CODEWITHSUNDEEP
regex
n_kips
n_kips

Reputation: 585

How to write regex to enforce maximum of 255 characters, with no spaces?

What regex would allows text or numbers, or text and number (with no spaces) and a maximum length of 255 characters?

Upvotes: 0

Views: 1450

Answers (2)

Tim Pietzcker
Tim Pietzcker

Reputation: 336418

If your regex flavor knows Unicode, you can use

^[\p{L}\p{N}]{0,255}$

You can also use

^\w{0,255}$

although that will miss non-ASCII letters in some regex flavors, and it will also allow the underscore _. If you don't want that, try 

^[^\W_]{0,255}$

Upvotes: 2

qbert220
qbert220

Reputation: 11556

You want something like:

^[a-zA-Z0-9]{,255}$

^ matches the beginning of the string [a-zA-Z0-9] matches an alpha numeric character {,255} means up to 255 of the previous part (alpha numeric character) $ matches the end of the string

Upvotes: 5

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