New Pugin: Diff unsaved document with file

[GoogleCodeExporter]

What Plugin does this relate to? What version of the Plugin?
request for a new plugin

What steps will reproduce the problem?
1. open an existing file
2. make changes in edit buffer
3. File->Diff

What is the expected output? What do you see instead?
Display difference between file and unsaved buffer

What version of Editra are you using? On what operating system?
any, any

Please provide any additional information below.

Original issue reported on code.google.com by ronw.m...@gmail.com on 10 Apr 2011 at 6:25

[GoogleCodeExporter]

This would also be useful for comparing two saved files, perhaps allowing you 
to compare two open document tabs or similar?  As I use my default text editor 
for most of my coding across multiple platforms it is handy to have a text 
editor (like editra) that is cross platform and supports this feature (it is 
the only thing preventing me from using Editra for all my coding needs).

Original comment by compupar...@gmail.com on 21 Aug 2012 at 7:27

[GoogleCodeExporter]

I agree. Other than [S]ftp, this is the only must have feature I haven't seen, 
at least for me.

Original comment by furashg...@gmail.com on 21 Jan 2013 at 3:50