akiyosi / empty-prompt.vim

Vim plugin to add mappings only when shell prompt is empty

empty-prompt.vim

Vim plugin to add mappings only when shell prompt is empty

Requirements

• Vim 8.2 or higher

Usage

After installing this plugin, write this to your vimrc.

function! s:empty_prompt_mappings() abort
  " If current line is empty prompt ...
  
  " : works as <C-w>:
  call empty_prompt#map(#{lhs: ':', rhs: '<C-w>:'})
  " <Esc> works as <C-w>N
  call empty_prompt#map(#{lhs: '<Esc>', rhs: '<C-w>N'})
  
  " ... Add more mappings you like
  
endfunction
autocmd VimEnter * ++once call s:empty_prompt_mappings()

Customize

g:empty_prompt#pattern (default: &shell =~# 'sh$' ? '\$ $' : '>\s*$')

If current line on terminal window matches this pattern, fire given mapping.

Default is:

• current line ends with $ (&shell ends with sh (bash/zsh/...) like Unix environment)
• current line ends with > (otherwise, cmd.exe/powershell like Windows)

If the default value does not fit your environment, please consider customize the value.

API

empty_prompt#map({'lhs': <string>, 'rhs': <string> [, 'fallback': <string>]})

call empty_prompt#map(#{lhs: '<Esc>', rhs: "<C-w>N"})

This will be expanded to:

tnoremap <expr> {lhs} empty_prompt#is_empty() ? {rhs} : {fallback}

{fallback} is optional. Default {fallback} is same as {lhs}