CODEWITHSUNDEEP
google-cloud-firestorefirebase-securityre2
HJo
HJo

Reputation: 2205

Compulation errors in firestore.rules regex

I'm trying to match any string that is a hashtag of any letters.

I've tested ^#{1}\p{L}+$ on multiple re2 testing sites and they all work fine, but in firestore.rules I get a compilation error:

Error: Compilation errors in firestore.rules:
[E] 33:33 - Unexpected 'p'.
[E] 33:37 - Unexpected '+'.
[E] 36:1 - Unexpected '}'.

Removing \p{L} gets rid of the error but as far as I can see, that should be valid.

My testing string (the first 3 should match, the rest should not)

#somethingcool
#かんぱい
#señor

#dbudn-asdasd
##burn
kurm
#durm burn

Edit: Here's the rules in place

match /tags/{tagId} {
  allow create: if userIs(userId) && isValidTag(tagId)
  allow read: if userIs(userId)
}


function isValidTag(tag) {
  return tag.matches('^#{1}\p{L}+$') == true
}

Upvotes: 0

Views: 191

Answers (1)

Doug Stevenson
Doug Stevenson

Reputation: 317427

Try escaping the backslash with another backslash:

return tag.matches('^#{1}\\p{L}+$') == true

Upvotes: 2

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