diff --git a/runtime/autoload/rubycomplete.vim b/runtime/autoload/rubycomplete.vim
index ea18470..e8a1879 100644
--- a/runtime/autoload/rubycomplete.vim
+++ b/runtime/autoload/rubycomplete.vim
@@ -3,7 +3,7 @@
 " Maintainer:		Mark Guzman <segfault@hasno.info>
 " URL:			https://github.com/vim-ruby/vim-ruby
 " Release Coordinator:	Doug Kearns <dougkearns@gmail.com>
-" Last Change:		2019 Jan 06
+" Last Change:		2019 Feb 25
 " ----------------------------------------------------------------------------
 "
 " Ruby IRB/Complete author: Keiju ISHITSUKA(keiju@ishitsuka.com)
@@ -53,6 +53,23 @@
 endif
 " }}} configuration failsafe initialization
 
+" {{{ regex patterns
+
+" Regex that defines the start-match for the 'end' keyword.
+let s:end_start_regex =
+      \ '\C\%(^\s*\|[=,*/%+\-|;{]\|<<\|>>\|:\s\)\s*\zs' .
+      \ '\<\%(module\|class\|if\|for\|while\|until\|case\|unless\|begin' .
+      \   '\|\%(\K\k*[!?]\?\s\+\)\=def\):\@!\>' .
+      \ '\|\%(^\|[^.:@$]\)\@<=\<do:\@!\>'
+
+" Regex that defines the middle-match for the 'end' keyword.
+let s:end_middle_regex = '\<\%(ensure\|else\|\%(\%(^\|;\)\s*\)\@<=\<rescue:\@!\>\|when\|elsif\):\@!\>'
+
+" Regex that defines the end-match for the 'end' keyword.
+let s:end_end_regex = '\%(^\|[^.:@$]\)\@<=\<end:\@!\>'
+
+" }}} regex patterns
+
 " {{{ vim-side support functions
 let s:rubycomplete_debug = 0
 
@@ -103,7 +120,7 @@
     endif
 
     let curpos = getpos(".")
-    let [enum,ecol] = searchpairpos( crex, '', '\(end\|}\)', 'W' )
+    let [enum,ecol] = searchpairpos( s:end_start_regex, s:end_middle_regex, s:end_end_regex, 'W' )
     call cursor(lastpos[1], lastpos[2])
 
     if lnum > enum
@@ -128,19 +145,28 @@
     return ret
 endfunction
 
+function! s:IsInComment(pos)
+    let stack = synstack(a:pos[0], a:pos[1])
+    if !empty(stack)
+        return synIDattr(stack[0], 'name') =~ 'ruby\%(.*Comment\|Documentation\)'
+    else
+        return 0
+    endif
+endfunction
+
 function! s:GetRubyVarType(v)
     let stopline = 1
     let vtp = ''
-    let pos = getpos('.')
+    let curpos = getpos('.')
     let sstr = '^\s*#\s*@var\s*'.escape(a:v, '*').'\>\s\+[^ \t]\+\s*$'
     let [lnum,lcol] = searchpos(sstr,'nb',stopline)
     if lnum != 0 && lcol != 0
-        call setpos('.',pos)
+        call setpos('.',curpos)
         let str = getline(lnum)
         let vtp = substitute(str,sstr,'\1','')
         return vtp
     endif
-    call setpos('.',pos)
+    call setpos('.',curpos)
     let ctors = '\(now\|new\|open\|get_instance'
     if exists('g:rubycomplete_rails') && g:rubycomplete_rails == 1 && s:rubycomplete_rails_loaded == 1
         let ctors = ctors.'\|find\|create'
@@ -150,9 +176,13 @@
 
     let fstr = '=\s*\([^ \t]\+.' . ctors .'\>\|[\[{"''/]\|%[xwQqr][(\[{@]\|[A-Za-z0-9@:\-()\.]\+...\?\|lambda\|&\)'
     let sstr = ''.escape(a:v, '*').'\>\s*[+\-*/]*'.fstr
-    let [lnum,lcol] = searchpos(sstr,'nb',stopline)
-    if lnum != 0 && lcol != 0
-        let str = matchstr(getline(lnum),fstr,lcol)
+    let pos = searchpos(sstr,'bW')
+    while pos != [0,0] && s:IsInComment(pos)
+        let pos = searchpos(sstr,'bW')
+    endwhile
+    if pos != [0,0]
+        let [lnum, col] = pos
+        let str = matchstr(getline(lnum),fstr,col)
         let str = substitute(str,'^=\s*','','')
 
         call setpos('.',pos)
@@ -174,7 +204,7 @@
         end
         return ''
     endif
-    call setpos('.',pos)
+    call setpos('.',curpos)
     return ''
 endfunction
 
@@ -671,11 +701,10 @@
           methods.delete_if { |c| c.match( /'/ ) }
         end
 
-      when /^::([A-Z][^:\.\(]*)$/ # Absolute Constant or class methods
+      when /^::([A-Z][^:\.\(]*)?$/ # Absolute Constant or class methods
         dprint "const or cls"
         receiver = $1
-        methods = Object.constants
-        methods.grep(/^#{receiver}/).collect{|e| "::" + e}
+        methods = Object.constants.collect{ |c| c.to_s }.grep(/^#{receiver}/)
 
       when /^(((::)?[A-Z][^:.\(]*)+?)::?([^:.]*)$/ # Constant or class methods
         receiver = $1
@@ -684,13 +713,13 @@
         load_buffer_class( receiver )
         load_buffer_module( receiver )
         begin
-          classes = eval("#{receiver}.constants")
-          #methods = eval("#{receiver}.methods")
+          constants = eval("#{receiver}.constants").collect{ |c| c.to_s }.grep(/^#{message}/)
+          methods = eval("#{receiver}.methods").collect{ |m| m.to_s }.grep(/^#{message}/)
         rescue Exception
           dprint "exception: %s" % $!
+          constants = []
           methods = []
         end
-        methods.grep(/^#{message}/).collect{|e| receiver + "::" + e}
 
       when /^(:[^:.]+)\.([^.]*)$/ # Symbol
         dprint "symbol"