Question

I ve just created my first VIM script, I wrote it in Python. It s a simple script to switch color schemes from a directory (/vim/etc/colors). I would like to know how to send a notification after the color scheme changed with the name of the selected color scheme to the vim statusline .

rson gave an answer to my question, here is an updated (and debugged) version of the script for who is interested (works fine as far as I can test)

Implemented (kind of) the suggestions of AI and Caleb, thanks!:

" toggleColorScheme 0.9 (l) 2009 by Jasper Poppe <jpoppe@ebay.com>

" cycle through colorschemes with F8 and Shift+F8
nnoremap <silent><F8> :call ToggleColorScheme("1")<CR>
nnoremap <silent><s-F8> :call ToggleColorScheme("-1")<CR>

" set directory with color schemes to cycle through
let g:Toggle_Color_Scheme_Path = "/etc/vim/colors"


function! ToggleColorScheme(paramater)
python << endpython
import vim
import os

paramater = (vim.eval( a:paramater ))
scheme_path = vim.eval( g:Toggle_Color_Scheme_Path )

colorschemes = [color.split( . )[0] for color in os.listdir(scheme_path) if color.endswith( .vim )]
colorschemes.sort()

if not vars().has_key( position ):
    start_scheme = vim.eval( g:colors_name ) +  .vim 
    if start_scheme in colorschemes:
        position = colorschemes.index(start_scheme)
    else:
        position = 0

position += int(paramater)
position %= len(colorschemes)

vim.command( colorscheme %s  % colorschemes[position])
vim.command( redraw | echo "%s"  % colorschemes[position])
vim.command( return 1 )
endpython
endfunction

Answer 1

vim.command( redraw | echo "%s" % colorschemes[position])

From :help echo:

A later redraw may make the message disappear again. And since Vim mostly postpones redrawing until it s finished with a sequence of commands this happens quite often. To avoid that a command from before the ":echo" causes a redraw afterwards (redraws are often postponed until you type something), force a redraw with the |:redraw| command. Example:

:new | redraw | echo "there is a new window"

Answer 2

Since you are updating the script here,

Instead of

if argument ==  next :
    position += 1
    if position == len(colorschemes) - 1:
        position = 0
elif argument ==  prev :
    position -= 1
    if position == -1:
        position = len(colorschemes) - 1

Perhaps

scroll[ next ] = +1
scroll[ prev ] = -1
position += scroll[argument]
position = position % len(colorschemes)

友情链接