add a color line behind line number
stardiviner
here is the example:
http://blog.nguyenvq.com/2011/06/29/some-custom-emacs-keybindings-for-latex-to-assist-in-the-writing-process/
--
Blog: http://stardiviner.tumblr.com/
Homepage: http://stardiviner.dyndns-blog.com
Love Linux -> love code -> like this.
Ben Fritz
On Jul 12, 8:38 am, stardiviner <numbch...@gmail.com> wrote:
> how to add a colored line behind line number.
>
Are you asking for every other line to be highlighted in a different
color as shown in the screen shot?
You can't do it exactly like the screenshot, and it will slow down
performance greatly, but you might be able to use a bunch of
matchadd() calls, to set up matches for all text on each line.
The line number column will not be highlighted, and only text within
the line will be highlighted.
There is no way to highlight entire lines, including empty space and
line numbers, alternating between two different backgrounds. At least,
not without modifying Vim's C code and recompiling.
Benjamin R. Haskell
> On Jul 12, 8:38 am, stardiviner wrote:
>> how to add a colored line behind line number.
>> here is the example:http://blog.nguyenvq.com/2011/06/29/some-custom-emacs-keybindings-for...
>>
>
> Are you asking for every other line to be highlighted in a different
> color as shown in the screen shot?
I assumed the request was for the red, vertical bar after (= "behind")
the line number.
I couldn't see a straightforward way to do it. My first attempt was to
subvert the 'signs' columns, but I couldn't figure out a nice way to
activate the column without actually adding signs. And after doing so I
discovered that it appears to the left of the numbers anyway.
--
Best,
Ben H
Bee
highlight LineNr NONE ctermfg=DarkGreen guifg=Cyan
I use green for terminal vim and cyan for gui vim.
-Bill
Christian Brabandt
You could possibly hack something like this:
1) Add a space at the beginning:
:%s/^/ /
2) Match the first column
call matchadd('Conceal', '^ ')
3) change syntax highlighting for the conceal highlighting group
hi Conceal ctermbg=Red ctermfg=Red
You need to adjust the color to your taste and depending on whether
you use terminal vim or gvim, you need to use cterm(bg,fg) (for the former)
or gui(bg,fg) for the latter.
regards,
Christian
Christian Brabandt
> Are you asking for every other line to be highlighted in a different
> color as shown in the screen shot?
>
> You can't do it exactly like the screenshot, and it will slow down
> performance greatly, but you might be able to use a bunch of
> matchadd() calls, to set up matches for all text on each line.
I tried once using several
:syn match Evenl /.*/ nextgroup=Oddl
:syn match Oddl /.*/ nextgroup=Evenl
:hi Evenl ctermbg=Red ctermfg=Black
:hi Oddl ctermbg=Yellow ctermfg=Black
Unfortunately, this did not work. I am not sure why. My understanding
of the syntax highlighting was, that the nextgroup parameter should
force matching the next group. But somehow it ends always matching the
same group. Not sure if this is a bug or my understanding is wrong.
> There is no way to highlight entire lines, including empty space and
> line numbers, alternating between two different backgrounds. At least,
> not without modifying Vim's C code and recompiling.
> There is no way to highlight entire lines, including empty space and
> line numbers, alternating between two different backgrounds. At least,
> not without modifying Vim's C code and recompiling.
That is not entirely true. If you set up signs, you can highlight
entire lines. I have made a simply plugin that makes that possible:
http://www.vim.org/scripts/script.php?script_id=2998
regards,
Christian
Ben Fritz
On Jul 13, 1:11 am, "Christian Brabandt" <cbli...@256bit.org> wrote:
> On Tue, July 12, 2011 11:33 pm, Ben Fritz wrote:
> > Are you asking for every other line to be highlighted in a different
> > color as shown in the screen shot?
>
> > You can't do it exactly like the screenshot, and it will slow down
> > performance greatly, but you might be able to use a bunch of
> > matchadd() calls, to set up matches for all text on each line.
>
> I tried once using several
> :syn match Evenl /.*/ nextgroup=Oddl
> :syn match Oddl /.*/ nextgroup=Evenl
> :hi Evenl ctermbg=Red ctermfg=Black
> :hi Oddl ctermbg=Yellow ctermfg=Black
>
> Unfortunately, this did not work. I am not sure why. My understanding
> of the syntax highlighting was, that the nextgroup parameter should
> force matching the next group. But somehow it ends always matching the
> same group. Not sure if this is a bug or my understanding is wrong.
>
So, Oddl matches first, tries matching Evenl on the line ending (which
fails because line endings aren't matched with '.'), and therefore
Oddl matches again on the next line. Possibly just using ^.*\n as the
pattern would fix it, but this will probably not work well together
with existing syntax highlights. That's why I suggested matchadd()
> > There is no way to highlight entire lines, including empty space and
> > line numbers, alternating between two different backgrounds. At least,
> > not without modifying Vim's C code and recompiling.
> > There is no way to highlight entire lines, including empty space and
> > line numbers, alternating between two different backgrounds. At least,
> > not without modifying Vim's C code and recompiling.
>
> That is not entirely true. If you set up signs, you can highlight
> entire lines. I have made a simply plugin that makes that possible:http://www.vim.org/scripts/script.php?script_id=2998
>
However, you still don't get the alternating highlight of the line
number column, the sign column will then always be displayed, and the
sign column is only 2 characters wide always so you cannot just use it
as a replacement for the line number column. Also, 'wrap' and
'showbreak' interact in unexpected (but not incorrect) ways.
So, something like this can alternate line colors, coloring all even
lines in blue and falling back to Normal highlight for odd lines (very
gaudy, probably not recommended with colors as-is) in an existing
buffer:
:sign define EvenL linehl=EvenLbg
:hi EvenLbg guibg=blue
:g#^#if line('.')%2==0 | exec 'sign place '.line('.').'
line='.line('.').' name=EvenL buffer='.bufnr("%") | endif
:nohls
To keep the highlight up-to-date, you'd need to re-apply them after
every change. So far I've come up with this:
sign define EvenL linehl=EvenLbg
hi EvenLbg guibg=blue
augroup ALT_LINES
au!
autocmd BufWinEnter,CursorMoved,CursorMovedI,CursorHold,CursorHoldI
*
\ if !exists('b:my_changedtick') || b:my_changedtick !=
b:changedtick |
\ let b:my_changedtick = b:changedtick |
\ let pos_sav = getpos('.') |
\ for id in range(2,line('$'),2) | exec 'sign unplace '.id.'
buffer='.bufnr('%') | endfor |
\ keepjumps exec 'g#^#if line(".")%2==0 | exec "sign place
".line(".")." line=".line(".")." name=EvenL buffer=".bufnr("%") |
endif' |
\ nohls |
\ call setpos('.',pos_sav) |
\ endif
augroup END
The for loop in there is an attempt to allow multiple buffers
simultaneously. It's faster to do :sign unplace * but that will not
work for multiple buffers.
It's also really slow for big files--unbearably slow for really big
ones, since it updates on every change--and the screen flashes on
every change for small files. This could be improved by removing the
CursorMoved autocmds at the sacrifice of not having completely correct
highlight sometimes, but could still be very annoying.
If I ever start using something like this, I'd probably tweak it to
only fire on buffers with empty buftype, remove the CursorMoved and
CursorMovedI events, and repalce them with InsertLeave.
Christian Brabandt
> On Jul 13, 1:11�am, "Christian Brabandt" <cbli...@256bit.org> wrote:
>> On Tue, July 12, 2011 11:33 pm, Ben Fritz wrote:
>> > Are you asking for every other line to be highlighted in a different
>> > color as shown in the screen shot?
>>
>> > You can't do it exactly like the screenshot, and it will slow down
>> > performance greatly, but you might be able to use a bunch of
>> > matchadd() calls, to set up matches for all text on each line.
>>
>> I tried once using several
>> :syn match Evenl /.*/ nextgroup=Oddl
>> :syn match Oddl �/.*/ nextgroup=Evenl
>> :hi Evenl ctermbg=Red ctermfg=Black
>> :hi Oddl �ctermbg=Yellow ctermfg=Black
>>
>> Unfortunately, this did not work. I am not sure why. My understanding
>> of the syntax highlighting was, that the nextgroup parameter should
>> force matching the next group. But somehow it ends always matching the
>> same group. Not sure if this is a bug or my understanding is wrong.
>>
>
> I think it is because you aren't including the newline in the match.
> So, Oddl matches first, tries matching Evenl on the line ending (which
> fails because line endings aren't matched with '.'), and therefore
> Oddl matches again on the next line. Possibly just using ^.*\n as the
> pattern would fix it, but this will probably not work well together
> with existing syntax highlights. That's why I suggested matchadd()
Yes, this works. Thanks for pointing me to the obvious ;)
regards,
Christian
Ben Fritz
to C highlighting, for example? I imagine it would be very easy to get
into a tangled mess of contains and containedin tweaks, so that it
would be difficult to apply generically to all syntaxes. But I haven't
ever tried, so maybe I'm just being paranoid.
Christian Brabandt
It works, but overrides your existing syntax rules (I guess because of
:h syn-priority). And it get's empty lines wrong.
Mit freundlichen Gr��en
Christian