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Invalid quantifier ? when using Lookbehind regex

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  • Invalid quantifier ? when using Lookbehind regex

    Hi,

    I'm trying to use in a transformer a regular expression to match some data but I'm getting this error.

    Here is an example of what I am doing.

    The data:

    Code:
    <value name="VALUE" type="Numeric" unit="Ohm">
         3000
         <escape type="GREATER_THAN_MAX" />
    </value>
    What I want to match is what is inside the escape.type attribute.

    So i execute this javascript in my transformer:

    Code:
    var matches = node.toString().match(/(?<=<escape type=")(.+)(?=" \/>)/);
    When deploying my channel I get the error:

    SyntaxError: Invalid quantifier ?

    How can I use my regular expression without getting the error?

    Thanks

  • #2
    JavaScript does not support lookbehinds. There are clever ways around it, but you can just use Java regular expressions instead: http://docs.oracle.com/javase/7/docs...x/Pattern.html
    Step 1: JAVA CACHE...DID YOU CLEAR ...wait, ding dong the witch is dead?

    Nicholas Rupley
    Work: 949-237-6069
    Always include what Mirth Connect version you're working with. Also include (if applicable) the code you're using and full stacktraces for errors (use CODE tags). Posting your entire channel is helpful as well; make sure to scrub any PHI/passwords first.


    - How do I foo?
    - You just bar.

    Comment


    • #3
      Ok, I'll try a workaround then. Thanks

      Comment

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