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  1. Return-Path: <icon-group-sender>
  2. Received: from kingfisher.CS.Arizona.EDU by cheltenham.cs.arizona.edu; Tue, 2 Sep 1997 12:02:09 -0500 (EST)
  3. Received: by kingfisher.CS.Arizona.EDU (5.65v4.0/1.1.8.2/08Nov94-0446PM)
  4.     id AA22064; Tue, 2 Sep 1997 10:02:09 -0700
  5. To: icon-group
  6. Date: Tue, 02 Sep 1997 23:48:00 +1000
  7. From: Stuart.Robinson@anu.edu.au (Stuart Robinson)
  8. Message-Id: <Stuart.Robinson-0209972348010001@asianstmg-221.anu.edu.au>
  9. Organization: ANU
  10. Sender: icon-group-request
  11. Subject: More specific GREP-related question
  12. Errors-To: icon-group-errors
  13. Status: RO
  14.  
  15.  
  16. Does anyone know how regular expressions like [a-z] work when a
  17. non-alphanumeric character is used?  For example, which characters would
  18. the following regular expression match?
  19.  
  20. [1-!]
  21.  
  22. What about this one?
  23.  
  24. [a-1]
  25.  
  26. And the reverse?
  27.  
  28. [1-a]
  29.  
  30. I'm sure all of this could be predicted if one had knowledge of the
  31. ordering of ASCII, but I'm afraid I lack such knowledge.  Any tips? 
  32. Thanks in advance.
  33.  
  34. Regards,
  35. Stuart Robinson
  36.  
  37. -- 
  38. Stuart Robinson <Stuart.Robinson@anu.edu.au>
  39. The Australian National University
  40.