Refactoring Reline accessor.

1 files changed, 133 insertions, 0 deletions

diff --git a/lib/reline2.rb b/lib/reline2.rb
new file mode 100644
index 0000000000..e5a9ff763a
--- /dev/null
+++ b/lib/reline2.rb
@@ -0,0 +1,133 @@
+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'
+
+module Reline2
+  FILENAME_COMPLETION_PROC = nil
+  USERNAME_COMPLETION_PROC = nil
+
+  class Core
+    Key = Struct.new('Key', :char, :combined_char, :with_meta)
+    if RUBY_PLATFORM =~ /mswin|mingw/
+      IS_WINDOWS = true
+    else
+      IS_WINDOWS = false
+    end
+
+    CursorPos = Struct.new(:x, :y)
+
+    ATTR_ACCESSOR_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_case_fold
+      completion_proc
+      output_modifier_proc
+      prompt_proc
+      auto_indent_proc
+      pre_input_hook
+      dig_perfect_match_proc
+    ).freeze
+    ATTR_ACCESSOR_NAMES.each &method(:attr_accessor)
+
+    def initialize
+      @config = Reline::Config.new
+      @line_editor = Reline::LineEditor.new(@config)
+      @ambiguous_width = nil
+
+      self.basic_word_break_characters = " \t\n`><=;|&{("
+      self.completer_word_break_characters = " \t\n`><=;|&{("
+      self.basic_quote_characters = '"\''
+      self.completer_quote_characters = '"\''
+      self.filename_quote_characters = ""
+      self.special_prefixes = ""
+    end
+
+    def completion_append_character=(val)
+      if val.nil?
+        @completion_append_character = nil
+      elsif val.size == 1
+        @completion_append_character = val.encode(Encoding::default_external)
+      elsif val.size > 1
+        @completion_append_character = val[0].encode(Encoding::default_external)
+      else
+        @completion_append_character = nil
+      end
+    end
+
+    def basic_word_break_characters=(v)
+      @basic_word_break_characters = v.encode(Encoding::default_external)
+    end
+
+    def completer_word_break_characters=(v)
+      @completer_word_break_characters = v.encode(Encoding::default_external)
+    end
+
+    def basic_quote_characters=(v)
+      @basic_quote_characters = v.encode(Encoding::default_external)
+    end
+
+    def completer_quote_characters=(v)
+      @completer_quote_characters = v.encode(Encoding::default_external)
+    end
+
+    def filename_quote_characters=(v)
+      @filename_quote_characters = v.encode(Encoding::default_external)
+    end
+
+    def special_prefixes=(v)
+      @special_prefixes = v.encode(Encoding::default_external)
+    end
+
+    def completion_proc=(p)
+      raise ArgumentError unless p.is_a?(Proc)
+      @completion_proc = p
+    end
+
+    def output_modifier_proc=(p)
+      raise ArgumentError unless p.is_a?(Proc)
+      @output_modifier_proc = p
+    end
+
+    def prompt_proc=(p)
+      raise ArgumentError unless p.is_a?(Proc)
+      @prompt_proc = p
+    end
+
+    def auto_indent_proc=(p)
+      raise ArgumentError unless p.is_a?(Proc)
+      @auto_indent_proc = p
+    end
+
+    def pre_input_hook=(p)
+      raise ArgumentError unless p.is_a?(Proc)
+      @pre_input_hook = p
+    end
+
+    def dig_perfect_match_proc=(p)
+      raise ArgumentError unless p.is_a?(Proc)
+      @dig_perfect_match_proc = p
+    end
+  end
+
+  extend SingleForwardable
+
+  Core::ATTR_ACCESSOR_NAMES.each { |name|
+    def_delegators :core, "#{name}", "#{name}="
+  }
+
+  private
+
+  def self.core
+    @core ||= Core.new
+  end
+end