#!/usr/local/bin/ruby

class HexPipe
    HEXDATA = "~/hex-data"
    HEXCMD = "hex"
    PS = "> "

    def initialize
	Dir::chdir(File::expand_path(HEXDATA))
	@p = IO::popen(HEXCMD, 'w+')
	gets
    end

    def gets
	s = ""
	loop do
	    ps = @p.read(PS.length)
	    return s if ps == PS
	    s+= ps
	    s+= @p.gets.chomp + " "
	end
    end

    def puts(s)
	@p.puts(s)
	@p.read(PS.length)
	@p.puts
    end

    def destroy
	@p.close
    end
end