Adding upstream version 2:9.0.1378.upstream/2%9.0.1378upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 173 insertions, 0 deletions

diff --git a/runtime/indent/json.vim b/runtime/indent/json.vim
new file mode 100644
index 0000000..510f7e8
--- /dev/null
+++ b/runtime/indent/json.vim
@@ -0,0 +1,173 @@
+" Vim indent file
+" Language:		JSON
+" Maintainer:		Eli Parra <eli@elzr.com> https://github.com/elzr/vim-json
+" Last Change:          2020 Aug 30
+"   https://github.com/jakar/vim-json/commit/20b650e22aa750c4ab6a66aa646bdd95d7cd548a#diff-e81fc111b2052e306d126bd9989f7b7c
+"                       2022 Sep 07: b:undo_indent added by Doug Kearns
+" Original Author:	Rogerz Zhang <rogerz.zhang at gmail.com> http://github.com/rogerz/vim-json
+" Acknowledgement:      Based off of vim-javascript maintained by Darrick Wiebe 
+"                       http://www.vim.org/scripts/script.php?script_id=2765
+
+" 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=GetJSONIndent(v:lnum)
+setlocal indentkeys=0{,0},0),0[,0],!^F,o,O,e
+
+let b:undo_indent = "setl inde< indk< si<"
+
+" Only define the function once.
+if exists("*GetJSONIndent")
+  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. GetJSONIndent Function {{{1
+" =========================
+
+function GetJSONIndent(...)
+  " 3.1. Setup {{{2
+  " ----------
+  " For the current line, use the first argument if given, else v:lnum
+  let clnum = a:0 ? a:1 : v:lnum
+
+  " Set up variables for restoring position in file.  Could use clnum here.
+  let vcol = col('.')
+
+  " 3.2. Work on the current line {{{2
+  " -----------------------------
+
+  " Get the current line.
+  let line = getline(clnum)
+  let ind = -1
+
+  " 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(clnum, col)
+    call cursor(clnum, 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(clnum, matchend(line, '^\s*') + 1)
+    return indent('.')
+  endif
+
+  " 3.3. Work on the previous line. {{{2
+  " -------------------------------
+
+  let lnum = prevnonblank(clnum - 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(clnum, 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: