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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2019-04-27 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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module Reline
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2019-05-24 10:38:40 -04:00
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Key = Struct.new('Key', :char, :combined_char, :with_meta)
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2019-04-27 01:53:09 -04:00
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extend self
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FILENAME_COMPLETION_PROC = nil
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USERNAME_COMPLETION_PROC = nil
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if RUBY_PLATFORM =~ /mswin|mingw/
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IS_WINDOWS = true
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else
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IS_WINDOWS = false
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end
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CursorPos = Struct.new(:x, :y)
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2019-05-12 08:22:04 -04:00
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@@config = Reline::Config.new
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2019-06-04 22:29:41 -04:00
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@@key_stroke = Reline::KeyStroke.new(@@config)
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2019-05-12 08:22:04 -04:00
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@@line_editor = Reline::LineEditor.new(@@config)
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2019-04-27 01:53:09 -04:00
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@@ambiguous_width = nil
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2019-05-12 14:26:10 -04:00
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HISTORY = Class.new(Array) {
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2019-05-28 21:04:39 -04:00
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def initialize(config)
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@config = config
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end
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2019-05-12 14:26:10 -04:00
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def to_s
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'HISTORY'
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end
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def delete_at(index)
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index = check_index(index)
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super(index)
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end
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def [](index)
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index = check_index(index)
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super(index)
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end
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def []=(index, val)
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index = check_index(index)
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super(index, String.new(val, encoding: Encoding::default_external))
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end
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2019-05-28 21:04:39 -04:00
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def concat(*val)
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val.each do |v|
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push(*v)
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end
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end
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2019-05-12 14:26:10 -04:00
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def push(*val)
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2019-05-28 21:04:39 -04:00
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diff = size + val.size - @config.history_size
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if diff > 0
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if diff <= size
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shift(diff)
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else
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diff -= size
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clear
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val.shift(diff)
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end
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end
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super(*(val.map{ |v| String.new(v, encoding: Encoding::default_external) }))
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end
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def <<(val)
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shift if size + 1 > @config.history_size
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super(String.new(val, encoding: Encoding::default_external))
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end
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private def check_index(index)
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index += size if index < 0
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2019-05-28 21:04:39 -04:00
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raise RangeError.new("index=<#{index}>") if index < -@config.history_size or @config.history_size < index
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2019-05-12 14:26:10 -04:00
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raise IndexError.new("index=<#{index}>") if index < 0 or size <= index
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index
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end
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2019-05-28 21:04:39 -04:00
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private def set_config(config)
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@config = config
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end
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}.new(@@config)
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2019-05-12 14:26:10 -04:00
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2019-05-13 12:10:15 -04:00
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@@completion_append_character = nil
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def self.completion_append_character
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@@completion_append_character
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end
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2019-04-27 01:53:09 -04:00
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def self.completion_append_character=(val)
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if val.nil?
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@@completion_append_character = nil
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2019-04-27 01:53:09 -04:00
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elsif val.size == 1
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2019-05-13 12:10:15 -04:00
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@@completion_append_character = val.encode(Encoding::default_external)
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2019-04-27 01:53:09 -04:00
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elsif val.size > 1
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2019-05-13 12:10:15 -04:00
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@@completion_append_character = val[0].encode(Encoding::default_external)
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2019-04-27 01:53:09 -04:00
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else
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@@completion_append_character = nil
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2019-04-27 01:53:09 -04:00
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end
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end
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@@basic_word_break_characters = " \t\n`><=;|&{("
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def self.basic_word_break_characters
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@@basic_word_break_characters
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end
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def self.basic_word_break_characters=(v)
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@@basic_word_break_characters = v.encode(Encoding::default_external)
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2019-04-27 01:53:09 -04:00
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end
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@@completer_word_break_characters = @@basic_word_break_characters.dup
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2019-05-13 12:10:15 -04:00
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def self.completer_word_break_characters
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@@completer_word_break_characters
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end
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def self.completer_word_break_characters=(v)
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@@completer_word_break_characters = v.encode(Encoding::default_external)
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end
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@@basic_quote_characters = '"\''
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def self.basic_quote_characters
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@@basic_quote_characters
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end
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def self.basic_quote_characters=(v)
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@@basic_quote_characters = v.encode(Encoding::default_external)
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end
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@@completer_quote_characters = '"\''
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def self.completer_quote_characters
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@@completer_quote_characters
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end
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def self.completer_quote_characters=(v)
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@@completer_quote_characters = v.encode(Encoding::default_external)
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end
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@@filename_quote_characters = ''
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def self.filename_quote_characters
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@@filename_quote_characters
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end
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def self.filename_quote_characters=(v)
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@@filename_quote_characters = v.encode(Encoding::default_external)
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end
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@@special_prefixes = ''
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def self.special_prefixes
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@@special_prefixes
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end
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def self.special_prefixes=(v)
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@@special_prefixes = v.encode(Encoding::default_external)
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end
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@@completion_case_fold = nil
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def self.completion_case_fold
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@@completion_case_fold
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end
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def self.completion_case_fold=(v)
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@@completion_case_fold = v
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end
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2019-04-27 01:53:09 -04:00
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@@completion_proc = nil
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def self.completion_proc
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@@completion_proc
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end
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def self.completion_proc=(p)
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raise ArgumentError unless p.is_a?(Proc)
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2019-04-27 01:53:09 -04:00
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@@completion_proc = p
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end
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2019-05-25 00:21:22 -04:00
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@@output_modifier_proc = nil
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def self.output_modifier_proc
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@@output_modifier_proc
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end
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def self.output_modifier_proc=(p)
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raise ArgumentError unless p.is_a?(Proc)
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@@output_modifier_proc = p
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end
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2019-05-12 13:20:20 -04:00
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@@pre_input_hook = nil
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def self.pre_input_hook
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@@pre_input_hook
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end
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def self.pre_input_hook=(p)
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@@pre_input_hook = p
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end
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2019-04-27 01:53:09 -04:00
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@@dig_perfect_match_proc = nil
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def self.dig_perfect_match_proc
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@@dig_perfect_match_proc
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end
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def self.dig_perfect_match_proc=(p)
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@@dig_perfect_match_proc = p
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end
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2019-05-12 13:26:31 -04:00
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def self.insert_text(text)
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@@line_editor&.insert_text(text)
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self
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end
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def self.redisplay
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@@line_editor&.rerender
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end
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def self.line_buffer
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@@line_editor&.line
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end
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def self.point
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@@line_editor ? @@line_editor.byte_pointer : 0
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end
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def self.point=(val)
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@@line_editor.byte_pointer = val
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end
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2019-04-30 11:45:54 -04:00
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def self.delete_text(start = nil, length = nil)
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2019-05-12 13:26:31 -04:00
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@@line_editor&.delete_text(start, length)
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2019-04-30 11:45:54 -04:00
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end
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2019-05-17 14:12:53 -04:00
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private_class_method def self.test_mode
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remove_const('IOGate') if const_defined?('IOGate')
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const_set('IOGate', Reline::GeneralIO)
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2019-06-01 18:39:12 -04:00
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@@config.instance_variable_set(:@test_mode, true)
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@@config.reset
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2019-05-17 14:12:53 -04:00
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end
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2019-05-12 13:14:48 -04:00
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def self.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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2019-05-17 14:12:53 -04:00
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if defined?(Reline::ANSI) and IOGate == Reline::ANSI
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Reline::ANSI.input = val
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elsif IOGate == Reline::GeneralIO
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Reline::GeneralIO.input = val
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end
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2019-05-12 13:14:48 -04:00
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end
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end
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@@output = STDOUT
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def self.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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2019-05-17 14:12:53 -04:00
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if defined?(Reline::ANSI) and IOGate == Reline::ANSI
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Reline::ANSI.output = val
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end
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2019-05-12 13:14:48 -04:00
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end
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2019-05-12 13:26:31 -04:00
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def self.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 self.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 self.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 self.emacs_editing_mode?
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@@config.editing_mode_is?(:emacs)
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end
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def self.get_screen_size
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2019-05-15 02:52:12 -04:00
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Reline::IOGate.get_screen_size
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2019-05-12 13:26:31 -04:00
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end
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2019-05-26 21:09:21 -04:00
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def eof?
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@@line_editor.eof?
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end
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2019-04-27 01:53:09 -04:00
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def readmultiline(prompt = '', add_hist = false, &confirm_multiline_termination)
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2019-05-24 11:38:57 -04:00
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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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2019-06-01 18:21:59 -04:00
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inner_readline(prompt, add_hist, true, &confirm_multiline_termination)
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2019-04-27 01:53:09 -04:00
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2019-05-12 08:22:04 -04:00
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whole_buffer = @@line_editor.whole_buffer.dup
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whole_buffer.taint
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if add_hist and whole_buffer and whole_buffer.chomp.size > 0
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Reline::HISTORY << whole_buffer
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2019-04-27 01:53:09 -04:00
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end
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2019-05-12 13:26:31 -04:00
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@@line_editor.reset_line if @@line_editor.whole_buffer.nil?
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2019-05-12 08:22:04 -04:00
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whole_buffer
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2019-04-27 01:53:09 -04:00
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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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2019-05-12 08:22:04 -04:00
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line = @@line_editor.line.dup
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line.taint
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if add_hist and line and line.chomp.size > 0
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Reline::HISTORY << line.chomp
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2019-04-27 01:53:09 -04:00
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end
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2019-05-12 13:26:31 -04:00
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@@line_editor.reset_line if @@line_editor.line.nil?
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2019-05-12 08:22:04 -04:00
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line
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2019-04-27 01:53:09 -04:00
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end
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def inner_readline(prompt, add_hist, multiline, &confirm_multiline_termination)
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2019-05-21 13:13:57 -04:00
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if ENV['RELINE_STDERR_TTY']
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$stderr.reopen(ENV['RELINE_STDERR_TTY'], 'w')
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2019-05-31 09:53:01 -04:00
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$stderr.sync = true
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2019-05-21 13:13:57 -04:00
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end
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2019-05-15 02:52:12 -04:00
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otio = Reline::IOGate.prep
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2019-04-27 01:53:09 -04:00
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may_req_ambiguous_char_width
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2019-05-12 11:22:27 -04:00
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@@line_editor.reset(prompt)
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2019-04-27 01:53:09 -04:00
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if multiline
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2019-05-12 08:22:04 -04:00
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@@line_editor.multiline_on
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2019-04-27 01:53:09 -04:00
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if block_given?
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2019-05-12 08:22:04 -04:00
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@@line_editor.confirm_multiline_termination_proc = confirm_multiline_termination
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2019-04-27 01:53:09 -04:00
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end
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2019-05-12 08:22:04 -04:00
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else
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@@line_editor.multiline_off
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2019-04-27 01:53:09 -04:00
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end
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2019-05-12 13:14:48 -04:00
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@@line_editor.output = @@output
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2019-05-12 08:22:04 -04:00
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@@line_editor.completion_proc = @@completion_proc
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2019-05-25 00:21:22 -04:00
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@@line_editor.output_modifier_proc = @@output_modifier_proc
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2019-05-12 08:22:04 -04:00
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@@line_editor.dig_perfect_match_proc = @@dig_perfect_match_proc
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2019-05-12 13:20:20 -04:00
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@@line_editor.pre_input_hook = @@pre_input_hook
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2019-05-12 08:22:04 -04:00
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@@line_editor.rerender
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2019-04-27 01:53:09 -04:00
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2019-06-01 19:50:01 -04:00
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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|
|
|
|
|
@@config.add_default_key_binding(key, func)
|
|
|
|
end
|
2019-05-31 20:05:58 -04:00
|
|
|
end
|
2019-04-27 01:53:09 -04:00
|
|
|
|
|
|
|
begin
|
2019-05-12 13:26:31 -04:00
|
|
|
loop do
|
2019-06-04 22:29:41 -04:00
|
|
|
read_io(@@config.keyseq_timeout) { |inputs|
|
2019-04-27 01:53:09 -04:00
|
|
|
inputs.each { |c|
|
2019-05-12 08:22:04 -04:00
|
|
|
@@line_editor.input_key(c)
|
|
|
|
@@line_editor.rerender
|
2019-04-27 01:53:09 -04:00
|
|
|
}
|
|
|
|
}
|
2019-05-12 08:22:04 -04:00
|
|
|
break if @@line_editor.finished?
|
2019-04-27 01:53:09 -04:00
|
|
|
end
|
2019-05-15 02:52:12 -04:00
|
|
|
Reline::IOGate.move_cursor_column(0)
|
2019-04-27 01:53:09 -04:00
|
|
|
rescue StandardError => e
|
2019-05-26 18:35:35 -04:00
|
|
|
@@line_editor.finalize
|
2019-05-15 02:52:12 -04:00
|
|
|
Reline::IOGate.deprep(otio)
|
2019-04-27 01:53:09 -04:00
|
|
|
raise e
|
|
|
|
end
|
|
|
|
|
2019-05-26 18:35:35 -04:00
|
|
|
@@line_editor.finalize
|
2019-05-15 02:52:12 -04:00
|
|
|
Reline::IOGate.deprep(otio)
|
2019-04-27 01:53:09 -04:00
|
|
|
end
|
|
|
|
|
2019-06-04 22:29:41 -04:00
|
|
|
# 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.
|
|
|
|
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
|
|
|
|
block.(@@key_stroke.expand(buffer).map{ |c| Reline::Key.new(c, c, false) })
|
|
|
|
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, buffer, block)
|
|
|
|
else
|
|
|
|
block.(buffer.map{ |c| Reline::Key.new(c, c, false) })
|
|
|
|
end
|
|
|
|
break
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
|
|
|
|
|
|
def read_escaped_key(keyseq_timeout, buffer, 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
|
|
|
|
|
2019-04-27 01:53:09 -04:00
|
|
|
def may_req_ambiguous_char_width
|
2019-05-15 02:52:12 -04:00
|
|
|
@@ambiguous_width = 2 if Reline::IOGate == Reline::GeneralIO or STDOUT.is_a?(File)
|
2019-04-27 01:53:09 -04:00
|
|
|
return if @@ambiguous_width
|
2019-05-15 02:52:12 -04:00
|
|
|
Reline::IOGate.move_cursor_column(0)
|
2019-04-27 01:53:09 -04:00
|
|
|
print "\u{25bd}"
|
2019-05-15 02:52:12 -04:00
|
|
|
@@ambiguous_width = Reline::IOGate.cursor_pos.x
|
|
|
|
Reline::IOGate.move_cursor_column(0)
|
|
|
|
Reline::IOGate.erase_after_cursor
|
2019-04-27 01:53:09 -04:00
|
|
|
end
|
|
|
|
|
|
|
|
def self.ambiguous_width
|
|
|
|
@@ambiguous_width
|
|
|
|
end
|
|
|
|
end
|
2019-05-12 11:22:27 -04:00
|
|
|
|
|
|
|
if Reline::IS_WINDOWS
|
|
|
|
require 'reline/windows'
|
2019-05-15 02:52:12 -04:00
|
|
|
Reline::IOGate = Reline::Windows
|
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
|
|
|
|
require 'reline/general_io'
|