Class: Cyc::Console

Inherits:
Object
  • Object
show all
Defined in:
lib/cyc/console.rb

Constant Summary collapse

API_QUIT = 
"(api-quit)"
CompletionProc = 
proc {|input|
  case input
  when /\A#/
    @@constants.grep(/^#{Regexp.quote(input)}/)
  when /\A[a-zA-Z-]*\Z/
    @@functions.grep(/#{Regexp.quote(input)}/)
  end
}
@@constants = 
[]
@@functions = 
CycFunctions.new.to_a

Instance Method Summary collapse

Constructor Details

#initialize(host, port) ⇒ Console

Initializes connection with Cyc runing on host :host: on port :port:



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# File 'lib/cyc/console.rb', line 101

def initialize(host, port)
  History.new({})
  @host = host
  @port = port
  @cyc = Cyc::Client.new(:host => @host,:port => @port)
  @line = ""
  @count = 0
end

Instance Method Details

#add_autocompletion(str) ⇒ Object 



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# File 'lib/cyc/console.rb', line 110

def add_autocompletion(str)
  @@constants |= str.split(/[() ]/).select{|e| e =~ /\#\$/}
end

#main_loop ⇒ Object

The main loop of the console



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# File 'lib/cyc/console.rb', line 115

def main_loop
  loop do
    begin
      line = Readline::readline(("cyc@" + "#{@host}:#{@port}" +
          (@count > 0 ? ":#{"("*@count}" : "") + "> "))
      case line
      when nil
        puts
        break
      when API_QUIT,"exit"
        @cyc.raw_talk(API_QUIT) rescue nil
        break
      else
        @line += "\n" unless @line.empty?
        @line += line
        letters = @line.split("")
        Readline::HISTORY.push(@line) if line
        message = @cyc.raw_talk(@line)
        @line = ""
        @count = 0
        puts message.gsub(/(\#\$[\w-]+)/,"\\1".hl(:blue))
        add_autocompletion(message)
      end
    rescue ::Cyc::UnbalancedClosingParenthesis => exception
      puts exception.to_s.sub(/<error>([^<]*)<\/error>/,"\\1".hl(:red))
      @line = ""
    rescue ::Cyc::UnbalancedOpeningParenthesis => exception
      @count = exception.count
    rescue Exception => exception
      puts "Error: " + exception.to_s
      @count = 0
      @line = ""
    end
  end
end