[doc] -a -f and -v not support regex

[xiaoyafeng]

-q supports search regex string in perlfaq, hope -a -f and -v could also support it. it will be very useful in windows.

[rwp0]

-q supports search regex string in perlfaq, hope -a -f and -v could also support it. it will be very useful in windows.

Do you mean in perldoc?

[jkeenan]

-q supports search regex string in perlfaq, hope -a -f and -v could also support it. it will be very useful in windows.

Is there a particular reason why you believe this functionality would be useful on Windows, as distinct from other operating systems?

[xiaoyafeng]

-q supports search regex string in perlfaq, hope -a -f and -v could also support it. it will be very useful in windows.

Is there a particular reason why you believe this functionality would be useful on Windows, as distinct from other operating systems?

In Linux， I could run perldoc perlvar, perldoc perlfunc etc., then search key words by / or ?. so I seldom use -f or -v unless I really know which key word I want to find. But In windows, you can't run this way, you have to search by eyes page by page. Instead to make perldoc support / and ? in windows, let -a -f and -v support regex is simple and meet most of requirement.