Regular Expression option for 3 or less characters

I have a regular expression below that works for a string example like:

  • MCCOY 3H L24 FINAL 02-28-2012.dwg or
  • SMITH-JOHNSON 5H R32 FINAL 05-26-2012.dwg

But now I'm trying to figure out how to change the regular expression to work for the examples above if they were like:

  • MCCOY 3H L-ABC FINAL 02-28-2012.dwg or
  • SMITH-JOHNSON 5H R-123 FINAL 05-26-2012.dwg

They can also be like

  • MCCOY 3H L-C2 FINAL 02-28-2012.dwg or
  • SMITH-JOHNSON 5H R-2 FINAL 05-26-2012.dwg

So to sum this up, that middle section will always have a Alphabetic character followed by a Dash and then it could have as much as 3 numbers or alphabetic characters or as few as 1 number or alphabetic character.

"^[a-z]+(?:[ -][a-z]+)*\s+\d+[a-z]\s+[a-z]\d+\s+[a-z]+\s+\d{2}-\d{2}-\d{4}\.dwg$"



matches 1 to 3 alphanumeric characters.

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exporting an SSRS report to Excel failure

reporting-services ssrs-2008

When trying to export an SSRS report to excel, I am getting a runtime error. I have looked at the logs and see the following:

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