In Hashcat rule syntax, what is the effect of whitespace within a rule?

• A. Whitespace in a rule is ignored.
• B. Whitespace acts as a separator between commands.
• C. Whitespace is treated as a character to append.
• D. Whitespace invalidates the rule.

Answer: (A)

Whitespace in a Hashcat rule is ignored. A rule is processed as a sequence of transformation commands, each represented by specific symbols. The engine walks this sequence from start to finish, applying each operation in order. Since spaces don’t correspond to any command, they’re skipped, which means you can format rules with spaces or line breaks for readability without changing the result. This also means that adding a space between operations won’t insert any extra characters or alter the transformation. If you ever wondered why you can split a rule across multiple lines or sprinkle spaces, that formatting is cosmetic—the actual transformations occur in the defined command sequence.