nginx.vim (1737B)
1 " Vim indent file 2 " Language: nginx.conf 3 " Maintainer: Chris Aumann <me@chr4.org> 4 " Last Change: 2022 Dec 01 5 6 " Only load this indent file when no other was loaded. 7 if exists('b:did_indent') 8 finish 9 endif 10 let b:did_indent = 1 11 12 setlocal indentexpr=GetNginxIndent() 13 14 setlocal indentkeys=0{,0},0#,!^F,o,O 15 16 let b:undo_indent = 'setl inde< indk<' 17 18 " Only define the function once. 19 if exists('*GetNginxIndent') 20 finish 21 endif 22 23 function GetNginxIndent() abort 24 let plnum = s:PrevNotAsBlank(v:lnum - 1) 25 26 " Hit the start of the file, use zero indent. 27 if plnum == 0 28 return 0 29 endif 30 31 let ind = indent(plnum) 32 33 " Add a 'shiftwidth' after '{' 34 if s:AsEndWith(getline(plnum), '{') 35 let ind = ind + shiftwidth() 36 end 37 38 " Subtract a 'shiftwidth' on '}' 39 " This is the part that requires 'indentkeys'. 40 if getline(v:lnum) =~ '^\s*}' 41 let ind = ind - shiftwidth() 42 endif 43 44 let pplnum = s:PrevNotAsBlank(plnum - 1) 45 46 if s:IsLineContinuation(plnum) 47 if !s:IsLineContinuation(pplnum) 48 let ind = ind + shiftwidth() 49 end 50 else 51 if s:IsLineContinuation(pplnum) 52 let ind = ind - shiftwidth() 53 end 54 endif 55 56 return ind 57 endfunction 58 59 " Find the first line at or above {lnum} that is non-blank and not a comment. 60 function s:PrevNotAsBlank(lnum) abort 61 let lnum = prevnonblank(a:lnum) 62 while lnum > 0 63 if getline(lnum) !~ '^\s*#' 64 break 65 endif 66 let lnum = prevnonblank(lnum - 1) 67 endwhile 68 return lnum 69 endfunction 70 71 " Check whether {line} ends with {pat}, ignoring trailing comments. 72 function s:AsEndWith(line, pat) abort 73 return a:line =~ a:pat . '\m\s*\%(#.*\)\?$' 74 endfunction 75 76 function s:IsLineContinuation(lnum) abort 77 return a:lnum > 0 && !s:AsEndWith(getline(a:lnum), '[;{}]') 78 endfunction