Class: Pry::Command::Ri

Inherits:
Pry::ClassCommand show all
Defined in:
lib/pry/commands/ri.rb

Constant Summary

Constants inherited from Pry::Command

VOID_VALUE

Instance Attribute Summary

Attributes inherited from Pry::ClassCommand

#args, #opts

Attributes inherited from Pry::Command

#_pry_, #arg_string, #captures, #command_block, #command_set, #context, #eval_string, #output, #target

Instance Method Summary collapse

Methods inherited from Pry::ClassCommand

#call, #complete, doc, #help, inherited, #options, #setup, #slop, source, source_file, source_line, source_location, #subcommands

Methods inherited from Pry::Command

banner, #block, #call_safely, #check_for_command_collision, #command_name, command_name, #command_options, command_regex, #commands, #complete, convert_to_regex, default_options, #dependencies_met?, #description, doc, group, hooks, #initialize, inspect, #interpolate_string, #match, match_score, matches?, #name, name, options, #process_line, #run, #source, source, source_file, source_line, #source_location, source_location, #state, subclass, #target_self, #text, #tokenize, #void

Methods included from Pry::CodeObject::Helpers

#c_method?, #command?, #module_with_yard_docs?, #real_method_object?

Methods included from Helpers::DocumentationHelpers

get_comment_content, process_comment_markup, process_rdoc, process_yardoc, process_yardoc_tag, strip_comments_from_c_code, strip_leading_whitespace

Methods included from Helpers::CommandHelpers

absolute_index_number, absolute_index_range, command_error, get_method_or_raise, internal_binding?, one_index_number, one_index_range, one_index_range_or_number, restrict_to_lines, set_file_and_dir_locals, temp_file, unindent

Methods included from Helpers::OptionsHelpers

method_object, method_options

Methods included from Helpers::BaseHelpers

colorize_code, command_dependencies_met?, find_command, heading, highlight, jruby?, jruby_19?, mri?, mri_19?, mri_20?, mri_21?, mri_2?, not_a_real_file?, rbx?, #safe_send, safe_send, silence_warnings, stagger_output, use_ansi_codes?, windows?, windows_ansi?

Constructor Details

This class inherits a constructor from Pry::Command

Instance Method Details

#process(spec) ⇒ Object


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# File 'lib/pry/commands/ri.rb', line 16

def process(spec)
  # Lazily load RI
  require 'rdoc/ri/driver'

  unless defined? RDoc::RI::PryDriver

    # Subclass RI so that it formats its output nicely, and uses `lesspipe`.
    subclass = Class.new(RDoc::RI::Driver) # the hard way.

    subclass.class_eval do
      def initialize(pager, opts)
        @pager = pager
        super opts
      end
      def page
        paging_text = StringIO.new
        yield paging_text
        @pager.page(paging_text.string)
      end

      def formatter(io)
        if @formatter_klass
          @formatter_klass.new
        else
          RDoc::Markup::ToAnsi.new
        end
      end
    end

    RDoc::RI.const_set :PryDriver, subclass   # hook it up!
  end

  # Spin-up an RI insance.
  ri = RDoc::RI::PryDriver.new _pry_.pager, :use_stdout => true, :interactive => false

  begin
    ri.display_names [spec]  # Get the documentation (finally!)
  rescue RDoc::RI::Driver::NotFoundError => e
    output.puts "error: '#{e.name}' not found"
  end
end