How do I insert a validator using validators.regexp in Python 3.6?

Asked Nov 14 '17 at 13:51

Active Nov 14 '17 at 13:51

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I have a form. One of the questions is what is your favourite animal. I want any derivation of "dog" to be accepted:

CORRECT:

dog
doggie
hounddog
hounddoggie
bigdoggie

My class code currently looks like this:

dog_check = StringField('Favourite animal:', validators=[validators.required(), validators.regexp(regex='dog')])

How do I insert a wildcard? I tried adding | and * like |dog| and *dog* but that didn't seem to work. Any idea on how to do this?

asked Nov 14 '17 at 13:51

semiflex

Regular expressions are complex. You may want to read up a bit (you can start [here](https://docs.python.org/3.6/library/re.html), but volumes have been written on the subject) before you try to use them. – glibdud Nov 14 '17 at 14:16
Actually, the python docs are probably not a good place to start... but there are lots of tutorials out there. – glibdud Nov 14 '17 at 14:17
1

I think you're looking to prepend/append `\S*` as [`\S*dog\S*`](https://regex101.com/r/tMNraX/1) – ctwheels Nov 14 '17 at 14:33
It is common knowledge that you may use `.*` to match any 0+ chars, use `.*dog.*` – Wiktor Stribiżew Nov 14 '17 at 14:36
ctwheels solution worked. Thanks! – semiflex Nov 14 '17 at 14:48

0 Answers0