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bug#22873: #22873 (multiple fake cursors); and, #17684 (crosshairs).
From: |
Keith David Bershatsky |
Subject: |
bug#22873: #22873 (multiple fake cursors); and, #17684 (crosshairs). |
Date: |
Tue, 28 Aug 2018 23:39:25 -0700 |
Proof concept patch version 014. Changes include, but are not limited to:
- Crosshairs now attempts to deal with variable pitch and nonstandard width
characters. This is accomplished by permitting the vertical ruler to intersect
a character anywhere along the X axis (vertically aligned with the left of
point). The horizontal ruler now also plays nicer with nonstandard width
characters.
- Debugging messages to stderr are turned on/off with: M-x mc-stderr.
- Bug fixes (elimination of an infinite loop; drawing multiple fake cursors
only if they are within the bounds of the visible window; miscellaneous
others...).
- Reduced footprint of revisions to core Emacs code, which is now possible by
using a few new window pointers: w->mc.[red, green, blue, fx, fy, h].
INSTALLATION:
1. Download a current version of Emacs master branch.
2. Reset the repository to 07/07/2018: git reset --hard
98463bed07ecc9057094928ffdc2321eaaf3ab52
3. Apply the attached patch from the root repository directory.
4. Build a GUI version of Emacs: X11, NS, or Windows.
5. To try out built-in fake cursors with Magnar Sveen's library
(multiple-cursors), install that package first.
(progn
(require 'package)
(add-to-list 'package-archives '("melpa" .
"http://melpa.milkbox.net/packages/") t)
(package-initialize)
(package-refresh-contents)
(package-install 'multiple-cursors))
6. Load or evaluate the contents of crosshairs.el (attached), which includes
code modifying a couple of functions used by Magnar Sveen's library.
7. To try out the crosshairs feature, open a simple buffer (nothing fancy,
just code or text) and type: M-x +-mode
8. To see an example of crosshairs playing nicely with tab stretches, open up
something like simple.el and type: M-x +-mode.
9. To see an example of a variety of built-in cursor styles and widths, type:
M-x mc-test
This is still a work in progress ...
crosshairs.el
Description: application/el
patch.diff
Description: application/diff
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Keith David Bershatsky <=