Simple textmate script to convert an inline string to a translation string for use in Rails 2.2 i18n.

Convert to translated with translation in clipboard.tmCommand

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
        <key>beforeRunningCommand</key>
        <string>nop</string>
        <key>command</key>
        <string>#!/usr/bin/ruby
$LOAD_PATH &lt;&lt; "#{ENV["TM_SUPPORT_PATH"]}/lib"
require 'ui'
require 'escape'
require 'exit_codes'

text = ENV['TM_SELECTED_TEXT'] || ENV['TM_CURRENT_WORD']
suggest = text.to_s.gsub(/::/, '/').
        gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').
        gsub(/([a-z\d])([A-Z])/,'\1_\2').
        tr("-", "_").
        downcase

name = TextMate::UI.request_string(:string =&gt; suggest, :prompt =&gt; "Type variable name")

if name.nil? or name == ""
        TextMate.exit_discard
else
        translation = "#{name}: \"#{text}\""

	IO.popen("pbcopy", "w") { |copier| copier.puts translation }
        print "&lt;%=t '#{name}' %&gt;"
end</string>
        <key>fallbackInput</key>
        <string>word</string>
        <key>input</key>
        <string>selection</string>
        <key>keyEquivalent</key>
        <string>^T</string>
        <key>name</key>
        <string>Convert to translated with translation in clipboard</string>
        <key>output</key>
        <string>replaceSelectedText</string>
        <key>scope</key>
        <string>text.html.ruby</string>
        <key>uuid</key>
        <string>F79A298F-8E4F-4DEC-9D6D-F59F833977B3</string>
</dict>
</plist>

textmate_rails_translation_converter.rb

#!/usr/bin/ruby
$LOAD_PATH << "#{ENV["TM_SUPPORT_PATH"]}/lib"
require 'ui'
require 'escape'
require 'exit_codes'

# Work on either selected text or current word
text = ENV['TM_SELECTED_TEXT'] || ENV['TM_CURRENT_WORD']
suggest = text.to_s.gsub(/::/, '/').
	gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').
	gsub(/([a-z\d])([A-Z])/,'\1_\2').
	tr("-", "_").
	downcase

# Get name of translation string
name = TextMate::UI.request_string(:string => suggest, :prompt => "Type variable name")

if name.nil? or name == ""
	TextMate.exit_discard
else
	translation = "#{name}: \"#{text}\""

	# Copy string for en.yml to clipboard
	IO.popen("pbcopy", "w") { |copier| copier.puts translation }
	# Output with translation fetch
	print "<%=t '#{name}' %>"
end