Regex in handlebar to get everything after the first whitespace doesn't work during flow execution

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Ugene Jude
Engaged
Celigo University Level 4: Legendary

For a name like "John B Doe", I need first name to be "John" and last name to be "B Doe".

While testing the handlebars statement in Dev playground the below statements work correctly.

{{regexMatch BuyerName "([^\s]+)"}} --> firstname
{{regexMatch BuyerName "(?<=\s).*"}}-->lastname

 

But when implemented in mapping and when flow is run, it throws invalid_handle_bar_expression

 

"Could not compile handle bar \"{{regexMatch BuyerName \"(?<=\\s).*\"}}\" because \"Invalid quantifier ?\" .Please correct and retry"

 

Why is it not able to compile when it worked in playground. Please help

 

3

Comments

5 comments
Date Votes
  • Avatar
    Kate Larson
    Senior UX Researcher Community moderator

    Hi Ugene Jude -

    I created a Support ticket for this issue. You should receive an email with the information.

    Thanks!

    Kate

    0
  • Avatar
    Ugene Jude
    Channel Partner
    Engaged
    Celigo University Level 4: Legendary

    Thank you Kate

    0
  • Avatar
    Merik Ducker
    Awesome Follow-up
    Celigo University Level 4: Legendary
    Engaged

    Hi Ugene -

    I hope you're doing well.

    Did you happen to come across a solution to this one?

    - Merik

    0
  • Avatar
    Merik Ducker
    (Edited )
    Awesome Follow-up
    Celigo University Level 4: Legendary
    Engaged

    Here's where I landed:

    {{#compare (regexSearch VendorName " ") ">" -1}}{{trim (substring VendorName (regexSearch VendorName " "))}}{{else}}.{{/compare}}

    Explanation:

    (regexSearch VendorName " ")
    • returns zero-indexed position of first space
    • returns -1 when string does not contain space
    (substring VendorName (regexSearch VendorName " "))
    • returns substring starting with (inclusive) first space
    • it should be noted that I've already trimmed my VendorName on earlier export
    • there would be issues if VendorName had leading spaces
    • namely, this output intended to be Last Name would be equivalent to First Name
    {{trim (substring VendorName (regexSearch VendorName " "))}}
    • removes whitespace present at start or end of substring 
    {{else}}.{{/compare}}
    •  returns period in scenario where string does not contain a space
    1
  • Avatar
    Jake Naydock
    Great Answer

    Merik Ducker Thank you for this workaround and explanation!! I ran into the same issue, and was able to get around it with your method. You just saved me a ton of time.

    For anyone else wondering, the reason that this error occurs is because Javascript does not support lookahead / lookbehind, and "?" is involved in the process. You will need to find a different way to structure your formula that avoids lookaheads/lookbehinds.

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