# File ruby-3.1.2/lib/reline.rb, line 159 def add_dialog_proc(name_sym, p, context = nil) raise ArgumentError unless p.respond_to?(:call) or p.nil? raise ArgumentError unless name_sym.instance_of?(Symbol) @dialog_proc_list[name_sym] = DialogProc.new(p, context) end
# File ruby-3.1.2/lib/reline.rb, line 463 def ambiguous_width may_req_ambiguous_char_width unless defined? @ambiguous_width @ambiguous_width end
# File ruby-3.1.2/lib/reline.rb, line 144 def auto_indent_proc=(p) raise ArgumentError unless p.respond_to?(:call) or p.nil? @auto_indent_proc = p end
# File ruby-3.1.2/lib/reline.rb, line 126 def autocompletion @config.autocompletion end
# File ruby-3.1.2/lib/reline.rb, line 130 def autocompletion=(val) @config.autocompletion = val end
# File ruby-3.1.2/lib/reline.rb, line 93 def basic_quote_characters=(v) @basic_quote_characters = v.encode(Reline::IOGate.encoding) end
# File ruby-3.1.2/lib/reline.rb, line 85 def basic_word_break_characters=(v) @basic_word_break_characters = v.encode(Reline::IOGate.encoding) end
# File ruby-3.1.2/lib/reline.rb, line 97 def completer_quote_characters=(v) @completer_quote_characters = v.encode(Reline::IOGate.encoding) end
# File ruby-3.1.2/lib/reline.rb, line 89 def completer_word_break_characters=(v) @completer_word_break_characters = v.encode(Reline::IOGate.encoding) end
# File ruby-3.1.2/lib/reline.rb, line 73 def completion_append_character=(val) if val.nil? @completion_append_character = nil elsif val.size == 1 @completion_append_character = val.encode(Reline::IOGate.encoding) elsif val.size > 1 @completion_append_character = val[0].encode(Reline::IOGate.encoding) else @completion_append_character = nil end end
# File ruby-3.1.2/lib/reline.rb, line 113 def completion_case_fold @config.completion_ignore_case end
# File ruby-3.1.2/lib/reline.rb, line 109 def completion_case_fold=(v) @config.completion_ignore_case = v end
# File ruby-3.1.2/lib/reline.rb, line 121 def completion_proc=(p) raise ArgumentError unless p.respond_to?(:call) or p.nil? @completion_proc = p end
# File ruby-3.1.2/lib/reline.rb, line 117 def completion_quote_character @completion_quote_character end
# File ruby-3.1.2/lib/reline.rb, line 165 def dialog_proc(name_sym) @dialog_proc_list[name_sym] end
# File ruby-3.1.2/lib/reline.rb, line 153 def dig_perfect_match_proc=(p) raise ArgumentError unless p.respond_to?(:call) or p.nil? @dig_perfect_match_proc = p end
# File ruby-3.1.2/lib/reline.rb, line 193 def emacs_editing_mode config.editing_mode = :emacs nil end
# File ruby-3.1.2/lib/reline.rb, line 202 def emacs_editing_mode? config.editing_mode_is?(:emacs) end
# File ruby-3.1.2/lib/reline.rb, line 69 def encoding Reline::IOGate.encoding end
# File ruby-3.1.2/lib/reline.rb, line 101 def filename_quote_characters=(v) @filename_quote_characters = v.encode(Reline::IOGate.encoding) end
# File ruby-3.1.2/lib/reline.rb, line 206 def get_screen_size Reline::IOGate.get_screen_size end
# File ruby-3.1.2/lib/reline.rb, line 169 def input=(val) raise TypeError unless val.respond_to?(:getc) or val.nil? if val.respond_to?(:getc) if defined?(Reline::ANSI) and Reline::IOGate == Reline::ANSI Reline::ANSI.input = val elsif Reline::IOGate == Reline::GeneralIO Reline::GeneralIO.input = val end end end
# File ruby-3.1.2/lib/reline.rb, line 180 def output=(val) raise TypeError unless val.respond_to?(:write) or val.nil? @output = val if defined?(Reline::ANSI) and Reline::IOGate == Reline::ANSI Reline::ANSI.output = val end end
# File ruby-3.1.2/lib/reline.rb, line 134 def output_modifier_proc=(p) raise ArgumentError unless p.respond_to?(:call) or p.nil? @output_modifier_proc = p end
# File ruby-3.1.2/lib/reline.rb, line 149 def pre_input_hook=(p) @pre_input_hook = p end
# File ruby-3.1.2/lib/reline.rb, line 139 def prompt_proc=(p) raise ArgumentError unless p.respond_to?(:call) or p.nil? @prompt_proc = p end
# File ruby-3.1.2/lib/reline.rb, line 266 def readline(prompt = '', add_hist = false) inner_readline(prompt, add_hist, false) line = line_editor.line.dup line.taint if RUBY_VERSION < '2.7' if add_hist and line and line.chomp("\n").size > 0 Reline::HISTORY << line.chomp("\n") end line_editor.reset_line if line_editor.line.nil? line end
# File ruby-3.1.2/lib/reline.rb, line 250 def readmultiline(prompt = '', add_hist = false, &confirm_multiline_termination) unless confirm_multiline_termination raise ArgumentError.new('#readmultiline needs block to confirm multiline termination') end inner_readline(prompt, add_hist, true, &confirm_multiline_termination) whole_buffer = line_editor.whole_buffer.dup whole_buffer.taint if RUBY_VERSION < '2.7' if add_hist and whole_buffer and whole_buffer.chomp("\n").size > 0 Reline::HISTORY << whole_buffer end line_editor.reset_line if line_editor.whole_buffer.nil? whole_buffer end
# File ruby-3.1.2/lib/reline.rb, line 105 def special_prefixes=(v) @special_prefixes = v.encode(Reline::IOGate.encoding) end
# File ruby-3.1.2/lib/reline.rb, line 279 def inner_readline(prompt, add_hist, multiline, &confirm_multiline_termination) if ENV['RELINE_STDERR_TTY'] if Reline::IOGate.win? $stderr = File.open(ENV['RELINE_STDERR_TTY'], 'a') else $stderr.reopen(ENV['RELINE_STDERR_TTY'], 'w') end $stderr.sync = true $stderr.puts "Reline is used by #{Process.pid}" end otio = Reline::IOGate.prep may_req_ambiguous_char_width line_editor.reset(prompt, encoding: Reline::IOGate.encoding) if multiline line_editor.multiline_on if block_given? line_editor.confirm_multiline_termination_proc = confirm_multiline_termination end else line_editor.multiline_off end line_editor.output = output line_editor.completion_proc = completion_proc line_editor.completion_append_character = completion_append_character line_editor.output_modifier_proc = output_modifier_proc line_editor.prompt_proc = prompt_proc line_editor.auto_indent_proc = auto_indent_proc line_editor.dig_perfect_match_proc = dig_perfect_match_proc line_editor.pre_input_hook = pre_input_hook @dialog_proc_list.each_pair do |name_sym, d| line_editor.add_dialog_proc(name_sym, d.dialog_proc, d.context) end unless config.test_mode config.read config.reset_default_key_bindings Reline::IOGate.set_default_key_bindings(config) end line_editor.rerender begin line_editor.set_signal_handlers prev_pasting_state = false loop do prev_pasting_state = Reline::IOGate.in_pasting? read_io(config.keyseq_timeout) { |inputs| line_editor.set_pasting_state(Reline::IOGate.in_pasting?) inputs.each { |c| line_editor.input_key(c) line_editor.rerender } if @bracketed_paste_finished line_editor.rerender_all @bracketed_paste_finished = false end } if prev_pasting_state == true and not Reline::IOGate.in_pasting? and not line_editor.finished? line_editor.set_pasting_state(false) prev_pasting_state = false line_editor.rerender_all end break if line_editor.finished? end Reline::IOGate.move_cursor_column(0) rescue Errno::EIO # Maybe the I/O has been closed. rescue StandardError => e line_editor.finalize Reline::IOGate.deprep(otio) raise e rescue Exception # Including Interrupt line_editor.finalize Reline::IOGate.deprep(otio) raise end line_editor.finalize Reline::IOGate.deprep(otio) end
# File ruby-3.1.2/lib/reline.rb, line 468 def may_req_ambiguous_char_width @ambiguous_width = 2 if Reline::IOGate == Reline::GeneralIO or STDOUT.is_a?(File) return if defined? @ambiguous_width Reline::IOGate.move_cursor_column(0) begin output.write "\u{25bd}" rescue Encoding::UndefinedConversionError # LANG=C @ambiguous_width = 1 else @ambiguous_width = Reline::IOGate.cursor_pos.x end Reline::IOGate.move_cursor_column(0) Reline::IOGate.erase_after_cursor end
# File ruby-3.1.2/lib/reline.rb, line 410 def read_2nd_character_of_key_sequence(keyseq_timeout, buffer, c, block) begin succ_c = nil Timeout.timeout(keyseq_timeout / 1000.0) { succ_c = Reline::IOGate.getc } rescue Timeout::Error # cancel matching only when first byte block.([Reline::Key.new(c, c, false)]) return :break else case key_stroke.match_status(buffer.dup.push(succ_c)) when :unmatched if c == "\e".ord block.([Reline::Key.new(succ_c, succ_c | 0b10000000, true)]) else block.([Reline::Key.new(c, c, false), Reline::Key.new(succ_c, succ_c, false)]) end return :break when :matching Reline::IOGate.ungetc(succ_c) return :next when :matched buffer << succ_c expanded = key_stroke.expand(buffer).map{ |expanded_c| Reline::Key.new(expanded_c, expanded_c, false) } block.(expanded) return :break end end end
# File ruby-3.1.2/lib/reline.rb, line 442 def read_escaped_key(keyseq_timeout, c, block) begin escaped_c = nil Timeout.timeout(keyseq_timeout / 1000.0) { escaped_c = Reline::IOGate.getc } rescue Timeout::Error # independent ESC block.([Reline::Key.new(c, c, false)]) else if escaped_c.nil? block.([Reline::Key.new(c, c, false)]) elsif escaped_c >= 128 # maybe, first byte of multi byte block.([Reline::Key.new(c, c, false), Reline::Key.new(escaped_c, escaped_c, false)]) elsif escaped_c == "\e".ord # escape twice block.([Reline::Key.new(c, c, false), Reline::Key.new(c, c, false)]) else block.([Reline::Key.new(escaped_c, escaped_c | 0b10000000, true)]) end end end
GNU Readline
waits for “keyseq-timeout” milliseconds to see if the ESC is followed by a character, and times out and treats it as a standalone ESC if the second character does not arrive. If the second character comes before timed out, it is treated as a modifier key with the meta-property of meta-key, so that it can be distinguished from multibyte characters with the 8th bit turned on.
GNU Readline
will wait for the 2nd character with “keyseq-timeout” milli-seconds but wait forever after 3rd characters.
# File ruby-3.1.2/lib/reline.rb, line 371 def read_io(keyseq_timeout, &block) buffer = [] loop do c = Reline::IOGate.getc if c == -1 result = :unmatched @bracketed_paste_finished = true else buffer << c result = key_stroke.match_status(buffer) end case result when :matched expanded = key_stroke.expand(buffer).map{ |expanded_c| Reline::Key.new(expanded_c, expanded_c, false) } block.(expanded) break when :matching if buffer.size == 1 case read_2nd_character_of_key_sequence(keyseq_timeout, buffer, c, block) when :break then break when :next then next end end when :unmatched if buffer.size == 1 and c == "\e".ord read_escaped_key(keyseq_timeout, c, block) else expanded = buffer.map{ |expanded_c| Reline::Key.new(expanded_c, expanded_c, false) } block.(expanded) end break end end end