Merge remote-tracking branch 'upstream/master' into usermarksusermarks

22 files changed, 1457 insertions, 89 deletions

diff --git a/runtime/indent/chatito.vim b/runtime/indent/chatito.vim
new file mode 100644
index 0000000000..1ff5e9e3f1
--- /dev/null
+++ b/runtime/indent/chatito.vim
@@ -0,0 +1,32 @@
+" Vim indent file
+" Language:	Chatito
+" Maintainer:	ObserverOfTime <chronobserver@disroot.org>
+" Last Change:	2022 Sep 20
+
+if exists('b:did_indent')
+    finish
+endif
+let b:did_indent = 1
+
+setlocal indentexpr=GetChatitoIndent()
+setlocal indentkeys=o,O,*<Return>,0#,!^F
+
+let b:undo_indent = 'setl inde< indk<'
+
+if exists('*GetChatitoIndent')
+    finish
+endif
+
+function GetChatitoIndent()
+    let l:prev = v:lnum - 1
+    if getline(prevnonblank(l:prev)) =~# '^[~%@]\['
+        " shift indent after definitions
+        return shiftwidth()
+    elseif getline(l:prev) !~# '^\s*$'
+        " maintain indent in sentences
+        return indent(l:prev)
+    else
+        " reset indent after a blank line
+        return 0
+    end
+endfunction
diff --git a/runtime/indent/erlang.vim b/runtime/indent/erlang.vim
index 4e7bf4ef4d..7aa38587a6 100644
--- a/runtime/indent/erlang.vim
+++ b/runtime/indent/erlang.vim
@@ -4,7 +4,7 @@
 " Contributors: Edwin Fine <efine145_nospam01 at usa dot net>
 "               Pawel 'kTT' Salata <rockplayer.pl@gmail.com>
 "               Ricardo Catalinas Jiménez <jimenezrick@gmail.com>
-" Last Update:  2020-Jun-11
+" Last Update:  2022-Sep-06
 " License:      Vim license
 " URL:          https://github.com/vim-erlang/vim-erlang-runtime
 
@@ -30,7 +30,9 @@ else
 endif
 
 setlocal indentexpr=ErlangIndent()
-setlocal indentkeys+=0=end,0=of,0=catch,0=after,0=when,0=),0=],0=},0=>>
+setlocal indentkeys+=0=end,0=of,0=catch,0=after,0=else,0=when,0=),0=],0=},0=>>
+
+let b:undo_indent = "setl inde< indk<"
 
 " Only define the functions once
 if exists("*ErlangIndent")
@@ -235,8 +237,8 @@ function! s:GetTokensFromLine(line, string_continuation, atom_continuation,
 
     " Two-character tokens
     elseif i + 1 < linelen &&
-         \ index(['->', '<<', '>>', '||', '==', '/=', '=<', '>=', '++', '--',
-         \        '::'],
+         \ index(['->', '<<', '>>', '||', '==', '/=', '=<', '>=', '?=', '++',
+         \        '--', '::'],
          \       a:line[i : i + 1]) != -1
       call add(indtokens, [a:line[i : i + 1], vcol, i])
       let next_i = i + 2
@@ -558,8 +560,8 @@ function! s:IsCatchStandalone(lnum, i)
     let is_standalone = 0
   elseif prev_token =~# '[a-z]'
     if index(['after', 'and', 'andalso', 'band', 'begin', 'bnot', 'bor', 'bsl',
-            \ 'bsr', 'bxor', 'case', 'catch', 'div', 'not', 'or', 'orelse',
-            \ 'rem', 'try', 'xor'], prev_token) != -1
+            \ 'bsr', 'bxor', 'case', 'catch', 'div', 'maybe', 'not', 'or',
+            \ 'orelse', 'rem', 'try', 'xor'], prev_token) != -1
       " If catch is after these keywords, it is standalone
       let is_standalone = 1
     else
@@ -568,7 +570,7 @@ function! s:IsCatchStandalone(lnum, i)
       "
       " Keywords:
       " - may precede 'catch': end
-      " - may not precede 'catch': fun if of receive when
+      " - may not precede 'catch': else fun if of receive when
       " - unused: cond let query
       let is_standalone = 0
     endif
@@ -577,7 +579,7 @@ function! s:IsCatchStandalone(lnum, i)
     let is_standalone = 0
   else
     " This 'else' branch includes the following tokens:
-    "   -> == /= =< < >= > =:= =/= + - * / ++ -- :: < > ; ( [ { ? = ! . |
+    "   -> == /= =< < >= > ?= =:= =/= + - * / ++ -- :: < > ; ( [ { ? = ! . |
     let is_standalone = 1
   endif
 
@@ -590,6 +592,7 @@ endfunction
 " Purpose:
 "   This function is called when a begin-type element ('begin', 'case',
 "   '[', '<<', etc.) is found. It asks the caller to return if the stack
+"   if already empty.
 " Parameters:
 "   stack: [token]
 "   token: string
@@ -758,7 +761,7 @@ endfunction
 function! s:SearchEndPair(lnum, curr_col)
   return s:SearchPair(
          \ a:lnum, a:curr_col,
-         \ '\C\<\%(case\|try\|begin\|receive\|if\)\>\|' .
+         \ '\C\<\%(case\|try\|begin\|receive\|if\|maybe\)\>\|' .
          \ '\<fun\>\%(\s\|\n\|%.*$\|[A-Z_@][a-zA-Z_@]*\)*(',
          \ '',
          \ '\<end\>')
@@ -847,6 +850,7 @@ function! s:ErlangCalcIndent2(lnum, stack)
         if ret | return res | endif
 
       " case EXPR of BRANCHES end
+      " if BRANCHES end
       " try EXPR catch BRANCHES end
       " try EXPR after BODY end
       " try EXPR catch BRANCHES after BODY end
@@ -855,15 +859,17 @@ function! s:ErlangCalcIndent2(lnum, stack)
       " try EXPR of BRANCHES catch BRANCHES after BODY end
       " receive BRANCHES end
       " receive BRANCHES after BRANCHES end
+      " maybe EXPR end
+      " maybe EXPR else BRANCHES end
 
       " This branch is not Emacs-compatible
-      elseif (index(['of', 'receive', 'after', 'if'], token) != -1 ||
+      elseif (index(['of', 'receive', 'after', 'if', 'else'], token) != -1 ||
            \  (token ==# 'catch' && !s:IsCatchStandalone(lnum, i))) &&
            \ !last_token_of_line &&
            \ (empty(stack) || stack ==# ['when'] || stack ==# ['->'] ||
            \  stack ==# ['->', ';'])
 
-        " If we are after of/receive, but these are not the last
+        " If we are after of/receive/etc, but these are not the last
         " tokens of the line, we want to indent like this:
         "
         "   % stack == []
@@ -889,21 +895,21 @@ function! s:ErlangCalcIndent2(lnum, stack)
         " stack = ['when']  =>  LTI is a guard
         if empty(stack) || stack == ['->', ';']
           call s:Log('    LTI is in a condition after ' .
-                    \'"of/receive/after/if/catch" -> return')
+                    \'"of/receive/after/if/else/catch" -> return')
           return stored_vcol
         elseif stack == ['->']
           call s:Log('    LTI is in a branch after ' .
-                    \'"of/receive/after/if/catch" -> return')
+                    \'"of/receive/after/if/else/catch" -> return')
           return stored_vcol + shiftwidth()
         elseif stack == ['when']
           call s:Log('    LTI is in a guard after ' .
-                    \'"of/receive/after/if/catch" -> return')
+                    \'"of/receive/after/if/else/catch" -> return')
           return stored_vcol + shiftwidth()
         else
           return s:UnexpectedToken(token, stack)
         endif
 
-      elseif index(['case', 'if', 'try', 'receive'], token) != -1
+      elseif index(['case', 'if', 'try', 'receive', 'maybe'], token) != -1
 
         " stack = []  =>  LTI is a condition
         " stack = ['->']  =>  LTI is a branch
@@ -913,45 +919,47 @@ function! s:ErlangCalcIndent2(lnum, stack)
           " pass
         elseif (token ==# 'case' && stack[0] ==# 'of') ||
              \ (token ==# 'if') ||
+             \ (token ==# 'maybe' && stack[0] ==# 'else') ||
              \ (token ==# 'try' && (stack[0] ==# 'of' ||
              \                     stack[0] ==# 'catch' ||
              \                     stack[0] ==# 'after')) ||
              \ (token ==# 'receive')
 
           " From the indentation point of view, the keyword
-          " (of/catch/after/end) before the LTI is what counts, so
+          " (of/catch/after/else/end) before the LTI is what counts, so
           " when we reached these tokens, and the stack already had
-          " a catch/after/end, we didn't modify it.
+          " a catch/after/else/end, we didn't modify it.
           "
-          " This way when we reach case/try/receive (i.e. now),
-          " there is at most one of/catch/after/end token in the
+          " This way when we reach case/try/receive/maybe (i.e. now),
+          " there is at most one of/catch/after/else/end token in the
           " stack.
           if token ==# 'case' || token ==# 'try' ||
-           \ (token ==# 'receive' && stack[0] ==# 'after')
+           \ (token ==# 'receive' && stack[0] ==# 'after') ||
+           \ (token ==# 'maybe' && stack[0] ==# 'else')
             call s:Pop(stack)
           endif
 
           if empty(stack)
             call s:Log('    LTI is in a condition; matching ' .
-                      \'"case/if/try/receive" found')
+                      \'"case/if/try/receive/maybe" found')
             let stored_vcol = curr_vcol + shiftwidth()
           elseif stack[0] ==# 'align_to_begin_element'
             call s:Pop(stack)
             let stored_vcol = curr_vcol
           elseif len(stack) > 1 && stack[0] ==# '->' && stack[1] ==# ';'
             call s:Log('    LTI is in a condition; matching ' .
-                      \'"case/if/try/receive" found')
+                      \'"case/if/try/receive/maybe" found')
             call s:Pop(stack)
             call s:Pop(stack)
             let stored_vcol = curr_vcol + shiftwidth()
           elseif stack[0] ==# '->'
             call s:Log('    LTI is in a branch; matching ' .
-                      \'"case/if/try/receive" found')
+                      \'"case/if/try/receive/maybe" found')
             call s:Pop(stack)
             let stored_vcol = curr_vcol + 2 * shiftwidth()
           elseif stack[0] ==# 'when'
             call s:Log('    LTI is in a guard; matching ' .
-                      \'"case/if/try/receive" found')
+                      \'"case/if/try/receive/maybe" found')
             call s:Pop(stack)
             let stored_vcol = curr_vcol + 2 * shiftwidth() + 2
           endif
@@ -1213,7 +1221,7 @@ function! s:ErlangCalcIndent2(lnum, stack)
 
         if empty(stack)
           call s:Push(stack, ';')
-        elseif index([';', '->', 'when', 'end', 'after', 'catch'],
+        elseif index([';', '->', 'when', 'end', 'after', 'catch', 'else'],
                     \stack[0]) != -1
           " Pass:
           "
@@ -1223,10 +1231,10 @@ function! s:ErlangCalcIndent2(lnum, stack)
           "   should keep that, because they signify the type of the
           "   LTI (branch, condition or guard).
           " - From the indentation point of view, the keyword
-          "   (of/catch/after/end) before the LTI is what counts, so
-          "   if the stack already has a catch/after/end, we don't
-          "   modify it. This way when we reach case/try/receive,
-          "   there will be at most one of/catch/after/end token in
+          "   (of/catch/after/else/end) before the LTI is what counts, so
+          "   if the stack already has a catch/after/else/end, we don't
+          "   modify it. This way when we reach case/try/receive/maybe,
+          "   there will be at most one of/catch/after/else/end token in
           "   the stack.
         else
           return s:UnexpectedToken(token, stack)
@@ -1242,7 +1250,8 @@ function! s:ErlangCalcIndent2(lnum, stack)
           " stack = ['->']  ->  LTI is a condition
           " stack = ['->', ';']  -> LTI is a branch
           call s:Push(stack, '->')
-        elseif index(['->', 'when', 'end', 'after', 'catch'], stack[0]) != -1
+        elseif index(['->', 'when', 'end', 'after', 'catch', 'else'],
+                    \stack[0]) != -1
           " Pass:
           "
           " - If the stack top is another '->', then one '->' is
@@ -1250,10 +1259,10 @@ function! s:ErlangCalcIndent2(lnum, stack)
           " - If the stack top is a 'when', then we should keep
           "   that, because this signifies that LTI is a in a guard.
           " - From the indentation point of view, the keyword
-          "   (of/catch/after/end) before the LTI is what counts, so
-          "   if the stack already has a catch/after/end, we don't
-          "   modify it. This way when we reach case/try/receive,
-          "   there will be at most one of/catch/after/end token in
+          "   (of/catch/after/else/end) before the LTI is what counts, so
+          "   if the stack already has a catch/after/else/end, we don't
+          "   modify it. This way when we reach case/try/receive/maybe,
+          "   there will be at most one of/catch/after/else/end token in
           "   the stack.
         else
           return s:UnexpectedToken(token, stack)
@@ -1283,7 +1292,8 @@ function! s:ErlangCalcIndent2(lnum, stack)
             "       LTI
             call s:Push(stack, token)
           endif
-        elseif index(['->', 'when', 'end', 'after', 'catch'], stack[0]) != -1
+        elseif index(['->', 'when', 'end', 'after', 'catch', 'else'],
+                    \stack[0]) != -1
           " Pass:
           " - If the stack top is another 'when', then one 'when' is
           "   enough.
@@ -1291,21 +1301,63 @@ function! s:ErlangCalcIndent2(lnum, stack)
           "   should keep that, because they signify the type of the
           "   LTI (branch, condition or guard).
           " - From the indentation point of view, the keyword
-          "   (of/catch/after/end) before the LTI is what counts, so
-          "   if the stack already has a catch/after/end, we don't
-          "   modify it. This way when we reach case/try/receive,
-          "   there will be at most one of/catch/after/end token in
+          "   (of/catch/after/else/end) before the LTI is what counts, so
+          "   if the stack already has a catch/after/else/end, we don't
+          "   modify it. This way when we reach case/try/receive/maybe,
+          "   there will be at most one of/catch/after/else/end token in
           "   the stack.
         else
           return s:UnexpectedToken(token, stack)
         endif
 
-      elseif token ==# 'of' || token ==# 'after' ||
+      elseif token ==# 'of' || token ==# 'after' || token ==# 'else' ||
            \ (token ==# 'catch' && !s:IsCatchStandalone(lnum, i))
 
-        if token ==# 'after'
-          " If LTI is between an 'after' and the corresponding
-          " 'end', then let's return
+        if token ==# 'after' || token ==# 'else'
+          " If LTI is between an after/else and the corresponding 'end', then
+          " let's return because calculating the indentation based on
+          " after/else is enough.
+          "
+          " Example:
+          "   receive A after
+          "                 LTI
+          "   maybe A else
+          "               LTI
+          "
+          " Note about Emacs compabitility {{{
+          "
+          " It would be fine to indent the examples above the following way:
+          "
+          "   receive A after
+          "       LTI
+          "   maybe A else
+          "       LTI
+          "
+          " We intend it the way above because that is how Emacs does it.
+          " Also, this is a bit faster.
+          "
+          " We are still not 100% Emacs compatible because of placing the
+          " 'end' after the indented blocks.
+          "
+          " Emacs example:
+          "
+          "   receive A after
+          "                 LTI
+          "             end,
+          "   maybe A else
+          "               LTI
+          "               end % Yes, it's here (in OTP 25.0, might change
+          "                   % later)
+          "
+          " vim-erlang example:
+          "
+          "   receive A after
+          "                 LTI
+          "   end,
+          "   maybe A else
+          "               LTI
+          "   end
+          " }}}
           let [ret, res] = s:BeginElementFoundIfEmpty(stack, token, curr_vcol,
                                                      \stored_vcol, shiftwidth())
           if ret | return res | endif
@@ -1313,7 +1365,8 @@ function! s:ErlangCalcIndent2(lnum, stack)
 
         if empty(stack) || stack[0] ==# '->' || stack[0] ==# 'when'
           call s:Push(stack, token)
-        elseif stack[0] ==# 'catch' || stack[0] ==# 'after' || stack[0] ==# 'end'
+        elseif stack[0] ==# 'catch' || stack[0] ==# 'after' ||
+              \stack[0] ==# 'else' || stack[0] ==# 'end'
           " Pass: From the indentation point of view, the keyword
           " (of/catch/after/end) before the LTI is what counts, so
           " if the stack already has a catch/after/end, we don't
@@ -1403,7 +1456,7 @@ function! ErlangIndent()
   endif
 
   let ml = matchlist(currline,
-                    \'^\(\s*\)\(\%(end\|of\|catch\|after\)\>\|[)\]}]\|>>\)')
+                    \'^\(\s*\)\(\%(end\|of\|catch\|after\|else\)\>\|[)\]}]\|>>\)')
 
   " If the line has a special beginning, but not a standalone catch
   if !empty(ml) && !(ml[2] ==# 'catch' && s:IsCatchStandalone(v:lnum, 0))
diff --git a/runtime/indent/gyp.vim b/runtime/indent/gyp.vim
new file mode 100644
index 0000000000..c3980ac568
--- /dev/null
+++ b/runtime/indent/gyp.vim
@@ -0,0 +1,7 @@
+" Vim indent file
+" Language:	GYP
+" Maintainer:	ObserverOfTime <chronobserver@disroot.org>
+" Last Change:	2022 Sep 27
+
+" JSON indent works well
+runtime! indent/json.vim
diff --git a/runtime/indent/hare.vim b/runtime/indent/hare.vim
new file mode 100644
index 0000000000..bc4fea4e61
--- /dev/null
+++ b/runtime/indent/hare.vim
@@ -0,0 +1,138 @@
+" Vim indent file
+" Language: Hare
+" Maintainer: Amelia Clarke <me@rsaihe.dev>
+" Last Change: 2022 Sep 22
+
+if exists("b:did_indent")
+  finish
+endif
+let b:did_indent = 1
+
+if !has("cindent") || !has("eval")
+  finish
+endif
+
+setlocal cindent
+
+" L0 -> don't deindent labels
+" (s -> use one indent after a trailing (
+" m1 -> if ) starts a line, indent it the same as its matching (
+" ks -> add an extra indent to extra lines in an if expression or for expression
+" j1 -> indent code inside {} one level when in parentheses
+" J1 -> see j1
+" *0 -> don't search for unclosed block comments
+" #1 -> don't deindent lines that begin with #
+setlocal cinoptions=L0,(s,m1,ks,j1,J1,*0,#1
+
+" Controls which keys reindent the current line.
+" 0{     -> { at beginning of line
+" 0}     -> } at beginning of line
+" 0)     -> ) at beginning of line
+" 0]     -> ] at beginning of line
+" !^F    -> <C-f> (not inserted)
+" o      -> <CR> or `o` command
+" O      -> `O` command
+" e      -> else
+" 0=case -> case
+setlocal indentkeys=0{,0},0),0],!^F,o,O,e,0=case
+
+setlocal cinwords=if,else,for,switch,match
+
+setlocal indentexpr=GetHareIndent()
+
+function! FloorCindent(lnum)
+  return cindent(a:lnum) / shiftwidth() * shiftwidth()
+endfunction
+
+function! GetHareIndent()
+  let line = getline(v:lnum)
+  let prevlnum = prevnonblank(v:lnum - 1)
+  let prevline = getline(prevlnum)
+  let prevprevline = getline(prevnonblank(prevlnum - 1))
+
+  " This is all very hacky and imperfect, but it's tough to do much better when
+  " working with regex-based indenting rules.
+
+  " If the previous line ended with =, indent by one shiftwidth.
+  if prevline =~# '\v\=\s*(//.*)?$'
+    return indent(prevlnum) + shiftwidth()
+  endif
+
+  " If the previous line ended in a semicolon and the line before that ended
+  " with =, deindent by one shiftwidth.
+  if prevline =~# '\v;\s*(//.*)?$' && prevprevline =~# '\v\=\s*(//.*)?$'
+    return indent(prevlnum) - shiftwidth()
+  endif
+
+  " TODO: The following edge-case is still indented incorrectly:
+  " case =>
+  "         if (foo) {
+  "                 bar;
+  "         };
+  " | // cursor is incorrectly deindented by one shiftwidth.
+  "
+  " This only happens if the {} block is the first statement in the case body.
+  " If `case` is typed, the case will also be incorrectly deindented by one
+  " shiftwidth. Are you having fun yet?
+
+  " Deindent cases.
+  if line =~# '\v^\s*case'
+    " If the previous line was also a case, don't do any special indenting.
+    if prevline =~# '\v^\s*case'
+      return indent(prevlnum)
+    end
+
+    " If the previous line was a multiline case, deindent by one shiftwidth.
+    if prevline =~# '\v\=\>\s*(//.*)?$'
+      return indent(prevlnum) - shiftwidth()
+    endif
+
+    " If the previous line started a block, deindent by one shiftwidth.
+    " This handles the first case in a switch/match block.
+    if prevline =~# '\v\{\s*(//.*)?$'
+      return FloorCindent(v:lnum) - shiftwidth()
+    end
+
+    " If the previous line ended in a semicolon and the line before that wasn't
+    " a case, deindent by one shiftwidth.
+    if prevline =~# '\v;\s*(//.*)?$' && prevprevline !~# '\v\=\>\s*(//.*)?$'
+      return FloorCindent(v:lnum) - shiftwidth()
+    end
+
+    let l:indent = FloorCindent(v:lnum)
+
+    " If a normal cindent would indent the same amount as the previous line,
+    " deindent by one shiftwidth. This fixes some issues with `case let` blocks.
+    if l:indent == indent(prevlnum)
+      return l:indent - shiftwidth()
+    endif
+
+    " Otherwise, do a normal cindent.
+    return l:indent
+  endif
+
+  " Don't indent an extra shiftwidth for cases which span multiple lines.
+  if prevline =~# '\v\=\>\s*(//.*)?$' && prevline !~# '\v^\s*case\W'
+    return indent(prevlnum)
+  endif
+
+  " Indent the body of a case.
+  " If the previous line ended in a semicolon and the line before that was a
+  " case, don't do any special indenting.
+  if prevline =~# '\v;\s*(//.*)?$' && prevprevline =~# '\v\=\>\s*(//.*)?$' && line !~# '\v^\s*}'
+    return indent(prevlnum)
+  endif
+
+  let l:indent = FloorCindent(v:lnum)
+
+  " If the previous line was a case and a normal cindent wouldn't indent, indent
+  " an extra shiftwidth.
+  if prevline =~# '\v\=\>\s*(//.*)?$' && l:indent == indent(prevlnum)
+    return l:indent + shiftwidth()
+  endif
+
+  " If everything above is false, do a normal cindent.
+  return l:indent
+endfunction
+
+" vim: tabstop=2 shiftwidth=2 expandtab
diff --git a/runtime/indent/json.vim b/runtime/indent/json.vim
index 09c7d7a85a..510f7e8f42 100644
--- a/runtime/indent/json.vim
+++ b/runtime/indent/json.vim
@@ -3,6 +3,7 @@
 " 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
@@ -22,6 +23,8 @@ setlocal nosmartindent
 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
diff --git a/runtime/indent/lua.vim b/runtime/indent/lua.vim
index 604cd333c9..0d1f934a03 100644
--- a/runtime/indent/lua.vim
+++ b/runtime/indent/lua.vim
@@ -3,6 +3,7 @@
 " Maintainer:	Marcus Aurelius Farias <marcus.cf 'at' bol.com.br>
 " First Author:	Max Ischenko <mfi 'at' ukr.net>
 " Last Change:	2017 Jun 13
+"		2022 Sep 07: b:undo_indent added by Doug Kearns
 
 " Only load this indent file when no other was loaded.
 if exists("b:did_indent")
@@ -18,6 +19,8 @@ setlocal indentkeys+=0=end,0=until
 
 setlocal autoindent
 
+let b:undo_indent = "setlocal autoindent< indentexpr< indentkeys<"
+
 " Only define the function once.
 if exists("*GetLuaIndent")
   finish
diff --git a/runtime/indent/nginx.vim b/runtime/indent/nginx.vim
index 8cef7662e0..65506099f4 100644
--- a/runtime/indent/nginx.vim
+++ b/runtime/indent/nginx.vim
@@ -1,19 +1,78 @@
 " Vim indent file
 " Language: nginx.conf
 " Maintainer: Chris Aumann <me@chr4.org>
-" Last Change:  2022 Apr 06
+" Last Change:  2022 Dec 01
 
-if exists("b:did_indent")
-    finish
+" Only load this indent file when no other was loaded.
+if exists('b:did_indent')
+  finish
 endif
 let b:did_indent = 1
 
-setlocal indentexpr=
+setlocal indentexpr=GetNginxIndent()
 
-" cindent actually works for nginx' simple file structure
-setlocal cindent
+setlocal indentkeys=0{,0},0#,!^F,o,O
 
-" Just make sure that the comments are not reset as defs would be.
-setlocal cinkeys-=0#
+let b:undo_indent = 'setl inde< indk<'
 
-let b:undo_indent = "setl inde< cin< cink<"
+" Only define the function once.
+if exists('*GetNginxIndent')
+  finish
+endif
+
+function GetNginxIndent() abort
+  let plnum = s:PrevNotAsBlank(v:lnum - 1)
+
+  " Hit the start of the file, use zero indent.
+  if plnum == 0
+    return 0
+  endif
+
+  let ind = indent(plnum)
+
+  " Add a 'shiftwidth' after '{'
+  if s:AsEndWith(getline(plnum), '{')
+    let ind = ind + shiftwidth()
+  end
+
+  " Subtract a 'shiftwidth' on '}'
+  " This is the part that requires 'indentkeys'.
+  if getline(v:lnum) =~ '^\s*}'
+    let ind = ind - shiftwidth()
+  endif
+
+  let pplnum = s:PrevNotAsBlank(plnum - 1)
+
+  if s:IsLineContinuation(plnum)
+    if !s:IsLineContinuation(pplnum)
+      let ind = ind + shiftwidth()
+    end
+  else
+    if s:IsLineContinuation(pplnum)
+      let ind = ind - shiftwidth()
+    end
+  endif
+
+  return ind
+endfunction
+
+" Find the first line at or above {lnum} that is non-blank and not a comment.
+function s:PrevNotAsBlank(lnum) abort
+  let lnum = prevnonblank(a:lnum)
+  while lnum > 0
+    if getline(lnum) !~ '^\s*#'
+      break
+    endif
+    let lnum = prevnonblank(lnum - 1)
+  endwhile
+  return lnum
+endfunction
+
+" Check whether {line} ends with {pat}, ignoring trailing comments.
+function s:AsEndWith(line, pat) abort
+  return a:line =~ a:pat . '\m\s*\%(#.*\)\?$'
+endfunction
+
+function s:IsLineContinuation(lnum) abort
+  return a:lnum > 0 && !s:AsEndWith(getline(a:lnum), '[;{}]')
+endfunction
diff --git a/runtime/indent/obse.vim b/runtime/indent/obse.vim
new file mode 100644
index 0000000000..6603723dba
--- /dev/null
+++ b/runtime/indent/obse.vim
@@ -0,0 +1,55 @@
+" Vim indent file
+" Language:    Oblivion Language (obl)
+" Original Creator: Kat <katisntgood@gmail.com>
+" Maintainer:  Kat <katisntgood@gmail.com>
+" Created:     01 November 2021
+" Last Change: 13 November 2022
+
+if exists("b:did_indent")
+  finish
+endif
+let b:did_indent = 1
+let b:undo_indent = 'setlocal indentkeys< indentexpr<'
+
+setlocal indentexpr=GetOblIndent()
+setlocal indentkeys+==~endif,=~else,=~loop,=~end
+
+if exists("*GetOblIndent")
+  finish
+endif
+let s:keepcpo = &cpo
+set cpo&vim
+
+let s:SKIP_LINES = '^\s*\(;.*\)'
+function! GetOblIndent()
+
+  let lnum = prevnonblank(v:lnum - 1)
+  let cur_text = getline(v:lnum)
+  if lnum == 0
+    return 0
+  endif
+  let prev_text = getline(lnum)
+  let found_cont = 0
+  let ind = indent(lnum)
+
+  " indent next line on start terms
+  let i = match(prev_text, '\c^\s*\(\s\+\)\?\(\(if\|while\|foreach\|begin\|else\%[if]\)\>\)')
+  if i >= 0
+    let ind += shiftwidth()
+    if strpart(prev_text, i, 1) == '|' && has('syntax_items')
+          \ && synIDattr(synID(lnum, i, 1), "name") =~ '\(Comment\|String\)$'
+      let ind -= shiftwidth()
+    endif
+  endif
+  " indent current line on end/else terms
+  if cur_text =~ '\c^\s*\(\s\+\)\?\(\(loop\|endif\|else\%[if]\)\>\)'
+    let ind = ind - shiftwidth()
+  " if we are at a begin block just go to column 0
+  elseif cur_text =~ '\c^\s*\(\s\+\)\?\(\(begin\|end\)\>\)'
+    let ind = 0
+  endif
+  return ind
+endfunction
+
+let &cpo = s:keepcpo
+unlet s:keepcpo
diff --git a/runtime/indent/racket.vim b/runtime/indent/racket.vim
new file mode 100644
index 0000000000..93bd38fbff
--- /dev/null
+++ b/runtime/indent/racket.vim
@@ -0,0 +1,60 @@
+" Vim indent file
+" Language:             Racket
+" Maintainer:           D. Ben Knoble <ben.knoble+github@gmail.com>
+" Previous Maintainer:  Will Langstroth <will@langstroth.com>
+" URL:                  https://github.com/benknoble/vim-racket
+" Last Change: 2022 Aug 12
+
+if exists("b:did_indent")
+   finish
+endif
+let b:did_indent = 1
+
+setlocal lisp autoindent nosmartindent
+
+setlocal lispwords+=module,module*,module+,parameterize,let-values,let*-values,letrec-values,local
+setlocal lispwords+=define/contract
+setlocal lispwords+=λ
+setlocal lispwords+=with-handlers
+setlocal lispwords+=define-values,opt-lambda,case-lambda,syntax-rules,with-syntax,syntax-case,syntax-parse
+setlocal lispwords+=define-for-syntax,define-syntax-parser,define-syntax-parse-rule,define-syntax-class,define-splicing-syntax-class
+setlocal lispwords+=define-signature,unit,unit/sig,compund-unit/sig,define-values/invoke-unit/sig
+setlocal lispwords+=define-opt/c,define-syntax-rule
+setlocal lispwords+=define-test-suite
+setlocal lispwords+=struct
+setlocal lispwords+=with-input-from-file,with-output-to-file
+
+" Racket OOP
+" TODO missing a lot of define-like forms here (e.g., define/augment, etc.)
+setlocal lispwords+=class,class*,mixin,interface,class/derived
+setlocal lispwords+=define/public,define/pubment,define/public-final
+setlocal lispwords+=define/override,define/overment,define/override-final
+setlocal lispwords+=define/augment,define/augride,define/augment-final
+setlocal lispwords+=define/private
+
+" kanren
+setlocal lispwords+=fresh,run,run*,project,conde,condu
+
+" loops
+setlocal lispwords+=for,for/list,for/fold,for*,for*/list,for*/fold,for/or,for/and,for*/or,for*/and
+setlocal lispwords+=for/hash,for/hasheq,for/hasheqv,for/sum,for/flvector,for*/flvector,for/vector,for*/vector,for*/sum,for*/hash,for*/hasheq,for*/hasheqv
+setlocal lispwords+=for/async
+setlocal lispwords+=for/set,for*/set
+setlocal lispwords+=for/first,for*/first
+
+setlocal lispwords+=match,match*,match/values,define/match,match-lambda,match-lambda*,match-lambda**
+setlocal lispwords+=match-let,match-let*,match-let-values,match-let*-values
+setlocal lispwords+=match-letrec,match-define,match-define-values
+
+setlocal lispwords+=let/cc,let/ec
+
+" qi
+setlocal lispwords+=define-flow,define-switch,flow-lambda,switch-lambda,on,switch,π,λ01
+setlocal lispwords+=define-qi-syntax,define-qi-syntax-parser,define-qi-syntax-rule
+
+" gui-easy
+setlocal lispwords+=if-view,case-view,cond-view,list-view,dyn-view
+setlocal lispwords+=case/dep
+setlocal lispwords+=define/obs
+
+let b:undo_indent = "setlocal lisp< ai< si< lw<"
diff --git a/runtime/indent/solidity.vim b/runtime/indent/solidity.vim
new file mode 100644
index 0000000000..caed726c0a
--- /dev/null
+++ b/runtime/indent/solidity.vim
@@ -0,0 +1,442 @@
+" Vim indent file
+" Language: 		Solidity
+" Acknowledgement: 	Based off of vim-javascript
+" Maintainer: 		Cothi (jiungdev@gmail.com)
+" Original Author: 	tomlion (https://github.com/tomlion/vim-solidity)
+" Last Changed: 	2022 Sep 27
+"
+" 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=GetSolidityIndent()
+setlocal indentkeys=0{,0},0),0],0\,,!^F,o,O,e
+
+" Only define the function once.
+if exists("*GetSolidityIndent")
+  finish
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+" 1. Variables {{{1
+" ============
+
+let s:js_keywords = '^\s*\(break\|case\|catch\|continue\|debugger\|default\|delete\|do\|else\|finally\|for\|function\|if\|in\|instanceof\|new\|return\|switch\|this\|throw\|try\|typeof\|var\|void\|while\|with\)'
+
+" Regex of syntax group names that are or delimit string or are comments.
+let s:syng_strcom = 'string\|regex\|comment\c'
+
+" Regex of syntax group names that are strings.
+let s:syng_string = 'regex\c'
+
+" Regex of syntax group names that are strings or documentation.
+let s:syng_multiline = 'comment\c'
+
+" Regex of syntax group names that are line comment.
+let s:syng_linecom = 'linecomment\c'
+
+" Expression used to check whether we should skip a match with searchpair().
+let s:skip_expr = "synIDattr(synID(line('.'),col('.'),1),'name') =~ '".s:syng_strcom."'"
+
+let s:line_term = '\s*\%(\%(\/\/\).*\)\=$'
+
+" Regex that defines continuation lines, not including (, {, or [.
+let s:continuation_regex = '\%([\\*+/.:]\|\%(<%\)\@<![=-]\|\W[|&?]\|||\|&&\)' . s:line_term
+
+" Regex that defines continuation lines.
+" TODO: this needs to deal with if ...: and so on
+let s:msl_regex = '\%([\\*+/.:([]\|\%(<%\)\@<![=-]\|\W[|&?]\|||\|&&\)' . s:line_term
+
+let s:one_line_scope_regex = '\<\%(if\|else\|for\|while\)\>[^{;]*' . s:line_term
+
+" Regex that defines blocks.
+let s:block_regex = '\%([{[]\)\s*\%(|\%([*@]\=\h\w*,\=\s*\)\%(,\s*[*@]\=\h\w*\)*|\)\=' . s:line_term
+
+let s:var_stmt = '^\s*var'
+
+let s:comma_first = '^\s*,'
+let s:comma_last = ',\s*$'
+
+let s:ternary = '^\s\+[?|:]'
+let s:ternary_q = '^\s\+?'
+
+" 2. Auxiliary Functions {{{1
+" ======================
+
+" Check if the character at lnum:col is inside a string, comment, or is ascii.
+function s:IsInStringOrComment(lnum, col)
+  return synIDattr(synID(a:lnum, a:col, 1), 'name') =~ s:syng_strcom
+endfunction
+
+" 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') =~ s:syng_string
+endfunction
+
+" Check if the character at lnum:col is inside a multi-line comment.
+function s:IsInMultilineComment(lnum, col)
+  return !s:IsLineComment(a:lnum, a:col) && synIDattr(synID(a:lnum, a:col, 1), 'name') =~ s:syng_multiline
+endfunction
+
+" Check if the character at lnum:col is a line comment.
+function s:IsLineComment(lnum, col)
+  return synIDattr(synID(a:lnum, a:col, 1), 'name') =~ s:syng_linecom
+endfunction
+
+" Find line above 'lnum' that isn't empty, in a comment, or in a string.
+function s:PrevNonBlankNonString(lnum)
+  let in_block = 0
+  let lnum = prevnonblank(a:lnum)
+  while lnum > 0
+    " Go in and out of blocks comments as necessary.
+    " If the line isn't empty (with opt. comment) or in a string, end search.
+    let line = getline(lnum)
+    if line =~ '/\*'
+      if in_block
+        let in_block = 0
+      else
+        break
+      endif
+    elseif !in_block && line =~ '\*/'
+      let in_block = 1
+    elseif !in_block && line !~ '^\s*\%(//\).*$' && !(s:IsInStringOrComment(lnum, 1) && s:IsInStringOrComment(lnum, strlen(line)))
+      break
+    endif
+    let lnum = prevnonblank(lnum - 1)
+  endwhile
+  return lnum
+endfunction
+
+" Find line above 'lnum' that started the continuation 'lnum' may be part of.
+function s:GetMSL(lnum, in_one_line_scope)
+  " Start on the line we're at and use its indent.
+  let msl = a:lnum
+  let lnum = s:PrevNonBlankNonString(a:lnum - 1)
+  while lnum > 0
+    " If we have a continuation line, or we're in a string, use line as MSL.
+    " Otherwise, terminate search as we have found our MSL already.
+    let line = getline(lnum)
+    let col = match(line, s:msl_regex) + 1
+    if (col > 0 && !s:IsInStringOrComment(lnum, col)) || s:IsInString(lnum, strlen(line))
+      let msl = lnum
+    else
+      " Don't use lines that are part of a one line scope as msl unless the
+      " flag in_one_line_scope is set to 1
+      "
+      if a:in_one_line_scope
+        break
+      end
+      let msl_one_line = s:Match(lnum, s:one_line_scope_regex)
+      if msl_one_line == 0
+        break
+      endif
+    endif
+    let lnum = s:PrevNonBlankNonString(lnum - 1)
+  endwhile
+  return msl
+endfunction
+
+function s:RemoveTrailingComments(content)
+  let single = '\/\/\(.*\)\s*$'
+  let multi = '\/\*\(.*\)\*\/\s*$'
+  return substitute(substitute(a:content, single, '', ''), multi, '', '')
+endfunction
+
+" Find if the string is inside var statement (but not the first string)
+function s:InMultiVarStatement(lnum)
+  let lnum = s:PrevNonBlankNonString(a:lnum - 1)
+
+"  let type = synIDattr(synID(lnum, indent(lnum) + 1, 0), 'name')
+
+  " loop through previous expressions to find a var statement
+  while lnum > 0
+    let line = getline(lnum)
+
+    " if the line is a js keyword
+    if (line =~ s:js_keywords)
+      " check if the line is a var stmt
+      " if the line has a comma first or comma last then we can assume that we
+      " are in a multiple var statement
+      if (line =~ s:var_stmt)
+        return lnum
+      endif
+
+      " other js keywords, not a var
+      return 0
+    endif
+
+    let lnum = s:PrevNonBlankNonString(lnum - 1)
+  endwhile
+
+  " beginning of program, not a var
+  return 0
+endfunction
+
+" Find line above with beginning of the var statement or returns 0 if it's not
+" this statement
+function s:GetVarIndent(lnum)
+  let lvar = s:InMultiVarStatement(a:lnum)
+  let prev_lnum = s:PrevNonBlankNonString(a:lnum - 1)
+
+  if lvar
+    let line = s:RemoveTrailingComments(getline(prev_lnum))
+
+    " if the previous line doesn't end in a comma, return to regular indent
+    if (line !~ s:comma_last)
+      return indent(prev_lnum) - &sw
+    else
+      return indent(lvar) + &sw
+    endif
+  endif
+
+  return -1
+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
+    if !s:IsInStringOrComment(a:lnum, 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
+    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:IsInStringOrComment(a:lnum, col) ? col : 0
+endfunction
+
+function s:IndentWithContinuation(lnum, ind, width)
+  " Set up variables to use and search for MSL to the previous line.
+  let p_lnum = a:lnum
+  let lnum = s:GetMSL(a:lnum, 1)
+  let line = getline(lnum)
+
+  " If the previous line wasn't a MSL and is continuation return its indent.
+  " TODO: the || s:IsInString() thing worries me a bit.
+  if p_lnum != lnum
+    if s:Match(p_lnum,s:continuation_regex)||s:IsInString(p_lnum,strlen(line))
+      return a:ind
+    endif
+  endif
+
+  " Set up more variables now that we know we aren't continuation bound.
+  let msl_ind = indent(lnum)
+
+  " If the previous line ended with [*+/.-=], start a continuation that
+  " indents an extra level.
+  if s:Match(lnum, s:continuation_regex)
+    if lnum == p_lnum
+      return msl_ind + a:width
+    else
+      return msl_ind
+    endif
+  endif
+
+  return a:ind
+endfunction
+
+function s:InOneLineScope(lnum)
+  let msl = s:GetMSL(a:lnum, 1)
+  if msl > 0 && s:Match(msl, s:one_line_scope_regex)
+    return msl
+  endif
+  return 0
+endfunction
+
+function s:ExitingOneLineScope(lnum)
+  let msl = s:GetMSL(a:lnum, 1)
+  if msl > 0
+    " if the current line is in a one line scope ..
+    if s:Match(msl, s:one_line_scope_regex)
+      return 0
+    else
+      let prev_msl = s:GetMSL(msl - 1, 1)
+      if s:Match(prev_msl, s:one_line_scope_regex)
+        return prev_msl
+      endif
+    endif
+  endif
+  return 0
+endfunction
+
+" 3. GetSolidityIndent Function {{{1
+" =========================
+
+function GetSolidityIndent()
+  " 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
+  " -----------------------------
+
+  let ind = -1
+  " Get the current line.
+  let line = getline(v:lnum)
+  " previous nonblank line number
+  let prevline = prevnonblank(v:lnum - 1)
+
+  " If we got a closing bracket on an empty line, find its match and indent
+  " according to it.  For parentheses we indent to its column - 1, for the
+  " others we indent to the containing line's MSL's level.  Return -1 if fail.
+  let col = matchend(line, '^\s*[],})]')
+  if col > 0 && !s:IsInStringOrComment(v:lnum, col)
+    call cursor(v:lnum, col)
+
+    let lvar = s:InMultiVarStatement(v:lnum)
+    if lvar
+      let prevline_contents = s:RemoveTrailingComments(getline(prevline))
+
+      " check for comma first
+      if (line[col - 1] =~ ',')
+        " if the previous line ends in comma or semicolon don't indent
+        if (prevline_contents =~ '[;,]\s*$')
+          return indent(s:GetMSL(line('.'), 0))
+        " get previous line indent, if it's comma first return prevline indent
+        elseif (prevline_contents =~ s:comma_first)
+          return indent(prevline)
+        " otherwise we indent 1 level
+        else
+          return indent(lvar) + &sw
+        endif
+      endif
+    endif
+
+
+    let bs = strpart('(){}[]', stridx(')}]', line[col - 1]) * 2, 2)
+    if searchpair(escape(bs[0], '\['), '', bs[1], 'bW', s:skip_expr) > 0
+      if line[col-1]==')' && col('.') != col('$') - 1
+        let ind = virtcol('.')-1
+      else
+        let ind = indent(s:GetMSL(line('.'), 0))
+      endif
+    endif
+    return ind
+  endif
+
+  " If the line is comma first, dedent 1 level
+  if (getline(prevline) =~ s:comma_first)
+    return indent(prevline) - &sw
+  endif
+
+  if (line =~ s:ternary)
+    if (getline(prevline) =~ s:ternary_q)
+      return indent(prevline)
+    else
+      return indent(prevline) + &sw
+    endif
+  endif
+
+  " If we are in a multi-line comment, cindent does the right thing.
+  if s:IsInMultilineComment(v:lnum, 1) && !s:IsLineComment(v:lnum, 1)
+    return cindent(v:lnum)
+  endif
+
+  " Check for multiple var assignments
+"  let var_indent = s:GetVarIndent(v:lnum)
+"  if var_indent >= 0
+"    return var_indent
+"  endif
+
+  " 3.3. Work on the previous line. {{{2
+  " -------------------------------
+
+  " If the line is empty and the previous nonblank line was a multi-line
+  " comment, use that comment's indent. Deduct one char to account for the
+  " space in ' */'.
+  if line =~ '^\s*$' && s:IsInMultilineComment(prevline, 1)
+    return indent(prevline) - 1
+  endif
+
+  " Find a non-blank, non-multi-line string line above the current line.
+  let lnum = s:PrevNonBlankNonString(v:lnum - 1)
+
+  " If the line is empty and inside a string, use the previous line.
+  if line =~ '^\s*$' && lnum != prevline
+    return indent(prevnonblank(v:lnum))
+  endif
+
+  " At the start of the file use zero indent.
+  if lnum == 0
+    return 0
+  endif
+
+  " Set up variables for current line.
+  let line = getline(lnum)
+  let ind = indent(lnum)
+
+  " If the previous line ended with a block opening, add a level of indent.
+  if s:Match(lnum, s:block_regex)
+    return indent(s:GetMSL(lnum, 0)) + &sw
+  endif
+
+  " If the previous line contained an opening bracket, and we are still in it,
+  " add indent depending on the bracket type.
+  if line =~ '[[({]'
+    let counts = s:LineHasOpeningBrackets(lnum)
+    if counts[0] == '1' && searchpair('(', '', ')', 'bW', s:skip_expr) > 0
+      if col('.') + 1 == col('$')
+        return ind + &sw
+      else
+        return virtcol('.')
+      endif
+    elseif counts[1] == '1' || counts[2] == '1'
+      return ind + &sw
+    else
+      call cursor(v:lnum, vcol)
+    end
+  endif
+
+  " 3.4. Work on the MSL line. {{{2
+  " --------------------------
+
+  let ind_con = ind
+  let ind = s:IndentWithContinuation(lnum, ind_con, &sw)
+
+  " }}}2
+  "
+  "
+  let ols = s:InOneLineScope(lnum)
+  if ols > 0
+    let ind = ind + &sw
+  else
+    let ols = s:ExitingOneLineScope(lnum)
+    while ols > 0 && ind > 0
+      let ind = ind - &sw
+      let ols = s:InOneLineScope(ols - 1)
+    endwhile
+  endif
+
+  return ind
+endfunction
+
+" }}}1
+
+let &cpo = s:cpo_save
+unlet s:cpo_save
diff --git a/runtime/indent/testdir/python.in b/runtime/indent/testdir/python.in
index e6f05f22bc..57719ee430 100644
--- a/runtime/indent/testdir/python.in
+++ b/runtime/indent/testdir/python.in
@@ -1,6 +1,24 @@
 # vim: set ft=python sw=4 et:
 
 # START_INDENT
+dict = {
+'a': 1,
+'b': 2,
+'c': 3,
+}
+# END_INDENT
+
+# START_INDENT
+# INDENT_EXE let [g:python_indent.open_paren, g:python_indent.closed_paren_align_last_line] = ['shiftwidth()', v:false]
+dict = {
+'a': 1,
+'b': 2,
+'c': 3,
+}
+# END_INDENT
+
+# START_INDENT
+# INDENT_EXE let g:python_indent.open_paren = 'shiftwidth() * 2'
 # INDENT_EXE syntax match pythonFoldMarkers /{{{\d*/ contained containedin=pythonComment
 # xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx {{{1
 
diff --git a/runtime/indent/testdir/python.ok b/runtime/indent/testdir/python.ok
index df3de8f186..f5ebbc2285 100644
--- a/runtime/indent/testdir/python.ok
+++ b/runtime/indent/testdir/python.ok
@@ -1,6 +1,24 @@
 # vim: set ft=python sw=4 et:
 
 # START_INDENT
+dict = {
+        'a': 1,
+        'b': 2,
+        'c': 3,
+        }
+# END_INDENT
+
+# START_INDENT
+# INDENT_EXE let [g:python_indent.open_paren, g:python_indent.closed_paren_align_last_line] = ['shiftwidth()', v:false]
+dict = {
+    'a': 1,
+    'b': 2,
+    'c': 3,
+}
+# END_INDENT
+
+# START_INDENT
+# INDENT_EXE let g:python_indent.open_paren = 'shiftwidth() * 2'
 # INDENT_EXE syntax match pythonFoldMarkers /{{{\d*/ contained containedin=pythonComment
 # xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx {{{1
 
diff --git a/runtime/indent/testdir/runtest.vim b/runtime/indent/testdir/runtest.vim
index 6bbd33cacd..fa4e16e381 100644
--- a/runtime/indent/testdir/runtest.vim
+++ b/runtime/indent/testdir/runtest.vim
@@ -11,6 +11,7 @@ syn on
 set nowrapscan
 set report=9999
 set modeline
+set debug=throw
 
 au! SwapExists * call HandleSwapExists()
 func HandleSwapExists()
@@ -84,7 +85,12 @@ for fname in glob('testdir/*.in', 1, 1)
 
 	exe start + 1
 	if pattern == ''
-	  exe 'normal =' . (end - 1) . 'G'
+	  try
+	    exe 'normal =' . (end - 1) . 'G'
+	  catch
+	    call append(indent_at, 'ERROR: ' . v:exception)
+	    let failed = 1
+	  endtry
 	else
 	  let lnum = search(pattern)
 	  if lnum <= 0
@@ -99,7 +105,12 @@ for fname in glob('testdir/*.in', 1, 1)
 	  else
 	    exe lnum - 1
 	  endif
-	  normal ==
+	  try
+	    normal ==
+	  catch
+	    call append(indent_at, 'ERROR: ' . v:exception)
+	    let failed = 1
+	  endtry
 	endif
       endif
     endwhile
diff --git a/runtime/indent/testdir/vb.in b/runtime/indent/testdir/vb.in
new file mode 100644
index 0000000000..1653ae6f80
--- /dev/null
+++ b/runtime/indent/testdir/vb.in
@@ -0,0 +1,134 @@
+' vim: filetype=vb shiftwidth=4 expandtab
+'
+' START_INDENT
+Public Type GEmployeeRecord     ' Create user-defined type. 
+ID As Integer               ' Define elements of data type. 
+Name As String * 20 
+Address As String * 30 
+Phone As Long 
+HireDate As Date 
+End Type 
+
+Public Enum InterfaceColors 
+icMistyRose = &HE1E4FF& 
+icSlateGray = &H908070& 
+icDodgerBlue = &HFF901E& 
+icDeepSkyBlue = &HFFBF00& 
+icSpringGreen = &H7FFF00& 
+icForestGreen = &H228B22& 
+icGoldenrod = &H20A5DA& 
+icFirebrick = &H2222B2& 
+End Enum
+
+Enum SecurityLevel 
+IllegalEntry = -1 
+SecurityLevel1 = 0 
+SecurityLevel2 = 1 
+End Enum 
+
+Public Function TestConditional (number As Integer, ext As String) As Boolean
+Dim inRange As Boolean
+
+Select Case number
+Case <= 0
+inRange = False
+Case > 10
+inRange = False
+Case Else
+inRange = True
+End Select
+
+' This is a special case identified in the indent script.
+Select Case number
+End Select
+
+If ext = ".xlm" Then
+If inRange Then
+TestConditional = True
+Else
+TestConditional = False
+End If
+ElseIf ext = ".xlsx" Then
+If inRange Then
+TestConditional = False
+Else
+TestConditional = True
+End If
+Else
+TestConditional = False
+End If
+End Function
+
+Private Sub TestIterators (lLimit As Integer, uLimit As Integer)
+Dim a() As Variant
+Dim elmt As Variant
+Dim found As Boolean
+Dim indx As Integer
+Const specialValue As Integer = 5
+
+If uLimit < lLimit Then
+Exit Sub
+End If
+
+ReDim a(lLimit To uLimit)
+For indx=lLimit To Ulimit
+a(indx) = 2 * indx
+Next indx
+
+found = False
+For Each elmt in a
+If elmt = specialValue Then
+found = True
+End If
+Next elmt
+
+If found then
+indx = uLimit
+Do While indx >= lLimit
+indx = indx - 1
+Loop
+End If
+
+End Sub
+
+Public Sub TestMultiline (cellAddr As String, rowNbr As Long)
+Dim rng As Range
+
+Set rng = Range(cellAddr)
+With rng
+.Cells(1,1).Value = _
+"Line 1 of multiline string; " & _
+"Line 2 of multiline string; " & _
+"Line 3 of multiline string"
+End With
+
+' The following lines have whitespace after the underscore character
+' and therefore do not form a valid multiline statement.  The indent
+' script correctly treats them as four single line statements contrary
+' to the author's obvious indent.
+rng..Cells(1,1).Value = _ 
+"Line 1 of multiline string; " & _ 
+"Line 2 of multiline string; " & _ 
+"Line 3 of multiline string"
+
+End Sub
+
+Private Sub TestStmtLabel()
+GoTo stmtLabel
+
+' Statement labels are never indented
+stmtLabel:
+
+End Sub
+
+Sub TestTypeKeyword()
+Type EmployeeRecord         ' Create user-defined type. 
+ID As Integer           ' Define elements of data type. 
+Name As String * 20 
+Address As String * 30 
+Phone As Long 
+HireDate As Date 
+End Type 
+Dim varType As EmployeeRecord
+End Sub
+' END_INDENT
diff --git a/runtime/indent/testdir/vb.ok b/runtime/indent/testdir/vb.ok
new file mode 100644
index 0000000000..143c688708
--- /dev/null
+++ b/runtime/indent/testdir/vb.ok
@@ -0,0 +1,134 @@
+' vim: filetype=vb shiftwidth=4 expandtab
+'
+' START_INDENT
+Public Type GEmployeeRecord     ' Create user-defined type. 
+    ID As Integer               ' Define elements of data type. 
+    Name As String * 20 
+    Address As String * 30 
+    Phone As Long 
+    HireDate As Date 
+End Type 
+
+Public Enum InterfaceColors 
+    icMistyRose = &HE1E4FF& 
+    icSlateGray = &H908070& 
+    icDodgerBlue = &HFF901E& 
+    icDeepSkyBlue = &HFFBF00& 
+    icSpringGreen = &H7FFF00& 
+    icForestGreen = &H228B22& 
+    icGoldenrod = &H20A5DA& 
+    icFirebrick = &H2222B2& 
+End Enum
+
+Enum SecurityLevel 
+    IllegalEntry = -1 
+    SecurityLevel1 = 0 
+    SecurityLevel2 = 1 
+End Enum 
+
+Public Function TestConditional (number As Integer, ext As String) As Boolean
+    Dim inRange As Boolean
+
+    Select Case number
+        Case <= 0
+            inRange = False
+        Case > 10
+            inRange = False
+        Case Else
+            inRange = True
+    End Select
+
+    ' This is a special case identified in the indent script.
+    Select Case number
+    End Select
+
+    If ext = ".xlm" Then
+        If inRange Then
+            TestConditional = True
+        Else
+            TestConditional = False
+        End If
+    ElseIf ext = ".xlsx" Then
+        If inRange Then
+            TestConditional = False
+        Else
+            TestConditional = True
+        End If
+    Else
+        TestConditional = False
+    End If
+End Function
+
+Private Sub TestIterators (lLimit As Integer, uLimit As Integer)
+    Dim a() As Variant
+    Dim elmt As Variant
+    Dim found As Boolean
+    Dim indx As Integer
+    Const specialValue As Integer = 5
+
+    If uLimit < lLimit Then
+        Exit Sub
+    End If
+
+    ReDim a(lLimit To uLimit)
+    For indx=lLimit To Ulimit
+        a(indx) = 2 * indx
+    Next indx
+
+    found = False
+    For Each elmt in a
+        If elmt = specialValue Then
+            found = True
+        End If
+    Next elmt
+
+    If found then
+        indx = uLimit
+        Do While indx >= lLimit
+            indx = indx - 1
+        Loop
+    End If
+
+End Sub
+
+Public Sub TestMultiline (cellAddr As String, rowNbr As Long)
+    Dim rng As Range
+
+    Set rng = Range(cellAddr)
+    With rng
+        .Cells(1,1).Value = _
+            "Line 1 of multiline string; " & _
+            "Line 2 of multiline string; " & _
+            "Line 3 of multiline string"
+    End With
+
+    ' The following lines have whitespace after the underscore character
+    ' and therefore do not form a valid multiline statement.  The indent
+    ' script correctly treats them as four single line statements contrary
+    ' to the author's obvious indent.
+    rng..Cells(1,1).Value = _ 
+    "Line 1 of multiline string; " & _ 
+    "Line 2 of multiline string; " & _ 
+    "Line 3 of multiline string"
+
+End Sub
+
+Private Sub TestStmtLabel()
+    GoTo stmtLabel
+
+    ' Statement labels are never indented
+stmtLabel:
+
+End Sub
+
+Sub TestTypeKeyword()
+    Type EmployeeRecord         ' Create user-defined type. 
+        ID As Integer           ' Define elements of data type. 
+        Name As String * 20 
+        Address As String * 30 
+        Phone As Long 
+        HireDate As Date 
+    End Type 
+    Dim varType As EmployeeRecord
+End Sub
+' END_INDENT
diff --git a/runtime/indent/testdir/vim.in b/runtime/indent/testdir/vim.in
index 873045bc2c..5eb262f50a 100644
--- a/runtime/indent/testdir/vim.in
+++ b/runtime/indent/testdir/vim.in
@@ -36,6 +36,13 @@ let t = [
 \ },
 \  ]
 
+def Func()
+  var d = dd
+	->extend({
+	})
+  eval 0
+enddef
+
 " END_INDENT
 
 " START_INDENT
diff --git a/runtime/indent/testdir/vim.ok b/runtime/indent/testdir/vim.ok
index 8e70abe619..932eebef43 100644
--- a/runtime/indent/testdir/vim.ok
+++ b/runtime/indent/testdir/vim.ok
@@ -36,6 +36,13 @@ let t = [
 	    \ },
 	    \  ]
 
+def Func()
+    var d = dd
+		->extend({
+    })
+    eval 0
+enddef
+
 " END_INDENT
 
 " START_INDENT
diff --git a/runtime/indent/vb.vim b/runtime/indent/vb.vim
index 4d05345565..bc7142f428 100644
--- a/runtime/indent/vb.vim
+++ b/runtime/indent/vb.vim
@@ -1,8 +1,12 @@
 " Vim indent file
 " Language:	VisualBasic (ft=vb) / Basic (ft=basic) / SaxBasic (ft=vb)
 " Author:	Johannes Zellner <johannes@zellner.org>
+" Maintainer:	Michael Soyka (mssr953@gmail.com)
 " Last Change:	Fri, 18 Jun 2004 07:22:42 CEST
 "		Small update 2010 Jul 28 by Maxim Kim
+"		2022/12/15: add support for multiline statements.
+"		2022/12/21: move VbGetIndent from global to script-local scope
+"		2022/12/26: recognize "Type" keyword
 
 if exists("b:did_indent")
     finish
@@ -10,28 +14,33 @@ endif
 let b:did_indent = 1
 
 setlocal autoindent
-setlocal indentexpr=VbGetIndent(v:lnum)
+setlocal indentexpr=s:VbGetIndent(v:lnum)
 setlocal indentkeys&
-setlocal indentkeys+==~else,=~elseif,=~end,=~wend,=~case,=~next,=~select,=~loop,<:>
+setlocal indentkeys+==~else,=~elseif,=~end,=~wend,=~case,=~next,=~select,=~loop
 
 let b:undo_indent = "set ai< indentexpr< indentkeys<"
 
 " Only define the function once.
-if exists("*VbGetIndent")
+if exists("*s:VbGetIndent")
     finish
 endif
 
-fun! VbGetIndent(lnum)
+function s:VbGetIndent(lnum)
+    let this_lnum = a:lnum
+    let this_line = getline(this_lnum)
+
     " labels and preprocessor get zero indent immediately
-    let this_line = getline(a:lnum)
     let LABELS_OR_PREPROC = '^\s*\(\<\k\+\>:\s*$\|#.*\)'
     if this_line =~? LABELS_OR_PREPROC
 	return 0
     endif
+    
+    " Get the current value of "shiftwidth"
+    let bShiftwidth = shiftwidth()
 
     " Find a non-blank line above the current line.
     " Skip over labels and preprocessor directives.
-    let lnum = a:lnum
+    let lnum = this_lnum
     while lnum > 0
 	let lnum = prevnonblank(lnum - 1)
 	let previous_line = getline(lnum)
@@ -45,34 +54,102 @@ fun! VbGetIndent(lnum)
 	return 0
     endif
 
-    let ind = indent(lnum)
+    " Variable "previous_line" now contains the text in buffer line "lnum".
+
+    " Multi-line statements have the underscore character at end-of-line:
+    "
+    "    object.method(arguments, _
+    "                  arguments, _
+    "                  arguments)
+    "
+    " and require extra logic to determine the correct indentation.
+    "
+    " Case 1: Line "lnum" is the first line of a multiline statement.
+    "         Line "lnum" will have a trailing underscore character
+    "         but the preceding non-blank line does not.
+    "         Line "this_lnum" will be indented relative to "lnum".
+    "
+    " Case 2: Line "lnum" is the last line of a multiline statement.
+    "         Line "lnum" will not have a trailing underscore character
+    "         but the preceding non-blank line will.
+    "         Line "this_lnum" will have the same indentation as the starting
+    "         line of the multiline statement.
+    "
+    " Case 3: Line "lnum" is neither the first nor last line.  
+    "         Lines "lnum" and "lnum-1" will have a trailing underscore
+    "         character.
+    "         Line "this_lnum" will have the same indentation as the preceding
+    "         line.
+    "
+    " No matter which case it is, the starting line of the statement must be
+    " found.  It will be assumed that multiline statements cannot have
+    " intermingled comments, statement labels, preprocessor directives or
+    " blank lines.
+    "
+    let lnum_is_continued = (previous_line =~ '_$')
+    if lnum > 1
+	let before_lnum = prevnonblank(lnum-1)
+	let before_previous_line = getline(before_lnum)
+    else
+	let before_lnum = 0
+	let before_previous_line = ""
+    endif
+
+    if before_previous_line !~ '_$'
+	" Variable "previous_line" contains the start of a statement.
+	"
+	let ind = indent(lnum)
+	if lnum_is_continued
+	    let ind += bShiftwidth
+	endif
+    elseif ! lnum_is_continued
+	" Line "lnum" contains the last line of a multiline statement.
+        " Need to find where this multiline statement begins
+	"
+	while before_lnum > 0
+	    let before_lnum -= 1
+	    if getline(before_lnum) !~ '_$'
+		let before_lnum += 1
+		break
+	    endif
+	endwhile
+	if before_lnum == 0
+	    let before_lnum = 1
+	endif
+	let previous_line = getline(before_lnum)
+	let ind = indent(before_lnum)
+    else
+	" Line "lnum" is not the first or last line of a multiline statement.
+	"
+	let ind = indent(lnum)
+    endif
 
     " Add
-    if previous_line =~? '^\s*\<\(begin\|\%(\%(private\|public\|friend\)\s\+\)\=\%(function\|sub\|property\)\|select\|case\|default\|if\|else\|elseif\|do\|for\|while\|enum\|with\)\>'
-	let ind = ind + shiftwidth()
+    if previous_line =~? '^\s*\<\(begin\|\%(\%(private\|public\|friend\)\s\+\)\=\%(function\|sub\|property\|enum\|type\)\|select\|case\|default\|if\|else\|elseif\|do\|for\|while\|with\)\>'
+	let ind = ind + bShiftwidth
     endif
 
     " Subtract
     if this_line =~? '^\s*\<end\>\s\+\<select\>'
 	if previous_line !~? '^\s*\<select\>'
-	    let ind = ind - 2 * shiftwidth()
+	    let ind = ind - 2 * bShiftwidth
 	else
 	    " this case is for an empty 'select' -- 'end select'
 	    " (w/o any case statements) like:
 	    "
 	    " select case readwrite
 	    " end select
-	    let ind = ind - shiftwidth()
+	    let ind = ind - bShiftwidth
 	endif
     elseif this_line =~? '^\s*\<\(end\|else\|elseif\|until\|loop\|next\|wend\)\>'
-	let ind = ind - shiftwidth()
+	let ind = ind - bShiftwidth
     elseif this_line =~? '^\s*\<\(case\|default\)\>'
 	if previous_line !~? '^\s*\<select\>'
-	    let ind = ind - shiftwidth()
+	    let ind = ind - bShiftwidth
 	endif
     endif
 
     return ind
-endfun
+endfunction
 
 " vim:sw=4
diff --git a/runtime/indent/vim.vim b/runtime/indent/vim.vim
index 8076b2df07..3beb70d255 100644
--- a/runtime/indent/vim.vim
+++ b/runtime/indent/vim.vim
@@ -33,7 +33,9 @@ function GetVimIndent()
   endtry
 endfunc
 
-let s:lineContPat = '^\s*\(\\\|"\\ \)'
+" Legacy script line continuation and Vim9 script operators that must mean an
+" expression that continues from the previous line.
+let s:lineContPat = '^\s*\(\\\|"\\ \|->\)'
 
 function GetVimIndentIntern()
   " If the current line has line continuation and the previous one too, use
@@ -133,15 +135,15 @@ function GetVimIndentIntern()
     endif
   endif
 
-  " For a line starting with "}" find the matching "{".  If it is at the start
-  " of the line align with it, probably end of a block.
+  " For a line starting with "}" find the matching "{".  Align with that line,
+  " it is either the matching block start or dictionary start.
   " Use the mapped "%" from matchit to find the match, otherwise we may match
   " a { inside a comment or string.
   if cur_text =~ '^\s*}'
     if maparg('%') != ''
       exe v:lnum
       silent! normal %
-      if line('.') < v:lnum && getline('.') =~ '^\s*{'
+      if line('.') < v:lnum
 	let ind = indent('.')
       endif
     else
@@ -149,19 +151,33 @@ function GetVimIndentIntern()
     endif
   endif
 
-  " Below a line starting with "}" find the matching "{".  If it is at the
-  " end of the line we must be below the end of a dictionary.
-  if prev_text =~ '^\s*}'
-    if maparg('%') != ''
-      exe lnum
-      silent! normal %
-      if line('.') == lnum || getline('.') !~ '^\s*{'
-	let ind = ind - shiftwidth()
+  " Look back for a line to align with
+  while lnum > 1
+    " Below a line starting with "}" find the matching "{".
+    if prev_text =~ '^\s*}'
+      if maparg('%') != ''
+	exe lnum
+	silent! normal %
+	if line('.') < lnum
+	  let lnum = line('.')
+	  let ind = indent(lnum)
+	  let prev_text = getline(lnum)
+	else
+	  break
+	endif
+      else
+	" todo: use searchpair() to find a match
+	break
       endif
+    elseif prev_text =~ s:lineContPat
+      " looks like a continuation like, go back one line
+      let lnum = lnum - 1
+      let ind = indent(lnum)
+      let prev_text = getline(lnum)
     else
-      " todo: use searchpair() to find a match
+      break
     endif
-  endif
+  endwhile
 
   " Below a line starting with "]" we must be below the end of a list.
   " Include a "}" and "},} in case a dictionary ends too.
diff --git a/runtime/indent/vue.vim b/runtime/indent/vue.vim
new file mode 100644
index 0000000000..f6fe350a8f
--- /dev/null
+++ b/runtime/indent/vue.vim
@@ -0,0 +1,14 @@
+" Vim indent file placeholder
+" Language:	Vue
+" Maintainer:	None, please volunteer if you have a real Vue indent script
+" Last Change:	2022 Dec 24
+
+" Only load this indent file when no other was loaded.
+if exists("b:did_indent")
+   finish
+endif
+" don't set b:did_indent, otherwise html indenting won't be activated
+" let b:did_indent = 1
+
+" Html comes closest
+runtime! indent/html.vim
diff --git a/runtime/indent/yaml.vim b/runtime/indent/yaml.vim
index d732c37c05..93fd8ea6f6 100644
--- a/runtime/indent/yaml.vim
+++ b/runtime/indent/yaml.vim
@@ -1,7 +1,7 @@
 " Vim indent file
 " Language:	YAML
 " Maintainer:	Nikolai Pavlov <zyx.vim@gmail.com>
-" Last Update:	Lukas Reineke
+" Last Updates:	Lukas Reineke, "lacygoill"
 " Last Change:	2022 Jun 17
 
 " Only load this indent file when no other was loaded.
@@ -29,8 +29,8 @@ function s:FindPrevLessIndentedLine(lnum, ...)
     let prevlnum = prevnonblank(a:lnum-1)
     let curindent = a:0 ? a:1 : indent(a:lnum)
     while           prevlnum
-                \&&  indent(prevlnum) >=  curindent
-                \&& getline(prevlnum) !~# '^\s*#'
+                \ && indent(prevlnum) >=  curindent
+                \ && getline(prevlnum) !~# '^\s*#'
         let prevlnum = prevnonblank(prevlnum-1)
     endwhile
     return prevlnum
@@ -54,7 +54,7 @@ let s:c_ns_anchor_name = s:c_ns_anchor_char .. '+'
 let s:c_ns_anchor_property =  '\v\&' .. s:c_ns_anchor_name
 
 let s:ns_word_char = '\v[[:alnum:]_\-]'
-let s:ns_tag_char  = '\v%(%\x\x|' .. s:ns_word_char .. '|[#/;?:@&=+$.~*''()])'
+let s:ns_tag_char  = '\v%(\x\x|' .. s:ns_word_char .. '|[#/;?:@&=+$.~*''()])'
 let s:c_named_tag_handle     = '\v\!' .. s:ns_word_char .. '+\!'
 let s:c_secondary_tag_handle = '\v\!\!'
 let s:c_primary_tag_handle   = '\v\!'
@@ -63,7 +63,7 @@ let s:c_tag_handle = '\v%(' .. s:c_named_tag_handle.
             \            '|' .. s:c_primary_tag_handle .. ')'
 let s:c_ns_shorthand_tag = '\v' .. s:c_tag_handle .. s:ns_tag_char .. '+'
 let s:c_non_specific_tag = '\v\!'
-let s:ns_uri_char  = '\v%(%\x\x|' .. s:ns_word_char .. '\v|[#/;?:@&=+$,.!~*''()[\]])'
+let s:ns_uri_char  = '\v%(\x\x|' .. s:ns_word_char .. '\v|[#/;?:@&=+$,.!~*''()[\]])'
 let s:c_verbatim_tag = '\v\!\<' .. s:ns_uri_char.. '+\>'
 let s:c_ns_tag_property = '\v' .. s:c_verbatim_tag.
             \               '\v|' .. s:c_ns_shorthand_tag.
diff --git a/runtime/indent/zig.vim b/runtime/indent/zig.vim
new file mode 100644
index 0000000000..e3ce8aa410
--- /dev/null
+++ b/runtime/indent/zig.vim
@@ -0,0 +1,80 @@
+" Vim filetype indent file
+" Language: Zig
+" Upstream: https://github.com/ziglang/zig.vim
+
+" Only load this indent file when no other was loaded.
+if exists("b:did_indent")
+    finish
+endif
+let b:did_indent = 1
+
+if (!has("cindent") || !has("eval"))
+    finish
+endif
+
+setlocal cindent
+
+" L0 -> 0 indent for jump labels (i.e. case statement in c).
+" j1 -> indenting for "javascript object declarations"
+" J1 -> see j1
+" w1 -> starting a new line with `(` at the same indent as `(`
+" m1 -> if `)` starts a line, match its indent with the first char of its
+"       matching `(` line
+" (s -> use one indent, when starting a new line after a trailing `(`
+setlocal cinoptions=L0,m1,(s,j1,J1,l1
+
+" cinkeys: controls what keys trigger indent formatting
+" 0{ -> {
+" 0} -> }
+" 0) -> )
+" 0] -> ]
+" !^F -> make CTRL-F (^F) reindent the current line when typed
+" o -> when <CR> or `o` is used
+" O -> when the `O` command is used
+setlocal cinkeys=0{,0},0),0],!^F,o,O
+
+setlocal indentexpr=GetZigIndent(v:lnum)
+
+let b:undo_indent = "setlocal cindent< cinkeys< cinoptions< indentexpr<"
+
+function! GetZigIndent(lnum)
+    let curretLineNum = a:lnum
+    let currentLine = getline(a:lnum)
+
+    " cindent doesn't handle multi-line strings properly, so force no indent
+    if currentLine =~ '^\s*\\\\.*'
+        return -1
+    endif
+
+    let prevLineNum = prevnonblank(a:lnum-1)
+    let prevLine = getline(prevLineNum)
+
+    " for lines that look like
+    "   },
+    "   };
+    " try treating them the same as a }
+    if prevLine =~ '\v^\s*},$'
+        if currentLine =~ '\v^\s*};$' || currentLine =~ '\v^\s*}$'
+            return indent(prevLineNum) - 4
+        endif
+        return indent(prevLineNum-1) - 4
+    endif
+    if currentLine =~ '\v^\s*},$'
+        return indent(prevLineNum) - 4
+    endif
+    if currentLine =~ '\v^\s*};$'
+        return indent(prevLineNum) - 4
+    endif
+
+
+    " cindent doesn't handle this case correctly:
+    " switch (1): {
+    "   1 => true,
+    "       ~
+    "       ^---- indents to here
+    if prevLine =~ '.*=>.*,$' && currentLine !~ '.*}$'
+       return indent(prevLineNum)
+    endif
+
+    return cindent(a:lnum)
+endfunction