I'm trying to run tags upon file save. But I can't get the current buffers name inside the function, I need this after the write, since I want ctags to process the new amendments. Ideally I want to pass the . argument into the function from the autocmd
23 function! UpdateTagsIfHasTags()
24 echom "adsfsdf"
25 return
26 let tagsPath = printf('%s/tags', expand("%:h"))
27 if !empty(glob(tagsPath))
28 system(printf('/usr/local/bin/phpctags %s', filepath))
29 endif
30 endfunction
31 augroup tags
32 autocmd!
33 autocmd BufEnter *.tex silent! !start /min ctags *.tex
34 autocmd BufEnter *.php :call UpdateTagsIfHasTags()
35 augroup END
How can I pass the current file path to the function?
You can get autocmd file name with special variables <afile> or <amatch>. See :h expand, :h <afile>, :h <amatch> for details.
function! Update()
echom expand('<afile>')
echom expand('<amatch>')
endfunction
autocmd BufEnter *.vim :call Update()
Related
I have the following keymaps:
nnoremap <silent> <leader>vn :call Number()<CR>
function! Number()
set number relativenumber
augroup numbertoggle
autocmd!
autocmd BufEnter,FocusGained,InsertLeave * set relativenumber
autocmd BufLeave,FocusLost,InsertEnter * set norelativenumber
augroup END
endfunction
nnoremap <silent> <leader>vN :call NoNumber()<CR>
function! NoNumber()
set number! norelativenumber
augroup numbertoggle
autocmd!
autocmd BufEnter,FocusGained,InsertLeave * set norelativenumber
autocmd BufLeave,FocusLost,InsertEnter * set norelativenumber
augroup END
endfunction
But I would like to use only one <leader>vn shortcut for this; i.e. to call NoNumber if Number has already been called. What is the correct way to do this?
It seems like I can use if ... else in Number function, but I'm not sure how to implement it correctly. Or is there some other way?
Just check if the option number is set:
if &number
set nonumber
else
set number
endif
See the docs on using &option.
You can combine if with the mapping:
:nnoremap <silent> <leader>vn :if &number | call NoNumber() | else | call Number() | endif<CR>
I am trying to use a template for Ruby files, by adding this to my .vimrc:
function! RubyTemplate()
" Add pragma comment
call setline(1, '# frozen_string_literal: true')
" Add two empty lines
call append(1, repeat([''], 2))
" Place cursor on line number 3
call cursor(3, 0)
endfunction
autocmd BufNewFile *.rb :call RubyTemplate()
However, this doesn't work and when I open a new Ruby file, it's empty.
Everything works as expected if I issue an :e! afterwards. However, this doesn't work if I add e! to the function, so I have to manually fire it every time.
What am I doing wrong?
You can use a static template file instead of invoking a function.
For instance, you can create a template file for your ruby scripts in your vim directory as ~/.vim/skeletons/ruby.skel, with the desired contents.
1 # frozen_string_literal: true
2
3
Then in your vimrc you should add the following code:
" Skeleton for .rb files
augroup ruby
" Remove all existing autocommands in the group
au!
au BufNewFile *.rb 0r ~/.vim/skeletons/ruby.skel
augroup end
Noah Frederick has an elegant solution that allows us to insert snippets manually or automatically.
It uses ultisnips plugin and two files
" after/plugin/ultisnips_custom.vim
if !exists('g:did_UltiSnips_plugin')
finish
endif
augroup ultisnips_custom
autocmd!
autocmd BufNewFile * silent! call snippet#InsertSkeleton()
augroup END
and
" autoload/snippet.vim
function! s:try_insert(skel)
execute "normal! i_" . a:skel . "\<C-r>=UltiSnips#ExpandSnippet()\<CR>"
if g:ulti_expand_res == 0
silent! undo
endif
return g:ulti_expand_res
endfunction
function! snippet#InsertSkeleton() abort
let filename = expand('%')
" Abort on non-empty buffer or extant file
if !(line('$') == 1 && getline('$') == '') || filereadable(filename)
return
endif
call s:try_insert('skel')
endfunction
In my case, I have done some changes but now if I create an empty python file, for example, I end up with:
An important note: In my case, if vim or neovim is not detecting the filetype correctly, and it can be done with auto commands, your automatic snippet insertion will not work.
I'd like the netrw explorer to automatically close after opening a file.
For example:
:Lex to open file explorer
Open file
Upon open, the file explorer automatically closes.
I've tried setting:
autocmd FileType netrw setl bufhidden=wipe
But it doesn't work.
Rest of relevant .vimrc settings:
let g:netrw_banner = 0
let g:netrw_liststyle = 3
let g:netrw_altv = 1
let g:netrw_winsize = 25
noremap <C-x> :Lex<CR>
autocmd FileType netrw setl bufhidden=wipe
I took this snippet from another Stack Overflow answer (linked below) and added it to the BufWinEnter event to solve this problem.
" Close after opening a file (which gets opened in another window):
let g:netrw_fastbrowse = 0
autocmd FileType netrw setl bufhidden=wipe
function! CloseNetrw() abort
for bufn in range(1, bufnr('$'))
if bufexists(bufn) && getbufvar(bufn, '&filetype') ==# 'netrw'
silent! execute 'bwipeout ' . bufn
if getline(2) =~# '^" Netrw '
silent! bwipeout
endif
return
endif
endfor
endfunction
augroup closeOnOpen
autocmd!
autocmd BufWinEnter * if getbufvar(winbufnr(winnr()), "&filetype") != "netrw"|call CloseNetrw()|endif
aug END
Original answer here:
https://vi.stackexchange.com/questions/14622/how-can-i-close-the-netrw-buffer
This one in particular https://vi.stackexchange.com/a/29004
Try using :Explore, :Sexplore, :Hexplore, or :Vexplore instead of :Lexplore. The primary reason for :Lexplore is to have a persistent explorer on one side or the other; the others already go away when you select a file with <cr>.
When I issue a vim command that starts with :%!, such as :%!sort to sort all lines in the buffer, the cursor moves to the first line. How do I preserve the cursor position?
Ultimately, I want to use this command in an autocmd, such as:
augroup filetype_xxx
autocmd!
autocmd BufWrite *.xxx :%!sort
augroup END
Will the same method work in both places?
You can use a mark to remember the current line number (but note that the line contents could change):
augroup filetype_xxx
autocmd!
autocmd BufWrite *.xxx :kk
autocmd BufWrite *.xxx :%!sort
autocmd BufWrite *.xxx :'k
augroup END
I would rather use the Preserve function. Beyond solving your problem in this particular task you can use it for much more.
" preserve function
if !exists('*Preserve')
function! Preserve(command)
try
let l:win_view = winsaveview()
"silent! keepjumps keeppatterns execute a:command
silent! execute 'keeppatterns keepjumps ' . a:command
finally
call winrestview(l:win_view)
endtry
endfunction
endif
augroup filetype_xxx
autocmd!
autocmd BufWrite *.xxx :call Preserve("%!sort")
augroup END
You can also use the "Preserve Function" to perform other useful tasks like:
command! -nargs=0 Reindent :call Preserve('exec "normal! gg=G"')
DelBlankLines')
fun! DelBlankLines() range
if !&binary && &filetype != 'diff'
call Preserve(':%s/\s\+$//e')
call Preserve(':%s/^\n\{2,}/\r/ge')
endif
endfun
endif
command! -nargs=0 DelBlank :call DelBlankLines()
nnoremap <Leader>d :call DelBlankLines()<cr>
" remove trailing spaces
if !exists('*StripTrailingWhitespace')
function! StripTrailingWhitespace()
if !&binary && &filetype != 'diff'
call Preserve(":%s,\\s\\+$,,e")
endif
endfunction
endif
command! Cls call StripTrailingWhitespace()
cnoreabbrev cls Cls
cnoreabbrev StripTrailingSpace Cls
I have follwing in my .vimrc to hightlight all words that matches the one on current cursor
autocmd CursorMoved * silent! exe printf('match Search /\<%s\>/', expand('<cword>'))
But sometimes it is a little annoying, so I'd like to map a key to turn on or off it, e.g. <F10>
How can I do this?
Clear the autocommand and remove highlight:
nmap <f8> :autocmd! CursorMoved<cr> :call clearmatches()<cr>
and to turn it back on using a different key:
nmap <f9> :autocmd CursorMoved * silent! exe printf('match Search /\<%s\>/', expand('<cword>'))<cr>
Put the following in your .vimrc:
let g:toggleHighlight = 0
function! ToggleHighlight(...)
if a:0 == 1 "toggle behaviour
let g:toggleHighlight = 1 - g:toggleHighlight
endif
if g:toggleHighlight == 0 "normal action, do the hi
silent! exe printf('match Search /\<%s\>/', expand('<cword>'))
else
"do whatever you need to clear the matches
"or nothing at all, since you are not printing the matches
endif
endfunction
autocmd CursorMoved * call ToggleHighlight()
map <F8> :call ToggleHighlight(1)<CR>
The idea is, if you call the function with an argument it changes the behavior to print/no print.
The autocommand just uses the last setting because the function there is called without an argument.