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https://github.com/DamienCassou/beginend

Emacs package to redefine M-< and M-> for some modes
https://github.com/DamienCassou/beginend

emacs emacs-dired mu4e notmuch

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Emacs package to redefine M-< and M-> for some modes

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README

        

* Beginend
#+BEGIN_HTML



MELPA Stable


MELPA


pipeline status


#+END_HTML

** Summary

You might want to read the [[https://emacs.cafe/emacs/package/2017/08/01/beginend.html][introductory blog post]].

Redefine ~M-<~ and ~M->~ (or any key bound to ~beginning-of-buffer~ or
~end-of-buffer~) for some modes so that point moves to meaningful
locations. The real beginning and end of buffers (i.e., ~point-min~
and ~point-max~) are still accessible by pressing the same key again.

In particular, these modes are supported:

| *Mode* | ~M-<~ | ~M->~ |
|-----------------------+-------------------------+----------------------------|
| *LaTeX-mode* | =\begin{document}= | =\end{document}= |
| *bs-mode* | first buffer | last buffer |
| *compilation-mode* | first compilation error | last compilation error |
| *deft-mode* | first match | last match |
| *dired-mode* | first file | last file |
| *elfeed-search-mode* | first feed | last feed |
| *elfeed-show-mode* | first body line | end of buffer |
| *epa-key-list-mode* | first key | last key |
| *ibuffer-mode* | first buffer | last buffer |
| *laTeX-mode* | =\begin{document}= | =\end{document}= |
| *magit-status-mode* | first section | last section |
| *magit-revision-mode* | first file | end of buffer |
| *message-mode* | first body line | last line before signature |
| *notmuch-search-mode* | first thread | last thread |
| *nroam-mode* | after the title | before backlinks |
| *occur-mode* | first match | last match |
| *org-agenda-mode* | first agenda item | last agenda item |
| *org-mode* | first heading | end of buffer |
| *outline-mode* | first heading | end of buffer |
| *prodigy-mode* | first service | last service |
| *prog-mode* | after initial comments | before final comments |
| *recentf-dialog-mode* | first most recent file | last most recent file |
| *rg-mode* | first match | last match |
| *vc-dir-mode* | first interesting file | last interesting file |

Finally, beginend does what you expect when your buffer is narrowed.

** Installing

Use [[http://melpa.org/][melpa]].

You can activate beginend for all modes it supports by customizing the
variable ~beginend-global-mode~ (~M-x customize-variable RET
beginend-global-mode RET~) or by adding this line to your
configuration file:

#+BEGIN_SRC emacs-lisp
(beginend-global-mode)
#+END_SRC

You can also decide to only activate beginend for some of its
supported major modes (e.g., through ~beginend-dired-mode~).

*** init.el example configuration

Vanilla Emacs ~init.el~:

#+BEGIN_SRC emacs-lisp
(require 'beginend)
(beginend-global-mode)
#+END_SRC

Configuration with the popular [[https://github.com/jwiegley/use-package][use-package]] macro:

#+BEGIN_SRC emacs-lisp
(use-package beginend
:ensure t
:demand t
:config
(beginend-global-mode))
#+END_SRC

** Cleaning up the modeline

By default, beginend adds the ~be~ lighter to the modeline.

You can use [[https://github.com/myrjola/diminish.el][diminish.el]] or [[https://savannah.nongnu.org/projects/delight][delight.el]] to turn this off for every minor
mode beginend defines by looping over the ~beginend-modes~ variable.
Note that you will /also/ need to "turn off the lights" for
~beginend-global-mode~, which is not part of this list.

If you usually diminish all minor modes, I recommend using [[https://melpa.org/#/minions][minions.el]].

In the following snippets, you can replace ~delight~ with ~diminish~ for
similar results.

Adapting the vanilla Emacs ~init.el~:

#+BEGIN_SRC emacs-lisp
(require 'beginend)
(dolist (mode (cons 'beginend-global-mode (mapcar #'cdr beginend-modes)))
(diminish mode))
(beginend-global-mode)
#+END_SRC

Adapting the [[https://github.com/jwiegley/use-package][use-package]] macro configuration:

#+BEGIN_SRC emacs-lisp
(use-package beginend
:ensure t
:demand t
:config
(dolist (mode (cons 'beginend-global-mode (mapcar #'cdr beginend-modes)))
(diminish mode))
(beginend-global-mode))
#+END_SRC

** Using

At this point, newly opened supported buffers will get improved
versions of ~M-<~ and ~M->~ (or any key bound to ~beginning-of-buffer~
or ~end-of-buffer~).

The following shows some screencasts. In each screencast, the cursor
is moved to the meaningful beginning and end and to the real beginning
and end.

*** Dired mode
[[file:media/beginend-dired-mode.gif]]
*** Magit status mode
[[file:media/beginend-magit-mode.gif]]
*** Message mode
[[file:media/beginend-message-mode.gif]]
*** Programming mode
[[file:media/beginend-prog-mode.gif]]
*** Occur mode
[[file:media/beginend-occur-mode.gif]]

** Contributing

Yes, please do! See [[file:CONTRIBUTING.md][CONTRIBUTING]] for guidelines.

Adding new modes is a matter of a few lines of code. For example,
these five lines (already included) define the behavior of beginend in
~org-agenda-mode~:

#+BEGIN_SRC emacs-lisp
(beginend-define-mode org-agenda-mode
(progn
(org-agenda-next-item 1))
(progn
(org-agenda-previous-item 1)))
#+END_SRC

The first ~progn~ is responsible for moving point to the meaningful
beginning of buffer. Before being executed, point is at the real
beginning of the buffer (i.e., ~point-min~). The expression
~(org-agenda-next-item 1)~ thus moves to the first agenda item.
Similarly, the second ~progn~ is responsible for moving point to the
meaningful end of buffer starting from real end (i.e., ~point-max~).

** License

See [[file:COPYING][COPYING]]. Copyright (c) 2017-2023 [[mailto:[email protected]][Damien Cassou]] and [[mailto:[email protected]][Matus Goljer]].