More readable errors for patterns

[o0Djeen0o]

Hi,

I'm struggling with patterns usage and proper error display.

I would like to validate a range of number values, something like 1024-2048, and I have a pattern to express allowed number values (values between 1024 and 49151) :
pattern: "^(102[4-9]|10[3-9][0-9]|1[1-9][0-9]{2}|[2-9][0-9]{3}|[1-3][0-9]{4}|4[0-8][0-9]{3}|490[0-9]{2}|491[0-4][0-9]|4915[01])-(102[4-9]|10[3-9][0-9]|1[1-9][0-9]{2}|[2-9][0-9]{3}|[1-3][0-9]{4}|4[0-8][0-9]{3}|490[0-9]{2}|491[0-4][0-9]|4915[01])$"

But the output for user is displayed as:

07:43:09.693Z - error: PATTERN should match pattern "^(102[4-9]|10[3-9][0-9]|1[1-9][0-9]{2}|[2-9][0-9]{3}|[1-3][0-9]{4}|4[0-8][0-9]{3}|490[0-9]{2}|491[0-4][0-9]|4915[01])-(102[4-9]|10[3-9][0-9]|1[1-9][0-9]{2}|[2-9][0-9]{3}|[1-3][0-9]{4}|4[0-8][0-9]{3}|490[0-9]{2}|491[0-4][0-9]|4915[01])$"
> 4 |   "ports": "3000-302"

which is valid, but not readable to understand what is a valid input.

I would like to know if there is a way to force a message when an error occurs, for instance to use a description instead of the pattern value, or if any other mechanism exists to provide a more readable output without the need to put logic from error report ?

Thanks for your help !

[megamorf]

Why use a regex when you can define a number with lower and upper boundaries?