CODEWITHSUNDEEP
regexregex-lookaroundsregex-negationregex-group
Gil
Gil

Reputation: 9

RegEx for ignoring certain words

What is a regex for ignoring words in a given sentence?

Input: Online Mobile Order is not working

Output: Online Mobile Order

I'm trying to get some automation tool to flag cases where the combination Online Mobile Order appears.

In my current case I use it as follows: (Online Mobile Order|Mobile Online Order|Online Order Mobile)

This allows to flag these combinations regardless of their ordering.

But, sometimes I need to capture "Online Mobile Order is not working" but the addition of "is not working" will not flag this sentence for me.

I was looking for similar answers here but since I'm not across Regex, I wasn't sure if any answer was matching my problem.

Upvotes: 0

Views: 75

Answers (2)

user557597
user557597

Reputation:

This works if your engine supports conditionals.
By and large its PCRE, Perl, Boost.

(?i:(?m:[ ]|^)(?:(?(1)(?!))(Order)|(?(2)(?!))(Mobile)|(?(3)(?!))(Online))){3}

https://regex101.com/r/w7zfyV/1

Expanded 

 (?i:
      (?m: [ ] | ^ )
      (?:
           (?(1)(?!))
           ( Order )                     # (1)
        |  (?(2)(?!))
           ( Mobile )                    # (2)
        |  (?(3)(?!))
           ( Online )                    # (3)
      )
 ){3}

Upvotes: 1

Colin R. Turner
Colin R. Turner

Reputation: 1415

This should work:

/^.?(Online Mobile Order|Mobile Online Order|Online Order Mobile).?$/gi

The .? matches zero or more of any character before and after those word combinations. You should also use the i flag so it matches any character case.

Use this online regex tester to test.

Upvotes: 0

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