Webmaster Forum / Perl / General Perl Topics / March 2010

% perl -E'say -0'
0
% perl -E'say -undef'
-0

http://nostarch.com/mugperl.htm
cheat sheet is here:
http://nostarch.com/mugperl_big.htm
The cheat sheet appears to be targeted more to the casual user rather

I was running a perl script to generate a makefile and run into the
following errors:
======================================================================
Can't locate Getopt/Std.pm in @INC (@INC contains: C:\Program Files

A noob question about using a require statement. I tried including a
file that looks like this:
    print << "endOfText";
    Sample Text

 I have a file with two fields, country and city and "|" delimiter.
Here are the sample formats:
     USA | Boston
     USA | Chicago

See the script and output below. The problem is that DATA contains a
single quote in the name O'Toole. Is there any way to get this to
work? Or do I have to roll my own?
Or (horrors) do I have to munge DATA to escape every single quote?

I wanted to know if there were any decent sites out there that have
tutorials for creating perl programs on cell phones.

Wanting to run the recent class-attribute discussion[0] through the
neural net of my friend, I described to him in detail how the current
system with attributes works. He's kind of a Java guy, and though he
liked the twigil distinction between private and public, he asked how

Hi, I am creating a login form that redirects the user to a different
page after they are authenticated. It is redirecting them, always
opens up the new page in a seperate browser window/tab and leaves the
login form open.

Some time ago there was a thread disucssing numeric ordering issues; the
fact that ℂ lacks an ordering was part of that discussion.
A recent paper on arxiv proposes inflicting an ordering on ℂ using:
,----< excerpt from http://arxiv.org/abs/1003.4906 >

A test I'm running generates 'implicit' hex values.  So, "123", not
"0x123".  For negative values, it just uses (eg) "-123".  I would like
to sum a set of these on the command line; eg: ' sum.pl  12 34 -10 '
For non-negative values, 'hex()' does what I want.  But, it ignores the

Is there not a way to run arbitrary code and interpolate the result as
a literal string (instead of a Regex)?
I assume that {...} is intended to be where you hook in
semantics/actions mid-parse, but it seems a bit counter-intuitive that

I'm trying to build a very minimal ETL tool using Perl.  I'm trying as
much as possible to abstract the gory details of reading, writing and
generally processing the data by providing a pre-built pipeline into
which users can plug various bits of functionality.

I have a piece of code in C and wanted to write a little simulator for
it in Perl. I basically wanna be listening on port 16001 and on
reception i wanna send back an acknowledgement "POK\0". I thought I
got this accomplished but for some reason my client doesn't seem to

I started a little project where I need to search web pages for their
text and return the links of those pages to me.  I am using
LWP::Simple, HTML::LinkExtor, and Data::Dumper.  Basically all I have
done so far is a list of URL's from my search query of a website, but