diff options
Diffstat (limited to 'lib/irb/input-method.rb')
| -rw-r--r-- | lib/irb/input-method.rb | 473 |
1 files changed, 0 insertions, 473 deletions
diff --git a/lib/irb/input-method.rb b/lib/irb/input-method.rb deleted file mode 100644 index b77fd3207d..0000000000 --- a/lib/irb/input-method.rb +++ /dev/null @@ -1,473 +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.tty? - @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? - 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 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 - class << self - def open(file, &block) - begin - io = new(file) - block.call(io) - ensure - io&.close - end - end - end - - # Creates a new input method object - def initialize(file) - super - @io = IRB::MagicFile.open(file) - @external_encoding = @io.external_encoding - 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.closed? || @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 - @external_encoding - end - - # For debug message - def inspect - 'FileInputMethod' - end - - def close - @io.close - 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 Reline - 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.completer_quote_characters = '' - 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 - Reline.autocompletion = IRB.conf[:USE_AUTOCOMPLETE] - if IRB.conf[:USE_AUTOCOMPLETE] - Reline.add_dialog_proc(:show_doc, SHOW_DOC_DIALOG, Reline::DEFAULT_DIALOG_CONTEXT) - end - 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 - - SHOW_DOC_DIALOG = ->() { - dialog.trap_key = nil - alt_d = [ - [Reline::Key.new(nil, 0xE4, true)], # Normal Alt+d. - [27, 100], # Normal Alt+d when convert-meta isn't used. - [195, 164], # The "ä" that appears when Alt+d is pressed on xterm. - [226, 136, 130] # The "∂" that appears when Alt+d in pressed on iTerm2. - ] - begin - require 'rdoc' - rescue LoadError - return nil - end - - if just_cursor_moving and completion_journey_data.nil? - return nil - end - cursor_pos_to_render, result, pointer, autocomplete_dialog = context.pop(4) - return nil if result.nil? or pointer.nil? or pointer < 0 - name = result[pointer] - name = IRB::InputCompletor.retrieve_completion_data(name, doc_namespace: true) - - options = {} - options[:extra_doc_dirs] = IRB.conf[:EXTRA_DOC_DIRS] unless IRB.conf[:EXTRA_DOC_DIRS].empty? - driver = RDoc::RI::Driver.new(options) - - if key.match?(dialog.name) - begin - driver.display_names([name]) - rescue RDoc::RI::Driver::NotFoundError - end - end - - begin - name = driver.expand_name(name) - rescue RDoc::RI::Driver::NotFoundError - return nil - rescue - return nil # unknown error - end - doc = nil - used_for_class = false - if not name =~ /#|\./ - found, klasses, includes, extends = driver.classes_and_includes_and_extends_for(name) - if not found.empty? - doc = driver.class_document(name, found, klasses, includes, extends) - used_for_class = true - end - end - unless used_for_class - doc = RDoc::Markup::Document.new - begin - driver.add_method(doc, name) - rescue RDoc::RI::Driver::NotFoundError - doc = nil - rescue - return nil # unknown error - end - end - return nil if doc.nil? - width = 40 - - right_x = cursor_pos_to_render.x + autocomplete_dialog.width - if right_x + width > screen_width - right_width = screen_width - (right_x + 1) - left_x = autocomplete_dialog.column - width - left_x = 0 if left_x < 0 - left_width = width > autocomplete_dialog.column ? autocomplete_dialog.column : width - if right_width.positive? and left_width.positive? - if right_width >= left_width - width = right_width - x = right_x - else - width = left_width - x = left_x - end - elsif right_width.positive? and left_width <= 0 - width = right_width - x = right_x - elsif right_width <= 0 and left_width.positive? - width = left_width - x = left_x - else # Both are negative width. - return nil - end - else - x = right_x - end - formatter = RDoc::Markup::ToAnsi.new - formatter.width = width - dialog.trap_key = alt_d - message = 'Press Alt+d to read the full document' - contents = [message] + doc.accept(formatter).split("\n") - - y = cursor_pos_to_render.y - DialogRenderInfo.new(pos: Reline::CursorPos.new(x, y), contents: contents, width: width, bg_color: '49') - } - - # 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 |