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Thread: Cannot use reg ex step on field conatining the concatenation of two fields !?

  1. #1

    Question Cannot use reg ex step on field conatining the concatenation of two fields !?

    Hi!

    What I originally intend to do is this:

    Unzip an archive, which always contains two files named 'x.a' and 'y.b'. The file extensions 'a' and 'b' are always the same but 'x' and 'y' are different from archive to archive.
    Initally, 'x.a' and 'y.b' will be provided by the field 'file' of two rows of the same stream.
    This I want to transform into a single row with two fields named 'a' and 'b' - keeping the respective filename.

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    Now I came up with a transformation that theoretically (at least) should achieve this - the idea is such:

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    A part of the transformation doing this looks as follows:

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    Now the problem simply is this - I get no result from the reg ex step (simple expression: ^(.*)$) if I apply it to 'pq' ...

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    ... but I get one when I apply it to any other field:

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    1) I gave the details about my intention because I am very interested in simpler solutions - if you have one!

    2) Is there a way to make this transformation workable?

    Thanks in advance

    Raffael
    Last edited by joyofdata; 06-22-2013 at 06:16 PM.

  2. #2

    Default

    The transformation of the above example:
    Attached Files Attached Files

  3. #3

    Default

    It works when I enable "dotall mode" for the reg exp step. Can somebody explain to me why?

    Regards

    Raffael

  4. #4
    Join Date
    Jun 2012
    Posts
    5,534

    Default

    "My Mom's cooking was so bad, Indians would come up from South America just to dip their arrows in her gravy." -- Roger Miller
    Attached Files Attached Files
    Last edited by marabu; 06-23-2013 at 03:06 AM.
    So long, and thanks for all the fish.

  5. #5

    Default

    nice stuff, marabu!

    Learned two new tricks.

    Poor Roger, though ... :/

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