Turns out there's a ton of different text properties that Emacs understands: https://www.gnu.org/software/emacs/manual/html_node/elisp/Special-Properties.html (e.g. you can change the cursor!)
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I've released difftastic 0.50!
In this release:
* Merge conflicts! Difftastic now understands <<<<<<< syntax and shows a syntactic diff of the underlying files.
* Updated parsers for Elixir, Erlang, Go, Kotlin and Racket
* Various styling quality-of-life improvements
I've been thinking about making difftastic smarter about context. In principle it understands structure, so I could limit context to the enclosing definition.
However, sometimes it's nice to see surrounding code. Line 644 isn't useful, but maybe 655 is. Opinions?
I've changed the difftastic slogan to " a structural diff that understands syntax".
Previously I just said "a diff that understands syntax", but users sometimes assumed it was just a diff with syntax highlighting. Hopefully this communicates the purpose better.