Re: position of first matching regex

If you know that your number will be in position 0 or position 1, and that is all you care about, use the '^' to determine if the first character is a number or not. If it is, you will get a match, if it is not, then you know the first character is an non-number...

if ($filename =~ /^[0-9]/) { .... } (untested)

Hope that is helpful....

...the majority is always wrong, and always the last to know about it...
Insanity: Doing the same thing over and over again and expecting different results...

wjw

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Re^2: position of first matching regex by techtaskers.com (Novice) on May 17, 2014 at 13:50 UTC
Yes that would work, given the assumptions. What I hope to accomplish is to code a procedure that is less assumptive and more informing. I can run further contingencies based on the location metric. I also need to key onto another part of the file name, a letter indexed serialization of the file. These are tutorial slides, and it is important to account for that too. Thank you for your reply. David	[reply]

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Re^2: position of first matching regex
by techtaskers.com (Novice) on May 17, 2014 at 13:50 UTC

Yes that would work, given the assumptions. What I hope to accomplish is to code a procedure that is less assumptive and more informing. I can run further contingencies based on the location metric.

I also need to key onto another part of the file name, a letter indexed serialization of the file. These are tutorial slides, and it is important to account for that too.

Thank you for your reply.

[reply]