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-rw-r--r--ruby_2_2/lib/irb/input-method.rb191
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diff --git a/ruby_2_2/lib/irb/input-method.rb b/ruby_2_2/lib/irb/input-method.rb
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--- a/ruby_2_2/lib/irb/input-method.rb
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@@ -1,191 +0,0 @@
-#
-# irb/input-method.rb - input methods used irb
-# $Release Version: 0.9.6$
-# $Revision$
-# by Keiju ISHITSUKA(keiju@ruby-lang.org)
-#
-# --
-#
-#
-#
-require 'irb/src_encoding'
-require 'irb/magic-file'
-
-module IRB
- STDIN_FILE_NAME = "(line)" # :nodoc:
- class InputMethod
-
- # Creates a new input method object
- def initialize(file = STDIN_FILE_NAME)
- @file_name = file
- end
- # The file name of this input method, usually given during initialization.
- attr_reader :file_name
-
- # The irb prompt associated with this input method
- attr_accessor :prompt
-
- # Reads the next line from this input method.
- #
- # See IO#gets for more information.
- def gets
- IRB.fail NotImplementedError, "gets"
- end
- public :gets
-
- # Whether this input method is still readable when there is no more data to
- # read.
- #
- # See IO#eof for more information.
- def readable_after_eof?
- false
- end
- end
-
- class StdioInputMethod < InputMethod
- # Creates a new input method object
- 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
-
- # Reads the next line from this input method.
- #
- # See IO#gets for more information.
- def gets
- print @prompt
- line = @stdin.gets
- @line[@line_no += 1] = line
- 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.
- def eof?
- @stdin.eof?
- end
-
- # Whether this input method is still readable when there is no more data to
- # read.
- #
- # See IO#eof for more information.
- def readable_after_eof?
- true
- end
-
- # Returns the current line number for #io.
- #
- # #line counts the number of times #gets is called.
- #
- # See IO#lineno for more information.
- def line(line_no)
- @line[line_no]
- end
-
- # The external encoding for standard input.
- def encoding
- @stdin.external_encoding
- end
- end
-
- # Use a File for IO with irb, see InputMethod
- class FileInputMethod < InputMethod
- # Creates a new input method object
- def initialize(file)
- super
- @io = IRB::MagicFile.open(file)
- end
- # The file name of this input method, usually given during initialization.
- attr_reader :file_name
-
- # 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.
- def eof?
- @io.eof?
- end
-
- # Reads the next line from this input method.
- #
- # See IO#gets for more information.
- def gets
- print @prompt
- l = @io.gets
- l
- end
-
- # The external encoding for standard input.
- def encoding
- @io.external_encoding
- end
- end
-
- begin
- require "readline"
- class ReadlineInputMethod < InputMethod
- include Readline
- # Creates a new input method object using Readline
- 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
-
- # Reads the next line from this input method.
- #
- # See IO#gets for more information.
- 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
-
- # 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.
- def eof?
- @eof
- end
-
- # Whether this input method is still readable when there is no more data to
- # read.
- #
- # See IO#eof for more information.
- def readable_after_eof?
- true
- end
-
- # Returns the current line number for #io.
- #
- # #line counts the number of times #gets is called.
- #
- # See IO#lineno for more information.
- def line(line_no)
- @line[line_no]
- end
-
- # The external encoding for standard input.
- def encoding
- @stdin.external_encoding
- end
- end
- rescue LoadError
- end
-end