Update runtime files
diff --git a/runtime/indent/jsonc.vim b/runtime/indent/jsonc.vim
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+" Vim indent file
+" Language: JSONC (JSON with Comments)
+" Original Author: Izhak Jakov <izhak724@gmail.com>
+" Acknowledgement: Based off of vim-json maintained by Eli Parra <eli@elzr.com>
+" https://github.com/elzr/vim-json
+" Last Change: 2021-07-01
+
+" 0. Initialization {{{1
+" =================
+
+" Only load this indent file when no other was loaded.
+if exists("b:did_indent")
+ finish
+endif
+let b:did_indent = 1
+
+setlocal nosmartindent
+
+" Now, set up our indentation expression and keys that trigger it.
+setlocal indentexpr=GetJSONCIndent()
+setlocal indentkeys=0{,0},0),0[,0],!^F,o,O,e
+
+" Only define the function once.
+if exists("*GetJSONCIndent")
+ finish
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+" 1. Variables {{{1
+" ============
+
+let s:line_term = '\s*\%(\%(\/\/\).*\)\=$'
+" Regex that defines blocks.
+let s:block_regex = '\%({\)\s*\%(|\%([*@]\=\h\w*,\=\s*\)\%(,\s*[*@]\=\h\w*\)*|\)\=' . s:line_term
+
+" 2. Auxiliary Functions {{{1
+" ======================
+
+" Check if the character at lnum:col is inside a string.
+function s:IsInString(lnum, col)
+ return synIDattr(synID(a:lnum, a:col, 1), 'name') == 'jsonString'
+endfunction
+
+" Find line above 'lnum' that isn't empty, or in a string.
+function s:PrevNonBlankNonString(lnum)
+ let lnum = prevnonblank(a:lnum)
+ while lnum > 0
+ " If the line isn't empty or in a string, end search.
+ let line = getline(lnum)
+ if !(s:IsInString(lnum, 1) && s:IsInString(lnum, strlen(line)))
+ break
+ endif
+ let lnum = prevnonblank(lnum - 1)
+ endwhile
+ return lnum
+endfunction
+
+" Check if line 'lnum' has more opening brackets than closing ones.
+function s:LineHasOpeningBrackets(lnum)
+ let open_0 = 0
+ let open_2 = 0
+ let open_4 = 0
+ let line = getline(a:lnum)
+ let pos = match(line, '[][(){}]', 0)
+ while pos != -1
+ let idx = stridx('(){}[]', line[pos])
+ if idx % 2 == 0
+ let open_{idx} = open_{idx} + 1
+ else
+ let open_{idx - 1} = open_{idx - 1} - 1
+ endif
+ let pos = match(line, '[][(){}]', pos + 1)
+ endwhile
+ return (open_0 > 0) . (open_2 > 0) . (open_4 > 0)
+endfunction
+
+function s:Match(lnum, regex)
+ let col = match(getline(a:lnum), a:regex) + 1
+ return col > 0 && !s:IsInString(a:lnum, col) ? col : 0
+endfunction
+
+" 3. GetJSONCIndent Function {{{1
+" =========================
+
+function GetJSONCIndent()
+ if !exists("s:inside_comment")
+ let s:inside_comment = 0
+ endif
+
+ " 3.1. Setup {{{2
+ " ----------
+
+ " Set up variables for restoring position in file. Could use v:lnum here.
+ let vcol = col('.')
+
+ " 3.2. Work on the current line {{{2
+ " -----------------------------
+
+
+ " Get the current line.
+ let line = getline(v:lnum)
+ let ind = -1
+ if s:inside_comment == 0
+ " TODO iterate through all the matches in a line
+ let col = matchend(line, '\/\*')
+ if col > 0 && !s:IsInString(v:lnum, col)
+ let s:inside_comment = 1
+ endif
+ endif
+ " If we're in the middle of a comment
+ if s:inside_comment == 1
+ let col = matchend(line, '\*\/')
+ if col > 0 && !s:IsInString(v:lnum, col)
+ let s:inside_comment = 0
+ endif
+ return ind
+ endif
+ if line =~ '^\s*//'
+ return ind
+ endif
+
+ " If we got a closing bracket on an empty line, find its match and indent
+ " according to it.
+ let col = matchend(line, '^\s*[]}]')
+
+ if col > 0 && !s:IsInString(v:lnum, col)
+ call cursor(v:lnum, col)
+ let bs = strpart('{}[]', stridx('}]', line[col - 1]) * 2, 2)
+
+ let pairstart = escape(bs[0], '[')
+ let pairend = escape(bs[1], ']')
+ let pairline = searchpair(pairstart, '', pairend, 'bW')
+
+ if pairline > 0
+ let ind = indent(pairline)
+ else
+ let ind = virtcol('.') - 1
+ endif
+
+ return ind
+ endif
+
+ " If we are in a multi-line string, don't do anything to it.
+ if s:IsInString(v:lnum, matchend(line, '^\s*') + 1)
+ return indent('.')
+ endif
+
+ " 3.3. Work on the previous line. {{{2
+ " -------------------------------
+
+ let lnum = prevnonblank(v:lnum - 1)
+
+ if lnum == 0
+ return 0
+ endif
+
+ " Set up variables for current line.
+ let line = getline(lnum)
+ let ind = indent(lnum)
+
+ " If the previous line ended with a block opening, add a level of indent.
+ " if s:Match(lnum, s:block_regex)
+ " return indent(lnum) + shiftwidth()
+ " endif
+
+ " If the previous line contained an opening bracket, and we are still in it,
+ " add indent depending on the bracket type.
+ if line =~ '[[({]'
+ let counts = s:LineHasOpeningBrackets(lnum)
+ if counts[0] == '1' || counts[1] == '1' || counts[2] == '1'
+ return ind + shiftwidth()
+ else
+ call cursor(v:lnum, vcol)
+ end
+ endif
+
+ " }}}2
+
+ return ind
+endfunction
+
+" }}}1
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
+
+" vim:set sw=2 sts=2 ts=8 noet: