xlate help and pattern matching

This topic has 6 replies, 3 voices, and was last updated 15 years, 2 months ago by Femina Jaffer.

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January 28, 2011 at 9:59 pm #52234
Femina Jaffer
Participant
Can anyone help me with the following issue:

I need to check if the mrn is 8 characters, and the first 4 digits are all alpha and the last 4 digits are all numeric? Can anyone help me with this, please?

Thanks.

Femina
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- January 29, 2011 at 2:09 am #73518
  Charlie Bursell
  Participant
  set var ABCD1234
  
  if {[regexp — {^w{4}d{4}$} $var]} {
  
  echo var has 4 characters followed bt 4 digits
  
  }
- January 31, 2011 at 7:40 pm #73519
  Femina Jaffer
  Participant
  Thank you Charlie! This really helped. I was breaking this up in two parts. Also, thank you Jim K.
  
  Femina
- January 31, 2011 at 11:34 pm #73520
  Femina Jaffer
  Participant
  Charlie,
  
  I am still not getting this to work. I have an example:
  
  set var 12345678
  
  if {[regexp — {^w{4}d{4}$} $var]} {
  
  echo var has 4 characters followed bt 4 digits
  
  }
  
  This still evaluates to true. It should not pass as it does not meet the condition.
  
  Please advise.
  
  Femina
- February 1, 2011 at 12:07 am #73521
  David Barr
  Participant
  I think that w can match letters or numbers, so you need to do something like this:
  
  set var 12345678
  
  if {[regexp — {^[A-Za-z]{4}d{4}$} $var]} {
  
  echo var has 4 characters followed bt 4 digits
  
  }
- February 1, 2011 at 8:31 am #73522
  Charlie Bursell
  Participant
  My bad, David is correct w will match all alphanumerics. Sorry about that.
  
  Next time I guess I need to test it better 😀
- February 1, 2011 at 4:24 pm #73523
  Femina Jaffer
  Participant
  That worked – thanks guys!
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