mirror of
https://github.com/neovim/neovim.git
synced 2024-12-20 11:15:14 -07:00
102 lines
2.5 KiB
VimL
102 lines
2.5 KiB
VimL
" Vim indent file
|
|
" Language: Tcl
|
|
" Latest Update: Chris Heithoff <chrisheithoff@gmail.com>
|
|
" Previous Maintainer: Nikolai Weibull <now@bitwi.se>
|
|
" Latest Revision: 2018-12-05
|
|
|
|
if exists("b:did_indent")
|
|
finish
|
|
endif
|
|
let b:did_indent = 1
|
|
|
|
setlocal indentexpr=GetTclIndent()
|
|
setlocal indentkeys=0{,0},!^F,o,O,0]
|
|
setlocal nosmartindent
|
|
|
|
if exists("*GetTclIndent")
|
|
finish
|
|
endif
|
|
|
|
function s:prevnonblanknoncomment(lnum)
|
|
let lnum = prevnonblank(a:lnum)
|
|
while lnum > 0
|
|
let line = getline(lnum)
|
|
if line !~ '^\s*\(#\|$\)'
|
|
break
|
|
endif
|
|
let lnum = prevnonblank(lnum - 1)
|
|
endwhile
|
|
return lnum
|
|
endfunction
|
|
|
|
function s:ends_with_backslash(lnum)
|
|
let line = getline(a:lnum)
|
|
if line =~ '\\\s*$'
|
|
return 1
|
|
else
|
|
return 0
|
|
endif
|
|
endfunction
|
|
|
|
function s:count_braces(lnum, count_open)
|
|
let n_open = 0
|
|
let n_close = 0
|
|
let line = getline(a:lnum)
|
|
let pattern = '[{}]'
|
|
let i = match(line, pattern)
|
|
while i != -1
|
|
if synIDattr(synID(a:lnum, i + 1, 0), 'name') !~ 'tcl\%(Comment\|String\)'
|
|
if line[i] == '{'
|
|
let n_open += 1
|
|
elseif line[i] == '}'
|
|
if n_open > 0
|
|
let n_open -= 1
|
|
else
|
|
let n_close += 1
|
|
endif
|
|
endif
|
|
endif
|
|
let i = match(line, pattern, i + 1)
|
|
endwhile
|
|
return a:count_open ? n_open : n_close
|
|
endfunction
|
|
|
|
function GetTclIndent()
|
|
let line = getline(v:lnum)
|
|
|
|
" Get the line number of the previous non-blank or non-comment line.
|
|
let pnum = s:prevnonblanknoncomment(v:lnum - 1)
|
|
if pnum == 0
|
|
return 0
|
|
endif
|
|
|
|
" ..and the previous line before the previous line.
|
|
let pnum2 = s:prevnonblanknoncomment(pnum-1)
|
|
|
|
" Default indentation is to preserve the previous indentation.
|
|
let ind = indent(pnum)
|
|
|
|
" ...but if previous line introduces an open brace, then increase current line's indentation
|
|
if s:count_braces(pnum, 1) > 0
|
|
let ind += shiftwidth()
|
|
else
|
|
" Look for backslash line continuation on the previous two lines.
|
|
let slash1 = s:ends_with_backslash(pnum)
|
|
let slash2 = s:ends_with_backslash(pnum2)
|
|
if slash1 && !slash2
|
|
" If the previous line begins a line continuation.
|
|
let ind += shiftwidth()
|
|
elseif !slash1 && slash2
|
|
" If two lines ago was the end of a line continuation group of lines.
|
|
let ind -= shiftwidth()
|
|
endif
|
|
endif
|
|
|
|
" If the current line begins with a closed brace, then decrease the indentation by one.
|
|
if line =~ '^\s*}'
|
|
let ind -= shiftwidth()
|
|
endif
|
|
|
|
return ind
|
|
endfunction
|