Manish Sapariya wrote:
Thanks fxn,
This certainly should help.
List,
Is there a search tool which can give me perldoc pages
given a string.
---
perldoc -q Search the text of questions (not answers) in perlfaq[1-9]
---
does not seems to be powerful enough.
Thanks and Regards,
Manish
On 04/08/2005 08:53 PM, Xavier Noria wrote:
On Apr 7, 2005, at 14:47, Manish Sapariya wrote:
Hi List,
Can anybody tell me difference among all of the following
sub declaration.
1. sub abc {}
2. sub xyz() {} # Please not round brackets, When I had this definition,
I got following error.
The former is a regular subroutine, whereas the latter has a
prototype. That prototype says xyz receives _no_ arguments, so an
error is raised if one is passed:
% perl -wle 'sub xyz () { print "foo" } xyz(3)'
Too many arguments for main::xyz at -e line 1, at end of line
Execution of -e aborted due to compilation errors.
This is documented in perlsub (section "Prototypes"), where the
meaning of the other two prototypes (@) and ($) is explained.
There's an excellent article by Tom Christiansen about prototypes:
Far More Than Everything You've Ever Wanted to Know about
Prototypes in Perl
http://library.n0i.net/programming/perl/articles/fm_prototypes/
-- fxn
There is also the -r switch for recursive (slower) searching. However,
it will stop searching when it finds a "suitable" result (and does not
display a results page like a search engine would).
If that doesn't help, definitely use perldoc.com :-) (if it's up).
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
<http://learn.perl.org/> <http://learn.perl.org/first-response>
