Emacs Plugins

Table of Contents

1 Tmp

https://www.emacswiki.org/emacs/KeyChord

2 ERC

  • erc: connect
  • erc-iswitch: C-c C-b
  • erc-join-channel: C-c C-j
  • erc-save-buffer-in-logs: C-c C-l
  • erc-channel-names: C-c C-n: run /names #channel command in the current channel.
  • erc-part-from-channel: C-c C-p: leave the channel
  • erc-quit-server: C-c C-q: disconnect server

IRC commands

  • identify: /msg NickServ identify <password>
  • join: /join #linux
  • register: /msg NickServ register <psssword> <email>
  • private talking: /query <nick>. Only registered people can be queried

3 Flycheck

The default (at least the one I'm using) for C/C++ is c/c++-clang.

  • flycheck-describe-checker
  • flycheck-list-errors

4 AUCTex

  • C-c C-c: tex-compile

5 DocView

Can view pdf in emacs. It is convenient to use the same keybinding for tex-compile: when you press C-c C-c the second time after compilation, it will default to \doc-view.

5.1 navigation

  • C-p C-n C-b C-f still works
  • + and - to adjust scale
  • n and p for page navigation
  • space and delete to page up and down across pages
  • M-< and M-> still works
  • M-g M-g works as jump to page

6 pdf-tools

The doc view produce very blur text. The pdf-view-mode provided by pdf-tools solved this. Also, this package is said to open pdf on demand. It seems to solve my concern for pdf greatly.

Extra bonus:

  • search in text
  • view and edit annotations!

http://emacs.stackexchange.com/questions/19686/how-to-use-pdf-tools-pdf-view-mode-in-emacs

6.1 Installation

sudo aptitude install libpng-dev libz-dev 
sudo aptitude install libpoppler-glib-dev 
sudo aptitude install libpoppler-private-dev
sudo aptitude install imagemagick

cd /path/to/pdf-tools
make install-server-deps # optional
make -s
make install-package
# or M-x package-install-file RET pdf-tools-${VERSION}.tar RET

activate in emacs by (pdf-tools-install)

6.2 key binding

  • o: open outline
  • Q: kill buffer
  • q: kill window

7 Paredit

command Key description
paredit-forward-slurp-sexp C-) enclose the next into this sexp
paredit-forward-barf-sexp C-} exclude
paredit-backward-slurp-sexp C-(  
paredit-backward-barf-sexp C-{  
paredit-wrap-round M-(  
paredit-join-sexp M-J  
paredit-splice-sexp M-s  
paredit-split-sexp M-S  
paredit-raise-sexp M-r  
paredit-convolute-sexp M-? exchange child and parent

8 Magit

C-x g to enter, and

  • c c to commmit
  • c a to amend commit
  • P u to push
  • F u to pull

9 Speedbar

This is strictly not a plugin. Toggle by speedbar.

q
quit
g
refresh
t
toggle slowbar mode, which stop update until activate
n,p
next, previous
M-n,M-p
restricted next/previous. Will 1) skip subdirectory, and 2) will not leave subdirectory
f
file mode
b
buffer mode
r
previous mode
=
expand
-
hide
RET
open

9.1 Buffer Mode

k
kill the buffer
r
revert the buffer

10 EDBI

This is database viewer for MySQL, Sqlite, Postgresql.

Install edbi and edbi-sqlite package and run as root: 

cpan RPC::EPC::Service DBI DBD::SQLite DBD::Pg DBD::mysql

Run edbi-sqlite to open a sqlite database. This will open database view.

To sum up:

n/p
nav rows
c
query editor
C-c C-c
execute
q
quit
RET
go into
SPC
display info
V
show table data

10.1 Database View

n/p
nav rows
c
switch to query editor buffer
RET
show table data
SPC
show table definition
q
quit and disconnenct

10.2 Table definition View

n/p
c
V
show table data
q
kill buffer

10.3 Query Editor

C-c C-c
execute
C-c q
kill buffer
M-p/n
SQL history back/forward

10.4 Query Result Viewer

n/p
SPC
display whole data at current cell, hit SPC again to dismiss
q
quit

11 EMMS

11.1 Add files into playlist

  • emms-add-file
  • emms-add-directory
  • emms-add-directory-tree (recursive)
  • emms-add-playlist (m3u)
  • emms-add-find: use regexp with find

11.2 Interactive control in playlist mode

  • emms-start
  • emms-stop (s)
  • emms-next (n)
  • emms-previous
  • emms-shuffle
  • emms-pause (P)
  • emms-random (r): go to a randomly selected track in the playlist
  • emms-sort
  • emms-show (f): show the current track in minibuffer
  • emms-seek-forward (>)
  • emms-seek-backward (<)
  • emms-playlist-mode-center-current (c): center the current song
  • emms-playlist-mode-play-smart (RET): play the song under cursor
  • emms-playlist-mode-bury-buffer (q): bury buffer
  • emms-playlist-mode-clear (C)

In playlist mode, you can kill and yank as normal, use C-j to insert newline.

In addition to the default playlist, we also have the markable playlist. The emms-mark-mode and emms-mark-mode-disable can switch between them. In the mark mode, you can:

  • emms-mark-forward (m)
  • emms-mark-unmark-all (U)
  • emms-mark-toggle (t)
  • emms-mark-unmark-forward (u)
  • emms-mark-regexp (% m)

When tracks are marked, you can

  • emms-mark-delete-marked-tracks (D)
  • emms-mark-kill-marked-tracks (K): like D, but put into kill ring, so we can yank it back
  • emms-mark-copy-marked-tracks: just kill, ready for yank

Play Property

  • emms-repeat-playlist: variable, non-nil means repeat the playlist
  • emms-toggle-repeat-playlist: change emms-repeat-playlist
  • emms-toggle-random-playlist: random

Play list

  • emms-playlist-new
  • emms-playlist-save (C-x C-s): just use m3u format

11.3 Edit the tags:

  • emms-tag-editor-edit (E): need to have software support. E.g mp3info
  • emms-tag-editor-rename-format: this variable controls how to generate file name from meta data, nice!
  • emms-tag-editor-rename: this function perform file renaming according to above format

11.4 Smart Browser

emms-smart-browse to enter the smart browsing page.

11.4.1 TODO when I start emacs, it can find all the music, how did it remember?

In browser, you can update by relist the browser

  • emms-browse-by-artist (b 1)
  • emms-browse-by-album
  • emms-browse-by-genre
  • emms-browse-by-year

Interact:

  • emms-browser-add-tracks (RET)
  • emms-browser-add-tracks-and-play (C-j)
  • emms-browser-toggle-subitems (SPC): toggle subitems
  • emms-browser-collapse-all (1)
  • 2: expand one level
  • 3: expand two levels
  • 4: expand three levels
  • emms-browser-clear-playlist (C): also clear the playlist, but use capital
  • E: expand everything
  • d: visit the current directory
  • r: jump to a random track
  • /: search