See perlre about \d, or about the [...] character class notation.

Also, you might want to use <code>...</code> tags around your code and data so it renders and downloads nicely.

In reply to Re^3: Generalising string in pattern by Corion
in thread Generalising string in pattern by rajyalakshmi

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
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