Prompt Title: regex

Certainly! Here's a regular expression that validates if a string is either a vehicle VIN code or starts with "temp-":

cssCopy code
^(?=.*[A-HJ-NPR-Z0-9]{17}$)(temp-.+|(?![IOQ])[A-HJ-NPR-Z0-9]{17})$

Explanation:

• ^ asserts the start of the string.
• (?=.*[A-HJ-NPR-Z0-9]{17}$) is a positive lookahead assertion ensuring that the string contains exactly 17 characters from the set [A-HJ-NPR-Z0-9], which are the characters used in VIN codes.
• (temp-.+|(?![IOQ])[A-HJ-NPR-Z0-9]{17}) checks for either:
  • temp- followed by any character (.+ matches one or more characters).
  • Or a string of exactly 17 characters from the set [A-HJ-NPR-Z0-9], excluding the characters I, O, and Q, which are not used in VIN codes.
• $ asserts the end of the string.

This regex should effectively validate if a string is either a vehicle VIN code or starts with "temp-".