Class: Theta::Base

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

Overview

runs the interpreter

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Base

Returns a new instance of Base.



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# File 'lib/theta.rb', line 7

def initialize
	@interpreter = Interpreter.new
end

Instance Method Details

#load_file(file_path) ⇒ Object

load and run the given file



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# File 'lib/theta.rb', line 12

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

#repl ⇒ Object

start an interactive interpreter



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# File 'lib/theta.rb', line 26

def repl
	puts "For interpreter commands, type 'help'"
	while true
		print "theta> "
		input = gets.chomp
		case input
		#when "clear"
		#	puts "Resetting environment..."
		#	@interpreter = Interpreter.new
		when "exit", 24.chr
			puts "Exiting..."
			return
		when "help"
			repl_help
		else
			begin
				output = @interpreter.run(input)
			rescue SyntaxError
			end
			if not output.nil? and not output.empty? 
				output.each { |value| puts @interpreter.make_readable(value) }
			end
		end
	end
end

#repl_help ⇒ Object 



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# File 'lib/theta.rb', line 52

def repl_help
	#puts "'clear' resets the environment"
	puts "'exit' or Ctrl-X will exit the interpreter"
	puts "'help' will display this message"
end

#run(program) ⇒ Object

run given code



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

def run(program)
	output =  @interpreter.run(program)
	if not output.nil? and not output.empty? 
		output.each { |value| puts @interpreter.make_readable(value) }
	end
end