diff options
Diffstat (limited to 'lib/reline.rb')
| -rw-r--r-- | lib/reline.rb | 431 |
1 files changed, 0 insertions, 431 deletions
diff --git a/lib/reline.rb b/lib/reline.rb deleted file mode 100644 index 3303fb4dd4..0000000000 --- a/lib/reline.rb +++ /dev/null @@ -1,431 +0,0 @@ -require 'io/console' -require 'timeout' -require 'forwardable' -require 'reline/version' -require 'reline/config' -require 'reline/key_actor' -require 'reline/key_stroke' -require 'reline/line_editor' -require 'reline/history' - -module Reline - FILENAME_COMPLETION_PROC = nil - USERNAME_COMPLETION_PROC = nil - - Key = Struct.new('Key', :char, :combined_char, :with_meta) - CursorPos = Struct.new(:x, :y) - - class Core - ATTR_READER_NAMES = %i( - completion_append_character - basic_word_break_characters - completer_word_break_characters - basic_quote_characters - completer_quote_characters - filename_quote_characters - special_prefixes - completion_proc - output_modifier_proc - prompt_proc - auto_indent_proc - pre_input_hook - dig_perfect_match_proc - ).each(&method(:attr_reader)) - - attr_accessor :config - attr_accessor :key_stroke - attr_accessor :line_editor - attr_accessor :ambiguous_width - attr_accessor :last_incremental_search - attr_reader :output - - def initialize - self.output = STDOUT - yield self - @completion_quote_character = nil - end - - def encoding - Reline::IOGate.encoding - end - - 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 - - def basic_word_break_characters=(v) - @basic_word_break_characters = v.encode(Reline::IOGate.encoding) - end - - def completer_word_break_characters=(v) - @completer_word_break_characters = v.encode(Reline::IOGate.encoding) - end - - def basic_quote_characters=(v) - @basic_quote_characters = v.encode(Reline::IOGate.encoding) - end - - def completer_quote_characters=(v) - @completer_quote_characters = v.encode(Reline::IOGate.encoding) - end - - def filename_quote_characters=(v) - @filename_quote_characters = v.encode(Reline::IOGate.encoding) - end - - def special_prefixes=(v) - @special_prefixes = v.encode(Reline::IOGate.encoding) - end - - def completion_case_fold=(v) - @config.completion_ignore_case = v - end - - def completion_case_fold - @config.completion_ignore_case - end - - def completion_quote_character - @completion_quote_character - end - - def completion_proc=(p) - raise ArgumentError unless p.respond_to?(:call) - @completion_proc = p - end - - def output_modifier_proc=(p) - raise ArgumentError unless p.respond_to?(:call) - @output_modifier_proc = p - end - - def prompt_proc=(p) - raise ArgumentError unless p.respond_to?(:call) - @prompt_proc = p - end - - def auto_indent_proc=(p) - raise ArgumentError unless p.respond_to?(:call) - @auto_indent_proc = p - end - - def pre_input_hook=(p) - @pre_input_hook = p - end - - def dig_perfect_match_proc=(p) - raise ArgumentError unless p.respond_to?(:call) - @dig_perfect_match_proc = p - end - - 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 - - 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 - - def vi_editing_mode - config.editing_mode = :vi_insert - nil - end - - def emacs_editing_mode - config.editing_mode = :emacs - nil - end - - def vi_editing_mode? - config.editing_mode_is?(:vi_insert, :vi_command) - end - - def emacs_editing_mode? - config.editing_mode_is?(:emacs) - end - - def get_screen_size - Reline::IOGate.get_screen_size - end - - 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.size > 0 - Reline::HISTORY << whole_buffer - end - - line_editor.reset_line if line_editor.whole_buffer.nil? - whole_buffer - end - - 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.size > 0 - Reline::HISTORY << line.chomp - end - - line_editor.reset_line if line_editor.line.nil? - line - end - - private def inner_readline(prompt, add_hist, multiline, &confirm_multiline_termination) - if ENV['RELINE_STDERR_TTY'] - $stderr.reopen(ENV['RELINE_STDERR_TTY'], 'w') - $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 - line_editor.rerender - - unless config.test_mode - config.read - config.reset_default_key_bindings - Reline::IOGate::RAW_KEYSTROKE_CONFIG.each_pair do |key, func| - config.add_default_key_binding(key, func) - end - end - - begin - loop do - read_io(config.keyseq_timeout) { |inputs| - inputs.each { |c| - line_editor.input_key(c) - line_editor.rerender - } - } - break if line_editor.finished? - end - Reline::IOGate.move_cursor_column(0) - rescue StandardError => e - line_editor.finalize - Reline::IOGate.deprep(otio) - raise e - end - - line_editor.finalize - Reline::IOGate.deprep(otio) - end - - # Keystrokes of GNU Readline will timeout it with the specification of - # "keyseq-timeout" when waiting for the 2nd character after the 1st one. - # If the 2nd character comes after 1st ESC without timeout it has a - # meta-property of meta-key to discriminate modified key with meta-key - # from multibyte characters that come with 8th bit on. - # - # GNU Readline will wait for the 2nd character with "keyseq-timeout" - # milli-seconds but wait forever after 3rd characters. - private def read_io(keyseq_timeout, &block) - buffer = [] - loop do - c = Reline::IOGate.getc - buffer << c - result = key_stroke.match_status(buffer) - 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 - 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)]) - break - else - if key_stroke.match_status(buffer.dup.push(succ_c)) == :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 - break - else - Reline::IOGate.ungetc(succ_c) - end - 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 - - private 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 - - private def may_req_ambiguous_char_width - @ambiguous_width = 2 if Reline::IOGate == Reline::GeneralIO or STDOUT.is_a?(File) - return if ambiguous_width - Reline::IOGate.move_cursor_column(0) - output.write "\u{25bd}" - @ambiguous_width = Reline::IOGate.cursor_pos.x - Reline::IOGate.move_cursor_column(0) - Reline::IOGate.erase_after_cursor - end - end - - extend Forwardable - extend SingleForwardable - - #-------------------------------------------------------- - # Documented API - #-------------------------------------------------------- - - (Core::ATTR_READER_NAMES).each { |name| - def_single_delegators :core, "#{name}", "#{name}=" - } - def_single_delegators :core, :input=, :output= - def_single_delegators :core, :vi_editing_mode, :emacs_editing_mode - def_single_delegators :core, :readline - def_single_delegators :core, :completion_case_fold, :completion_case_fold= - def_single_delegators :core, :completion_quote_character - def_instance_delegators self, :readline - private :readline - - - #-------------------------------------------------------- - # Undocumented API - #-------------------------------------------------------- - - # Testable in original - def_single_delegators :core, :get_screen_size - def_single_delegators :line_editor, :eof? - def_instance_delegators self, :eof? - def_single_delegators :line_editor, :delete_text - def_single_delegator :line_editor, :line, :line_buffer - def_single_delegator :line_editor, :byte_pointer, :point - def_single_delegator :line_editor, :byte_pointer=, :point= - - def self.insert_text(*args, &block) - line_editor.insert_text(*args, &block) - self - end - - # Untestable in original - def_single_delegator :line_editor, :rerender, :redisplay - def_single_delegators :core, :vi_editing_mode?, :emacs_editing_mode? - def_single_delegators :core, :ambiguous_width - def_single_delegators :core, :last_incremental_search - def_single_delegators :core, :last_incremental_search= - - def_single_delegators :core, :readmultiline - def_instance_delegators self, :readmultiline - private :readmultiline - - def self.encoding_system_needs - self.core.encoding - end - - def self.core - @core ||= Core.new { |core| - core.config = Reline::Config.new - core.key_stroke = Reline::KeyStroke.new(core.config) - core.line_editor = Reline::LineEditor.new(core.config, Reline::IOGate.encoding) - - core.basic_word_break_characters = " \t\n`><=;|&{(" - core.completer_word_break_characters = " \t\n`><=;|&{(" - core.basic_quote_characters = '"\'' - core.completer_quote_characters = '"\'' - core.filename_quote_characters = "" - core.special_prefixes = "" - } - end - - def self.line_editor - core.line_editor - end -end - -if RbConfig::CONFIG['host_os'] =~ /mswin|msys|mingw|cygwin|bccwin|wince|emc/ - require 'reline/windows' - if Reline::Windows.msys_tty? - require 'reline/ansi' - Reline::IOGate = Reline::ANSI - else - Reline::IOGate = Reline::Windows - end -else - require 'reline/ansi' - Reline::IOGate = Reline::ANSI -end -Reline::HISTORY = Reline::History.new(Reline.core.config) -require 'reline/general_io' |