The regex below is working for after the period. The part in fron is not
working. It is requiring atleast 2 chars before the period which is not my
rule. the rule for the front part:
start with [a-zA-Z0-9]
chars following is [\w-] BUT IS OPTIONAL
/^[a-zA-Z0-9][\w-]\.[a-zA-z]+$/
I think the regex is not doing the option \w part.
Example, a.c is failing. it's suppose to be true.
thanks
> --On Friday, October 10, 2003 16:43 -0700 "[EMAIL PROTECTED]"
> <[EMAIL PROTECTED]> wrote:
>
>> rules:
>> starts with alphanumeric
>> 3 chars long
>
> Note, so we are not confused: you mean _at least_ 3 chars long. (Not
> _only_ 3 chars long.)
>
>> require ONLY one period
>> require alpha after the period
>
> Ok, what exactly do you mean here? Is this:
> a. Require _only_ alpha after the period?
> b. Require _the next char_ to be alpha?
>
> Either one is possible from your description, and could be a big
> difference.
>
>> /^[a-zA-Z0-9][\w-].[a-zA-z]/ #but now working
>>
>> sub validate {
>> local $_ = shift;
>> return( length >= 3 and
>> tr/.// == 1 and
>> /^[[:alpha:]]/ and
>> /[a-zA-Z0-9].[a-zA-Z]/ ); #added here still not working
>> }
>
> That last line says: Match one character (alpha or numeric only) then
> any character, then a single alpha character.
>
> If you want the _next_ character to be alpha, the following should
> work:
> /\.[[:alpha:]]/
>
> If you want _only_ (and at least one) alpha after the period, you
> need this:
> /\.[[:alpha:]]+$/
>
> Hope this helps.
>
> Daniel T. Staal
>
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