Lab: Basic editing and moving around


Agenda
* navigating a document
* normal mode editing commands
* insert mode key mappings
* vim additions


navigating a document
gg        jump to beginning of a document
G         jump to end of a document

H         move cursor to top of screen (high)
M         move cursor to middle of screen (middle)
L         move cursor to bottom of screen (low)

ctrl-Y    scroll viewport up a single line
ctrl-E    scroll viewport down a single line (end)
ctrl-U    scroll up a half page
ctrl-D    scroll down a half page
pgup      scroll a whole page up
pgdn      scroll a whole page down

/[query]  regex search (? for backward search)
n         next result
N         previous result


editing in normal mode
i         go to insert mode on cursor position (insert)
a         go to insert mode after cursor position (append)
I         go to insert mode at line start
A         go to insert mode at line end

x         delete single character under cursor
X         delete single character before cursor
r         replace a single character
R         go to replace mode
~         change case of a single character

yy        yank a single (copy)
dd        delete a single line (cut)
cc        change a single line
p         paste after cursor
P         paste before cursor

u         undo last change
.         repeat action

C         change from current cursor position up to the end of the line
D         delete from current cursor position up to the end of the line
Y         yank a single line

o         insert new line after cursor -> go to insert mode
O         insert new line before cursor -> go to insert mode
>>        indent one level more
<<        indent one level less


vim additions
ctrl-r    redo
ctrl-a    increment number
ctrl-x    decrement number

*         search for word under cursor
#         search for word under cursor (backwards)

`"        last exit current buffer
`.        last insert location
`[        first character of last yanked or changed text
`]        last character of last yanked or changed text

# creating custom marks
https://vimhelp.org/usr_03.txt.html#03.10


revisiting insert mode
ctrl-w     deletes word before cursor (word)
ctrl-u     deletes everything before cursor

ctrl-d     decrease indentation (decrease)
ctrl-t     increase indentation (tab)

ctrl-o     executes a single command in normal mode (only one command)

ctrl-y     copy character above cursor
ctrl-e     copy character below cursor

ctrl-n     complete with next match
ctrl-p     complete with previous match
ctrl-e     abort the autocomplete menu (end)

https://vimhelp.org/insert.txt.html