ind updates (#593)

Author: bounceme

indent/javascript.vim

@@ -2,7 +2,7 @@
 " Language: Javascript
 " Maintainer: vim-javascript community
 " URL: https://github.com/pangloss/vim-javascript
-" Last Change: August 2, 2016
+" Last Change: August 6, 2016
 
 " Only load this indent file when no other was loaded.
 if exists("b:did_indent")
@@ -88,7 +88,7 @@ endfunction
 
 " Check if the character at lnum:col is inside a string, comment, or is ascii.
 function s:IsSyn(lnum, col, reg)
-  return synIDattr(synID(a:lnum, a:col, 1), 'name') =~? (a:reg != '' ? a:reg : s:syng_strcom)
+  return synIDattr(synID(a:lnum, a:col, 0), 'name') =~? (a:reg != '' ? a:reg : s:syng_strcom)
 endfunction
 
 " Find line above 'lnum' that isn't empty, in a comment, or in a string.
@@ -104,7 +104,7 @@ function s:PrevCodeLine(lnum)
 endfunction
 
 " Check if line 'lnum' has more opening brackets than closing ones.
-function s:LineHasOpeningBrackets(lnum)
+function s:Balanced(lnum)
   let open_0 = 0
   let open_2 = 0
   let open_4 = 0
@@ -121,8 +121,7 @@ function s:LineHasOpeningBrackets(lnum)
     endif
     let pos = match(line, '[][(){}]', pos + 1)
   endwhile
-  return (open_0 > 0 ? 1 : (open_0 == 0 ? 0 : 2)) . (open_2 > 0 ? 1 : (open_2 == 0 ? 0 : 2)) .
-        \ (open_4 > 0 ? 1 : (open_4 == 0 ? 0 : 2))
+  return (!open_4 + !open_2 + !open_0) - 2
 endfunction
 " }}}
 
@@ -160,19 +159,16 @@ function GetJavascriptIndent()
   " the containing paren, bracket, curly. Memoize, last lineNr either has the
   " same scope or starts a new one, unless if it closed a scope.
   call cursor(v:lnum,1)
-  let pcounts = [0]
   if b:js_cache[0] >= lnum  && b:js_cache[0] <= v:lnum && b:js_cache[0] &&
-        \ (b:js_cache[0] > lnum || map(pcounts,'s:LineHasOpeningBrackets(lnum)')[0] !~ '2')
-    let num = pcounts[0] =~ '1' ? s:lookForParens('[({[]','[])}]','bW',2000) : b:js_cache[1]
-  else
+        \ (b:js_cache[0] > lnum || s:Balanced(lnum) > 0)
+    let num = b:js_cache[1]
+  elseif line[0] =~ '\s'
     let syns = synIDattr(synID(v:lnum, 1, 1), 'name')
-    if line[0] =~ '\s' && syns != ''
-      let pattern = syns =~? 'funcblock' ? ['{','}'] : syns =~? 'jsparen' ? ['(',')'] : syns =~? 'jsbracket'? ['\[','\]'] :
-            \ ['[({[]','[])}]']
-      let num = s:lookForParens(pattern[0],pattern[1],'bW',2000)
-    else
-      let num = s:lookForParens('[({[]','[])}]','bW',2000)
-    endif
+    let pattern = syns =~? 'block' ? ['{','}'] : syns =~? 'jsparen' ? ['(',')'] :
+          \ syns =~? 'jsbracket'? ['\[','\]'] : ['[({[]','[])}]']
+    let num = s:lookForParens(pattern[0],pattern[1],'bW',2000)
+  else
+    let num = s:lookForParens('[({[]','[])}]','bW',2000)
   endif
   let b:js_cache = [v:lnum,num,line('.') == v:lnum ? b:js_cache[2] : col('.')]