"John W. Krahn" <[EMAIL PROTECTED]> writes:
>> >> $rein_str = shift;
>> >>
>> >> while(<>){
>> >> chomp;
>> >> $pre_out = $_;
>> >> ($out = $pre_out) =~ s/$strp_re/$rein_str/;
>> >
>> > ($out = $pre_out) =~ s/$strp_re/qq["$rein_str"]/ee;
>>
>> I find no reference to `qq' used like this in `Programming Perl
>> [3rd]'. Ditto for a double `ee' in this context. I can sort of see
>> what is happing ... That is, $rein_str is being presented to the
>> interpreter in such a way that it knows how to read it. But not
>> clear what all is happening here.
>
> The /e option eval()s the replacement string however, because you have
> back-reference variables ($1, $2, etc.) in the replacement string you
> have to wrap it in double quotes for each eval.
Probably being very dense here but something still confusing me.
qq means double quotes but then "" are already around $rein_str, so
do we have double double quotes? And does 'ee' mean double eval?
I think I'm still missing something basic here.
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
