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bug#38575: 27.0.50; Document that `diff' arguments OLD and NEW can be bu
From: |
Phil Sainty |
Subject: |
bug#38575: 27.0.50; Document that `diff' arguments OLD and NEW can be buffers |
Date: |
Thu, 12 Dec 2019 20:44:15 +1300 |
User-agent: |
Orcon Webmail |
This feature dates to the following commit, which I believe was
first released in 24.1.
Because this seems such a useful feature, I'm inclined to add a
NEWS entry as well, with the note "This change was made in Emacs
24.1, but wasn't documented until now."
-Phil
commit b2e4481906ec08e2c6072b6fe14dd1efca4784b9
Author: Stefan Monnier <monnier@iro.umontreal.ca>
Date: Mon Nov 22 14:22:03 2010 -0500
Cleanup diff-buffer-with-file.
* lisp/vc/diff.el (diff-old-temp-file, diff-new-temp-file): Remove.
(diff-sentinel): Get them as arguments instead.
(diff-old-file, diff-new-file, diff-extra-args): Remove.
(diff-file-local-copy, diff-better-file-name): New funs.
(diff-no-select): Rename from diff-into-buffer.
Support buffers additionally to files. Move `buf' arg. Don't
display buf.
Prefer closures to buffer-local variables.
(diff): Adjust accordingly.
(diff-buffer-with-file): Move from files.el.
* lisp/files.el (diff-buffer-with-file): Move to vc/diff.el.
(diff-buffer-internal): Remove.
(diff-buffer-buffer): Remove.
(save-some-buffers-action-alist): Use diff-no-select so as not to
guess
the buffer name used, and so as not to mess up windows and frames.