codekingpro/portable-devtools

1" Vim indent file2" Language: nginx.conf3" Maintainer: Chris Aumann <me@chr4.org>4" Last Change:  2022 Dec 015 6" Only load this indent file when no other was loaded.7if exists('b:did_indent')8  finish9endif10let b:did_indent = 111 12setlocal indentexpr=GetNginxIndent()13 14setlocal indentkeys=0{,0},0#,!^F,o,O15 16let b:undo_indent = 'setl inde< indk<'17 18" Only define the function once.19if exists('*GetNginxIndent')20  finish21endif22 23function GetNginxIndent() abort24  let plnum = s:PrevNotAsBlank(v:lnum - 1)25 26  " Hit the start of the file, use zero indent.27  if plnum == 028    return 029  endif30 31  let ind = indent(plnum)32 33  " Add a 'shiftwidth' after '{'34  if s:AsEndWith(getline(plnum), '{')35    let ind = ind + shiftwidth()36  end37 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  endif43 44  let pplnum = s:PrevNotAsBlank(plnum - 1)45 46  if s:IsLineContinuation(plnum)47    if !s:IsLineContinuation(pplnum)48      let ind = ind + shiftwidth()49    end50  else51    if s:IsLineContinuation(pplnum)52      let ind = ind - shiftwidth()53    end54  endif55 56  return ind57endfunction58 59" Find the first line at or above {lnum} that is non-blank and not a comment.60function s:PrevNotAsBlank(lnum) abort61  let lnum = prevnonblank(a:lnum)62  while lnum > 063    if getline(lnum) !~ '^\s*#'64      break65    endif66    let lnum = prevnonblank(lnum - 1)67  endwhile68  return lnum69endfunction70 71" Check whether {line} ends with {pat}, ignoring trailing comments.72function s:AsEndWith(line, pat) abort73  return a:line =~ a:pat . '\m\s*\%(#.*\)\?$'74endfunction75 76function s:IsLineContinuation(lnum) abort77  return a:lnum > 0 && !s:AsEndWith(getline(a:lnum), '[;{}]')78endfunction79