diff options
Diffstat (limited to 'lib/irb/input-method.rb')
| -rw-r--r-- | lib/irb/input-method.rb | 354 |
1 files changed, 0 insertions, 354 deletions
diff --git a/lib/irb/input-method.rb b/lib/irb/input-method.rb deleted file mode 100644 index 61540a106f..0000000000 --- a/lib/irb/input-method.rb +++ /dev/null @@ -1,354 +0,0 @@ -# frozen_string_literal: false -# -# irb/input-method.rb - input methods used irb -# $Release Version: 0.9.6$ -# $Revision$ -# by Keiju ISHITSUKA(keiju@ruby-lang.org) -# -# -- -# -# -# -require_relative 'src_encoding' -require_relative 'magic-file' -require_relative 'completion' -require 'io/console' -require 'reline' - -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 - fail NotImplementedError, "gets" - end - public :gets - - def winsize - if instance_variable_defined?(:@stdout) - @stdout.winsize - else - [24, 80] - end - 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? - false - end - - # For debug message - def inspect - 'Abstract InputMethod' - 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? - rs, = IO.select([@stdin], [], [], 0.00001) - if rs and rs[0] - c = @stdin.getc - result = c.nil? ? true : false - @stdin.ungetc(c) unless c.nil? - result - else # buffer is empty - false - end - 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 - - # For debug message - def inspect - 'StdioInputMethod' - 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 - @io.gets - end - - # The external encoding for standard input. - def encoding - @io.external_encoding - end - - # For debug message - def inspect - 'FileInputMethod' - end - end - - begin - class ReadlineInputMethod < InputMethod - def self.initialize_readline - require "readline" - rescue LoadError - else - include ::Readline - end - - # Creates a new input method object using Readline - def initialize - self.class.initialize_readline - if Readline.respond_to?(:encoding_system_needs) - IRB.__send__(:set_encoding, Readline.encoding_system_needs.name, override: false) - end - 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 => "-") - - if Readline.respond_to?("basic_word_break_characters=") - Readline.basic_word_break_characters = IRB::InputCompletor::BASIC_WORD_BREAK_CHARACTERS - end - Readline.completion_append_character = nil - Readline.completion_proc = IRB::InputCompletor::CompletionProc - 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 - - # For debug message - def inspect - readline_impl = (defined?(Reline) && Readline == Reline) ? 'Reline' : 'ext/readline' - str = "ReadlineInputMethod with #{readline_impl} #{Readline::VERSION}" - inputrc_path = File.expand_path(ENV['INPUTRC'] || '~/.inputrc') - str += " and #{inputrc_path}" if File.exist?(inputrc_path) - str - end - end - end - - class ReidlineInputMethod < InputMethod - include Reline - # Creates a new input method object using Readline - def initialize - IRB.__send__(:set_encoding, Reline.encoding_system_needs.name, override: false) - 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 => "-") - - if Reline.respond_to?("basic_word_break_characters=") - Reline.basic_word_break_characters = IRB::InputCompletor::BASIC_WORD_BREAK_CHARACTERS - end - Reline.completion_append_character = nil - Reline.completion_proc = IRB::InputCompletor::CompletionProc - Reline.output_modifier_proc = - if IRB.conf[:USE_COLORIZE] - proc do |output, complete: | - next unless IRB::Color.colorable? - IRB::Color.colorize_code(output, complete: complete) - end - else - proc do |output| - Reline::Unicode.escape_for_print(output) - end - end - Reline.dig_perfect_match_proc = IRB::InputCompletor::PerfectMatchedProc - end - - def check_termination(&block) - @check_termination_proc = block - end - - def dynamic_prompt(&block) - @prompt_proc = block - end - - def auto_indent(&block) - @auto_indent_proc = block - end - - # Reads the next line from this input method. - # - # See IO#gets for more information. - def gets - Reline.input = @stdin - Reline.output = @stdout - Reline.prompt_proc = @prompt_proc - Reline.auto_indent_proc = @auto_indent_proc if @auto_indent_proc - if l = readmultiline(@prompt, false, &@check_termination_proc) - 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 - - # For debug message - def inspect - config = Reline::Config.new - str = "ReidlineInputMethod with Reline #{Reline::VERSION}" - if config.respond_to?(:inputrc_path) - inputrc_path = File.expand_path(config.inputrc_path) - else - inputrc_path = File.expand_path(ENV['INPUTRC'] || '~/.inputrc') - end - str += " and #{inputrc_path}" if File.exist?(inputrc_path) - str - end - end -end |