Class: IRB::StdioInputMethod

Inherits:
InputMethod show all
Defined in:
lib/irb/input-method.rb

Instance Attribute Summary

Attributes inherited from InputMethod

#file_name, #prompt

Instance Method Summary collapse

Constructor Details

#initializeStdioInputMethod

Creates a new input method object


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# File 'lib/irb/input-method.rb', line 50

def initialize
  super
  @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

Instance Method Details

#encodingObject

The external encoding for standard input.


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# File 'lib/irb/input-method.rb', line 93

def encoding
  @stdin.external_encoding
end

#eof?Boolean

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.

Returns:

  • (Boolean)

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# File 'lib/irb/input-method.rb', line 71

def eof?
  @stdin.eof?
end

#getsObject

Reads the next line from this input method.

See IO#gets for more information.


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# File 'lib/irb/input-method.rb', line 61

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

#line(line_no) ⇒ Object

Returns the current line number for #io.

#line counts the number of times #gets is called.

See IO#lineno for more information.


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# File 'lib/irb/input-method.rb', line 88

def line(line_no)
  @line[line_no]
end

#readable_after_eof?Boolean

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

See IO#eof for more information.

Returns:

  • (Boolean)

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# File 'lib/irb/input-method.rb', line 79

def readable_after_eof?
  true
end