triggers - vim 进入可视模式时运行命令

Question

我使用一个小脚本来触发插入模式以更改行号颜色:

function! CursorLineNrColorInsert(mode)
    " Insert mode: blue
    if a:mode == "i"
        highlight CursorLineNr ctermfg=4
        highlight CursorLineNr guifg=#268bd2

    " Replace mode: red
    elseif a:mode == "r"
        highlight CursorLineNr ctermfg=1
        highlight CursorLineNr guifg=#dc322f

    else
        highlight CursorLineNr ctermfg=0
        highlight CursorLineNr guifg=#073642

    endif
endfunction

autocmd InsertEnter * call CursorLineNrColorInsert(v:insertmode)
autocmd InsertLeave * highlight CursorLineNr ctermfg=0
autocmd InsertLeave * highlight CursorLineNr guifg=#073642

这很好用并且改变了我的行号 即时当我进入任何插入模式并在正常模式下恢复为原始颜色时。

我想对视觉模式做同样的事情:

function! CursorLineNrColorVisual(mode)
    " Visual mode: orange
    if mode()=~#"^[vV\<C-v>]"
        highlight CursorLineNr ctermfg=9
        highlight CursorLineNr guifg=#cb4b16

    else
        highlight CursorLineNr ctermfg=0
        highlight CursorLineNr guifg=#073642

    endif
endfunction

autocmd CursorMoved * call CursorLineNrColorVisual(mode())

基本上可以，但是 不是立即因为该函数是在 CursorMoved 上触发的.我怎么能开火 CursorLineNrColorVisual() 即时一旦我激活任何视觉模式？

Answer 1

在 :help 待了一段时间后我以以下设置结束:

" Colorize line numbers in insert and visual modes
" ------------------------------------------------
function! SetCursorLineNrColorInsert(mode)
    " Insert mode: blue
    if a:mode == "i"
        highlight CursorLineNr ctermfg=4 guifg=#268bd2

    " Replace mode: red
    elseif a:mode == "r"
        highlight CursorLineNr ctermfg=1 guifg=#dc322f

    endif
endfunction


function! SetCursorLineNrColorVisual()
    set updatetime=0

    " Visual mode: orange
    highlight CursorLineNr cterm=none ctermfg=9 guifg=#cb4b16
endfunction


function! ResetCursorLineNrColor()
    set updatetime=4000
    highlight CursorLineNr cterm=none ctermfg=0 guifg=#073642
endfunction


vnoremap <silent> <expr> <SID>SetCursorLineNrColorVisual SetCursorLineNrColorVisual()
nnoremap <silent> <script> v v<SID>SetCursorLineNrColorVisual
nnoremap <silent> <script> V V<SID>SetCursorLineNrColorVisual
nnoremap <silent> <script> <C-v> <C-v><SID>SetCursorLineNrColorVisual


augroup CursorLineNrColorSwap
    autocmd!
    autocmd InsertEnter * call SetCursorLineNrColorInsert(v:insertmode)
    autocmd InsertLeave * call ResetCursorLineNrColor()
    autocmd CursorHold * call ResetCursorLineNrColor()
augroup END

为了在离开可视模式后恢复行号的颜色，我必须执行以下步骤:

重新映射相关键绑定(bind)以调用“输入视觉功能”

进入视觉模式时，功能设置 updatetime=0对于 CursorHold事件

通过 autocmd CursorHold 调用“离开视觉功能”

离开视觉模式时，功能会重置 updatetime=4000对于 CursorHold事件