Problem

You want to determine the name of the currently running function. This is useful for creating error messages that don't need to be changed if you copy and paste the subroutine code.

Solution

Use the caller function:

$this_function = (caller(0))[3];
Discussion

( Read more... )

Using JSON Data In Perl Scripts
Parsing JSON In Perl By Example
JSON - JSON (JavaScript Object Notation) encoder/decoder
Google::Data::JSON - General XML-JSON converter based on Google Data APIs

use the caller function:

sub foo {
my $this_subs_name = (caller(0))[3];
}

Show Perl subname in vim statusline

http://blogs.perl.org/users/ovid/2011/01/show-perl-subname-in-vim-statusline.html

By Ovid on January 28, 2011 10:28 AM

I asked on the vim mailing list how to see the name of Perl's current sub/method in the status line and Alan Young, the author of PPIx::IndexLines has a great suggestion which unfortunately relied ( Read more... )

http://stackoverflow.com/questions/95820/in-perl-how-do-i-create-a-hash-whose-keys-come-from-a-given-array

=====================================

%hash = map { $_ => 1 } @array;

It's not as short as the "@hash{@array} = ..." solutions, but those ones require the hash and array to already be defined somewhere else, whereas this one can take an anonymous ( Read more... )

While dereferencing arrays, array referred by reference copy to new array when there is a setting operator.

Example:
@arr_orig = (.....);
$arr_orig_ref = \@arr_orig;
@arr_new = @$arr_orig_ref;  # copy arr_orig into new array
foreach (@arr_new) {
#  any changes here don't affect original array
}

http://perldoc.perl.org/index-faq.html

• perlfaq - frequently asked questions about Perl
• perlfaq1 - General Questions About Perl
• perlfaq2 - Obtaining and Learning about Perl
• perlfaq3 - Programming Tools
• perlfaq4 - Data Manipulation

AnyEvent is first of all just a framework to do event-based programming.
http://search.cpan.org/~mlehmann/AnyEvent-6.02/
http://search.cpan.org/~mlehmann/AnyEvent-6.02/lib/AnyEvent/Intro.pod

http://perldoc.perl.org/index-tutorials.html

• perlreftut - Mark's very short tutorial about references
• perldsc - data structure complex data structure struct
• perllol - Manipulating Arrays of Arrays in Perl
• perlrequick - Perl regular expressions quick start
• perlretut - Perl regular expressions ( Read more... )

Блог о  программировании на Java http://www.javenue.info/

Perl, Perl+GUI
http://damienlearnsperl.blogspot.com/

С++
http://alenacpp.blogspot.com/

Блог системного аналитика  Программирование, философия, новости IT-индустрии
http://trurl123.blogspot.com/

Martin Fowler (Agile, Refactoring, DSL,..)
http://martinfowler.com/articles.html

Переводы статей о ( Read more... )