73 lines
1.6 KiB
VimL
73 lines
1.6 KiB
VimL
" Only load this indent file when no other was loaded.
|
|
if exists('b:did_indent')
|
|
finish
|
|
endif
|
|
let b:did_indent = 1
|
|
|
|
setlocal indentexpr=GetNginxIndent()
|
|
|
|
setlocal indentkeys=0{,0},0#,!^F,o,O
|
|
|
|
let b:undo_indent = 'setl inde< indk<'
|
|
|
|
" Only define the function once.
|
|
if exists('*GetNginxIndent')
|
|
finish
|
|
endif
|
|
|
|
function GetNginxIndent() abort
|
|
let plnum = s:PrevNotAsBlank(v:lnum - 1)
|
|
|
|
" Hit the start of the file, use zero indent.
|
|
if plnum == 0
|
|
return 0
|
|
endif
|
|
|
|
let ind = indent(plnum)
|
|
|
|
" Add a 'shiftwidth' after '{'
|
|
if s:AsEndWith(getline(plnum), '{')
|
|
let ind = ind + shiftwidth()
|
|
end
|
|
|
|
" Subtract a 'shiftwidth' on '}'
|
|
" This is the part that requires 'indentkeys'.
|
|
if getline(v:lnum) =~ '^\s*}'
|
|
let ind = ind - shiftwidth()
|
|
endif
|
|
|
|
let pplnum = s:PrevNotAsBlank(plnum - 1)
|
|
|
|
if s:IsLineContinuation(plnum)
|
|
if !s:IsLineContinuation(pplnum)
|
|
let ind = ind + shiftwidth()
|
|
end
|
|
else
|
|
if s:IsLineContinuation(pplnum)
|
|
let ind = ind - shiftwidth()
|
|
end
|
|
endif
|
|
|
|
return ind
|
|
endfunction
|
|
|
|
" Find the first line at or above {lnum} that is non-blank and not a comment.
|
|
function s:PrevNotAsBlank(lnum) abort
|
|
let lnum = prevnonblank(a:lnum)
|
|
while lnum > 0
|
|
if getline(lnum) !~ '^\s*#'
|
|
break
|
|
endif
|
|
let lnum = prevnonblank(lnum - 1)
|
|
endwhile
|
|
return lnum
|
|
endfunction
|
|
|
|
" Check whether {line} ends with {pat}, ignoring trailing comments.
|
|
function s:AsEndWith(line, pat) abort
|
|
return a:line =~ a:pat . '\m\s*\%(#.*\)\?$'
|
|
endfunction
|
|
|
|
function s:IsLineContinuation(lnum) abort
|
|
return a:lnum > 0 && !s:AsEndWith(getline(a:lnum), '[;{}]')
|
|
endfunction
|