class IRB::StdioInputMethod

Public Class Methods

Source

# File lib/irb/input-method.rb, line 59
def initialize
  @line_no = 0
  @line = []
  @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

Creates a new input method object

Public Instance Methods

encoding ()

Source

# File lib/irb/input-method.rb, line 115
def encoding
  @stdin.external_encoding
end

The external encoding for standard input.

eof? ()

Source

# File lib/irb/input-method.rb, line 82
def eof?
  if @stdin.wait_readable(0.00001)
    c = @stdin.getc
    result = c.nil? ? true : false
    @stdin.ungetc(c) unless c.nil?
    result
  else # buffer is empty
    false
  end
end

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.

gets ()

Source

# File lib/irb/input-method.rb, line 69
def gets
  # Workaround for debug compatibility test https://github.com/ruby/debug/pull/1100
  puts if ENV['RUBY_DEBUG_TEST_UI']

  print @prompt
  line = @stdin.gets
  @line[@line_no += 1] = line
end

Reads the next line from this input method.

See IO#gets for more information.

inspect ()

Source

# File lib/irb/input-method.rb, line 120
def inspect
  'StdioInputMethod'
end

For debug message

line (line_no)

Source

# File lib/irb/input-method.rb, line 110
def line(line_no)
  @line[line_no]
end

Returns the current line number for io.

line counts the number of times gets is called.

See IO#lineno for more information.

prompting? ()

Source

# File lib/irb/input-method.rb, line 101
def prompting?
  STDIN.tty?
end

readable_after_eof? ()

Source

# File lib/irb/input-method.rb, line 97
def readable_after_eof?
  true
end

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

See IO#eof for more information.