I'm rather new to Perl development and I've come across a situation where I think the use of some sort of regex might work, but I'm not very good with them yet, so I need a little help.

Here's the situation. I'm reading a list of appointments from an XML file and I'd like to remove any old dates from the file. Here's a sample of the XML to show you the schema:
<SCHEDULE>
   <DAY DATE="4/21/2001">
      <APPT>
         <START>10:00</START>
         <STOP>11:00</STOP>
      </APPT>
      <APPT>
         <START>12:00</START>
         <STOP>13:30</STOP>
      </APPT>
   </DAY>
   <DAY>
      ...
   </DAY>
   ...
</CALENDAR>

[download]
What I'd like to accompish is to read this file in (possibly into a single scalar, for simplicity) and remove all <DAY> nodes with a "DATE" attribute prior to a specific date, such as the current date.

I was thinking of using some permutation of the s/// operator to accomplish someting like:
$xmlDoc =~ s/<DATE DAY="(Everything less than today)"...</DATE>//g;

[download]
This is where I'm having trouble. Can I use some sort of regex to pull this off or is there possibly another, simpler way of accomplishing this.

Thanks,
- Sherlock

P.S.
I'd like to send a little "Thank you" out to OeufMayo for the XML::Parser Tutorial that really got me going on this project. ;-)

In reply to Will regex work here? by Sherlock

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