Highlighting lines in vim excluding the row number - vim

I have set number in my vimrc, and I want to highlight rows using my mouse cursor without selecting the row numbers, kinda like how MacVim does it. I understand that MacVim is a native application and vim is bound by the conditions of the shell/terminal that it is in.
Is there a way to make this happen?
I want this:
Not this:

If your terminal supports the mouse (some don't). Adding the following to your vimrc will enable the mouse to be used for visual selections.
set mouse=a

Related

Vim/YCM - change warning highlight color

I'm using the YouCompleteMe plugin for vim on Mac OSX, primarily for C++. Right now it highlights both errors and warnings in a pinkish color, but I want warnings to be highlighted in a yellow-ish sort of color. I think I'm supposed to place these 3 lines somewhere:
highlight YcmWarningLine guibg=#ffffcc
highlight YcmWarningSign guibg=#ffffcc
highlight YcmWarningSection guibg=#ffffcc
Problem is I don't know which file to place them in. Where do I place them, and in general am I going about this the right way?
Highlight groups are global, only the syntax definitions that parse individual filetypes are specific. Syntax scripts canonically use :hi def to avoid overriding group definitions already customized by the user. Therefore, it is sufficient to place those commands into your ~/.vimrc, but after any :colorscheme command.
If you switch colorschemes on the fly (without restarting Vim), you'll notice that your custom highlightings will disappear. To keep them, you additionally need to reinstall them. Duplicate the :hi commands and prepend
:autocmd ColorScheme *
to them.
Those and other vim configuration settings should be added to your ~/.vimrc.

Vim: Only scroll the current line

I would like vim to scroll horizontally like nano does, by scrolling only the current line, not the whole screen.
I tried playing with nowrap and scrolloff settings, without success.
Here are some screenshots (with the cursor at the end of a long line) to explain myself.
Nano:
Vim (wrap):
Vim (nowrap):
Thanks!
No, Vim cannot do this, and I think it would be hard to implement this in a way that isn't inconsistent or confusing to the user. There would need to be an indicator (like with side scrolling) that only the current line is scrolled. Also in Vim, there are several commands (like j / k and i_CTRL-Y / i_CTRL-E) that refer to the same column in above / below lines. A partially scrolled view state would make it difficult to use those.
That said, you can sort-of achieve this with a hack: The foldtext of folded lines does not scroll horizontally. So if you fold each individual line (other than the current one) via a custom 'foldexpr', set the fold text to be the line's text, and automatically close all surrounding folds, you'll get this. However, as you'll lose syntax highlighting and "normal" folding, this is more for demonstration than an actual solution.

How do I make Vim get the number of rows of the terminal from which it starts?

My work setup has several terminals open, at different heights (e.g. number of lines). How do I make Vim obtain that number of lines so that it can set itself accordingly with set lines?
I'm on bash with iTerm2.
Update: If my .vimrc doesn't have a set lines statement, Vim should adjust itself by default.
Vim's default behaviour is to take up all of the available height. Or 24 lines if it can't get the information from the Terminal emulator according to :h lines.
set lines=52 works in MacVim/GVim but it's not really supposed to do anything useful in CLI Vim besides, eventually, changing the terminal's window height.
From my limited use of iTerm2 Vim behaves as it should. So do you want Vim to take less vertical space than what is available? Or more?
Though the reason didn't require it, in case someone comes across this while trying to figure out how to get the number of rows in a terminal at startup... the answer is to use "&lines".
Eg. to enforce laststatus to display unless you are working in a small window.
if &lines > 10 | set laststatus=2 | endif

Is it possible to not display a ~ for blank lines in Vim/Neovim?

Is it possible to not display a ~ for blank lines in Vim?
This confuses Mac Vim's scrollbar, and I quite don't like these tildes.
:hi NonText guifg=bg
That command should set the color of non text characters to be the same as the background color.
Vim 8.x:
You can now change the color just for the end of the buffer ~:
highlight EndOfBuffer ctermfg=black ctermbg=black
See changelog for Vim 8.x.
As jamessan said, you can’t disable them. The scrolling behavior isn’t specific to MacVim, either — it works the same way in the terminal and in gvim:
Instead of seeing this as a problem, what you should do is learn to see this as part of Vim’s flexibility. For example, you can use the zt command to scroll the current line to the top of the screen, regardless of where in the file it is. This can make it easier to write macros that do some work and then scroll back to where you were. The commands <C-E> and <C-Y> are made simpler because of this, as is the 'scrolloffset' option.
If you must, retrain your brain to think of Vim’s scrollbar as mapping to which line is on top, instead of which screenful is visible.
For NeoVim, you can set the fillchars value for eob to a space character and that will effectively hide it. (This might not work for plain Vim).
In Lua (Nvim 0.5+):
vim.wo.fillchars='eob: '
In VimScript:
set fillchars=eob:\
Note: Calling the above will override your fillchars value for other items as well (if set), so use this as a reference to set multiple values together:
set fillchars=eob:\ ,fold:\ ,vert:\│
Or use set fillchars+=... to append it your existing values.
You can't disable them, but you can change your colorscheme such that the NonText highlight group is colored the same as the Normal highlight group. However, this affects more than just the end of document tildes.
I doubt that it's actually "confusing" MacVim's scrollbar and if it is, then that's a bug in the patching that MacVim does.
The tilde ~ characters are meant to remind the user that those lines are not part of buffer content.
The above highlight trick will hide the ~ character, but it is still there. For some terminals, this may not even work. If you happen to be a Neovim user, you can use fillchars option to change the end of buffer symbol like this:
set fillchars=fold:\ ,vert:\│,eob:\ ,msgsep:‾
This will use space instead of ~ for end of buffer, effectively hiding the annoying ~.
You may also be interested in discussions here.

How to prevent Vim indenting wrapped text in parentheses

This has bugged me for a long time, and try as I might I can't find a way round it.
When I'm editing text (specifically latex, but that doesn't matter) files, I want it to auto-wrap at 80 columns. It does this, except if I happen to be in the middle of a parenthetical clause, it indents the text which is very annoying. For example, this works fine
Here is some text... over
two lines.
but this doesn't
Here is some text... (over
two
lines
If anyone can tell me how to turn this off (just for text/latex files) I'd be really grateful. Presumably it has something to do with the fact that this is desired behaviour in C, but I still can't figure out what's wrong.
:set nocindent
The other options do nothing, and the filetype detection doesn't change it.
There are three options you may need to turn off: set noai, set nosi, and setnocin (autoindent, smartindent, and cindent).
This may be related, when pasting from gui into terminal window, vim cannot distinguish paste modes, so to stop any odd things from occuring:
set paste
then paste text
set nopaste
I had similar issues trying to paste xml text, it would just keep indenting. :)
gvim, the gui version of vim, can detect paste modes.
You can have a look at the autoindent option :
autoindent - ai
Copy indent from current line when starting a new line (typing
in Insert mode or when using the "o" or "O" command). If you do not
type anything on the new line except and then type or
, the indent is deleted again. When autoindent is on,
formatting (with the "gq" command or when you reach 'textwidth' in
Insert mode) uses the indentation of the first line. When
'smartindent' or 'cindent' is on the indent is changed in specific
cases. The 'autoindent' option is reset when the 'paste' option is
set. {small difference from Vi: After the indent is deleted when
typing or , the cursor position when moving up or down is
after the deleted indent; Vi puts the cursor somewhere in the deleted
indent}.
From the official Vim documentation
filetype plugin indent on
This switches on three very clever
mechanisms:
Filetype detection. Whenever you start editing a file, Vim will try to
figure out what kind of file this
is. When you edit "main.c", Vim will
see the ".c" extension and
recognize this as a "c" filetype.
When you edit a file that starts with
"#!/bin/sh", Vim will recognize it as
a "sh" filetype. The filetype
detection is used for syntax
highlighting and the other two
items below. See |filetypes|.
Using filetype plugin files Many different filetypes are edited with
different options. For example,
when you edit a "c" file, it's very
useful to set the 'cindent' option to
automatically indent the lines. These
commonly useful option settings are
included with Vim in filetype plugins.
You can also add your own, see
|write-filetype-plugin|.
Using indent files When editing programs, the indent of a line can
often be computed automatically.
Vim comes with these indent rules for
a number of filetypes. See
|:filetype-indent-on| and
'indentexpr'.
:set noai
sets no auto indent tt may be smartindent though. Check out the doc and see if you can find something more
http://www.vim.org/htmldoc/indent.html

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