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Diffstat (limited to 'ruby_2_2/lib/irb/input-method.rb')
-rw-r--r-- | ruby_2_2/lib/irb/input-method.rb | 191 |
1 files changed, 0 insertions, 191 deletions
diff --git a/ruby_2_2/lib/irb/input-method.rb b/ruby_2_2/lib/irb/input-method.rb deleted file mode 100644 index 4ea3f585f8..0000000000 --- a/ruby_2_2/lib/irb/input-method.rb +++ /dev/null @@ -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 |