Merge #6613 from justinmk/vim-patches

12 files changed, 591 insertions, 246 deletions

diff --git a/runtime/indent/cdl.vim b/runtime/indent/cdl.vim
index db2b9052b2..5ec2a7b21a 100644
--- a/runtime/indent/cdl.vim
+++ b/runtime/indent/cdl.vim
@@ -16,7 +16,7 @@ if exists("*CdlGetIndent")
     "finish
 endif
 
-" find out if an "...=..." expresion its an asignment (or a conditional)
+" find out if an "...=..." expresion is an assignment (or a conditional)
 " it scans 'line' first, and then the previos lines
 fun! CdlAsignment(lnum, line)
   let f = -1
diff --git a/runtime/indent/cucumber.vim b/runtime/indent/cucumber.vim
index 965c7786ed..999b8d6a76 100644
--- a/runtime/indent/cucumber.vim
+++ b/runtime/indent/cucumber.vim
@@ -1,7 +1,7 @@
 " Vim indent file
 " Language:	Cucumber
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists("b:did_indent")
   finish
@@ -27,6 +27,7 @@ function! GetCucumberIndent()
   let line  = getline(prevnonblank(v:lnum-1))
   let cline = getline(v:lnum)
   let nline = getline(nextnonblank(v:lnum+1))
+  let sw = exists('*shiftwidth') ? shiftwidth() : &sw
   let syn = s:syn(prevnonblank(v:lnum-1))
   let csyn = s:syn(v:lnum)
   let nsyn = s:syn(nextnonblank(v:lnum+1))
@@ -35,38 +36,38 @@ function! GetCucumberIndent()
     return 0
   elseif csyn ==# 'cucumberExamples' || cline =~# '^\s*\%(Examples\|Scenarios\):'
     " examples heading
-    return 2 * &sw
+    return 2 * sw
   elseif csyn =~# '^cucumber\%(Background\|Scenario\|ScenarioOutline\)$' || cline =~# '^\s*\%(Background\|Scenario\|Scenario Outline\):'
     " background, scenario or outline heading
-    return &sw
+    return sw
   elseif syn ==# 'cucumberFeature' || line =~# '^\s*Feature:'
     " line after feature heading
-    return &sw
+    return sw
   elseif syn ==# 'cucumberExamples' || line =~# '^\s*\%(Examples\|Scenarios\):'
     " line after examples heading
-    return 3 * &sw
+    return 3 * sw
   elseif syn =~# '^cucumber\%(Background\|Scenario\|ScenarioOutline\)$' || line =~# '^\s*\%(Background\|Scenario\|Scenario Outline\):'
     " line after background, scenario or outline heading
-    return 2 * &sw
+    return 2 * sw
   elseif cline =~# '^\s*[@#]' && (nsyn == 'cucumberFeature' || nline =~# '^\s*Feature:' || indent(prevnonblank(v:lnum-1)) <= 0)
     " tag or comment before a feature heading
     return 0
   elseif cline =~# '^\s*@'
     " other tags
-    return &sw
+    return sw
   elseif cline =~# '^\s*[#|]' && line =~# '^\s*|'
     " mid-table
     " preserve indent
     return indent(prevnonblank(v:lnum-1))
   elseif cline =~# '^\s*|' && line =~# '^\s*[^|]'
     " first line of a table, relative indent
-    return indent(prevnonblank(v:lnum-1)) + &sw
+    return indent(prevnonblank(v:lnum-1)) + sw
   elseif cline =~# '^\s*[^|]' && line =~# '^\s*|'
     " line after a table, relative unindent
-    return indent(prevnonblank(v:lnum-1)) - &sw
+    return indent(prevnonblank(v:lnum-1)) - sw
   elseif cline =~# '^\s*#' && getline(v:lnum-1) =~ '^\s*$' && (nsyn =~# '^cucumber\%(Background\|Scenario\|ScenarioOutline\)$' || nline =~# '^\s*\%(Background\|Scenario\|Scenario Outline\):')
     " comments on scenarios
-    return &sw
+    return sw
   endif
   return indent(prevnonblank(v:lnum-1))
 endfunction
diff --git a/runtime/indent/eruby.vim b/runtime/indent/eruby.vim
index 80cab7000e..afabd4fe5b 100644
--- a/runtime/indent/eruby.vim
+++ b/runtime/indent/eruby.vim
@@ -19,6 +19,9 @@ else
 endif
 unlet! b:did_indent
 
+" Force HTML indent to not keep state.
+let b:html_indent_usestate = 0
+
 if &l:indentexpr == ''
   if &l:cindent
     let &l:indentexpr = 'cindent(v:lnum)'
@@ -38,7 +41,18 @@ if exists("*GetErubyIndent")
   finish
 endif
 
+" this file uses line continuations
+let s:cpo_sav = &cpo
+set cpo&vim
+
 function! GetErubyIndent(...)
+  " The value of a single shift-width
+  if exists('*shiftwidth')
+    let sw = shiftwidth()
+  else
+    let sw = &sw
+  endif
+
   if a:0 && a:1 == '.'
     let v:lnum = line('.')
   elseif a:0 && a:1 =~ '^\d'
@@ -52,31 +66,44 @@ function! GetErubyIndent(...)
     let ind = GetRubyIndent(v:lnum)
   else
     exe "let ind = ".b:eruby_subtype_indentexpr
+
+    " Workaround for Andy Wokula's HTML indent. This should be removed after
+    " some time, since the newest version is fixed in a different way.
+    if b:eruby_subtype_indentexpr =~# '^HtmlIndent('
+	  \ && exists('b:indent')
+	  \ && type(b:indent) == type({})
+	  \ && has_key(b:indent, 'lnum')
+      " Force HTML indent to not keep state
+      let b:indent.lnum = -1
+    endif
   endif
   let lnum = prevnonblank(v:lnum-1)
   let line = getline(lnum)
   let cline = getline(v:lnum)
   if cline =~# '^\s*<%[-=]\=\s*\%(}\|end\|else\|\%(ensure\|rescue\|elsif\|when\).\{-\}\)\s*\%([-=]\=%>\|$\)'
-    let ind = ind - &sw
+    let ind = ind - sw
   endif
   if line =~# '\S\s*<%[-=]\=\s*\%(}\|end\).\{-\}\s*\%([-=]\=%>\|$\)'
-    let ind = ind - &sw
+    let ind = ind - sw
   endif
   if line =~# '\%({\|\<do\)\%(\s*|[^|]*|\)\=\s*[-=]\=%>'
-    let ind = ind + &sw
+    let ind = ind + sw
   elseif line =~# '<%[-=]\=\s*\%(module\|class\|def\|if\|for\|while\|until\|else\|elsif\|case\|when\|unless\|begin\|ensure\|rescue\)\>.*%>'
-    let ind = ind + &sw
+    let ind = ind + sw
   endif
   if line =~# '^\s*<%[=#-]\=\s*$' && cline !~# '^\s*end\>'
-    let ind = ind + &sw
+    let ind = ind + sw
   endif
-  if line !~# '^\s*<%' && line =~# '%>\s*$'
-    let ind = ind - &sw
+  if line !~# '^\s*<%' && line =~# '%>\s*$' && line !~# '^\s*end\>'
+    let ind = ind - sw
   endif
   if cline =~# '^\s*[-=]\=%>\s*$'
-    let ind = ind - &sw
+    let ind = ind - sw
   endif
   return ind
 endfunction
 
+let &cpo = s:cpo_sav
+unlet! s:cpo_sav
+
 " vim:set sw=2 sts=2 ts=8 noet:
diff --git a/runtime/indent/fortran.vim b/runtime/indent/fortran.vim
index be2f0866d5..c9bee78a6e 100644
--- a/runtime/indent/fortran.vim
+++ b/runtime/indent/fortran.vim
@@ -1,11 +1,12 @@
 " Vim indent file
 " Language:	Fortran 2008 (and older: Fortran 2003, 95, 90, and 77)
-" Version:	0.45
-" Last Change:	2016 Aug. 18
+" Version:	0.46
+" Last Change:	2016 Sep. 27
 " Maintainer:	Ajit J. Thakkar <ajit@unb.ca>; <http://www2.unb.ca/~ajit/>
 " Usage:	For instructions, do :help fortran-indent from Vim
 " Credits:
-"  Useful suggestions were made by: Albert Oliver Serra and Takuya Fujiwara.
+"  Useful suggestions were made, in chronological order, by:
+"  Albert Oliver Serra, Takuya Fujiwara and Philipp Edelmann.
 
 " Only load this indent file when no other was loaded.
 if exists("b:did_indent")
@@ -121,7 +122,8 @@ function FortranGetIndent(lnum)
     let prefix='\(\(pure\|impure\|elemental\|recursive\)\s\+\)\{,2}'
     let type='\(\(integer\|real\|double\s\+precision\|complex\|logical'
           \.'\|character\|type\|class\)\s*\S*\s\+\)\='
-    if prevstat =~? '^\s*\(module\|contains\/submodule\|program\)\>'
+    if prevstat =~? '^\s*\(contains\|submodule\|program\)\>'
+            \ ||prevstat =~? '^\s*'.'module\>\(\s*\procedure\)\@!'
             \ ||prevstat =~? '^\s*'.prefix.'subroutine\>'
             \ ||prevstat =~? '^\s*'.prefix.type.'function\>'
             \ ||prevstat =~? '^\s*'.type.prefix.'function\>'
@@ -129,7 +131,7 @@ function FortranGetIndent(lnum)
     endif
     if getline(v:lnum) =~? '^\s*contains\>'
           \ ||getline(v:lnum)=~? '^\s*end\s*'
-          \ .'\(function\|subroutine\|module\/submodule\|program\)\>'
+          \ .'\(function\|subroutine\|module\|submodule\|program\)\>'
       let ind = ind - shiftwidth()
     endif
   endif
@@ -152,9 +154,6 @@ function FortranGetIndent(lnum)
   if prevstat =~ '&\s*$' && prev2stat !~ '&\s*$'
     let ind = ind + shiftwidth()
   endif
-  if prevstat =~ '&\s*$' && prevstat =~ '\<else\s*if\>'
-    let ind = ind - shiftwidth()
-  endif
   "Line after last continuation line
   if prevstat !~ '&\s*$' && prev2stat =~ '&\s*$' && prevstat !~? '\<then\>'
     let ind = ind - shiftwidth()
diff --git a/runtime/indent/gitconfig.vim b/runtime/indent/gitconfig.vim
index 7d5d44b779..480c96d1b9 100644
--- a/runtime/indent/gitconfig.vim
+++ b/runtime/indent/gitconfig.vim
@@ -1,7 +1,7 @@
 " Vim indent file
 " Language:	git config file
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists("b:did_indent")
   finish
@@ -20,17 +20,18 @@ if exists("*GetGitconfigIndent")
 endif
 
 function! GetGitconfigIndent()
+  let sw    = exists('*shiftwidth') ? shiftwidth() : &sw
   let line  = getline(prevnonblank(v:lnum-1))
   let cline = getline(v:lnum)
   if line =~  '\\\@<!\%(\\\\\)*\\$'
     " odd number of slashes, in a line continuation
-    return 2 * &sw
+    return 2 * sw
   elseif cline =~ '^\s*\['
     return 0
   elseif cline =~ '^\s*\a'
-    return &sw
+    return sw
   elseif cline == ''       && line =~ '^\['
-    return &sw
+    return sw
   else
     return -1
   endif
diff --git a/runtime/indent/haml.vim b/runtime/indent/haml.vim
index c47a8a59c7..c3935af9e9 100644
--- a/runtime/indent/haml.vim
+++ b/runtime/indent/haml.vim
@@ -1,7 +1,7 @@
 " Vim indent file
 " Language:	Haml
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists("b:did_indent")
   finish
@@ -37,10 +37,11 @@ function! GetHamlIndent()
   let line = substitute(line,'^\s\+','','')
   let indent = indent(lnum)
   let cindent = indent(v:lnum)
+  let sw = exists('*shiftwidth') ? shiftwidth() : &sw
   if cline =~# '\v^-\s*%(elsif|else|when)>'
-    let indent = cindent < indent ? cindent : indent - &sw
+    let indent = cindent < indent ? cindent : indent - sw
   endif
-  let increase = indent + &sw
+  let increase = indent + sw
   if indent == indent(lnum)
     let indent = cindent <= indent ? -1 : increase
   endif
diff --git a/runtime/indent/html.vim b/runtime/indent/html.vim
index 828bc3120b..13adaae54c 100644
--- a/runtime/indent/html.vim
+++ b/runtime/indent/html.vim
@@ -749,7 +749,7 @@ func! s:CssPrevNonComment(lnum, stopline)
   while 1
     let ccol = match(getline(lnum), '\*/')
     if ccol < 0
-      " No comment end thus its something else.
+      " No comment end thus it's something else.
       return lnum
     endif
     call cursor(lnum, ccol + 1)
diff --git a/runtime/indent/liquid.vim b/runtime/indent/liquid.vim
index 01e7223696..f8e1c83079 100644
--- a/runtime/indent/liquid.vim
+++ b/runtime/indent/liquid.vim
@@ -1,7 +1,7 @@
 " Vim indent file
 " Language:     Liquid
 " Maintainer:   Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists('b:did_indent')
   finish
@@ -54,9 +54,10 @@ function! GetLiquidIndent(...)
   let line  = substitute(line,'\C^\%(\s*{%\s*end\w*\s*%}\)\+','','')
   let line .= matchstr(cline,'\C^\%(\s*{%\s*end\w*\s*%}\)\+')
   let cline = substitute(cline,'\C^\%(\s*{%\s*end\w*\s*%}\)\+','','')
-  let ind += &sw * s:count(line,'{%\s*\%(if\|elsif\|else\|unless\|ifchanged\|case\|when\|for\|empty\|tablerow\|capture\)\>')
-  let ind -= &sw * s:count(line,'{%\s*end\%(if\|unless\|ifchanged\|case\|for\|tablerow\|capture\)\>')
-  let ind -= &sw * s:count(cline,'{%\s*\%(elsif\|else\|when\|empty\)\>')
-  let ind -= &sw * s:count(cline,'{%\s*end\w*$')
+  let sw = exists('*shiftwidth') ? shiftwidth() : &sw
+  let ind += sw * s:count(line,'{%\s*\%(if\|elsif\|else\|unless\|ifchanged\|case\|when\|for\|empty\|tablerow\|capture\)\>')
+  let ind -= sw * s:count(line,'{%\s*end\%(if\|unless\|ifchanged\|case\|for\|tablerow\|capture\)\>')
+  let ind -= sw * s:count(cline,'{%\s*\%(elsif\|else\|when\|empty\)\>')
+  let ind -= sw * s:count(cline,'{%\s*end\w*$')
   return ind
 endfunction
diff --git a/runtime/indent/mf.vim b/runtime/indent/mf.vim
new file mode 100644
index 0000000000..88737f4e9f
--- /dev/null
+++ b/runtime/indent/mf.vim
@@ -0,0 +1,6 @@
+" METAFONT indent file
+" Language:    METAFONT
+" Maintainer:  Nicola Vitacolonna <nvitacolonna@gmail.com>
+" Last Change: 2016 Oct 1
+
+runtime! indent/mp.vim
diff --git a/runtime/indent/mp.vim b/runtime/indent/mp.vim
index a118eb8b60..86fa2539c1 100644
--- a/runtime/indent/mp.vim
+++ b/runtime/indent/mp.vim
@@ -1,56 +1,19 @@
 " MetaPost indent file
-" Language:	MetaPost
-" Maintainer:	Eugene Minkovskii <emin@mccme.ru>
-" Last Change:	2012 May 18
-" Version: 0.1
-" ==========================================================================
-
-" Identation Rules: {{{1
-" First of all, MetaPost language don't expect any identation rules.
-" This screept need for you only if you (not MetaPost) need to do
-" exactly code. If you don't need to use indentation, see
-" :help filetype-indent-off
-"
-" Note: Every rules of identation in MetaPost or TeX languages (and in some
-" other of course) is very subjective. I can release only my vision of this
-" promlem.
-"
-" ..........................................................................
-" Example of correct (by me) identation {{{2
-" shiftwidth=4
-" ==========================================================================
-" for i=0 upto 99:
-"     z[i] = (0,1u) rotated (i*360/100);
-" endfor
-" draw z0 -- z10 -- z20
-"         withpen ...     % <- 2sw because breaked line
-"         withcolor ...;  % <- same as previous
-" draw z0 for i=1 upto 99:
-"             -- z[i]             % <- 1sw from left end of 'for' satement
-"         endfor withpen ...      % <- 0sw from left end of 'for' satement
-"                 withcolor ...;  % <- 2sw because breaked line
-" draw if One:     % <- This is internal if (like 'for' above)
-"          one
-"      elsif Other:
-"          other
-"      fi withpen ...;
-" if one:          % <- This is external if
-"     draw one;
-" elseif other:
-"     draw other;
-" fi
-" draw z0; draw z1;
-" }}}
-" }}}
+" Language:           MetaPost
+" Maintainer:         Nicola Vitacolonna <nvitacolonna@gmail.com>
+" Former Maintainers: Eugene Minkovskii <emin@mccme.ru>
+" Last Change:        2016 Oct 2, 4:13pm
+" Version: 0.2
 
-" Only load this indent file when no other was loaded.
 if exists("b:did_indent")
   finish
 endif
 let b:did_indent = 1
 
 setlocal indentexpr=GetMetaPostIndent()
-setlocal indentkeys+=;,<:>,=if,=for,=def,=end,=else,=fi
+setlocal indentkeys+==end,=else,=fi,=fill,0),0]
+
+let b:undo_indent = "setl indentkeys< indentexpr<"
 
 " Only define the function once.
 if exists("*GetMetaPostIndent")
@@ -59,151 +22,337 @@ endif
 let s:keepcpo= &cpo
 set cpo&vim
 
-" Auxiliary Definitions: {{{1
-function! MetaNextNonblankNoncomment(pos)
-  " Like nextnonblank() but ignore comment lines
-  let tmp = nextnonblank(a:pos)
-  while tmp && getline(tmp) =~ '^\s*%'
-    let tmp = nextnonblank(tmp+1)
+function GetMetaPostIndent()
+  let ignorecase_save = &ignorecase
+  try
+    let &ignorecase = 0
+    return GetMetaPostIndentIntern()
+  finally
+    let &ignorecase = ignorecase_save
+  endtry
+endfunc
+
+" Regexps {{{
+" Note: the next three variables are made global so that a user may add
+" further keywords.
+"
+" Example:
+"
+"    Put these in ~/.vim/after/indent/mp.vim
+"
+"    let g:mp_open_tag .= '\|\<begintest\>'
+"    let g:mp_close_tag .= '\|\<endtest\>'
+
+" Expressions starting indented blocks
+let g:mp_open_tag = ''
+      \ . '\<if\>'
+      \ . '\|\<else\%[if]\>'
+      \ . '\|\<for\%(\|ever\|suffixes\)\>'
+      \ . '\|\<begingroup\>'
+      \ . '\|\<\%(\|var\|primary\|secondary\|tertiary\)def\>'
+      \ . '\|^\s*\<begin\%(fig\|graph\|glyph\|char\|logochar\)\>'
+      \ . '\|[([{]'
+
+" Expressions ending indented blocks
+let g:mp_close_tag = ''
+      \ . '\<fi\>'
+      \ . '\|\<else\%[if]\>'
+      \ . '\|\<end\%(\|for\|group\|def\|fig\|char\|glyph\|graph\)\>'
+      \ . '\|[)\]}]'
+
+" Statements that may span multiple lines and are ended by a semicolon. To
+" keep this list short, statements that are unlikely to be very long or are
+" not very common (e.g., keywords like `interim` or `showtoken`) are not
+" included.
+"
+" The regex for assignments and equations (the last branch) is tricky, because
+" it must not match things like `for i :=`, `if a=b`, `def...=`, etc... It is
+" not perfect, but it works reasonably well.
+let g:mp_statement = ''
+      \ . '\<\%(\|un\|cut\)draw\>'
+      \ . '\|\<\%(\|un\)fill\%[draw]\>'
+      \ . '\|\<draw\%(dbl\)\=arrow\>'
+      \ . '\|\<clip\>'
+      \ . '\|\<addto\>'
+      \ . '\|\<save\>'
+      \ . '\|\<setbounds\>'
+      \ . '\|\<message\>'
+      \ . '\|\<errmessage\>'
+      \ . '\|\<errhelp\>'
+      \ . '\|\<fontmapline\>'
+      \ . '\|\<pickup\>'
+      \ . '\|\<show\>'
+      \ . '\|\<special\>'
+      \ . '\|\<write\>'
+      \ . '\|\%(^\|;\)\%([^;=]*\%('.g:mp_open_tag.'\)\)\@!.\{-}:\=='
+
+" A line ends with zero or more spaces, possibly followed by a comment.
+let s:eol = '\s*\%($\|%\)'
+" }}}
+
+" Auxiliary functions {{{
+" Returns 1 if (0-based) position immediately preceding `pos` in `line` is
+" inside a string or a comment; returns 0 otherwise.
+
+" This is the function that is called more often when indenting, so it is
+" critical that it is efficient. The method we use is significantly faster
+" than using syntax attributes, and more general (it does not require
+" syntax_items). It is also faster than using a single regex matching an even
+" number of quotes. It helps that MetaPost strings cannot span more than one
+" line and cannot contain escaped quotes.
+function! s:CommentOrString(line, pos)
+  let in_string = 0
+  let q = stridx(a:line, '"')
+  let c = stridx(a:line, '%')
+  while q >= 0 && q < a:pos
+    if c >= 0 && c < q
+      if in_string " Find next percent symbol
+        let c = stridx(a:line, '%', q + 1)
+      else " Inside comment
+        return 1
+      endif
+    endif
+    let in_string = 1 - in_string
+    let q = stridx(a:line, '"', q + 1) " Find next quote
   endwhile
-  return tmp
+  return in_string || (c >= 0 && c <= a:pos)
 endfunction
 
-function! MetaPrevNonblankNoncomment(pos)
-  " Like prevnonblank() but ignore comment lines
-  let tmp = prevnonblank(a:pos)
-  while tmp && getline(tmp) =~ '^\s*%'
-    let tmp = prevnonblank(tmp-1)
+" Find the first non-comment non-blank line before the current line.
+function! s:PrevNonBlankNonComment(lnum)
+  let l:lnum = prevnonblank(a:lnum - 1)
+  while getline(l:lnum) =~# '^\s*%'
+    let l:lnum = prevnonblank(l:lnum - 1)
   endwhile
-  return tmp
+  return l:lnum
 endfunction
 
-function! MetaSearchNoncomment(pattern, ...)
-  " Like search() but ignore commented areas
-  if a:0
-    let flags = a:1
-  elseif &wrapscan
-    let flags = "w"
-  else
-    let flags = "W"
-  endif
-  let cl  = line(".")
-  let cc  = col(".")
-  let tmp = search(a:pattern, flags)
-  while tmp && synIDattr(synID(line("."), col("."), 1), "name") =~
-        \ 'm[fp]\(Comment\|TeXinsert\|String\)'
-    let tmp = search(a:pattern, flags)
+" Returns true if the last tag appearing in the line is an open tag; returns
+" false otherwise.
+function! s:LastTagIsOpen(line)
+  let o = s:LastValidMatchEnd(a:line, g:mp_open_tag, 0)
+  if o == - 1 | return v:false | endif
+  return s:LastValidMatchEnd(a:line, g:mp_close_tag, o) < 0
+endfunction
+
+" A simple, efficient and quite effective heuristics is used to test whether
+" a line should cause the next line to be indented: count the "opening tags"
+" (if, for, def, ...) in the line, count the "closing tags" (endif, endfor,
+" ...) in the line, and compute the difference. We call the result the
+" "weight" of the line. If the weight is positive, then the next line should
+" most likely be indented. Note that `else` and `elseif` are both opening and
+" closing tags, so they "cancel out" in almost all cases, the only exception
+" being a leading `else[if]`, which is counted as an opening tag, but not as
+" a closing tag (so that, for instance, a line containing a single `else:`
+" will have weight equal to one, not zero). We do not treat a trailing
+" `else[if]` in any special way, because lines ending with an open tag are
+" dealt with separately before this function is called (see
+" GetMetaPostIndentIntern()).
+"
+" Example:
+"
+"     forsuffixes $=a,b: if x.$ = y.$ : draw else: fill fi
+"       % This line will be indented because |{forsuffixes,if,else}| > |{else,fi}| (3 > 2)
+"     endfor
+
+function! s:Weight(line)
+  let [o, i] = [0, s:ValidMatchEnd(a:line, g:mp_open_tag, 0)]
+  while i > 0
+    let o += 1
+    let i = s:ValidMatchEnd(a:line, g:mp_open_tag, i)
+  endwhile
+  let [c, i] = [0, matchend(a:line, '^\s*\<else\%[if]\>')] " Skip a leading else[if]
+  let i = s:ValidMatchEnd(a:line, g:mp_close_tag, i)
+  while i > 0
+    let c += 1
+    let i = s:ValidMatchEnd(a:line, g:mp_close_tag, i)
+  endwhile
+  return o - c
+endfunction
+
+" Similar to matchend(), but skips strings and comments.
+" line: a String
+function! s:ValidMatchEnd(line, pat, start)
+  let i = matchend(a:line, a:pat, a:start)
+  while i > 0 && s:CommentOrString(a:line, i)
+    let i = matchend(a:line, a:pat, i)
+  endwhile
+  return i
+endfunction
+
+" Like s:ValidMatchEnd(), but returns the end position of the last (i.e.,
+" rightmost) match.
+function! s:LastValidMatchEnd(line, pat, start)
+  let last_found = -1
+  let i = matchend(a:line, a:pat, a:start)
+  while i > 0
+    if !s:CommentOrString(a:line, i)
+      let last_found = i
+    endif
+    let i = matchend(a:line, a:pat, i)
   endwhile
-  if !tmp
-    call cursor(cl,cc)
+  return last_found
+endfunction
+
+function! s:DecreaseIndentOnClosingTag(curr_indent)
+  let cur_text = getline(v:lnum)
+  if cur_text =~# '^\s*\%('.g:mp_close_tag.'\)'
+    return max([a:curr_indent - shiftwidth(), 0])
   endif
-  return tmp
+  return a:curr_indent
 endfunction
 " }}}
 
-function! GetMetaPostIndent()
-  " not indent in comment ???
-  if synIDattr(synID(line("."), col("."), 1), "name") =~
-        \ 'm[fp]\(Comment\|TeXinsert\|String\)'
+" Main function {{{
+"
+" Note: Every rule of indentation in MetaPost is very subjective. We might get
+" creative, but things get murky very soon (there are too many corner cases).
+" So, we provide a means for the user to decide what to do when this script
+" doesn't get it. We use a simple idea: use '%>', '%<' and '%=' to explicitly
+" control indentation. The '<' and '>' symbols may be repeated many times
+" (e.g., '%>>' will cause the next line to be indented twice).
+"
+" By using '%>...', '%<...' and '%=', the indentation the user wants is
+" preserved by commands like gg=G, even if it does not follow the rules of
+" this script.
+"
+" Example:
+"
+"    def foo =
+"        makepen(
+"            subpath(T-n,t) of r  %>
+"                shifted .5down   %>
+"                    --subpath(t,T) of r shifted .5up -- cycle   %<<<
+"        )
+"        withcolor black
+"    enddef
+"
+" The default indentation of the previous example would be:
+"
+"    def foo =
+"        makepen(
+"            subpath(T-n,t) of r
+"            shifted .5down
+"            --subpath(t,T) of r shifted .5up -- cycle
+"        )
+"        withcolor black
+"    enddef
+"
+" Personally, I prefer the latter, but anyway...
+function! GetMetaPostIndentIntern()
+  " Do not touch indentation inside verbatimtex/btex.. etex blocks.
+  if synIDattr(synID(v:lnum, 1, 1), "name") =~# '^mpTeXinsert$\|^tex\|^Delimiter'
     return -1
   endif
-  " Some RegExps: {{{1
-  " end_of_item: all of end by ';'
-  "            + all of end by :endfor, :enddef, :endfig, :endgroup, :fi
-  "            + all of start by :beginfig(num), :begingroup
-  "            + all of start by :for, :if, :else, :elseif and end by ':'
-  "            + all of start by :def, :vardef             and end by '='
-  let end_of_item = '\('                              .
-        \ ';\|'                                       .
-        \ '\<\(end\(for\|def\|fig\|group\)\|fi\)\>\|' .
-        \ '\<begin\(group\>\|fig\s*(\s*\d\+\s*)\)\|'  .
-        \ '\<\(for\|if\|else\(if\)\=\)\>.\+:\|'       .
-        \ '\<\(var\)\=def\>.\+='                      . '\)'
-  " }}}
-  " Save: current position {{{1
-  let cl = line   (".")
-  let cc = col    (".")
-  let cs = getline(".")
-  " if it is :beginfig or :endfig use zero indent
-  if  cs =~ '^\s*\(begin\|end\)fig\>'
-    return 0
-  endif
-  " }}}
-  " Initialise: ind variable {{{1
-  " search previous item not in current line
-  let p_semicol_l = MetaSearchNoncomment(end_of_item,"bW")
-  while p_semicol_l == cl
-    let p_semicol_l = MetaSearchNoncomment(end_of_item,"bW")
-  endwhile
-  " if this is first item in program use zero indent
-  if !p_semicol_l
+
+  " This is the reference line relative to which the current line is indented
+  " (but see below).
+  let lnum = s:PrevNonBlankNonComment(v:lnum)
+
+  " At the start of the file use zero indent.
+  if lnum == 0
     return 0
   endif
-  " if this is multiline item, remember first indent
-  if MetaNextNonblankNoncomment(p_semicol_l+1) < cl
-    let ind = indent(MetaNextNonblankNoncomment(p_semicol_l+1))
-  " else --- search pre-previous item for search first line in previous item
-  else
-    " search pre-previous item not in current line
-    let pp_semicol_l = MetaSearchNoncomment(end_of_item,"bW")
-    while pp_semicol_l == p_semicol_l
-      let pp_semicol_l = MetaSearchNoncomment(end_of_item,"bW")
-    endwhile
-    " if we find pre-previous item, remember indent of previous item
-    " else --- remember zero
-    if pp_semicol_l
-      let ind = indent(MetaNextNonblankNoncomment(line(".")+1))
-    else
-      let ind = 0
+
+  let prev_text = getline(lnum)
+
+  " User-defined overrides take precedence over anything else.
+  " See above for an example.
+  let j = match(prev_text, '%[<>=]')
+  if j > 0
+    let i = strlen(matchstr(prev_text, '%>\+', j)) - 1
+    if i > 0
+      return indent(lnum) + i * shiftwidth()
+    endif
+
+    let i = strlen(matchstr(prev_text, '%<\+', j)) - 1
+    if i > 0
+      return max([indent(lnum) - i * shiftwidth(), 0])
+    endif
+
+    if match(prev_text, '%=', j)
+      return indent(lnum)
     endif
   endif
-  " }}}
-  " Increase Indent: {{{1
-  " if it is an internal/external :for or :if statements {{{2
-  let pnn_s = getline(MetaPrevNonblankNoncomment(cl-1))
-  if  pnn_s =~ '\<\(for\|if\)\>.\+:\s*\($\|%\)'
-    let ind = match(pnn_s, '\<\(for\|if\)\>.\+:\s*\($\|%\)') + &sw
-  " }}}
-  " if it is a :def, :vardef, :beginfig, :begingroup, :else, :elseif {{{2
-  elseif pnn_s =~ '^\s*\('                       .
-        \ '\(var\)\=def\|'                       .
-        \ 'begin\(group\|fig\s*(\s*\d\+\s*)\)\|' .
-        \ 'else\(if\)\='                         . '\)\>'
-    let ind = ind + &sw
-  " }}}
-  " if it is a broken line {{{2
-  elseif pnn_s !~ end_of_item.'\s*\($\|%\)'
-    let ind = ind + (2 * &sw)
+
+  " If the reference line ends with an open tag, indent.
+  "
+  " Example:
+  "
+  " if c:
+  "     0
+  " else:
+  "     1
+  " fi if c2: % Note that this line has weight equal to zero.
+  "     ...   % This line will be indented
+  if s:LastTagIsOpen(prev_text)
+    return s:DecreaseIndentOnClosingTag(indent(lnum) + shiftwidth())
   endif
-  " }}}
-  " }}}
-  " Decrease Indent: {{{1
-  " if this is :endfor or :enddef statements {{{2
-  " this is correct because :def cannot be inside :for
-  if  cs  =~ '\<end\(for\|def\)\=\>'
-    call MetaSearchNoncomment('\<for\>.\+:\s*\($\|%\)' . '\|' .
-                            \ '^\s*\(var\)\=def\>',"bW")
-    if col(".") > 1
-      let ind = col(".") - 1
+
+  " Lines with a positive weight are unbalanced and should likely be indented.
+  "
+  " Example:
+  "
+  " def f = enddef for i = 1 upto 5: if x[i] > 0: 1 else: 2 fi
+  "     ... % This line will be indented (because of the unterminated `for`)
+  if s:Weight(prev_text) > 0
+    return s:DecreaseIndentOnClosingTag(indent(lnum) + shiftwidth())
+  endif
+
+  " Unterminated statements cause indentation to kick in.
+  "
+  " Example:
+  "
+  " draw unitsquare
+  "     withcolor black; % This line is indented because of `draw`.
+  " x := a + b + c
+  "     + d + e;         % This line is indented because of `:=`.
+  "
+  let i = s:LastValidMatchEnd(prev_text, g:mp_statement, 0)
+  if i >= 0 " Does the line contain a statement?
+    if s:ValidMatchEnd(prev_text, ';', i) < 0 " Is the statement unterminated?
+      return indent(lnum) + shiftwidth()
     else
-      let ind = indent(".")
+      return s:DecreaseIndentOnClosingTag(indent(lnum))
     endif
-  " }}}
-  " if this is :fi, :else, :elseif statements {{{2
-  elseif cs =~ '\<\(else\(if\)\=\|fi\)\>'
-    call MetaSearchNoncomment('\<if\>.\+:\s*\($\|%\)',"bW")
-    let ind = col(".") - 1
-  " }}}
-  " if this is :endgroup statement {{{2
-  elseif cs =~ '^\s*endgroup\>'
-    let ind = ind - &sw
   endif
-  " }}}
-  " }}}
 
-  return ind
+  " Deal with the special case of a statement spanning multiple lines. If the
+  " current reference line L ends with a semicolon, search backwards for
+  " another semicolon or a statement keyword. If the latter is found first,
+  " its line is used as the reference line for indenting the current line
+  " instead of L.
+  "
+  "  Example:
+  "
+  "  if cond:
+  "    draw if a: z0 else: z1 fi
+  "        shifted S
+  "        scaled T;      % L
+  "
+  "    for i = 1 upto 3:  % <-- Current line: this gets the same indent as `draw ...`
+  "
+  " NOTE: we get here only if L does not contain a statement (among those
+  " listed in g:mp_statement).
+  if s:ValidMatchEnd(prev_text, ';'.s:eol, 0) >= 0 " L ends with a semicolon
+    let stm_lnum = s:PrevNonBlankNonComment(lnum)
+    while stm_lnum > 0
+      let prev_text = getline(stm_lnum)
+      let sc_pos = s:LastValidMatchEnd(prev_text, ';', 0)
+      let stm_pos = s:ValidMatchEnd(prev_text, g:mp_statement, sc_pos)
+      if stm_pos > sc_pos
+        let lnum = stm_lnum
+        break
+      elseif sc_pos > stm_pos
+        break
+      endif
+      let stm_lnum = s:PrevNonBlankNonComment(stm_lnum)
+    endwhile
+  endif
+
+  return s:DecreaseIndentOnClosingTag(indent(lnum))
 endfunction
-"
+" }}}
 
 let &cpo = s:keepcpo
 unlet s:keepcpo
diff --git a/runtime/indent/ruby.vim b/runtime/indent/ruby.vim
index 095b3a43c6..a97f4828d6 100644
--- a/runtime/indent/ruby.vim
+++ b/runtime/indent/ruby.vim
@@ -13,12 +13,23 @@ if exists("b:did_indent")
 endif
 let b:did_indent = 1
 
+if !exists('g:ruby_indent_access_modifier_style')
+  " Possible values: "normal", "indent", "outdent"
+  let g:ruby_indent_access_modifier_style = 'normal'
+endif
+
+if !exists('g:ruby_indent_block_style')
+  " Possible values: "expression", "do"
+  let g:ruby_indent_block_style = 'expression'
+endif
+
 setlocal nosmartindent
 
 " Now, set up our indentation expression and keys that trigger it.
 setlocal indentexpr=GetRubyIndent(v:lnum)
-setlocal indentkeys=0{,0},0),0],!^F,o,O,e
+setlocal indentkeys=0{,0},0),0],!^F,o,O,e,:,.
 setlocal indentkeys+==end,=else,=elsif,=when,=ensure,=rescue,==begin,==end
+setlocal indentkeys+==private,=protected,=public
 
 " Only define the function once.
 if exists("*GetRubyIndent")
@@ -34,7 +45,7 @@ set cpo&vim
 " Regex of syntax group names that are or delimit strings/symbols or are comments.
 let s:syng_strcom = '\<ruby\%(Regexp\|RegexpDelimiter\|RegexpEscape' .
       \ '\|Symbol\|String\|StringDelimiter\|StringEscape\|ASCIICode' .
-      \ '\|Interpolation\|NoInterpolation\|Comment\|Documentation\)\>'
+      \ '\|Interpolation\|InterpolationDelimiter\|NoInterpolation\|Comment\|Documentation\)\>'
 
 " Regex of syntax group names that are strings.
 let s:syng_string =
@@ -49,9 +60,10 @@ let s:skip_expr =
       \ "synIDattr(synID(line('.'),col('.'),1),'name') =~ '".s:syng_strcom."'"
 
 " Regex used for words that, at the start of a line, add a level of indent.
-let s:ruby_indent_keywords = '^\s*\zs\<\%(module\|class\|def\|if\|for' .
-      \ '\|while\|until\|else\|elsif\|case\|when\|unless\|begin\|ensure' .
-      \ '\|rescue\):\@!\>' .
+let s:ruby_indent_keywords =
+      \ '^\s*\zs\<\%(module\|class\|if\|for' .
+      \   '\|while\|until\|else\|elsif\|case\|when\|unless\|begin\|ensure\|rescue' .
+      \   '\|\%(public\|protected\|private\)\=\s*def\):\@!\>' .
       \ '\|\%([=,*/%+-]\|<<\|>>\|:\s\)\s*\zs' .
       \    '\<\%(if\|for\|while\|until\|case\|unless\|begin\):\@!\>'
 
@@ -64,7 +76,8 @@ let s:ruby_deindent_keywords =
 " TODO: the do here should be restricted somewhat (only at end of line)?
 let s:end_start_regex =
       \ '\C\%(^\s*\|[=,*/%+\-|;{]\|<<\|>>\|:\s\)\s*\zs' .
-      \ '\<\%(module\|class\|def\|if\|for\|while\|until\|case\|unless\|begin\):\@!\>' .
+      \ '\<\%(module\|class\|if\|for\|while\|until\|case\|unless\|begin' .
+      \   '\|\%(public\|protected\|private\)\=\s*def\):\@!\>' .
       \ '\|\%(^\|[^.:@$]\)\@<=\<do:\@!\>'
 
 " Regex that defines the middle-match for the 'end' keyword.
@@ -79,19 +92,39 @@ let s:end_skip_expr = s:skip_expr .
       \ ' && getline(".") =~ "^\\s*\\<\\(while\\|until\\|for\\):\\@!\\>")'
 
 " Regex that defines continuation lines, not including (, {, or [.
-let s:non_bracket_continuation_regex = '\%([\\.,:*/%+]\|\<and\|\<or\|\%(<%\)\@<![=-]\|\W[|&?]\|||\|&&\)\s*\%(#.*\)\=$'
+let s:non_bracket_continuation_regex =
+      \ '\%([\\.,:*/%+]\|\<and\|\<or\|\%(<%\)\@<![=-]\|:\@<![^[:alnum:]:][|&?]\|||\|&&\)\s*\%(#.*\)\=$'
 
 " Regex that defines continuation lines.
-" TODO: this needs to deal with if ...: and so on
 let s:continuation_regex =
-      \ '\%(%\@<![({[\\.,:*/%+]\|\<and\|\<or\|\%(<%\)\@<![=-]\|\W[|&?]\|||\|&&\)\s*\%(#.*\)\=$'
+      \ '\%(%\@<![({[\\.,:*/%+]\|\<and\|\<or\|\%(<%\)\@<![=-]\|:\@<![^[:alnum:]:][|&?]\|||\|&&\)\s*\%(#.*\)\=$'
+
+" Regex that defines continuable keywords
+let s:continuable_regex =
+      \ '\C\%(^\s*\|[=,*/%+\-|;{]\|<<\|>>\|:\s\)\s*\zs' .
+      \ '\<\%(if\|for\|while\|until\|unless\):\@!\>'
 
 " Regex that defines bracket continuations
 let s:bracket_continuation_regex = '%\@<!\%([({[]\)\s*\%(#.*\)\=$'
 
+" Regex that defines dot continuations
+let s:dot_continuation_regex = '%\@<!\.\s*\%(#.*\)\=$'
+
+" Regex that defines backslash continuations
+let s:backslash_continuation_regex = '%\@<!\\\s*$'
+
+" Regex that defines end of bracket continuation followed by another continuation
+let s:bracket_switch_continuation_regex = '^\([^(]\+\zs).\+\)\+'.s:continuation_regex
+
 " Regex that defines the first part of a splat pattern
 let s:splat_regex = '[[,(]\s*\*\s*\%(#.*\)\=$'
 
+" Regex that describes all indent access modifiers
+let s:access_modifier_regex = '\C^\s*\%(public\|protected\|private\)\s*\%(#.*\)\=$'
+
+" Regex that describes the indent access modifiers (excludes public)
+let s:indent_access_modifier_regex = '\C^\s*\%(protected\|private\)\s*\%(#.*\)\=$'
+
 " Regex that defines blocks.
 "
 " Note that there's a slight problem with this regex and s:continuation_regex.
@@ -102,10 +135,13 @@ let s:splat_regex = '[[,(]\s*\*\s*\%(#.*\)\=$'
 " The reason is that the pipe matches a hanging "|" operator.
 "
 let s:block_regex =
-      \ '\%(\<do:\@!\>\|%\@<!{\)\s*\%(|\s*(*\s*\%([*@&]\=\h\w*,\=\s*\)\%(,\s*(*\s*[*@&]\=\h\w*\s*)*\s*\)*|\)\=\s*\%(#.*\)\=$'
+      \ '\%(\<do:\@!\>\|%\@<!{\)\s*\%(|[^|]*|\)\=\s*\%(#.*\)\=$'
 
 let s:block_continuation_regex = '^\s*[^])}\t ].*'.s:block_regex
 
+" Regex that describes a leading operator (only a method call's dot for now)
+let s:leading_operator_regex = '^\s*[.]'
+
 " 2. Auxiliary Functions {{{1
 " ======================
 
@@ -165,7 +201,21 @@ function s:GetMSL(lnum)
     " Otherwise, terminate search as we have found our MSL already.
     let line = getline(lnum)
 
-    if s:Match(lnum, s:splat_regex)
+    if !s:Match(msl, s:backslash_continuation_regex) &&
+          \ s:Match(lnum, s:backslash_continuation_regex)
+      " If the current line doesn't end in a backslash, but the previous one
+      " does, look for that line's msl
+      "
+      " Example:
+      "   foo = "bar" \
+      "     "baz"
+      "
+      let msl = lnum
+    elseif s:Match(msl, s:leading_operator_regex)
+      " If the current line starts with a leading operator, keep its indent
+      " and keep looking for an MSL.
+      let msl = lnum
+    elseif s:Match(lnum, s:splat_regex)
       " If the above line looks like the "*" of a splat, use the current one's
       " indentation.
       "
@@ -175,7 +225,7 @@ function s:GetMSL(lnum)
       "       something
       "
       return msl
-    elseif s:Match(line, s:non_bracket_continuation_regex) &&
+    elseif s:Match(lnum, s:non_bracket_continuation_regex) &&
           \ s:Match(msl, s:non_bracket_continuation_regex)
       " If the current line is a non-bracket continuation and so is the
       " previous one, keep its indent and continue looking for an MSL.
@@ -186,6 +236,18 @@ function s:GetMSL(lnum)
       "     three
       "
       let msl = lnum
+    elseif s:Match(lnum, s:dot_continuation_regex) &&
+          \ (s:Match(msl, s:bracket_continuation_regex) || s:Match(msl, s:block_continuation_regex))
+      " If the current line is a bracket continuation or a block-starter, but
+      " the previous is a dot, keep going to see if the previous line is the
+      " start of another continuation.
+      "
+      " Example:
+      "   parent.
+      "     method_call {
+      "     three
+      "
+      let msl = lnum
     elseif s:Match(lnum, s:non_bracket_continuation_regex) &&
           \ (s:Match(msl, s:bracket_continuation_regex) || s:Match(msl, s:block_continuation_regex))
       " If the current line is a bracket continuation or a block-starter, but
@@ -299,18 +361,39 @@ function s:ExtraBrackets(lnum)
 endfunction
 
 function s:Match(lnum, regex)
-  let col = match(getline(a:lnum), '\C'.a:regex) + 1
-  return col > 0 && !s:IsInStringOrComment(a:lnum, col) ? col : 0
+  let line   = getline(a:lnum)
+  let offset = match(line, '\C'.a:regex)
+  let col    = offset + 1
+
+  while offset > -1 && s:IsInStringOrComment(a:lnum, col)
+    let offset = match(line, '\C'.a:regex, offset + 1)
+    let col = offset + 1
+  endwhile
+
+  if offset > -1
+    return col
+  else
+    return 0
+  endif
 endfunction
 
-function s:MatchLast(lnum, regex)
-  let line = getline(a:lnum)
-  let col = match(line, '.*\zs' . a:regex)
-  while col != -1 && s:IsInStringOrComment(a:lnum, col)
-    let line = strpart(line, 0, col)
-    let col = match(line, '.*' . a:regex)
+" Locates the containing class/module's definition line, ignoring nested classes
+" along the way.
+"
+function! s:FindContainingClass()
+  let saved_position = getpos('.')
+
+  while searchpair(s:end_start_regex, s:end_middle_regex, s:end_end_regex, 'bW',
+        \ s:end_skip_expr) > 0
+    if expand('<cword>') =~# '\<class\|module\>'
+      let found_lnum = line('.')
+      call setpos('.', saved_position)
+      return found_lnum
+    endif
   endwhile
-  return col + 1
+
+  call setpos('.', saved_position)
+  return 0
 endfunction
 
 " 3. GetRubyIndent Function {{{1
@@ -320,6 +403,13 @@ function GetRubyIndent(...)
   " 3.1. Setup {{{2
   " ----------
 
+  " The value of a single shift-width
+  if exists('*shiftwidth')
+    let sw = shiftwidth()
+  else
+    let sw = &sw
+  endif
+
   " For the current line, use the first argument if given, else v:lnum
   let clnum = a:0 ? a:1 : v:lnum
 
@@ -333,6 +423,24 @@ function GetRubyIndent(...)
   let line = getline(clnum)
   let ind = -1
 
+  " If this line is an access modifier keyword, align according to the closest
+  " class declaration.
+  if g:ruby_indent_access_modifier_style == 'indent'
+    if s:Match(clnum, s:access_modifier_regex)
+      let class_line = s:FindContainingClass()
+      if class_line > 0
+        return indent(class_line) + sw
+      endif
+    endif
+  elseif g:ruby_indent_access_modifier_style == 'outdent'
+    if s:Match(clnum, s:access_modifier_regex)
+      let class_line = s:FindContainingClass()
+      if class_line > 0
+        return indent(class_line)
+      endif
+    endif
+  endif
+
   " 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.
@@ -343,7 +451,9 @@ function GetRubyIndent(...)
     if searchpair(escape(bs[0], '\['), '', bs[1], 'bW', s:skip_expr) > 0
       if line[col-1]==')' && col('.') != col('$') - 1
         let ind = virtcol('.') - 1
-      else
+      elseif g:ruby_indent_block_style == 'do'
+        let ind = indent(line('.'))
+      else " g:ruby_indent_block_style == 'expression'
         let ind = indent(s:GetMSL(line('.')))
       endif
     endif
@@ -366,10 +476,17 @@ function GetRubyIndent(...)
 
       if strpart(line, 0, col('.') - 1) =~ '=\s*$' &&
             \ strpart(line, col('.') - 1, 2) !~ 'do'
+        " assignment to case/begin/etc, on the same line, hanging indent
         let ind = virtcol('.') - 1
+      elseif g:ruby_indent_block_style == 'do'
+        " align to line of the "do", not to the MSL
+        let ind = indent(line('.'))
       elseif getline(msl) =~ '=\s*\(#.*\)\=$'
+        " in the case of assignment to the MSL, align to the starting line,
+        " not to the MSL
         let ind = indent(line('.'))
       else
+        " align to the MSL
         let ind = indent(msl)
       endif
     endif
@@ -389,6 +506,11 @@ function GetRubyIndent(...)
     return 0
   endif
 
+  " If the current line starts with a leading operator, add a level of indent.
+  if s:Match(clnum, s:leading_operator_regex)
+    return indent(s:GetMSL(clnum)) + sw
+  endif
+
   " 3.3. Work on the previous line. {{{2
   " -------------------------------
 
@@ -409,14 +531,50 @@ function GetRubyIndent(...)
   let line = getline(lnum)
   let ind = indent(lnum)
 
+  if g:ruby_indent_access_modifier_style == 'indent'
+    " If the previous line was a private/protected keyword, add a
+    " level of indent.
+    if s:Match(lnum, s:indent_access_modifier_regex)
+      return indent(lnum) + sw
+    endif
+  elseif g:ruby_indent_access_modifier_style == 'outdent'
+    " If the previous line was a private/protected/public keyword, add
+    " a level of indent, since the keyword has been out-dented.
+    if s:Match(lnum, s:access_modifier_regex)
+      return indent(lnum) + sw
+    endif
+  endif
+
+  if s:Match(lnum, s:continuable_regex) && s:Match(lnum, s:continuation_regex)
+    return indent(s:GetMSL(lnum)) + sw + sw
+  endif
+
   " 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)) + &sw
+    let msl = s:GetMSL(lnum)
+
+    if g:ruby_indent_block_style == 'do'
+      " don't align to the msl, align to the "do"
+      let ind = indent(lnum) + sw
+    elseif getline(msl) =~ '=\s*\(#.*\)\=$'
+      " in the case of assignment to the msl, align to the starting line,
+      " not to the msl
+      let ind = indent(lnum) + sw
+    else
+      let ind = indent(msl) + sw
+    endif
+    return ind
+  endif
+
+  " If the previous line started with a leading operator, use its MSL's level
+  " of indent
+  if s:Match(lnum, s:leading_operator_regex)
+    return indent(s:GetMSL(lnum))
   endif
 
   " If the previous line ended with the "*" of a splat, add a level of indent
   if line =~ s:splat_regex
-    return indent(lnum) + &sw
+    return indent(lnum) + sw
   endif
 
   " If the previous line contained unclosed opening brackets and we are still
@@ -431,22 +589,22 @@ function GetRubyIndent(...)
     if opening.pos != -1
       if opening.type == '(' && searchpair('(', '', ')', 'bW', s:skip_expr) > 0
         if col('.') + 1 == col('$')
-          return ind + &sw
+          return ind + sw
         else
           return virtcol('.')
         endif
       else
         let nonspace = matchend(line, '\S', opening.pos + 1) - 1
-        return nonspace > 0 ? nonspace : ind + &sw
+        return nonspace > 0 ? nonspace : ind + sw
       endif
     elseif closing.pos != -1
       call cursor(lnum, closing.pos + 1)
       normal! %
 
       if s:Match(line('.'), s:ruby_indent_keywords)
-        return indent('.') + &sw
+        return indent('.') + sw
       else
-        return indent('.')
+        return indent(s:GetMSL(line('.')))
       endif
     else
       call cursor(clnum, vcol)
@@ -473,7 +631,7 @@ function GetRubyIndent(...)
   let col = s:Match(lnum, s:ruby_indent_keywords)
   if col > 0
     call cursor(lnum, col)
-    let ind = virtcol('.') - 1 + &sw
+    let ind = virtcol('.') - 1 + sw
     " TODO: make this better (we need to count them) (or, if a searchpair
     " fails, we know that something is lacking an end and thus we indent a
     " level
@@ -490,10 +648,14 @@ function GetRubyIndent(...)
   let p_lnum = lnum
   let lnum = s:GetMSL(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 the previous line wasn't a MSL.
   if p_lnum != lnum
-    if s:Match(p_lnum, s:non_bracket_continuation_regex) || s:IsInString(p_lnum,strlen(line))
+    " If previous line ends bracket and begins non-bracket continuation decrease indent by 1.
+    if s:Match(p_lnum, s:bracket_switch_continuation_regex)
+      return ind - 1
+    " If previous line is a continuation return its indent.
+    " TODO: the || s:IsInString() thing worries me a bit.
+    elseif s:Match(p_lnum, s:non_bracket_continuation_regex) || s:IsInString(p_lnum,strlen(line))
       return ind
     endif
   endif
@@ -506,9 +668,9 @@ function GetRubyIndent(...)
   " TODO: this does not take into account contrived things such as
   " module Foo; class Bar; end
   if s:Match(lnum, s:ruby_indent_keywords)
-    let ind = msl_ind + &sw
+    let ind = msl_ind + sw
     if s:Match(lnum, s:end_end_regex)
-      let ind = ind - &sw
+      let ind = ind - sw
     endif
     return ind
   endif
@@ -517,7 +679,7 @@ function GetRubyIndent(...)
   " closing bracket, indent one extra level.
   if s:Match(lnum, s:non_bracket_continuation_regex) && !s:Match(lnum, '^\s*\([\])}]\|end\)')
     if lnum == p_lnum
-      let ind = msl_ind + &sw
+      let ind = msl_ind + sw
     else
       let ind = msl_ind
     endif
diff --git a/runtime/indent/sass.vim b/runtime/indent/sass.vim
index b6e2e66e8a..d87b371fdd 100644
--- a/runtime/indent/sass.vim
+++ b/runtime/indent/sass.vim
@@ -1,7 +1,7 @@
 " Vim indent file
 " Language:	Sass
 " Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
-" Last Change:	2013 May 30
+" Last Change:	2016 Aug 29
 
 if exists("b:did_indent")
   finish
@@ -29,9 +29,7 @@ function! GetSassIndent()
   let indent = indent(lnum)
   let cindent = indent(v:lnum)
   if line !~ s:property && line !~ s:extend && cline =~ s:property
-    return indent + &sw
-  "elseif line =~ s:property && cline !~ s:property
-    "return indent - &sw
+    return indent + (exists('*shiftwidth') ? shiftwidth() : &sw)
   else
     return -1
   endif