I'd like to compare two text files on a paper. Which app should I use to print a diff of two files?
I know several apps to show diff on a screen and usually use MacVim. However, MacVim seems not have a feature to print diff side by side.
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I thought perhaps BBEdit might have what you want. Under the Search menu, there is a Find Differences command, wherein the text files can be selected.
However, the result shows the file contents side-by-side, on screen. When printed, the output is merely a list of which lines did not match.
As a workaround, might I suggest the following:
It will be somewhat rough, but you'll (probably) have the printed sheets of line comparisons that you need.
There are sites that will do diff for you.
Do you use GitHub? I think their site's Diff displays are quite nice, and seem to print just as nicely.
Otherwise a google search turn up a few other sites that offer this service, here's one that seems to have decent print support:
Of course using this method you have to not be too worried about the confidentiality of your document, or have a great deal of trust in the service provider!