Contents

require 'hairballs'

# Adds the ability to tab-complete files that are in the current directory.
#
# Example:
#
#     # If in the hairballs project root, doing this...
#     irb> File.read("READ⇥
#     # Will complete like this...
#     irb> File.read("README.md"
#
# The +completion_append_character+ is really a Readline option that tells it
# what to do when you tab-complete a term. It's set to not add anything to the
# completed term, but you may find it suits you better to append a single space.
Hairballs.add_plugin(:tab_completion_for_files, completion_append_character: nil) do |plugin|
  plugin.on_load do
    Hairballs.completion_procs << proc do |string|
      Dir[string + '*'].grep(/^#{Regexp.escape(string)}/)
    end

    if defined? ::IRB::InputCompletor::CompletionProc
      Hairballs.completion_procs << ::IRB::InputCompletor::CompletionProc
    end

    completion_proc = Proc.new do |string|
      Hairballs.completion_procs.map do |proc|
        proc.call(string)
      end.flatten.uniq
    end

    if Readline.respond_to?(:basic_word_break_characters=)
      original_breaks = Readline.basic_word_break_characters
      Readline.basic_word_break_characters = " \"'#{original_breaks}"
    end

    Readline.completion_append_character = plugin.completion_append_character
    Readline.completion_proc = completion_proc
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
hairballs-0.1.1	lib/hairballs/plugins/tab_completion_for_files.rb
hairballs-0.1.0	lib/hairballs/plugins/tab_completion_for_files.rb