95
votes
Accepted
How to fold text in a JSON file?
Yes, it is possible. A minimal setup would be:
:set filetype=json
:syntax on
:set foldmethod=syntax
- 4,528
42
votes
Accepted
What does three commented curly brackets ("{{{) at the end of a line mean? Is it just a comment?
As Jorengarenar said in their answer "{{{2 has to do with foldmarkers. Now, what are foldmarkers anyway? What are they useful for? And how do you use them?
First let's notice that the strings you ...
- 49.4k
13
votes
Is there a best practice to fold a vimrc file
It is a good idea to first define your own categories in your .vimrc (like a list with sublists and subsublists) and add all your plugins/settings/functions to the respective categories. Combined with ...
- 2,089
12
votes
Accepted
How to make jump to line automatically unfold
The foldopen setting controls which commands will open folds. In :help 'foldopen' we can see the list of possible values:
item commands
all any
...
- 61.4k
11
votes
Accepted
oneliner map to fold all / unfold all
So you want to toggle between all lines folded and no lines folded.
Does this mapping do what you want?
:nnoremap <expr> <f2> &foldlevel ? 'zM' :'zR'
- 25.3k
10
votes
Can I save folds?
I do exactly this for one file I refer to a lot NOTES.otl I performed the following in my .vimrc:
" Useful for my Quick Notes feature in my tmuxrc
augroup QuickNotes
au BufWrite,VimLeave NOTES.otl ...
- 1,192
10
votes
Hide certain lines completely (not folding)
I don't know how to achieve exactly what you want, only a part.
You want to hide some text inside ~/.vimrc (for example).
First we need to know which highlight group handles the text you want to ...
- 6,706
10
votes
Accepted
Use of Foldcolumns in Vim
They indicate folds and their nesting levels:
A + plus symbol marks a closed fold, and a - minus marks the first line of an open fold.
If foldcolumn is high enough (i.e. greater that the number of ...
- 31.3k
10
votes
Accepted
Is there a way to edit only part of a file?
You could try the terrific NarrwRgn plugin by our very own Christian Brabandt, which has always worked very well for me.
Just select the lines you're interested in in visual mode, and then type :NR ...
- 31.3k
9
votes
Accepted
Get rid of extra fold dashes when using Vim folding
You can
set fillchars=fold:\
See :h fillchars.
- 9,459
9
votes
Accepted
Folding slow with vimtex
First: Did you bother to read the vimtex documentation, i.e. :h vimtex-folding? The docs clearly point out that the fold-expr method of folding is slow, and so therefore provides an option g:...
- 9,459
9
votes
Accepted
How can I enable folding only for files longer than a certain length?
You can use the line() function to fold or unfold your file:
" In your vimrc
if line('$') > 20
set foldlevel = 1
endif
line('$') returns the line number of the last ($) line of your document.
...
- 15.9k
9
votes
Accepted
Brace { } navigation without opening folds
Thanks to @romainl for this answer on super user. I couldn't have written this without their help!
You can use the foldopen option to determine which set of motions will or won't open a fold. From :h ...
- 17.4k
8
votes
Accepted
Is it possible to create a folding inside a single line?
You can hack around with some custom syntax and the use of the conceal:
syntax region FunctionArguments start=+(+hs=e+1 end=+)+he=e-1 conceal cchar=…
set concealleval=1
e.g.
function (a, b, c, d, e)...
- 15.9k
8
votes
Accepted
Recursively open all folds in current open fold?
I don't think there's anything shorter than zczA. That's pretty easy and probably what I'd do. I guess you could shorten it a bit with a mapping ;)
:nnoremap <leader>O zczA
But let's say you ...
- 19.6k
7
votes
How to fold markdown using the built-in markdown mode?
Markdown folding:
As ana found out, for markdown specifically make sure that you have let g:markdown_folding = 1 or folding wont be "turned on".
General folding tips:
Vim won't fold automatically, ...
- 7,706
6
votes
Accepted
Keep beginning of current fold on top of the screen
So following the idea I suggested in comments here is what I've come up with:
First let's demonstrate it with a gif (I'm not sure why the cursor leaves this ugly mark):
The idea is to:
Set the ...
- 49.4k
6
votes
Accepted
Count number of visible lines in document with folding?
Nice idea! Here's a basic function that achieves your goal using a different technique:
function! FitOnPage()
normal! zR
while &foldlevel > 0
if line('w0') == 1 && line('w$') ==...
- 31.3k
6
votes
Accepted
Strange Fold Info Showing in Gutter
What you see is the 'foldcolumn' setting for opened folds. If you don't want it, simply disable it: :set foldcolumn=0 To find out where it was set, enter :verbose set foldcolumn? You might also play ...
- 25.3k
6
votes
Accepted
How to select/delete/yank the contents of only the current fold?
There is no text object for folds in vim, but there is a plugin which provides them, az/iz: https://github.com/kana/vim-textobj-fold
Here are vanilla alternatives:
vi{/va{. This may or may not ...
- 14k
6
votes
How to select/delete/yank the contents of only the current fold?
To delete the current fold, you simply have zd for instance
Otherwise, you could also define an operator-pending mode mapping with for instance:
:onoremap iz :<c-u>normal! [zV]z<cr>
...
- 17k
6
votes
Shuffle multiline folds
There is a :folddoclosed command which iterates over all closed folds (just like :g command for the whole buffer) and executes one or more commands on them. So I would close all folds, convert each ...
- 1,682
5
votes
Is it possible to create a folding inside a single line?
EDIT Actually I should have digged the doc a little more: using the syntax match is much more appropriate than the syntax region for what I want to do:
The final solution that I will use it the ...
- 49.4k
5
votes
Accepted
How to change the fold title in vim
No problem. Here is a basic implementation:
set foldtext=FoldText()
function! FoldText()
let l:fs = match(getline(v:foldstart, v:foldend), '"label":')
if l:fs < 0
return foldtext()
...
- 14k
5
votes
Accepted
Re-sync _folds_ from start
It sounds like you're looking for zx or zX.
From the Vim documentation on fold,
zx
Update folds: Undo manually opened and closed folds: re-apply
'foldlevel', then do "zv": View cursor line. ...
- 1,203
5
votes
Accepted
How to unravel wrapped text
First of all the "wrapped" text is actually a folded text (see :h folds)
To open the closed folds, you can
Place your cursor on the folded texts and do zo to open it (see :h zo)
Place your cursor on ...
- 5,544
5
votes
Accepted
Only Open Folds With z Commands
You can set the 'foldopen' option to control which commands or movements will open folds.
The specific cases you mentioned:
h or l: these are horizontal movements, controlled by the hor setting.
...
- 28.4k
5
votes
Accepted
How do you disable automatic code folding?
Put set nofoldenable in your vimrc. This will also accomplish what your autocommand does.
- 511
4
votes
Accepted
Folding my .vimrc doesn't work as expected
Make the else if an elseif.
Also I find it usually simpler to give the variable v:lnum as parameter to the foldfunction. This makes it easier to debug the function.
Some hints:
You can use :set ...
- 25.3k
4
votes
Accepted
Fold outside a selection
A very basic solution would be to use the following macro:
qqggzf'<'>zfGq
First visually select the text you want to focus on and use the macro with @q.
To detail:
qq start recording the ...
- 49.4k
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