<p>它至少从V7.0开始就包含在Vim中:</p>
<p>请参阅以下来自<code>usr/share/vim/vim80/indent/python.vim</code>(第74行)<a href="https://github.com/vim/vim/blob/master/runtime/indent/python.vim" rel="nofollow noreferrer">https://github.com/vim/vim/blob/master/runtime/indent/python.vim</a>的片段</p>
<pre><code>function GetPythonIndent(lnum)
...
" When inside parenthesis: If at the first line below the parenthesis add
" two 'shiftwidth', otherwise same as previous line.
" i = (a
" + b
" + c)
call cursor(a:lnum, 1)
let p = searchpair('(\|{\|\[', '', ')\|}\|\]', 'bW',
\ "line('.') < " . (a:lnum - s:maxoff) . " ? dummy :"
\ . " synIDattr(synID(line('.'), col('.'), 1), 'name')"
\ . " =~ '\\(Comment\\|Todo\\|String\\)$'")
if p > 0
if p == plnum
" When the start is inside parenthesis, only indent one 'shiftwidth'.
let pp = searchpair('(\|{\|\[', '', ')\|}\|\]', 'bW',
\ "line('.') < " . (a:lnum - s:maxoff) . " ? dummy :"
\ . " synIDattr(synID(line('.'), col('.'), 1), 'name')"
\ . " =~ '\\(Comment\\|Todo\\|String\\)$'")
if pp > 0
return indent(plnum) + (exists("g:pyindent_nested_paren") ? eval(g:pyindent_nested_paren) : shiftwidth())
endif
return indent(plnum) + (exists("g:pyindent_open_paren") ? eval(g:pyindent_open_paren) : (shiftwidth() * 2))
endif
if plnumstart == p
return indent(plnum)
endif
return plindent
endif
...
</code></pre>