2019-04-27 01:53:09 -04:00
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require 'io/console'
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2019-05-24 10:38:40 -04:00
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require 'timeout'
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2019-07-14 14:10:26 -04:00
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require 'forwardable'
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2019-04-27 01:53:09 -04:00
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require 'reline/version'
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require 'reline/config'
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require 'reline/key_actor'
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require 'reline/key_stroke'
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require 'reline/line_editor'
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2019-06-23 00:29:09 -04:00
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require 'reline/history'
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2020-08-11 23:48:58 -04:00
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require 'rbconfig'
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2019-04-27 01:53:09 -04:00
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module Reline
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FILENAME_COMPLETION_PROC = nil
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USERNAME_COMPLETION_PROC = nil
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Key = Struct.new('Key', :char, :combined_char, :with_meta)
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CursorPos = Struct.new(:x, :y)
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class Core
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ATTR_READER_NAMES = %i(
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completion_append_character
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basic_word_break_characters
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completer_word_break_characters
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basic_quote_characters
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completer_quote_characters
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filename_quote_characters
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special_prefixes
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completion_proc
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output_modifier_proc
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prompt_proc
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auto_indent_proc
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pre_input_hook
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dig_perfect_match_proc
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).each(&method(:attr_reader))
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attr_accessor :config
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attr_accessor :key_stroke
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attr_accessor :line_editor
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attr_accessor :ambiguous_width
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attr_accessor :last_incremental_search
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attr_reader :output
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def initialize
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self.output = STDOUT
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yield self
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@completion_quote_character = nil
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@bracketed_paste_finished = false
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end
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2020-01-25 09:50:10 -05:00
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def encoding
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Reline::IOGate.encoding
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end
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def completion_append_character=(val)
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if val.nil?
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@completion_append_character = nil
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elsif val.size == 1
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@completion_append_character = val.encode(Reline::IOGate.encoding)
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elsif val.size > 1
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@completion_append_character = val[0].encode(Reline::IOGate.encoding)
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else
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@completion_append_character = nil
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end
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end
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def basic_word_break_characters=(v)
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@basic_word_break_characters = v.encode(Reline::IOGate.encoding)
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end
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def completer_word_break_characters=(v)
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@completer_word_break_characters = v.encode(Reline::IOGate.encoding)
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end
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def basic_quote_characters=(v)
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@basic_quote_characters = v.encode(Reline::IOGate.encoding)
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end
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def completer_quote_characters=(v)
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@completer_quote_characters = v.encode(Reline::IOGate.encoding)
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end
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def filename_quote_characters=(v)
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@filename_quote_characters = v.encode(Reline::IOGate.encoding)
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end
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def special_prefixes=(v)
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@special_prefixes = v.encode(Reline::IOGate.encoding)
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end
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def completion_case_fold=(v)
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@config.completion_ignore_case = v
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end
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def completion_case_fold
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@config.completion_ignore_case
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end
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2019-12-10 21:12:54 -05:00
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def completion_quote_character
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@completion_quote_character
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end
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def completion_proc=(p)
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raise ArgumentError unless p.respond_to?(:call) or p.nil?
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@completion_proc = p
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end
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2019-05-12 13:26:31 -04:00
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def output_modifier_proc=(p)
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raise ArgumentError unless p.respond_to?(:call) or p.nil?
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@output_modifier_proc = p
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end
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def prompt_proc=(p)
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raise ArgumentError unless p.respond_to?(:call) or p.nil?
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@prompt_proc = p
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end
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def auto_indent_proc=(p)
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raise ArgumentError unless p.respond_to?(:call) or p.nil?
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@auto_indent_proc = p
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end
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def pre_input_hook=(p)
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@pre_input_hook = p
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end
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def dig_perfect_match_proc=(p)
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raise ArgumentError unless p.respond_to?(:call) or p.nil?
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@dig_perfect_match_proc = p
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end
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2019-04-30 11:45:54 -04:00
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def input=(val)
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raise TypeError unless val.respond_to?(:getc) or val.nil?
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if val.respond_to?(:getc)
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if defined?(Reline::ANSI) and Reline::IOGate == Reline::ANSI
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Reline::ANSI.input = val
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elsif Reline::IOGate == Reline::GeneralIO
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Reline::GeneralIO.input = val
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end
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end
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end
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def output=(val)
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raise TypeError unless val.respond_to?(:write) or val.nil?
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@output = val
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if defined?(Reline::ANSI) and Reline::IOGate == Reline::ANSI
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Reline::ANSI.output = val
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end
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end
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def vi_editing_mode
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config.editing_mode = :vi_insert
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nil
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end
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def emacs_editing_mode
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config.editing_mode = :emacs
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nil
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end
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def vi_editing_mode?
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config.editing_mode_is?(:vi_insert, :vi_command)
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end
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def emacs_editing_mode?
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config.editing_mode_is?(:emacs)
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end
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def get_screen_size
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Reline::IOGate.get_screen_size
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end
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def readmultiline(prompt = '', add_hist = false, &confirm_multiline_termination)
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unless confirm_multiline_termination
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raise ArgumentError.new('#readmultiline needs block to confirm multiline termination')
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end
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inner_readline(prompt, add_hist, true, &confirm_multiline_termination)
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whole_buffer = line_editor.whole_buffer.dup
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whole_buffer.taint if RUBY_VERSION < '2.7'
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2020-02-22 22:35:24 -05:00
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if add_hist and whole_buffer and whole_buffer.chomp("\n").size > 0
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Reline::HISTORY << whole_buffer
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end
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2019-04-27 01:53:09 -04:00
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2019-07-14 14:10:26 -04:00
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line_editor.reset_line if line_editor.whole_buffer.nil?
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whole_buffer
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end
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def readline(prompt = '', add_hist = false)
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inner_readline(prompt, add_hist, false)
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line = line_editor.line.dup
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line.taint if RUBY_VERSION < '2.7'
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2020-02-22 22:35:24 -05:00
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if add_hist and line and line.chomp("\n").size > 0
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Reline::HISTORY << line.chomp("\n")
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end
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line_editor.reset_line if line_editor.line.nil?
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line
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end
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2019-08-26 16:08:58 -04:00
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private def inner_readline(prompt, add_hist, multiline, &confirm_multiline_termination)
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if ENV['RELINE_STDERR_TTY']
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if Reline::IOGate.win?
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$stderr = File.open(ENV['RELINE_STDERR_TTY'], 'a')
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else
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$stderr.reopen(ENV['RELINE_STDERR_TTY'], 'w')
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end
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$stderr.sync = true
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$stderr.puts "Reline is used by #{Process.pid}"
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end
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otio = Reline::IOGate.prep
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may_req_ambiguous_char_width
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line_editor.reset(prompt, encoding: Reline::IOGate.encoding)
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if multiline
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line_editor.multiline_on
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if block_given?
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line_editor.confirm_multiline_termination_proc = confirm_multiline_termination
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end
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else
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line_editor.multiline_off
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end
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line_editor.output = output
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line_editor.completion_proc = completion_proc
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2019-10-04 04:03:32 -04:00
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line_editor.completion_append_character = completion_append_character
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2019-07-14 14:10:26 -04:00
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line_editor.output_modifier_proc = output_modifier_proc
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line_editor.prompt_proc = prompt_proc
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line_editor.auto_indent_proc = auto_indent_proc
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line_editor.dig_perfect_match_proc = dig_perfect_match_proc
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line_editor.pre_input_hook = pre_input_hook
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unless config.test_mode
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config.read
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config.reset_default_key_bindings
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Reline::IOGate::RAW_KEYSTROKE_CONFIG.each_pair do |key, func|
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config.add_default_key_binding(key, func)
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end
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2019-06-01 19:50:01 -04:00
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end
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2019-04-27 01:53:09 -04:00
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2020-07-12 17:47:43 -04:00
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line_editor.rerender
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2019-07-14 14:10:26 -04:00
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begin
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prev_pasting_state = false
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loop do
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prev_pasting_state = Reline::IOGate.in_pasting?
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2019-07-14 14:10:26 -04:00
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read_io(config.keyseq_timeout) { |inputs|
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inputs.each { |c|
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line_editor.input_key(c)
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line_editor.rerender
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}
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2020-11-26 05:13:34 -05:00
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if @bracketed_paste_finished
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line_editor.rerender_all
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@bracketed_paste_finished = false
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end
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2019-04-27 01:53:09 -04:00
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}
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2020-10-19 19:39:12 -04:00
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if prev_pasting_state == true and not Reline::IOGate.in_pasting? and not line_editor.finished?
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prev_pasting_state = false
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line_editor.rerender_all
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end
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2019-07-14 14:10:26 -04:00
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break if line_editor.finished?
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end
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Reline::IOGate.move_cursor_column(0)
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2020-07-03 11:42:06 -04:00
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rescue Errno::EIO
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# Maybe the I/O has been closed.
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rescue StandardError => e
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line_editor.finalize
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Reline::IOGate.deprep(otio)
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raise e
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2019-04-27 01:53:09 -04:00
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end
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2019-07-14 14:10:26 -04:00
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line_editor.finalize
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2019-05-15 02:52:12 -04:00
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Reline::IOGate.deprep(otio)
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2019-04-27 01:53:09 -04:00
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end
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2019-07-14 14:10:26 -04:00
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# Keystrokes of GNU Readline will timeout it with the specification of
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# "keyseq-timeout" when waiting for the 2nd character after the 1st one.
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# If the 2nd character comes after 1st ESC without timeout it has a
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# meta-property of meta-key to discriminate modified key with meta-key
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# from multibyte characters that come with 8th bit on.
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#
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# GNU Readline will wait for the 2nd character with "keyseq-timeout"
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# milli-seconds but wait forever after 3rd characters.
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2019-08-26 16:08:58 -04:00
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private def read_io(keyseq_timeout, &block)
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2019-07-14 14:10:26 -04:00
|
|
|
buffer = []
|
|
|
|
loop do
|
|
|
|
c = Reline::IOGate.getc
|
2020-11-26 05:13:34 -05:00
|
|
|
if c == -1
|
|
|
|
result = :unmatched
|
|
|
|
@bracketed_paste_finished = true
|
|
|
|
else
|
|
|
|
buffer << c
|
|
|
|
result = key_stroke.match_status(buffer)
|
|
|
|
end
|
2019-07-14 14:10:26 -04:00
|
|
|
case result
|
|
|
|
when :matched
|
2019-11-08 02:17:53 -05:00
|
|
|
expanded = key_stroke.expand(buffer).map{ |expanded_c|
|
|
|
|
Reline::Key.new(expanded_c, expanded_c, false)
|
|
|
|
}
|
|
|
|
block.(expanded)
|
2019-07-14 14:10:26 -04:00
|
|
|
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)])
|
2019-06-04 22:29:41 -04:00
|
|
|
break
|
|
|
|
else
|
2019-07-14 14:10:26 -04:00
|
|
|
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
|
2019-06-04 22:29:41 -04:00
|
|
|
end
|
|
|
|
end
|
2019-07-14 14:10:26 -04:00
|
|
|
when :unmatched
|
|
|
|
if buffer.size == 1 and c == "\e".ord
|
2019-09-08 12:24:48 -04:00
|
|
|
read_escaped_key(keyseq_timeout, c, block)
|
2019-07-14 14:10:26 -04:00
|
|
|
else
|
2019-11-08 02:17:53 -05:00
|
|
|
expanded = buffer.map{ |expanded_c|
|
|
|
|
Reline::Key.new(expanded_c, expanded_c, false)
|
|
|
|
}
|
|
|
|
block.(expanded)
|
2019-07-14 14:10:26 -04:00
|
|
|
end
|
|
|
|
break
|
2019-06-04 22:29:41 -04:00
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
2019-09-08 12:24:48 -04:00
|
|
|
private def read_escaped_key(keyseq_timeout, c, block)
|
2019-07-14 14:10:26 -04:00
|
|
|
begin
|
|
|
|
escaped_c = nil
|
|
|
|
Timeout.timeout(keyseq_timeout / 1000.0) {
|
|
|
|
escaped_c = Reline::IOGate.getc
|
|
|
|
}
|
|
|
|
rescue Timeout::Error # independent ESC
|
2019-06-04 22:29:41 -04:00
|
|
|
block.([Reline::Key.new(c, c, false)])
|
|
|
|
else
|
2019-07-14 14:10:26 -04:00
|
|
|
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
|
2019-06-04 22:29:41 -04:00
|
|
|
end
|
|
|
|
end
|
2019-07-14 14:10:26 -04:00
|
|
|
|
2019-08-26 16:08:58 -04:00
|
|
|
private def may_req_ambiguous_char_width
|
2019-08-26 16:33:27 -04:00
|
|
|
@ambiguous_width = 2 if Reline::IOGate == Reline::GeneralIO or STDOUT.is_a?(File)
|
2019-10-27 18:23:05 -04:00
|
|
|
return if ambiguous_width
|
2019-07-14 14:10:26 -04:00
|
|
|
Reline::IOGate.move_cursor_column(0)
|
2020-03-24 00:56:22 -04:00
|
|
|
begin
|
|
|
|
output.write "\u{25bd}"
|
|
|
|
rescue Encoding::UndefinedConversionError
|
|
|
|
# LANG=C
|
|
|
|
@ambiguous_width = 1
|
|
|
|
else
|
|
|
|
@ambiguous_width = Reline::IOGate.cursor_pos.x
|
|
|
|
end
|
2019-07-14 14:10:26 -04:00
|
|
|
Reline::IOGate.move_cursor_column(0)
|
|
|
|
Reline::IOGate.erase_after_cursor
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
2019-08-26 16:07:55 -04:00
|
|
|
extend Forwardable
|
2019-07-14 14:10:26 -04:00
|
|
|
extend SingleForwardable
|
|
|
|
|
|
|
|
#--------------------------------------------------------
|
|
|
|
# Documented API
|
|
|
|
#--------------------------------------------------------
|
|
|
|
|
2019-12-09 17:01:26 -05:00
|
|
|
(Core::ATTR_READER_NAMES).each { |name|
|
2019-08-26 16:07:55 -04:00
|
|
|
def_single_delegators :core, "#{name}", "#{name}="
|
2019-07-14 14:10:26 -04:00
|
|
|
}
|
2019-08-26 16:07:55 -04:00
|
|
|
def_single_delegators :core, :input=, :output=
|
|
|
|
def_single_delegators :core, :vi_editing_mode, :emacs_editing_mode
|
|
|
|
def_single_delegators :core, :readline
|
2019-12-09 17:01:26 -05:00
|
|
|
def_single_delegators :core, :completion_case_fold, :completion_case_fold=
|
2019-12-10 21:12:54 -05:00
|
|
|
def_single_delegators :core, :completion_quote_character
|
2019-08-26 16:59:46 -04:00
|
|
|
def_instance_delegators self, :readline
|
2019-11-10 02:00:41 -05:00
|
|
|
private :readline
|
2019-07-14 14:10:26 -04:00
|
|
|
|
|
|
|
|
|
|
|
#--------------------------------------------------------
|
|
|
|
# Undocumented API
|
|
|
|
#--------------------------------------------------------
|
|
|
|
|
|
|
|
# Testable in original
|
2019-08-26 16:07:55 -04:00
|
|
|
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=
|
2019-07-14 14:10:26 -04:00
|
|
|
|
|
|
|
def self.insert_text(*args, &block)
|
|
|
|
line_editor.insert_text(*args, &block)
|
|
|
|
self
|
2019-06-04 22:29:41 -04:00
|
|
|
end
|
|
|
|
|
2019-07-14 14:10:26 -04:00
|
|
|
# Untestable in original
|
2019-08-26 16:07:55 -04:00
|
|
|
def_single_delegator :line_editor, :rerender, :redisplay
|
|
|
|
def_single_delegators :core, :vi_editing_mode?, :emacs_editing_mode?
|
|
|
|
def_single_delegators :core, :ambiguous_width
|
2019-12-02 11:17:07 -05:00
|
|
|
def_single_delegators :core, :last_incremental_search
|
|
|
|
def_single_delegators :core, :last_incremental_search=
|
2019-07-14 14:10:26 -04:00
|
|
|
|
2019-08-26 16:07:55 -04:00
|
|
|
def_single_delegators :core, :readmultiline
|
|
|
|
def_instance_delegators self, :readmultiline
|
2019-11-10 02:00:41 -05:00
|
|
|
private :readmultiline
|
2019-07-14 14:10:26 -04:00
|
|
|
|
2020-01-12 08:24:17 -05:00
|
|
|
def self.encoding_system_needs
|
|
|
|
self.core.encoding
|
|
|
|
end
|
|
|
|
|
2019-07-14 14:10:26 -04:00
|
|
|
def self.core
|
2020-01-25 09:50:10 -05:00
|
|
|
@core ||= Core.new { |core|
|
2019-07-14 14:10:26 -04:00
|
|
|
core.config = Reline::Config.new
|
|
|
|
core.key_stroke = Reline::KeyStroke.new(core.config)
|
2020-01-12 08:24:17 -05:00
|
|
|
core.line_editor = Reline::LineEditor.new(core.config, Reline::IOGate.encoding)
|
2019-07-14 14:10:26 -04:00
|
|
|
|
|
|
|
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 = ""
|
|
|
|
}
|
2019-04-27 01:53:09 -04:00
|
|
|
end
|
|
|
|
|
2019-07-14 14:10:26 -04:00
|
|
|
def self.line_editor
|
|
|
|
core.line_editor
|
2019-04-27 01:53:09 -04:00
|
|
|
end
|
|
|
|
end
|
2019-05-12 11:22:27 -04:00
|
|
|
|
2019-11-20 03:55:03 -05:00
|
|
|
if RbConfig::CONFIG['host_os'] =~ /mswin|msys|mingw|cygwin|bccwin|wince|emc/
|
2019-05-12 11:22:27 -04:00
|
|
|
require 'reline/windows'
|
2020-01-18 12:46:37 -05:00
|
|
|
if Reline::Windows.msys_tty?
|
2019-11-20 03:55:03 -05:00
|
|
|
require 'reline/ansi'
|
|
|
|
Reline::IOGate = Reline::ANSI
|
|
|
|
else
|
|
|
|
Reline::IOGate = Reline::Windows
|
|
|
|
end
|
2019-05-12 11:22:27 -04:00
|
|
|
else
|
|
|
|
require 'reline/ansi'
|
2019-05-15 02:52:12 -04:00
|
|
|
Reline::IOGate = Reline::ANSI
|
2019-05-12 11:22:27 -04:00
|
|
|
end
|
2020-01-12 08:24:17 -05:00
|
|
|
Reline::HISTORY = Reline::History.new(Reline.core.config)
|
2019-05-12 11:22:27 -04:00
|
|
|
require 'reline/general_io'
|