nix-config/home/base/desktop/editors

Editors

My editors:

1. Neovim
2. Emacs
3. Helix

And Zellij for a smooth and stable terminal experience.

Tutorial

Type :tutor(:Tutor in Neovim) to learn the basics usage of vim/neovim.

VIM's Cheetsheet

Here only record my commonly used keyboard keys, to see a more comprehensive cheetsheet: https://github.com/rtorr/vim-cheat-sheet

Both Emacs-Evil & Neovim are compatible with vim, sothe key-bindings described here are common in both Emacs-Evil, Neovim & vim.

Terminal Related

I mainly use Zellij for terminal related operations, here is its terminal shortcuts I use frequently now:

Action	Zellij's Shortcut
Floating Terminal	Ctrl + p + w
Horizontal Split Terminal	Ctrl + p + d
Vertical Split Terminal	Ctrl + p + n

File Management

Action
Save selected text to a file	:w filename (Will show :'<,'>w filename)
Save and close the current buffer	:wq
Save all buffers	:wa
Save and close all buffers	:wqa

Text Manipulation

Basics:

Action
Move to the start/end of the buffer	gg/G
Move the line number 5	5gg / 5G
Move left/down/up/right	h/j/k/l or 5h/5j/5k/5l
Move to the matchpairs, default to (), {}, []	%
Delete the current character	x
Delete the selection	d
Undo the last change	u
Redo the last change	Ctrl + r

Convert Text Cases:

| Toggle text's case | ~ | | Convert to uppercase | U | | Convert to lowercase | u |

Misc:

Action	Shortcut
Toggle visual mode	v (lower case v)
Select the current line	V (upper case v)
Toggle visual block mode	<Ctrl> + v (select a block vertically)
Fold the current code block	zc
Unfold the current code block	zo
Jump to Definition	gd
Jump to References	gD
(Un)Comment the current line	gcc

Action
Join Selection of Lines With Space	:join or J
Join without spaces	:join!
Move to the start/end of the line	0 / $
Enter Insert mode at the start/end of the line	I / A
Delete from the cursor to the end of the line	D
Delete from the cursor to the end of the line, and then enter insert mode	C

Advance Techs:

• Add at the end of multiple lines: :normal A<text>

  • Execublock: :A<text>
  • visual block mode(ctrl + v)
  • Append text at the end of each line in the selected block
  • If position exceeds line end, neovim adds spaces automatically

• Delete the last char of multivle lines: :normal $x

  • Execute $x on each line
  • visual mode(v)
  • $ moves cursor to the end of line
  • x deletes the character under the cursor

• Delete the last word of multiple lines: :normal $bD

  • Execute $bD on each line
  • visual mode(v)
  • $ moves cursor to the end of line
  • b moves cursor to the beginning of the last word

Search

Action	Command
Search forward/backword for a pattern	/ / ?
Repeat the last search in the same/opposite direction	n / N

Find and Replace

Action	Command
Replace in selected area	:s/old/new/g
Replace in current line	Same as above
Replace in whole file	:% s/old/new/g
Replace with regex	:% s@\vhttp://(\w+)@https://\1@gc

1. \v means means that in the regex pattern after it can be used without backslash escaping(similar to python's raw string).
2. \1 means the first matched group in the pattern.

Replace in the specific lines

Action	Command
From the 10th line to the end of the file	:10,$ s/old/new/g or :10,$ s@^@#@g
From the 10th line to the 20th line	:10,20 s/old/new/g

The postfix(flags) in the above commands:

1. g means replace all the matched strings in the current line/file.
2. c means ask for confirmation before replacing.
3. i means ignore case.

Buffers, Windows and Tabs

• A buffer is the in-memory text of a file.
• A window is a viewport on a buffer.
• A tab page is a collection of windows.

Action	Command
Show all buffers	:ls
show next/previous buffer	]b/[b or :bn[ext] / bp[rev]
Split the window horizontally	:sp[lit]
Split the window horizontally	:vs[plit]
New Tab(New Workspace in DoomEmacs)	:tabnew
Next/Previews Tab	gt/gT