Questions tagged [variables]
For questions about vimscript variables, their scopes, and usages.
87
questions
1
vote
1answer
89 views
Get value of $MYVIMRC from Lua
I am trying to retrieve the value of $MYVIMRC in my init.lua but I am coming up short because I don't understand what $MYVIMRC actually is.
It is not a global variable, is it?
None of these work:
vim....
6
votes
2answers
1k views
Why is `let foo = $HOME/bar` invalid?
Why is let foo = $HOME valid and let foo = $HOME/bar invalid in vimscript?
I have tried let foo = "$HOME/bar" but it is the equivalent of foo = '$HOME/bar' in shell script, $HOME is not ...
0
votes
0answers
23 views
Save and restore a variable across launches
I wanna save the state of a variable (say, background) such that the state is restored next time I start vim.
More in detail, it should work like this:
I set background to either dark or light.
I ...
3
votes
2answers
305 views
How can I get the list of variables I defined?
For convenience, I'd like to define some variables. But I worry that I may forget their names. How can I get a list of them?
0
votes
1answer
34 views
How to assign fileencoding's value to a variable?
In ex mode,i get the value for set fileencoding.
set fileencoding?
fileencoding=utf-8
How can assign str with the value utf-8 and print it?
let str=`set fileencoding?` #it is a wrong statement,i ...
0
votes
2answers
172 views
Can I use a variable in autocmd pat?
I have 3 languages and any can be a source or target so I need some flexibility.
I am successfully loading a language translation specific setup with this:
let g:tr_source = 'dyu'
let g:tr_target =...
1
vote
2answers
76 views
Insert output of function with variable into buffer
I'm trying to make a vim function that takes a variable and uses that as part of a shell command and buts it into the current buffer.
I tried using read but that just interprets the var as a string.
...
0
votes
1answer
609 views
Inside a mapping check if a variable is empty in vim
So i'm new to vim, and specially new to vimscript, and messing around i made the following code to get the name for a file and then create said file in a new buffer. I want a way to check if FileName_ ...
2
votes
1answer
300 views
What is {what} supposed to mean in the official documentation?
I keep seeing mention of {what} here and there, mainly in eval.txt, popup.txt, terminal.txt, syntax.txt, and channel.txt.
From :h popup_create()
popup_create({what}, {options})
Open a popup window ...
1
vote
2answers
388 views
Global options as function local variables
I'm asking about this code snippet:
:function TextwidthIsTooWide()
: if &l:textwidth ># 80
: return 1
: endif
:endfunction
This is what vim-help says on the l (local) prefix:
Inside ...
1
vote
1answer
29 views
Use variable in vim mapping async task [duplicate]
I am trying to use a variable in this mapping:
let board_ip = "192.168.100.18" │
nnoremap <F6> :AsyncRun echo . ...
0
votes
1answer
26 views
add python option in vimrc
For my fortran ft I use
au BufWritePre <buffer> :silent %!fprettify --silent
in my ftplugin.
The fprettify is a python script with many command line options, using argparse.
Now, my question is,...
0
votes
2answers
41 views
How to store state (e.g. variables) between user actions?
The main question is in the title, that is, I have a function, which is invoked by the user and it should 'remember' necessary stuff between invocations, so the next time the user calls it (like, ...
2
votes
2answers
211 views
How to provide shared variables for plugins?
I've written some Vimscript code* in which it's convenient to have a set of shared color names. To use the names, so far I've had to rely on code like this:
execute 'source ' . expand('<sfile>:...
2
votes
1answer
68 views
How to store a region of text into a variable?
Suppose I have \label{some text} somewhere in my file and I want to store some text into a variable.
Right now what I am doing to achieve this is to first visually select some text and then store it ...
1
vote
2answers
117 views
Is there a 'let' equivalent for setting an option only local to a buffer/window?
When working with options that often have complex or calculated string values (e.g. formatprg, which might have additional parameters, separated by whitespace), it's often easier to use let to set ...
1
vote
1answer
49 views
Possible to set vimrc variables based on the current vim 'incantation'?
I wasn't sure how to word this properly in the title..
what I'm looking to do is set variables one way or another depending on how vim is invoked.
Specifically I have just discovered the Man plugin, ...
2
votes
1answer
77 views
How do I put the List returned from a 'heredoc' (:h Let-HereDocs) into a Dictionary in Vim? How do I also make this work in Neovim?
In :help let-heredoc it explains that one can set a variable to a 'heredoc' where each line of the heredoc becomes an entry in a list as follows:
let text =<< trim END
if ok
echo 'done'
...
3
votes
1answer
39 views
Customizing Latex-Suite star environments
The documentation of Latex-Suite says I can customize the generated environment boilerplates by defining g:Tex_Env_... variables. This works for me. Nevertheless, it goes on to say that for ...
1
vote
1answer
66 views
switch current directory between a base directory and current file directory
Goal:
To achieve filename/path completion relative to current file directory using omni completion CTRL-X CTRL-F.
I open all my files contained in a base directory such that :pwd in some_file outputs ...
2
votes
1answer
89 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
214 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
67 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 ...
5
votes
1answer
649 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 ...
9
votes
1answer
1k 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: :...
4
votes
2answers
778 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
544 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
76 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.
2
votes
2answers
790 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
143 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
108 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:...
4
votes
1answer
2k 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
1k 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
3k 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
63 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>...
4
votes
1answer
513 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 ...
1
vote
1answer
162 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
49 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?
2
votes
1answer
377 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
631 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
446 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
281 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
2answers
494 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
887 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 ...
4
votes
2answers
4k 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
207 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
259 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
44 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
253 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
467 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:...
