Class: BfRb::Base

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

Overview

loads and interprets brainfuck code

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Base

initialize the interpreter



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# File 'lib/bfrb.rb', line 8

def initialize
	@interpreter = Interpreter.new
end

Instance Method Details

#load_file(file_path) ⇒ Object

load brainfuck code from a file and run it



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# File 'lib/bfrb.rb', line 18

def load_file(file_path)
	code = File.open(file_path) { |f| f.read }
	run(code)
end

#repl ⇒ Object

interactive read-evaluate-print loop



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# File 'lib/bfrb.rb', line 24

def repl
	puts "For interpreter commands, type 'help'"
	while true
		puts ""
		print "bfrb> "
		input = gets.chomp
		case input
		when "help"
			repl_help
		when "exit", 24.chr
			puts "Exiting"
			break
		when "mem"
			puts "Cell: #{@interpreter.memory_counter} Value: #{@interpreter.current_memory}"
		when "clear"
			@interpreter.initialize_environment
		else
			@interpreter.run(input)
		end
	end
end

#repl_help ⇒ Object

prints out a help message



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# File 'lib/bfrb.rb', line 47

def repl_help
	puts "'exit' or Ctrl-X leaves the REPL"
	puts "'mem' displays the value in the current cell of memory"
	puts "'clear' clears everything from memory"
	puts "'help' displays this message"
end

#run(code) ⇒ Object

run the given brainfuck code



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# File 'lib/bfrb.rb', line 13

def run(code)
	@interpreter.run(code)
end