Hi there,
I'm trying to extract a substring for text that is variable - both the string and the substring change, but while the structure of the string changes, the pattern of the substring remains the same - it just appears in different places depending on the string.
Example: Two strings
sdflkjsdlkjsdflksdjfldsfkj@123BOB23sdflkjsjdlfkjsdfkj
sdflkjsddjfldsfkj@4567SUE45sdflkjsjdlfkjsdfkjasdasdasd
I want to extract -123BOB23 and -4567SUE45 from each string using the same method.
I can use IsMatch to determine if the pattern exists with regular expressions, but IsMatch just checks for the pattern, it doesn't extract it for me.
I can't rely on Left/Mid/Right as the last digit of what I'm extracting changes, making it impossible to determine where it ends using those methods.
Ideally I need something like IsMatch to provide a way to both match the pattern and extract the substring for me....
Any ideas?
Kind regards,
R
Solved! Go to Solution.
Hi Russel_Thomas,
I am afraid currently there might not be such a function can be used to extract substring.
May you consider to submit a request at PowerApps ideas Forum for this function:
https://powerusers.microsoft.com/t5/PowerApps-Ideas/idb-p/PowerAppsIdeas
I will report it on my side and keep an eye on this function, I will back to you if I got any updates.
Best regards,
Mabel Mao
Hi Russel_Thomas,
I am afraid currently there might not be such a function can be used to extract substring.
May you consider to submit a request at PowerApps ideas Forum for this function:
https://powerusers.microsoft.com/t5/PowerApps-Ideas/idb-p/PowerAppsIdeas
I will report it on my side and keep an eye on this function, I will back to you if I got any updates.
Best regards,
Mabel Mao
Have you guys comes up with any solution to this problem yet?
I realise this is a really old post but in case someone is searching for this, the answer is to use named groups like so.
In this example, this is the formula we would use.
Match( "sdflkjsdlkjsdflksdjfldsfkj@123BOB23xx", "(\d+)(?!.*\@)(?<EmailSuffix>.*)" ).EmailSuffix
I have a similar problem @timl . I am trying to automate customer emails and rejecting them if the unique customer number is not in the subject line. The customer number format is "HR123456-7" Starting with "HR*", has a number <99999 and >1,000000 so only six digits, and ends with a dash and a version number straight after the dash (very few go past 9 versions).
At the moment I am using a simple conditions in the flow "starting with HR" and "contains -". But I want the condition to be fool proof.
Maybe I need to use a different formula type to match a substring in a string?
(I can cope with OR conditions so I can duplicate and include the solution with 2 integers for the version number.)
You can use the known pattern "@" as an anchor to establish a new starting point with split, and then substring your 8 char value.
substring(last(split(variables('string'), '@')), 0, 8 )
This is an amazingly simple but effective way to make a single, simple fake regex match, and you can add a 'concat' layer to append the detection string back to the query return. Thank you for this solution!
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