Questions tagged [variables]
For questions about vimscript variables, their scopes, and usages.
67
questions
2
votes
1answer
39 views
How can I access buffer variables from BufUnload/BufDelete?
vimdoc says:
BufUnload
Before unloading a buffer.
...
NOTE: When this autocommand is executed, the
current buffer "%" may be different from the
buffer being unloaded "<afile>".
Don't change ...
3
votes
2answers
160 views
Sort output of let or set
How to sort the output of let or get? E.g., I want to sort all global variables containing "python":
:filter python let g:
0
votes
1answer
44 views
function variable scoping and arg types problems
I'm trying to make a small extension/bug fix to a plugin I rely on (referenced as Plugin in the code snips), therefore I'm constrained by its existing API.
I've got the functionality I want somewhat ...
3
votes
1answer
138 views
VimL/Vimscript: how to access local variable of outer function from its inner function?
I posted this question on stackoverflow already, but realized afterwards that it's probably better to ask here.
So I have a function of the following form:
function! s:my_function(dict_arg)
let ...
3
votes
1answer
64 views
How do I use a variable or return value in option, command, or mapping?
I have a variable foo with let foo='value', and a function F like
function F()
return 'value'
endfunction
and I want to use them
in an option: :set option=foo, :set option=F(); or
in a command: :...
3
votes
2answers
214 views
Get file name and directory in .vimrc file
I have mapped my F5 key in vimrc file to run the code using the following command:
map <F5> :!sh -xc 'cd "/home/hashir/vscode/" && g++ test.cpp && ./a.out
It is working well. ...
1
vote
2answers
395 views
How to delete a line from a variable?
Inside a function, saved multiple lines of external command output to a variable.
How to delete a line from the variable? Like first line.
I can run let tmp = split(variable, "\n") to assign the ...
1
vote
2answers
35 views
How to get dynamic hex format variable width with leading zeros?
strlen(var) can return length without leading zeros.
How to include leading zeros?
Example let var=0x00001234, width shall be 8 instead of 4.
1
vote
2answers
110 views
Gvim - Change window position horizontally
I want to create a command that will place my gvim window to a different "x" location on my screen while maintaining the "y" position.
I do this in my _gvimrc by calling
winpos 319 16
I want to ...
0
votes
1answer
36 views
How to use variables in a user defined command? [duplicate]
I have this user defined command:
command! PS silent! w | PlugSnapshot! ~/.vim/plugins/plugins.lock
How could I change it to take the filepath from a variable, something like this:
let ...
0
votes
1answer
53 views
Ex command to put value of variable into terminal emulator?
Using a terminal emulator (with :term), I would like to insert the value of a variable at the terminal cursor.
In a normal text buffer, I could use put =g:my_variable or exec ("normal! i" . g:...
2
votes
1answer
266 views
How to get the current mode in vim?
I'm writting scripts for vim, and I want to let the script do different things in different mode. I know that the statusline will show the current mode, but I don't know how to get the exact current ...
0
votes
1answer
51 views
How to generate a string by concatenating another string with an environment variable
I need to create a variable with a fool folder direct which need to concatenate from a environment variable and the end notes
function! MyFoo(arg)
let repo=$Project + "/cfora" #Q1 ...
0
votes
2answers
300 views
How to use variables? [duplicate]
I'm trying to use indent size as variable, but it doesn't work.
let indent=4
set tabstop=&indent
set softtabstop=&indent
set shiftwidth=&indent
set expandtab
I tried both &indent and ...
1
vote
1answer
60 views
How to define a varialbe and refer to it later
I need to define variables who can hold number or strings. Those variables would be used later in the key mapping
for example
let bookMark=Lib7 //:echo boomMark do give out Lib7
nmap gb :<c-u>...
3
votes
1answer
385 views
How can I use the return value of a function in a :set command?
I want to set an option to a string containing full path of current working directory. For example
set tags=getcwd()."\tags" " retrieve the full path of the tags file in current workding directory ...
1
vote
1answer
127 views
Is there a way to get a tab-local variable for a tabpage that is not currently activated
I want to retrieve a t:varible for a different tabpage that is not the current tabpage. How can I do it without switching to that tabpage? I know its tabpagenr.
How about window local variables w: ...
1
vote
2answers
28 views
How to edit variable's content?
For example, I've used redir command to redirect command output to register a.
Register a contains several lines of text.
How to remove a line from register a or substitute a string from it?
1
vote
1answer
173 views
Give variable to makeprg
I'm trying to put the output of a command into a QuickFix list when a particular key is pressed. That command takes as its argument the word under the cursor, so my function looks basically like this (...
2
votes
2answers
194 views
How to dynamically define variables?
Want to read variable definitions from a tcl file, then dynamically define vim global variables.
set PATH_A /full/path/a
set PATH_B /full/path/b
other_tcl_commands
Read one line, split by space ...
2
votes
0answers
203 views
Why gf is not working with variable?
If there is no variable in path, gf can open the file.
Added sfname+={,} to .vimrc to support ${VARIABLE}.
:!echo ${VAR}/test/file can correctly print full path with ${VAR} expanded.
But if run 'gf' ...
0
votes
2answers
127 views
How to analyse file and get variable definition?
For example, a tcl file, how to analyse the file and get each variable's value?
It can be done by reading each line, check if there is "set XXX ...", then get variable name and its value.
After ...
0
votes
1answer
151 views
Statusline – update variables on file change
I'm currently learning Vimscript, but I'm stuck at a particular problem.
I'm creating a statusline which shows the full path (~) of the file currently displayed in the buffer. Instead of just using %...
1
vote
2answers
354 views
How to quickly edit vim variable content?
In vim I sometimes want to quickly change the content of a variable using its current content as template using vim editing capabilities.
For example I want to append the word "bar" to the existing ...
2
votes
1answer
1k views
How can I use a string variables for filepath in vimscript map command?
I have multiple lines like the once below in .vimrc file.
nnoremap \html :-1read $HOME/.vim/snippets/html_basic.snippet<CR>
nnoremap \bs :-1read $HOME/.vim/snippets/bootstrap.snippet<CR>...
2
votes
1answer
102 views
How to match pattern with buffer-scoped variable
Goal: write code to do block commenting/uncommenting while keeping the current indentation level. This has been solved, see here for my code
Current problem: use s/// to match a line that begins with ...
0
votes
1answer
222 views
How does Vim sets 'shell'?
I have an issue with Vim in NixOS.
The problem is that Vim sets to shell the path to not desired bash (non-interactive bash).
So I want to know how Vim finds a shell and sets its path to shell to ...
0
votes
1answer
41 views
Vim not using variable value when changing a setting
I have the following vimscript:
let g:base_path="~/.config/nvim/"
let g:plugins_path=base_path."plugins/"
let g:repos_path=plugins_path."repos/github.com/"
set runtimepath+=g:repos_path."Shougo/dein....
1
vote
0answers
141 views
How to open a file with variable in the path?
gf runs fine with absolute or relative path.
Is it possible to open a file with variable in the path?
For example, in a tcl file:
...
set FILE_ROOT /user/abc
...
read_file ${FILE_ROOT}/some/path/...
0
votes
2answers
55 views
How to correctly use a local script variable
Suppose I have the following code:
let s:user_config=fnamemodify('user.vim', ':p')
echom 'file found: ' . s:user_config
if filereadable(s:user_config)
source s:user_config
else
echom s:...
0
votes
1answer
63 views
passing local script variables to viml functions
If I run this code:
let s:user_config=fnamemodify('user.vim', ':p')
echom s:user_config
if filereadable("s:user_config")
echom 'this is true'
else
echom 'this is false'
endif
the result will be: ...
-2
votes
1answer
35 views
How do I find out the value of an option? [duplicate]
How do I find out the value of an option? I tried:
:echo ignorecase
:echo g:ignorecase
:echo v:ignorecase
None of these work.
1
vote
1answer
338 views
How do you use variables in a search?
I'd like to pull out a variable something like this to save repeating the same thing
let s:twoLinesStartingWithWords = '^\w\+.*\n\w\+.*'
"next/previous definition
nnoremap <Leader>n /\=s:...
1
vote
0answers
67 views
why is b:changedtick never zero?
As the Title states b:changedtick is never zero.
No plugin or special setting seems to be involved.
Even :
vim -u NONE -U NONE
:echo b:changedtick
returns a value != 0
The same happens if I start ...
1
vote
0answers
379 views
Invoking a command with a defined variable results in “undefined variable”
I'm trying to integrate opam-user-setup's output with vim-plug. I've produced the following:
let s:opam_share_dir = system("opam config var share")
let s:opam_share_dir = substitute(s:opam_share_dir, ...
2
votes
1answer
310 views
What is the difference between let mapleader =”,”, and let g:mapleader=”,”
In one of the most popular vimrc’s available (Aimx’s vimrc), there is a line which maps both leader and g:leader to “,”. https://github.com/amix/vimrc/blob/master/vimrcs/basic.vim#L58
What is the ...
1
vote
1answer
38 views
variable names prefixed with &
It seems that & followed by an option name is an variable containing the option value, such as &diff. What is &l:diff. I assume it is the local value for diff option, but I cannot find the ...
1
vote
1answer
431 views
the scope of variable in vim
I believe the following script in vimrc, which try to set spellfile, has something to do with the scope of vim variable. Especially the difference of $var and g:var:
I can't figure out what's wrong ...
1
vote
2answers
601 views
shortcut of the current directory path when vsplit/split
I very often need to open files through vsplit/split. Very often I want to open files in the same directory. Still, I must pass their paths to vsplit/split.
:vsplit @/siblingfile.txt
@ is an alias ...
0
votes
2answers
80 views
Find value of variable when it is not set (timeoutlen)
How can I find out the default value of a variable if it is not set? For example, the default timeout for the leader key is controlled by the timeoutlen variable, but if I do:
:echo timeoutlen
I get ...
0
votes
4answers
274 views
redirect exmode command to variable
This is perhaps a beginner question, but I'm unable to (intuitively) figure out how to redirect the output of an ex command to a variable for further processing.
Some background: I'm trying to create ...
6
votes
1answer
294 views
Are the internal g:, b:, w:, etc dictionaries documented?
I knew you could scope a variable by prefixing it with g: b:, etc. but I only just discoverred that the prefix itself references a dictionary containing all the scoped variables. For example,
:echo b:...
-1
votes
2answers
241 views
Can't reassign local variable value from register?
Given the following block of text:
title,tags
Run-ons - Comma Splices - Fused Sentences
Rule 1 - Run-ons - Comma Splices - Fused Sentences
Rule 2 - Run-ons - Comma Splices - Fused Sentences
Example ...
2
votes
1answer
468 views
vim cannot access variable in autocmd
I am trying to configure prettier-eslint and prettier-standard as the js formatter with neoformat:
" neoformat should try formatprg where available
let g:neoformat_try_formatprg = 1
augroup vimrc
" ...
5
votes
2answers
299 views
iskeyword for latex
Context
Currently, when I set ft=tex, my set isk? reads
iskeyword=@,48-57,_,192-255
that is, the default for vim.
My "issue"
Currently, in a LaTeX string such as
$\abcde_\fgh$
the w jump would ...
1
vote
2answers
597 views
Copy the values from a variable?
I set a variable b:aaa which has the value that I can see via echo b:aaa, how can I copy that to text? I know I can do it by
set @a = b:aaa
"ap
to get it. But can I copy it to the an open file ...
1
vote
1answer
197 views
How to open a GPG encrypted file without having to choose the GPG recipient with the gnupg plugin?
I want to edit a GPG encrypted file file.asc without having to split the window to enter the recipient.
The recipient can be set in the vimrc.
:let g:GPGDefaultRecipients='<key ID>'
How would ...
1
vote
2answers
637 views
Tell Vim's put to print a string at a position given by the value of a variable
I would like to add a new line in a certain line in a buffer. So far my starting position is as follows:
let newl = "\n"
" set cursor to beginning of buffer
call cursor(1,1)
" search up to 10 lines ...
8
votes
2answers
2k views
`set` option with variables
I am trying to rewrite adding a string to option with variable. The original string is
set rtp+=~/.vim/bundle/Vundle.vim
The following is the working let way:
let MYVIMDIR='/home/loom/foo'
let &...
1
vote
1answer
615 views
how can i assign the content of a function variable to an option?
this is what i wanted to do:
function! Spell(lang)
if a:lang == "off"
set nospell
else
set spell
set spelllang=a:lang
endif
endfunction
unfortunately this does not work ;( this ...
