Yet another look at it...
#!/usr/bin/perl
use warnings;
use strict;
use LWP::Simple;
use HTML::Parser;
# 'print' URL to save a smidge of bandwidth
my $url = "http://perlmonks.org/?displaytype=print;node_id=31832";
if (my $page = get($url)) {
my $parser = HTML::Parser->new( api_version => 3 );
$parser->handler( start => sub {
return if shift ne 'title';
my $self = shift;
$self->handler( text => sub {
my $title = shift;
# Only ready for 4-function math with integers
if ($title =~ m#((\d+) (\+) (\d+))#) {
print "$1 = ", eval("$2 $3 $4"), "\n";
}
}, 'dtext'
);
$self->handler( end => sub {
shift->eof if shift eq 'title' ;
}, 'tagname,self'
);
},
'tagname,self'
);
$parser->parse($page);
}
else {
print "Unable to fetch '$url' for some reason.\n";
}
I chose to leave the database layer out of it this time.
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Are you posting in the right place? Check out Where do I post X? to know for sure.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
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