> In your example, you have a function that checks the strings are all zero, and you wouldn't call the parser if it returned true. But you can simply declare this code to be part of the parser and just not call the rest of the parser.
Again -- like with the previous argument about "error" vs. "success", this is a red herring built around the fact that my example was so trivial and easy to describe this way. What if the logic was supposed to be "if the digits are all zero then don't store the numbers in the database, otherwise subtract them from my account balance"? You avoid a database hit if they're all zero, so are you going to say debiting your account is now "parsing" too?
Again -- like with the previous argument about "error" vs. "success", this is a red herring built around the fact that my example was so trivial and easy to describe this way. What if the logic was supposed to be "if the digits are all zero then don't store the numbers in the database, otherwise subtract them from my account balance"? You avoid a database hit if they're all zero, so are you going to say debiting your account is now "parsing" too?