--- a/runtime/ftplugin/ruby.vim
+++ b/runtime/ftplugin/ruby.vim
@@ -30,28 +30,21 @@ endif
 if exists("loaded_matchit") && !exists("b:match_words")
   let b:match_ignorecase = 0
 
- " TODO: improve optional do loops
   let b:match_words =
-	\ '\%(' .
-	\     '\%(\%(\.\|\:\:\)\s*\|\:\)\@<!\<\%(class\|module\|begin\|def\|case\|for\|do\)\>' .
-	\   '\|' .
-	\     '\%(\%(^\|\.\.\.\=\|[{\:\,;([<>~\*/%&^|+-]\|\%(\<[_[\:lower\:]][_[\:alnum\:]]*\)\@<![!=?]\)\s*\)\@<=\%(if\|unless\|while\|until\)\>' .
-	\ '\)' .
+	\ '\<\%(if\|unless\|case\|while\|until\|for\|do\|class\|module\|def\|begin\)\>=\@!' .
 	\ ':' .
-	\ '\%(' .
-	\     '\%(\%(\.\|\:\:\)\s*\|\:\)\@<!\<\%(else\|elsif\|ensure\|when\)\>' .
-	\   '\|' .
-	\     '\%(\%(^\|;\)\s*\)\@<=\<rescue\>' .
-	\ '\)' .
+	\ '\<\%(else\|elsif\|ensure\|when\|rescue\|break\|redo\|next\|retry\)\>' .
 	\ ':' .
-	\ '\%(\%(\.\|\:\:\)\s*\|\:\)\@<!\<end\>' .
+	\ '\<end\>' .
 	\ ',{:},\[:\],(:)'
 
   let b:match_skip =
 	\ "synIDattr(synID(line('.'),col('.'),0),'name') =~ '" .
-	\ "\\<ruby\\%(String\\|StringDelimiter\\|ASCIICode\\|Interpolation\\|" .
-	\ "NoInterpolation\\|Escape\\|Comment\\|Documentation\\)\\>'"
-
+	\ "\\<ruby\\%(String\\|StringDelimiter\\|ASCIICode\\|Escape\\|" .
+	\ "Interpolation\\|NoInterpolation\\|Comment\\|Documentation\\|" .
+	\ "ConditionalModifier\\|RepeatModifier\\|OptionalDo\\|" .
+	\ "Function\\|BlockArgument\\|KeywordAsMethod\\|ClassVariable\\|" .
+	\ "InstanceVariable\\|GlobalVariable\\|Symbol\\)\\>'"
 endif
 
 setlocal formatoptions-=t formatoptions+=croql
@@ -103,9 +96,26 @@ if has("gui_win32") && !exists("b:browse
 endif
 
 let b:undo_ftplugin = "setl fo< inc< inex< sua< def< com< cms< path< kp<"
-      \ "| unlet! b:browsefilter b:match_ignorecase b:match_words b:match_skip"
-      \ "| if exists('&ofu') && has('ruby') | setl ofu< | endif"
-      \ "| if has('balloon_eval') && exists('+bexpr') | setl bexpr< | endif"
+      \."| unlet! b:browsefilter b:match_ignorecase b:match_words b:match_skip"
+      \."| if exists('&ofu') && has('ruby') | setl ofu< | endif"
+      \."| if has('balloon_eval') && exists('+bexpr') | setl bexpr< | endif"
+
+if !exists("g:no_plugin_maps") && !exists("g:no_ruby_maps")
+
+  noremap <silent> <buffer> [m :<C-U>call <SID>searchsyn('\<def\>','rubyDefine','b')<CR>
+  noremap <silent> <buffer> ]m :<C-U>call <SID>searchsyn('\<def\>','rubyDefine','')<CR>
+  noremap <silent> <buffer> [M :<C-U>call <SID>searchsyn('\<end\>','rubyDefine','b')<CR>
+  noremap <silent> <buffer> ]M :<C-U>call <SID>searchsyn('\<end\>','rubyDefine','')<CR>
+
+  noremap <silent> <buffer> [[ :<C-U>call <SID>searchsyn('\<\%(class\<Bar>module\)\>','rubyModule\<Bar>rubyClass','b')<CR>
+  noremap <silent> <buffer> ]] :<C-U>call <SID>searchsyn('\<\%(class\<Bar>module\)\>','rubyModule\<Bar>rubyClass','')<CR>
+  noremap <silent> <buffer> [] :<C-U>call <SID>searchsyn('\<end\>','rubyModule\<Bar>rubyClass','b')<CR>
+  noremap <silent> <buffer> ][ :<C-U>call <SID>searchsyn('\<end\>','rubyModule\<Bar>rubyClass','')<CR>
+
+  let b:undo_ftplugin = b:undo_ftplugin
+        \."| sil! exe 'unmap <buffer> [[' | sil! exe 'unmap <buffer> ]]' | sil! exe 'unmap <buffer> []' | sil! exe 'unmap <buffer> ]['"
+        \."| sil! exe 'unmap <buffer> [m' | sil! exe 'unmap <buffer> ]m' | sil! exe 'unmap <buffer> [M' | sil! exe 'unmap <buffer> ]M'"
+endif
 
 let &cpo = s:cpo_save
 unlet s:cpo_save
@@ -155,7 +165,7 @@ function! RubyBalloonexpr()
       return ''
     endif
     silent! let res = substitute(system("ri -f simple -T \"".str.'"'),'\n$','','')
-    if res =~ '^Nothing known about' || res =~ '^Bad argument:'
+    if res =~ '^Nothing known about' || res =~ '^Bad argument:' || res =~ '^More than one method'
       return ''
     endif
     return res
@@ -164,6 +174,28 @@ function! RubyBalloonexpr()
   endif
 endfunction
 
+function! s:searchsyn(pattern,syn,flags)
+    norm! m'
+    let i = 0
+    let cnt = v:count ? v:count : 1
+    while i < cnt
+        let i = i + 1
+        let line = line('.')
+        let col  = col('.')
+        let pos = search(a:pattern,'W'.a:flags)
+        while pos != 0 && s:synname() !~# a:syn
+            let pos = search(a:pattern,'W'.a:flags)
+        endwhile
+        if pos == 0
+            call cursor(line,col)
+            return
+        endif
+    endwhile
+endfunction
+
+function! s:synname()
+    return synIDattr(synID(line('.'),col('.'),0),'name')
+endfunction
 
 "
 " Instructions for enabling "matchit" support: