agarbiak / tuRingMachine

Ensure that user input is valid for the binary_add_one() function before executing the Turing machine.
Suggest that a lookup is performed against the instruction_set object for the tape alphabet symbols as a standard feature.
Additional validation will be required for specific tuRingMachine functions.

tuRingMachine/R/add_one.R

Lines 4 to 8 in 0b1fa1d

    
           input <- c( 
        
             blank_symbol, # Pre-tape input 
        
             strsplit(as.character(input), split="")[[1]], 
        
             blank_symbol # End of tape input 
        
           )

binary_add_one has been removed from the defined Turing machine functions.

	input <- c(
	blank_symbol, # Pre-tape input
	strsplit(as.character(input), split="")[[1]],
	blank_symbol # End of tape input
	)

Add user input validation