# class IRB::ReadlineInputMethod

### Public Class Methods

new() click to toggle source

Creates a new input method object using Readline

Calls superclass method IRB::InputMethod.new

    # File lib/irb/input-method.rb, line 133
    def initialize
      super

      @line_no = 0
      @line = []
      @eof = false

      @stdin = IO.open(STDIN.to_i, :external_encoding => IRB.conf[:LC_MESSAGES].encoding, :internal_encoding => "-")
      @stdout = IO.open(STDOUT.to_i, 'w', :external_encoding => IRB.conf[:LC_MESSAGES].encoding, :internal_encoding => "-")
    end

### Public Instance Methods

encoding() click to toggle source

The external encoding for standard input.

    # File lib/irb/input-method.rb, line 185
    def encoding
      @stdin.external_encoding
    end

eof?() click to toggle source

Whether the end of this input method has been reached, returns `true` if there is no more data to read.

See IO#eof? for more information.

    # File lib/irb/input-method.rb, line 163
    def eof?
      @eof
    end

gets() click to toggle source

Reads the next line from this input method.

See IO#gets for more information.

    # File lib/irb/input-method.rb, line 147
    def gets
      Readline.input = @stdin
      Readline.output = @stdout
      if l = readline(@prompt, false)
        HISTORY.push(l) if !l.empty?
        @line[@line_no += 1] = l + "\n"
      else
        @eof = true
        l
      end
    end

line(line_no) click to toggle source

Returns the current line number for io.

line counts the number of times gets is called.

See IO#lineno for more information.

    # File lib/irb/input-method.rb, line 180
    def line(line_no)
      @line[line_no]
    end

readable_after_eof?() click to toggle source

Whether this input method is still readable when there is no more data to read.

See IO#eof for more information.

    # File lib/irb/input-method.rb, line 171
    def readable_after_eof?
      true
    end