 means no difference.

> r = diff([1,2,3], [1,3,4])

2d1
< 2
3a3
> 4

> r.size()
2

patch() applies the patch to original to get revised.

> patch(r, [1,2,3])
[1, 3, 4]

parseDiff() parses a diff-formatted text reading from input, and returns the same type of object that diff() returns.

parseDiff("diff.txt")