nvim trick

Posted by Ray on December 16, 2022

Some Neovim tricks

[nvim]{.spurious-link target=”nvim”} [keymap]{.spurious-link target=”keymap”}

< C-Y > scroll-up

<C-U> scroll-down

H, M, L go to high/middle/low it should move to first non empty line

d33| | moves the cursor to the specified column in the current line

Find replace

& stands for the matched words

press * and do :%s//xxx/ the search is omitted and it is the current selected word

Move around

+ - can also be used to move to + Move to first none empty char of next line

<CR> can move to head of next line

word and WORD

The difference between words and WORDS is that the former only include letters, digits and numbers.

word can be a sequences of spaces. do dw inside a sequence of space and see what you get. w, b, e, ge are word motions.

W move on WORD boudnary. following are WORD helloVimWord(){}, [1,2,3,4,5] etc

i a; there is also I and A insert at begin of line and end of line

Y yank; it is same as yy; P past above

s and S was remapped in hop/leap. s -> cl S -> cc

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X delete char left of cursor (<BS> in norm mode)

command range and g / v command

:. current line

:% entire file

`$~last line

*** ~:12` line 12

:12,14s/import/export/g replace from line 12 to 14

:.,.+12 from current line to current line + 12

:.,$ from current line to eof

:g/import/d delete lines include import

:g!/import/d delete lines do NOT include import it same as v command :v/import/d

motion vs / command

all motion can be replace with find / command. e.g dft can also be d/t<cr>

delete

d0 delete to begin of line

use s to delete

  1. :%s/abc//<CR>

  2. it can also write as :%s/abc<CR>

db backward delete word

dvb and dve delete inclusive ; dvge;

das dap

dF* search backward and delete

with surround di* ca* da* etc

dh delete 1 char to the left; d3h delete 3chars to the right

*

#vim~g~

g0 go to 0; same as gg

ge jump back end of word

g& it similar to macro, a command in Vim that repeats the last substitution (:s) command on all lines in the file. It's equivalent to :%s//~/g, where // reuses the last search pattern, and ~ reuses the last replacement string.

gJ join [cnt] lines J: join with remove indent, also works in visual mode

gq format text

wrap: gj, gk jump inside long lines , g$, g^

g<C-A> in visual mode/range, increase number of each line based on fist value in range. e.g. 1 1 1 1 -> 1 2 3 4

gu|U + text obj capitalization, e.g. gu$ guW, guu whole line, gU3w, gufk (lowcase to letter k)

`g~` similar to gu|U

gv re-select text

g& apply the replace changes to full document. It is helpful when you need to replace in one line and check if replace is correct and apply to full text

*

Search and replace

*%s/.$/&;/* .$ match a none empty line `&~is what was matched

*** ~:v/^$/s/$/;`

  1. :v inverse find /^$ is empty line

  2. /s/$/; command of v; replace EOL to ;

\ze: \ze Zero-width ending split the search pattern into two, first half is match can be used later on, e.g. end\ze(if|for) match both endif and endfor but the matched pattern is end so :s/\vend\ze(if|for)/&_/g replace endif to end_if

put=range(1,10) add 1~10 to buffer

<C-R>= e.g. <C-R>=range(1,10) use register with value of expression

indentation

v> indent current line to the right

>G indent from current line the the end of file to the right

=G remove indent from current to eof

>{ indent to right from begin of block to current line

= in visual mode, indent current line (based on context)

>> indent to the right with normal mode

https://www.vimgolf.com/challenges/596dd9ca448256000c000011

https://www.vimgolf.com/challenges/5ba020f91abf2d000951055c

Fugutive diff merge

reference http://vimcasts.org/episodes/fugitive-vim-resolving-merge-conflicts-with-vimdiff/

Gdiff are used to merge diff conflicts. You can also use Gvdiffsplit! It opens

left(the branch you used to work on, or local branch) . The buff is named as fugutive//2

middle the current working file,

right buffer which is the remote branch that you trying to merged into current branch (remote). the buffer named fugutive://3

If the cursor in middle buffer, diffget //2 get changes from left file and use ]c to jump to next merge conflict. and use diffupdate to refresh file

when done, use only to close other windows

You can use diffput 1 to put changes throught. in fugutive, dp default alias to diffput 1

Gwrite!

Diffview

If git in merge status, DiffViewOpen will show the conflicts files

<Leader>co|ct|cb|ca select Ours, Theirs, Base and All or dx choose none

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