diff --git a/indent/typescript.vim b/indent/typescript.vim
index 824d47e..bada7cb 100644
--- a/indent/typescript.vim
+++ b/indent/typescript.vim
@@ -16,7 +16,7 @@ setlocal nosmartindent
 " Now, set up our indentation expression and keys that trigger it.
 setlocal indentexpr=GetTypescriptIndent()
 setlocal formatexpr=Fixedgq(v:lnum,v:count)
-setlocal indentkeys=0{,0},0),0],0\,,!^F,o,O,e
+setlocal indentkeys=0{,0},0),0],0\,:,!^F,o,O,e
 
 " Only define the function once.
 if exists("*GetTypescriptIndent")
@@ -26,11 +26,22 @@ endif
 let s:cpo_save = &cpo
 set cpo&vim
 
+" Get shiftwidth value
+if exists('*shiftwidth')
+  func s:sw()
+    return shiftwidth()
+  endfunc
+else
+  func s:sw()
+    return &sw
+  endfunc
+endif
+
 " 1. Variables {{{1
 " ============
 
-let s:ts_keywords = '^\s*\(break\|case\|catch\|continue\|debugger\|default\|delete\|do\|else\|finally\|for\|function\|if\|in\|instanceof\|new\|return\|switch\|this\|throw\|try\|typeof\|var\|void\|while\|with\)'
-
+let s:ts_keywords = '^\s*\(break\|catch\|case\|continue\|debugger\|default\|delete\|do\|else\|finally\|for\|function\|if\|in\|instanceof\|let\|new\|return\|switch\|this\|throw\|try\|typeof\|var\|void\|while\|with\)'
+let s:expr_case = '^\s*\(case\s\+[^\:]*\|default\)\s*:\s*'
 " Regex of syntax group names that are or delimit string or are comments.
 let s:syng_strcom = 'string\|regex\|comment\c'
 
@@ -49,18 +60,20 @@ let s:skip_expr = "synIDattr(synID(line('.'),col('.'),1),'name') =~ '".s:syng_st
 let s:line_term = '\s*\%(\%(\/\/\).*\)\=$'
 
 " Regex that defines continuation lines, not including (, {, or [.
-let s:continuation_regex = '\%([\\*+/.:]\|\%(<%\)\@<![=-]\|\W[|&?]\|||\|&&\|[^=]=[^=].*,\)' . s:line_term
+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 = s:continuation_regex
+let s:msl_regex = s:continuation_regex.'\|'.s:expr_case
 
-let s:one_line_scope_regex = '\<\%(if\|else\|for\|while\)\>[^{;]*' . s:line_term
+let s:one_line_scope_regex = '\%(\%(\<else\>\|\<\%(if\|for\|while\)\>\s*(.*)\)\|=>\)' . s:line_term
 
 " Regex that defines blocks.
-let s:block_regex = '\%([{[]\)\s*\%(|\%([*@]\=\h\w*,\=\s*\)\%(,\s*[*@]\=\h\w*\)*|\)\=' . s:line_term
+let s:block_regex = '\%([{([]\)\s*\%(|\%([*@]\=\h\w*,\=\s*\)\%(,\s*[*@]\=\h\w*\)*|\)\=' . s:line_term
 
-let s:var_stmt = '^\s*var'
+let s:operator_first = '^\s*\%([-*/+.:?]\|||\|&&\)'
+
+let s:var_stmt = '^\s*\%(const\|let\|var\)'
 
 let s:comma_first = '^\s*,'
 let s:comma_last = ',\s*$'
@@ -68,6 +81,16 @@ let s:comma_last = ',\s*$'
 let s:ternary = '^\s\+[?|:]'
 let s:ternary_q = '^\s\+?'
 
+let s:case_indent = s:sw()
+let s:case_indent_after = s:sw()
+let s:m = matchlist(&cinoptions, ':\(.\)')
+if (len(s:m) > 2)
+    let s:case_indent = s:m[1]
+endif
+let s:m = matchlist(&cinoptions, '=\(.\)')
+if (len(s:m) > 2)
+    let s:case_indent_after = s:m[1]
+endif
 " 2. Auxiliary Functions {{{1
 " ======================
 
@@ -191,9 +214,9 @@ function s:GetVarIndent(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
+      return indent(prev_lnum) - s:sw()
     else
-      return indent(lvar) + &sw
+      return indent(lvar) + s:sw()
     endif
   endif
 
@@ -219,7 +242,7 @@ function s:LineHasOpeningBrackets(lnum)
     endif
     let pos = match(line, '[][(){}]', pos + 1)
   endwhile
-  return (open_0 > 0) . (open_2 > 0) . (open_4 > 0)
+  return (open_0 > 0 ? 1 : (open_0 == 0 ? 0 : 2)) . (open_2 > 0) . (open_4 > 0)
 endfunction
 
 function s:Match(lnum, regex)
@@ -300,6 +323,17 @@ function GetTypescriptIndent()
   " previous nonblank line number
   let prevline = prevnonblank(v:lnum - 1)
 
+  if (line =~ s:expr_case)
+    if (getline(prevline) =~ s:expr_case)
+      return indent(prevline)
+    else
+      if (getline(prevline) =~ s:block_regex)
+        return indent(prevline) + s:case_indent
+      else
+        return indent(prevline) - s:case_indent_after
+      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.
@@ -321,7 +355,7 @@ function GetTypescriptIndent()
           return indent(prevline)
         " otherwise we indent 1 level
         else
-          return indent(lvar) + &sw
+          return indent(lvar) + s:sw()
         endif
       endif
     endif
@@ -340,16 +374,37 @@ function GetTypescriptIndent()
 
   " If the line is comma first, dedent 1 level
   if (getline(prevline) =~ s:comma_first)
-    return indent(prevline) - &sw
+    return indent(prevline) - s:sw()
+  endif
+  if (getline(prevline) =~ s:expr_case)
+    return indent(prevline) + s:case_indent_after
   endif
 
-  if (line =~ s:ternary)
-    if (getline(prevline) =~ s:ternary_q)
+  " If line starts with operator...
+  if (s:Match(v:lnum, s:operator_first))
+    if (s:Match(prevline, s:operator_first))
+      " and so does previous line, don't indent
       return indent(prevline)
-    else
-      return indent(prevline) + &sw
-    endif
-  endif
+    end
+    let counts = s:LineHasOpeningBrackets(prevline)
+    if counts[0] == '2'
+      call cursor(prevline, 1)
+      " Search for the opening tag
+      let mnum = searchpair('(', '', ')', 'bW', s:skip_expr)
+      if mnum > 0 && s:Match(mnum, s:operator_first)
+        return indent(mnum)
+      end
+    elseif counts[0] != '1' && counts[1] != '1' && counts[2] != '1'
+      " otherwise, indent 1 level
+      return indent(prevline) + s:sw()
+    end
+    " If previous line starts with a operator...
+  elseif s:Match(prevline, s:operator_first) && !s:Match(prevline, s:comma_last)
+    let countscur = s:LineHasOpeningBrackets(v:lnum)
+    if countscur[0] != '2'
+      return indent(prevline) - s:sw()
+    end
+  end
 
   " If we are in a multi-line comment, cindent does the right thing.
   if s:IsInMultilineComment(v:lnum, 1) && !s:IsLineComment(v:lnum, 1)
@@ -385,48 +440,64 @@ function GetTypescriptIndent()
     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
+    if (line =~ s:expr_case)
+      return indent(s:GetMSL(lnum, 0)) + s:sw()/2
+    else
+      return indent(s:GetMSL(lnum, 0)) + s:sw()
+    endif
   endif
 
+  " Set up variables for current line.
+  let line = getline(lnum)
+  let ind = indent(lnum)
   " 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
+        return ind + s:sw()
       else
         return virtcol('.')
       endif
     elseif counts[1] == '1' || counts[2] == '1'
-      return ind + &sw
+      return ind + s:sw()
     else
       call cursor(v:lnum, vcol)
     end
-  endif
+  elseif line =~ ')' || line =~ s:comma_last
+    let counts = s:LineHasOpeningBrackets(lnum)
+    if counts[0] == '2'
+      call cursor(lnum, 1)
+      " Search for the opening tag
+      let mnum = searchpair('(', '', ')', 'bW', s:skip_expr)
+      if mnum > 0
+        return indent(s:GetMSL(mnum, 0)) 
+      end
+    elseif  line !~ s:var_stmt
+      return indent(prevline)
+    end
+  end
 
   " 3.4. Work on the MSL line. {{{2
   " --------------------------
 
   let ind_con = ind
-  let ind = s:IndentWithContinuation(lnum, ind_con, &sw)
+  let ind = s:IndentWithContinuation(lnum, ind_con, s:sw())
 
   " }}}2
   "
   "
   let ols = s:InOneLineScope(lnum)
   if ols > 0
-    let ind = ind + &sw
+    let ind = ind + s:sw()
   else
     let ols = s:ExitingOneLineScope(lnum)
     while ols > 0 && ind > 0
-      let ind = ind - &sw
+      let ind = ind - s:sw()
       let ols = s:InOneLineScope(ols - 1)
     endwhile
   endif
@@ -440,7 +511,7 @@ let &cpo = s:cpo_save
 unlet s:cpo_save
 
 function! Fixedgq(lnum, count)
-    let l:tw = &tw ? &tw : 80
+    let l:tw = &tw ? &tw : 80;
 
     let l:count = a:count
     let l:first_char = indent(a:lnum) + 1