Question: Regular Expression Filter – How to forbid a specific input text

[MikeySmith]

Hi guys, I have a question for the regular expression experts:

Within a textarea input: How do I prevent a user from submitting a specific text?? I guess the only way to do this is the regular expression filter.

This here does not work

^(?!Hi guys, this is the prefilled text. The user has not changed it.$)


Any ideas? I would be really thankful for a tip

Kind regards
Mikey

[Ally]

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[MikeySmith]

Hi Ally,

thanks for the hint.

What do I have to do to make it work with in the text?

So that it would filter a text like this:

Hi guys,
this is the prefilled text.

The user has not changed it


[Ally]

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[MikeySmith]

Hi Ally,

for some reason I can’t get this to work.

My settings:
1) Multi-line textbox with the exact text from above
3) Validation “Regex” Filter with your latest regex

The problem:
The filter does not trigger at all… there is no error message shown. Not if I leave the default text and not if I enter a different text..

Any ideas? Can you reproduce this?

[Ally]

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[MikeySmith]

Hi Ally,

yes, you are right: the problem where the blanks!

The problem is that I’d actually like to have a blank at the end of a line.

How do I make the regex aware of a blank (at the end of a line)?
Is there a special regex-character for it?

Kind regards
Mikey

[MikeySmith]

Hi Ally, Hi guy,s

I just answered the previous question to myself:

\s is the regex-code for a whitespace (=blank). 🙂

[Author]

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