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--- docset_query.rb (original)
+++ docset_query.rb
@@ -1,5 +1,4 @@
 SUPPORT = ENV['TM_SUPPORT_PATH']
-DIALOG = SUPPORT + '/bin/tm_dialog'
 
 require SUPPORT + '/lib/exit_codes'
 require SUPPORT + '/lib/escape'
@@ -31,6 +30,8 @@
  
 def search_docs (query)
  DOCSETS.each do |docset|
+   next unless File.exists? docset
+
    cmd = DOCSET_CMD + query + ' ' + docset
    response = `#{cmd}`
    case response     # elaborate for doc purposes
@@ -71,8 +72,8 @@
 end
 
 def man_page (query)
- if `man -w #{query}` !~ /No manual entry/
-   page = `#{SUPPORT}/bin/html_man.sh -a #{query}`
+ if `man 2>&1 -w #{query}` !~ /No manual entry/
+   page = `#{e_sh SUPPORT}/bin/html_man.sh -a #{query}`
    TextMate.exit_show_html "<meta http-equiv='Refresh' content='0;URL=tm-file://#{page}'>"
  else
    TextMate.exit_show_tool_tip "Cannot find documentation for: #{query}"
@@ -81,7 +82,7 @@
 
 def get_user_selected_reference (class_names)
  plist = {'menuItems' => class_names}.to_plist
- res = OSX::PropertyList::load(%x{#{e_sh DIALOG} -up #{e_sh plist} })
+ res = OSX::PropertyList::load(%x{"$DIALOG" -up #{e_sh plist} })
  res['selectedMenuItem'] ? res['selectedMenuItem']['path'] : nil
 end