No capture group found in RegEx

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James Trory

• June 26, 2018 19:13

Hi,

I'm trying to use the following to parse file names from the field "file" that match a specific regex pattern.

| parse regex field=file "([a-z]*[0-9]*)_([0-9]*)(.tif|.png)" as transfer_file

This isn't working because I get the error, "No capture group found in regex". This should be a valid regex pattern, and I've used it before outside SumoLogic with success, so I don't know what the issue is. What doesn't SumoLogic like about this?

Thanks for any suggestions.

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  Graham Watts

  • June 26, 2018 19:36

  Hey James,
  
  Instead of the as field_name method, which won't work with regex, try naming the capture groups like this:
  
  
  "(?<name1>[a-z]*[0-9]*)_(?<name2>[0-9]*)(.tif|.png)"

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  James Trory

  • June 26, 2018 20:38

  Hi Graham,

  Oh I see how it works now, thanks. I'm using this and it works great:

  | parse regex field=file "/(?<filename>[a-z]*[0-9]*_[0-9]*.*)"

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  Graham Watts

  • June 26, 2018 20:48

  Glad you got it working James!
  
  
  

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