Increment

Description: add value to a var (has to contain a number)

Increment "{var} '{number}

var: the var to increment

number:the amount to increment

		
IncrementCmd function:
		
func IncrementCmd(args []string) {
	if len(args) < 2 {
		fmt.Println("not enogh args for increment")
		return
	}
	
	if args[1][0] != '\'' {
		fmt.Println("incorecct type for incrment")
	}
	
	varname := args[0][1:]
	val, ok := state.VarStorage[varname]
	if !ok {
		fmt.Println("varname: " + varname + " was not found.")
		return
	}
	val = val[1:]
	
	//debug line
	//fmt.Printf("val = %q\n", val)
	
	//check if they can be turned into numbers
	current, err := strconv.Atoi(val)
	if err != nil {
		fmt.Println("variable is not a number")
		return
	}

	inc, err := strconv.Atoi(args[1][1:])
	if err != nil {
		fmt.Println("increment is not a number")
		return
	}
	
	current = current + inc // converts the string into a number were 1: (as strings are arrys of chars) uis everytihng past the "   and then adds it to the vars value
	state.VarStorage[varname] = "\"" + strconv.Itoa(current) // return to string
}