codekingpro/portable-devtools

1" Vim indent file2" Language:		JSON3" Maintainer:		Eli Parra <eli@elzr.com> https://github.com/elzr/vim-json4" Last Change:          2020 Aug 305"   https://github.com/jakar/vim-json/commit/20b650e22aa750c4ab6a66aa646bdd95d7cd548a#diff-e81fc111b2052e306d126bd9989f7b7c6"                       2022 Sep 07: b:undo_indent added by Doug Kearns7" Original Author:	Rogerz Zhang <rogerz.zhang at gmail.com> http://github.com/rogerz/vim-json8" Acknowledgement:      Based off of vim-javascript maintained by Darrick Wiebe 9"                       http://www.vim.org/scripts/script.php?script_id=276510 11" 0. Initialization {{{112" =================13 14" Only load this indent file when no other was loaded.15if exists("b:did_indent")16  finish17endif18let b:did_indent = 119 20setlocal nosmartindent21 22" Now, set up our indentation expression and keys that trigger it.23setlocal indentexpr=GetJSONIndent(v:lnum)24setlocal indentkeys=0{,0},0),0[,0],!^F,o,O,e25 26let b:undo_indent = "setl inde< indk< si<"27 28" Only define the function once.29if exists("*GetJSONIndent")30  finish31endif32 33let s:cpo_save = &cpo34set cpo&vim35 36" 1. Variables {{{137" ============38 39let s:line_term = '\s*\%(\%(\/\/\).*\)\=$'40" Regex that defines blocks.41let s:block_regex = '\%({\)\s*\%(|\%([*@]\=\h\w*,\=\s*\)\%(,\s*[*@]\=\h\w*\)*|\)\=' . s:line_term42 43" 2. Auxiliary Functions {{{144" ======================45 46" Check if the character at lnum:col is inside a string.47function s:IsInString(lnum, col)48  return synIDattr(synID(a:lnum, a:col, 1), 'name') == 'jsonString'49endfunction50 51" Find line above 'lnum' that isn't empty, or in a string.52function s:PrevNonBlankNonString(lnum)53  let lnum = prevnonblank(a:lnum)54  while lnum > 055    " If the line isn't empty or in a string, end search.56    let line = getline(lnum)57    if !(s:IsInString(lnum, 1) && s:IsInString(lnum, strlen(line)))58      break59    endif60    let lnum = prevnonblank(lnum - 1)61  endwhile62  return lnum63endfunction64 65" Check if line 'lnum' has more opening brackets than closing ones.66function s:LineHasOpeningBrackets(lnum)67  let open_0 = 068  let open_2 = 069  let open_4 = 070  let line = getline(a:lnum)71  let pos = match(line, '[][(){}]', 0)72  while pos != -173    let idx = stridx('(){}[]', line[pos])74    if idx % 2 == 075      let open_{idx} = open_{idx} + 176    else77      let open_{idx - 1} = open_{idx - 1} - 178    endif79    let pos = match(line, '[][(){}]', pos + 1)80  endwhile81  return (open_0 > 0) . (open_2 > 0) . (open_4 > 0)82endfunction83 84function s:Match(lnum, regex)85  let col = match(getline(a:lnum), a:regex) + 186  return col > 0 && !s:IsInString(a:lnum, col) ? col : 087endfunction88 89" 3. GetJSONIndent Function {{{190" =========================91 92function GetJSONIndent(...)93  " 3.1. Setup {{{294  " ----------95  " For the current line, use the first argument if given, else v:lnum96  let clnum = a:0 ? a:1 : v:lnum97 98  " Set up variables for restoring position in file.  Could use clnum here.99  let vcol = col('.')100 101  " 3.2. Work on the current line {{{2102  " -----------------------------103 104  " Get the current line.105  let line = getline(clnum)106  let ind = -1107 108  " If we got a closing bracket on an empty line, find its match and indent109  " according to it.110  let col = matchend(line, '^\s*[]}]')111 112  if col > 0 && !s:IsInString(clnum, col)113    call cursor(clnum, col)114    let bs = strpart('{}[]', stridx('}]', line[col - 1]) * 2, 2)115 116    let pairstart = escape(bs[0], '[')117    let pairend = escape(bs[1], ']')118    let pairline = searchpair(pairstart, '', pairend, 'bW')119 120    if pairline > 0 121      let ind = indent(pairline)122    else123      let ind = virtcol('.') - 1124    endif125 126    return ind127  endif128 129  " If we are in a multi-line string, don't do anything to it.130  if s:IsInString(clnum, matchend(line, '^\s*') + 1)131    return indent('.')132  endif133 134  " 3.3. Work on the previous line. {{{2135  " -------------------------------136 137  let lnum = prevnonblank(clnum - 1)138 139  if lnum == 0140    return 0141  endif142 143  " Set up variables for current line.144  let line = getline(lnum)145  let ind = indent(lnum)146 147  " If the previous line ended with a block opening, add a level of indent.148  " if s:Match(lnum, s:block_regex)149    " return indent(lnum) + shiftwidth()150  " endif151 152  " If the previous line contained an opening bracket, and we are still in it,153  " add indent depending on the bracket type.154  if line =~ '[[({]'155    let counts = s:LineHasOpeningBrackets(lnum)156    if counts[0] == '1' || counts[1] == '1' || counts[2] == '1'157      return ind + shiftwidth()158    else159      call cursor(clnum, vcol)160    end161  endif162 163  " }}}2164 165  return ind166endfunction167 168" }}}1169 170let &cpo = s:cpo_save171unlet s:cpo_save172 173" vim:set sw=2 sts=2 ts=8 noet:174