Hello;

I am trying to figure out a way of validating a text area that must contain at least a couple of words with a mix of and/or statements.

Essentially I am looking for a validation that looks for certian words in a sentence. Example, text area must contain word1 or word2 but also must contain word3 and word4.

Can this be done with Regex? Any pointers on how to start?

Thanks;

-Ryan

Comments

rbrownell’s picture

This can be achieved with the regular expressions...

Examples

"This"

^(?=.*?\bRehearsal\b).*$
Validates for the word Rehersal.

"This or This or This"

^(?=.*?\b(Rehearsal|Matinee|Performance)\b).*$
Validates for at least one of the words Rehersal, or Matinee, or Performance.

"This and This and This"

^(?=.*?\bRehearsal\b)(?=.*?\bMatinee\b)(?=.*?\bPerformance\b).*$
Validates only if all the words Rehearsal, Matinee, and Performance are present.

"This or This, This or This, and This"

^(?=.*?\b(Load In|Setup)\b)(?=.*?\b(Load Out|Teardown)\b)(?=.*?\bPerformance\b).*$
Validates only if either Load In or Setup is present, and Load Out or Teardown is present and only if Performance is present.

"Not This"

^((?!Matinee).)*$
Validates only if Matinee is not present.

"Not This or This or This"

^((?!Rehearsal|Matinee|Performance).)*$
Validates only if neither Rehearsal, nor Matinee, nor Performance are present.

"This, This or This, and This or This, but Not This or This

^(?=.*?\bPerformance\b)(?=.*?\b(Load In|Setup)\b)(?=.*?\b(Load Out|Teardown)\b)((?!Matinee|Rehearsal).)*$
Validates only if Performance, and Load In or Setup, and Load Out or Teardown is present but won't validate if Matinee or Rehearsal is present.

svendecabooter’s picture

Status:Active» Fixed

Thanks for the great examples nfd!
I've added a link to them on the project page, for future reference to people struggling with regexes.

Status:Fixed» Closed (fixed)

Automatically closed -- issue fixed for 2 weeks with no activity.

sahithi’s picture

Version:6.x-1.4» 7.x-1.1

Can anyone please tell me
how to validate a text field which can have numbers,alphabets,spaces and some special characters like , . ()_ -
using regular expression validator?

Thanks in advance

Liam Morland’s picture