I want to write a vim script that opens a new window with vsplit, where the width of the new window is equal to the total number of columns minus 90.
The result would be, the current window would be 90 columns wide (to view 80 cols of code + gutter) and the new vsplit would occupy whatever part of the screen is left over.
If I understand vsplit correctly, :vsplit 90 specifies the window being created should be 90 columns. Is there a way to get the current number of columns in a window into a variable?
let cur_cols = [insert magic here]
let win_width = cur_cols - 90
execute "vsplit ". win_width
Use winwidth to find width of window. winwidth returns width as the no. of characters window can accommodate. In your case, use
let cur_cols = winwidth(0)
Here the parameter 0 refers to current widow. For more information,
:help winwidth
:help :vsplilt
Related
For example, suppose I want to implement a plugin that draws a margin line at 80 colums using custom characters (suppose I want the line to made from a column of * characters).
How can that be done in Vim or Neovim?
But more generically, is there a way to draw stuff over the text buffer without affecting the text content?
For example, how can I draw an inner rectangle inside a window which I can make bright colored in order to show the active window? The effect would be that the first line visible line of what is currently a text buffer would be filled with --- characters, the right-most column of the what is currently a text buffer would be filled with |. This would be inside the window, separate from the statuslines or vertical split lines.
Etc. How to do such things?
Some plugins that currently draw over the text buffer in different ways:
https://github.com/easymotion/vim-easymotion
https://github.com/Yggdroot/indentLine
EasyMotion does not draw over the text, i don't think this is possible.
What it does is defined in following function (sourcecode):
function! EasyMotion#helper#VarReset(var, ...) "{{{
if ! exists('s:var_reset')
let s:var_reset = {}
endif
if a:0 == 0 && has_key(s:var_reset, a:var)
" Reset var to original value
" setbufvar( or bufname): '' or '%' can be used for the current buffer
call setbufvar('%', a:var, s:var_reset[a:var])
elseif a:0 == 1
" Save original value and set new var value
let new_value = a:0 == 1 ? a:1 : ''
" Store original value
let s:var_reset[a:var] = getbufvar("", a:var)
" Set new var value
call setbufvar('%', a:var, new_value)
endif
endfunction "}}}
So it saves every replaced char and restores them afterwards.
I haven't looked at indentLine but it probably does intelligent listchars, as there is never text under the indentchar.
Anyway it isn't as if I am an expert on one of the plugin or vim in general. I just write this answer because i think there are easier way to achieve what you want. You could for example highlight the border lines with a certain color, or change the background for the active split. There is also a plugin for dimming inactive splits: https://github.com/blueyed/vim-diminactive
I have been using python 3.4 and tkinter to create an application to parse logs and format data and display results in a text widget. I would like to highlight text that is located at a known position on each line in the text window. I have seen similar highlighting questions regarding highlighting text in text widgets on this site and it has been very helpful.
My problem is that I don't need to search for the string or characters to highlight. I have the locations that I want to highlight and it could be any character in that location including white space. For example: I would like to highlight positions 0, 20, 40 on each line (eg: index 1.0, 1.20, 1.40, 2.0, 2.20, etc).
Since it is large files being written to the textbox I have to do this for the entire scrollable text window, so I need to maintain the textbox line number position.
When referring to a location in a text widget, you can append modifiers to indicate relative positioning. For example, given the position "1.0", the next position can be identified as "1.0+1c" (or "1.0+1char"). So, to highlight a single character at a given offset, make the start of the range the offset, and the end of the range one character greater.
Here's a quick hack that takes one or more "positions" and highlights that position on each line:
def highlight(text, tag, *positions):
last_line = int(text.index("end-1c").split(".")[0])
for linenumber in range(1, last_line+1):
line = text.get("%s.0" % linenumber, "%s.0 lineend-1c" % linenumber)
line_length = len(line)
for pos in positions:
if pos <= line_length:
start = "%s.%s" % (linenumber, pos)
end = start + "+1c"
text.tag_add(tag, start, end)
usage:
text = Text(...)
text.tag_configure("highlight", ...)
...
highlight(text, "highlight", 0, 20, 40)
:sp horizontally splits the current window in two.
How can I set the height of the new window?
I am imagining something like:
:sp --width=30
By preceding the :split with a number, you can set the height:
" Split a 10-line height window above:
:10split
" Or to open the new viewport below the current
:below 10split
From :help split:
:[N]sp[lit] [++opt] [+cmd] :sp :split
Split current window in two. The result is two viewports on
the same file. Make new window N high (default is to use half
the height of the current window)
I am using vim (terminal/console vim NOT gui vim) with NERDTree and NERDTreeTabs.
As you may have guessed I like to use vim's tab functionality to keep track of multiple open files.
I never really liked how the tabs would start at the very "beginning" of the tabline (there would be tabs on top of the NERDTree window). I wanted to have the tabs start from the END of the NERDTree window (i.e. the right edge), resembling an IDE. So I defined my own tabline like so:
" Globals
" NERDTree width
let g:ntw = 25
set showtabline=2 " Always show tabs
function! Tabline(width)
let s = '%#String#'. repeat(' ', a:width).'|'
for i in range(tabpagenr('$'))
let tab = i + 1
let bufnr = tabpagebuflist(tab)[tabpagewinnr(tab) - 1]
let bufname = bufname(bufnr)
let s .= '%' . tab . 'T'
let s .= (tab == tabpagenr() ? '%#TabLineSel#' : '%#TabLine#')
let s .= ' '.(bufname != '' ? fnamemodify(bufname, ':t') : 'New ').' '
if getbufvar(bufnr, "&mod") " If buf is modified
let s .= '+ '
endif
endfor
let s .= '%#TabLineFill#'
return s
endfunction
set tabline=%!Tabline(g:ntw)
let g:NERDTreeWinSize = g:ntw
Basically all I am doing is inserting blank spaces into the tabline before any tabs start. The width of the blank spaces would match the width of NERDTree. Now the problem is when I resize the NERDTree window. Obviously, the tab line's extra spacing does not resize itself automatically, resulting in an ugly mismatch.
I was thinking I could find out a way to execute 'set tabline=%!Tabline(g:ntw)" where g:btw is the current width of NERDTree whenever the NERDTree window is resized. But I am unable to find out a way to do this.
As a side note, since I am using NERDTreeTabs plugin, you can assume that the NERDTree window will ALWAYS exist. You can also assume that the NERDTree window will always be on the left.
So then my questions are:
1) Is there a more elegant way of getting this done?
2) If no to 1), how could I achieve what I am trying to do? (example code please)
Thanks in advance!
Assuming that the NERD_Tree window is always at the left, occupying the full height, its window number is 1. You can then query the current width via winwidth(1) instead of hard-coding it in your g:ntw variable.
Recently I was in need of a faster way to format similar code lines according a common character (usually =). For example, I want to format this:
myVar = getMyVar();
myLongerVar = getMyLongerVar();
myYetLongerVar = getMyYetLongerVar();
into that:
myVar = getMyVar();
myLongerVar = getMyLongerVar();
myYetLongerVar = getMyYetLongerVar();
then I wrote the following mappings:
" query used to find the common character. In this case i'm setting it to "find the ="
let g:defformatquery = "f="
" set current line as having the longer size till the common character
nnoremap <Leader>gm 0
\:execute "normal " . g:defformatquery<CR>
\:let b:epos = getpos(".")[2]<CR>
" format current line according to the position acquired above
nnoremap <Leader>g= 0
\:execute "normal " . g:defformatquery<CR>hvgeld
\:execute "normal " . (b:epos - getpos(".")[2]) . "i "<CR>
To use them I have to perform these steps (assuming , is my <Leader>):
position the cursor in the line with the longer text before the = sign (the third line in the example provided, myYetLongerVar)
press: ,gm
for each line I want to format, position the cursor there and press ,g=
Although this works, the process is kinda slow.
I want to create a function that would format the entire selected area at once. Then I could just create one map for the function.
Any ideas?
You should try the Align plugin.
For example, to align some selected lines (selected with v or CTRL-v) according to the = sign, you just type:
:Align =
Or to align from line 34 to 39:
:34,39Align =