⌃⇧H in TextMate to 'Tidy' HTML causes NoMethodError

问题

I tried using 'Tidy' in an HTML document for the first time yesterday, and got...

/tmp/temp_textmate.Z2P0KX:30:in `<main>': undefined method `empty?' for nil:NilClass (NoMethodError)

I've not done anything to the code in the bundle...

#!/usr/bin/env ruby -wKU

require ENV['TM_SUPPORT_PATH'] + '/lib/ui.rb'
require ENV['TM_SUPPORT_PATH'] + '/lib/exit_codes.rb'

result = `"${TM_TIDY:-tidy}" -f /tmp/tm_tidy_errors -iq -utf8 \
          -wrap 0 --tab-size $TM_TAB_SIZE --indent-spaces $TM_TAB_SIZE \
        --indent yes \
          ${TM_XHTML:+-asxhtml --output-xhtml yes} \
          ${TM_SELECTED_TEXT:+--show-body-only yes} \
          --enclose-text yes \
          --doctype strict \
        --wrap-php no \
          --tidy-mark no`
status = $?.exitstatus

at_exit { File.unlink('/tmp/tm_tidy_errors') } # Clean up error log

if status == 2 # Errors

  msg = "Errors: " + File.read('/tmp/tm_tidy_errors')
  TextMate.exit_show_tool_tip msg

elsif status == 1 # Warnings - use output but also display notification with warnings

  log = File.read('/tmp/tm_tidy_errors').to_a.select do |line|
    ! (ENV['TM_SELECTED_TEXT'] and (line.include?('Warning: missing <!DOCTYPE> declaration') or line.include?("Warning: inserting missing 'title' element")))
  end.join rescue nil

  unless log.empty?
    options = {
      :title   => "Tidy Warnings",
      :summary => "Warnings for tidying your document (press escape to close):",
      :log     => log
    }
    TextMate::UI.simple_notification(options)
  end

end

if ENV['TM_SOFT_TABS'] == "YES"
  print result
else
  in_pre = false
  result.each_line do |line|
    unless in_pre
      tab_size = ENV["TM_TAB_SIZE"].to_i
      space, text = /( *)(.*)/m.match(line)[1..2]
      line = "\t" * (space.length / tab_size).floor + " "  * (space.length % tab_size) + text
    end

    print line

    in_pre = true  if line.include?("<pre>")
    in_pre = false if line.include?("</pre>")
  end
end

The problem line is unless log.empty?.

I'm running TextMate 1.5.10 (1631) on OS X 10.6.6. I recently installed rvm and upgraded default Ruby to 1.9.2, though forcing TextMate to use 1.8.7 did not fix the problem.

回答1:

I had the same problem. I have setup my Textmate to use the RVM version of ruby so that I can quickly test scripts.

I solved the problem by unchecking the "TM_RUBY" for the environment variable I had created.

What appears to be happening is the Textmate scripts that wrapper the /usr/bin/tidy command are not executing properly when using a ruby version other than the one that ships with OSX.

I'm curious to see what happens when Lion comes out. Hopefully, Textmate will take another look at these build-in scripts and give them a little "dusting-off".

回答2:

If you look at the assignment to log, you'll see this:

log = File.read('/tmp/tm_tidy_errors').to_a.select do |line| ... end.join rescue nil

The rescue nil at the end will put a nil into log if the /tmp/tm_tidy_errors file isn't there or it can't be read or what ever. Then the script will call the .empty? method on nil but the nil object has no such method and the script falls over and dies.

You can suppress the problem by changing rescue nil to rescue '' or by changing unless log.empty? to unless log.nil? || log.empty? but that might not be the real problem.

Do you have a TM_TIDY environment variable set? Is there a tidy command in your PATH? Looks like your Tidy install isn't right (or possible not there at all). My OSX has /usr/bin/tidy and apparently that's standard. Try running that big tidy command by hand in a terminal and see what happens.

回答3:

I had the same problem too, on a machine running OS X 10.9.5 with Ruby upgraded to ruby 2.0.0. Fixed it by taking mu is too short's suggestion to change unless log.empty? to unless long.nil? || log.empty?. That allowed Tidy to run properly, but the top of my HTML selection was still showing me annoying errors:

ruby: warning: -K is specified; it is for 1.8 compatibility and may cause odd behavior
/Applications/TextMate.app/Contents/SharedSupport/Support/lib/ui.rb:129: warning: assigned but unused variable - pid

I shut that up by changing the first line of the script from #!/usr/bin/env ruby -wKU to #!/usr/bin/env ruby -wKU -W0. Obviously the problems are still there under the hood, but for something helpful but not essential, as this functionality is, I think it's plenty good enough.

来源：https://stackoverflow.com/questions/5429097/h-in-textmate-to-tidy-html-causes-nomethoderror