From bada4ecc1a09a3e4a98ae3449f6e6e7e6de19fef Mon Sep 17 00:00:00 2001
From: Tom Willemse
Date: Fri, 2 Jan 2015 03:40:45 +0100
Subject: Initial commit

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+;;;;;
+title: Some quick git diff tips
+tags: org-mode, lisp, config, git
+date: 2013-08-11 00:54
+format: md
+;;;;;
+
+A couple of quick tips. As you possibly know you can specify some
+options to be used for diffs (and other things) per file type. The one
+I'm interested in is the function name.
+
+## For org-mode
+
+The primary way of identifying which part of an org-mode document a
+change occurs in seems to me to be the heading. So, in your
+`$HOME/.gitconfig` put:
+
+    [diff "org"]
+          xfuncname = "^\\*+.*"
+
+Which should show any lines starting with one or more `*` characters.
+And then in `$XDG_CONFIG_HOME/git/attributes` or
+`$HOME/.config/git/attributes` put:
+
+    ,*.org   diff=org
+
+## For lisp and lisp-like langauges
+
+For anything that resembles lisp (so Common Lisp, Emacs Lisp, Hy,
+scheme, etc.) I would think that the easiest thing to do is just see
+the closes top-level form. So, in your `$HOME/.gitconfig` put:
+
+    [diff "lisp"]
+          xfuncname = "^\\([^ ]+ [^ ]+"
+
+Which should show the opening parenthesis and the first two words. For
+example:
+
+    (defun some-function-name
+    (defclass my-awesome-class
+    (define-route this-strange-route
+
+And then put in your `$XDG_CONFIG_HOME/git/attributes` or
+`$HOME/.config/git/attributes`:
+
+    ,*.lisp  diff=lisp
+    ,*.el    diff=lisp
+    ,*.hy    diff=lisp
+    ,*.scm   diff=lisp
+
+And possibly any other lisp-like language files you can think of.
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