class BefungeInterpreter

This is the top-level class containing everything needed to interpret befunge code. Intialize with a string location of a filename and an array of flags and then call BefungeInterpreter#interpret. This will run the befunge code. TODO: Implement flags - debugging mode, animation mode.

Public Class Methods

new(file, flags) click to toggle source

# File lib/befunge_interpreter.rb, line 9
def initialize(file, flags)
  @code_map = CodeMap.new(file)
  @flags = flags
  @stack = Stack.new
  @string_mode = false
  @computing = true
  @return_string = ''
end

Public Instance Methods

interpret() click to toggle source

# File lib/befunge_interpreter.rb, line 18
def interpret
  operate_and_step while @computing
end

Private Instance Methods

operate_and_step() click to toggle source

# File lib/befunge_interpreter.rb, line 24
def operate_and_step
  operate!(@code_map.get_operation)
  @code_map.pointer.step
end

print_return_string() click to toggle source

# File lib/befunge_interpreter.rb, line 51
def print_return_string
  p @return_string
end

print_stack() click to toggle source

# File lib/befunge_interpreter.rb, line 36
def print_stack
  print_whole_stack if @stack.length <= 10
  print_top_ten_stack if @stack.length > 10
end

print_status() click to toggle source

# File lib/befunge_interpreter.rb, line 29
def print_status
  system 'clear'
  @code_map.print_map
  print_stack
  print_return_string
end

print_top_ten_stack() click to toggle source

# File lib/befunge_interpreter.rb, line 45
def print_top_ten_stack
  puts "Showing top ten items on stack..."
  @stack[-11..-1].each { |stack_item| print ", #{stack_item}" }
  print "]\n"
end

print_whole_stack() click to toggle source

# File lib/befunge_interpreter.rb, line 41
def print_whole_stack
  p @stack
end