Shorter way of writing dates in .htaccess file

[otem]

I'm creating a .htaccess rewrite rule of the url contains a valid date.

While it works just fine, my code seems longer than it needs to be.

I'm sure it doesn't make it any less efficient, but the long lines of code does make it a pain when trying to edit them.

Can these be made shorter?

My notes are on the left side of the colon, my modrewrite is on the right.

Year (2000+): (2[0-9]{3})

Month (01-12): (0[1-9]{1}¦1[0-2]{1})

Day (01-31): (0[1-9]{1}¦[12]{1}[0-9]{1}¦3[0-1]{1})

Thanks

[jdMorgan]

The default 'count' for any character-specific subpattern is one. It is therefore unnecessary to use the quantifier "{1}" on anything.

In groups, you can specify either ranges or alternates, so a group of [0-1] is equivalent to a group of [01]. A group of [0-2] is equivalent to a group of [012]. It is actually faster to use the latter non-range notation until the range size exceeds 3.

So you can rewrite, for example, your last pattern as:

(0[1-9]¦[12][0-9]¦3[01])

Jim

[otem]

Thank you,

That was very useful and most helpful.

It helped me cut down on my length to a more managable size.