Convert diff to markdown with strikeout?

Question

I\'d like to convert the output of diff (on a Markdown file) to Markdown with and tags, so that I can see what h

Answer 1

Use wdiff. It already does the word-by-word comparison you're looking for; converting its output to markdown should take just a few simple regular expressions.

For example:

$ cat foo
Why do we study programming languages?  Not in order to
$ cat bar
We study programming languages not in order to
$ wdiff foo bar
[-Why do we-]{+We+} study programming [-languages?  Not-] {+languages not+} in order to
$ wdiff foo bar | sed 's|\[-||g;s|-]||g;s|{+||g;s|+}||g'
Why do weWe study programming languages?  Not languages not in order to

Edit: Actually, wdiff has some options that make it even easier:

$ wdiff -w '' -x '' -y '' -z '' foo bar
Why do weWe study programming languages?  Not languages not in order to