Vim

Vim and vim-mode in other tools. Should probably be broken up into different pages.

Tips

cit Change Inside Tag. Can be used anywhere in the line and will find the nearest tag to change inside of.
Vim Surround #
- dst Delete Surrounding Tag.
Replace with Register #
- gr replace with unnamed register
- grr replace line with unnamed register
- "xgr replace with register x

Workflows

Run vim index.html to create a new HTML file from scratch. Have good defaults like shorter tabs etc.
Working with files in a project. Find files, create new.
Create a new directory when creating a new file (Create file in non-existing directory)
Easily add support for a new workflow, for e.g. editing Liquid templates with Jekyll
Built-in terminal
- Toggle, hide
- Scrollback

Working with the terminal

When Zsh is also configured to use Vim mode, what commands get interpreted by which Vim?

:term to open a terminal in a new window (will split the screen) Ctrl-d to close the window (will remove the split) Ctrl-W N for Normal mode (special "terminal-normal" mode, :h Terminal-mode) Ctrl-W : command mode (Ex command)

Working with buffers and windows

Key Concepts

word vs WORD

A word consists of a sequence of letters, digits and underscores, or a sequence of other non-blank characters, separated with white space (spaces, tabs, <EOL>). This can be changed with the 'iskeyword' option. An empty line is also considered to be a word. A WORD consists of a sequence of non-blank characters, separated with white space. An empty line is also considered to be a WORD.

Usage

operator [number] motion

operator - is what to do, such as d for delete
[number] - is an optional count to repeat the motion
motion - moves over the text to operate on, such as w, $

Motions

h,j,k,l Arrows
bB To beginning of word/WORD
eE To end of current word/WORD
wW To start of next word/WORD
ge To end of previous word
$ To end of the line
0 To start of line

Repeating

3w Move cursor 3 words forward. Equivalent to pressing w three time.
30i- Esc Insert a dash 30 times

Finding

f, F Find next, previous character
fo Find next "o"
3fq Find third "q"
*, # Find next, previous word under cursor
/ Search forward
? Search backward
n,N Find next, previous result
Ctrl+g show status line

Jumping

% jump to matching parens
0 start of line
$ end of line
gg beginning of file
G end of file
20G line 20
Ctrl-o Back (history)
Ctrl-I Forward (history)

Inserting

i Insert before cursor (before the character under the cursor)
I Insert at beginning of line
a Append After cursor (after the character under the cursor)
A Append After line (at end of line)
o Open line below
O Open line above

Editing

r Replace character
rx E.g., replace with "x"
R Replace multiple characters (overwrite). This is actually a different mode, called "REPLACE (paste)"
c Change (goes into Insert mode)
ce Change to end of word
dw Delete to next word
d2w Delete two words
de Delete to end of word
d$ Delete to end of line
dd Delete current line
2dd Delete two lines
df Delete until find result (inclusive)
df. E.g., delete until .
u Undo
U Undo whole line, restore line to its original state
. Redo?
s/old/new/g Substitute "new" for "old". /g means globally (for the current line)
#,#s/old/new/g Substitute within lines in range #,#
%s/old/new/g Replace across entire file
%s/old/new/gc Replace across entire file but ask for confirmation each time

Selection and Registers

Things deleted with d get stored in a register
p Put command, put from the register. Put below/after
v Visual selection
y Yank selection, or with operator
yw E.g., yank one word

Files

w Save file
w With selection - save subset of file
r Read file
r ! Read output of command
r !ls E.g., read output of ls

Commands

:! Run external commands
:!ls E.g., run ls

Window Management

Ctrl+W h,j,k,l Move between windows in direction
Ctrl+ww Switch windows

Tips

For learning vim

Disable Insert mode features, don't allow backing beyond the initial insertion point, don't allow arrow keys
Relative line numbers
(from Improving Vim Speed - YouTube)