Hello Perl monks, first time asking a question. My apologies in advance if my post is not meeting house rules.

So, I am trying to extract information from a large html file.

---
<tr>
<td class="confluenceTd">AL2H </td>
<td class="confluenceTd">NANOMETRICSTITANSMA000357 </td>
<td class="confluenceTd">2017-03-09T00:00:00.000Z </td>
<td class="confluenceTd">2017-05-25T12:00:00.000Z </td>
<td class="confluenceTd"><p><span class="image-wrap" style=""><img src
+="/download/attachments/49449087/true.png?versio$
<td class="confluenceTd">48.38981 </td>
<td class="confluenceTd">-123.48739 </td>
<td class="confluenceTd">-29.0 </td>
<td class="confluenceTd">&nbsp;</td>
</tr>

---

<tr>
<td class="confluenceTd">BACAX </td>
<td class="confluenceTd">RDIADCP600WH9339 </td>
<td class="confluenceTd">2011-07-15T18:42:25.000Z </td>
<td class="confluenceTd">2012-05-30T01:12:03.000Z </td>
<td class="confluenceTd"><p><span class="image-wrap" style=""><img src
+="/download/attachments/49449087/true.png?versio$
<td class="confluenceTd">48.316762 </td>
<td class="confluenceTd">-126.050163 </td>
<td class="confluenceTd">985.0 </td>
<td class="confluenceTd">221.0 </td>
</tr>
---
[download]

What my code does at the moment: Copy the first 4 lines of the first html block above, and print them with their meanings.

locationCode: AL2H
deviceCode: NANOMETRICSTITANSMA000357
dateFrom: 2017-03-09T00:00:00.000Z
dateTo: 2017-05-25T12:00:00.000Z
[download]

What I would like to achieve:

1. Do the same thing as above by looping through similar blocks.

2. Extract only blocks that have a sub-string "RDI" in their second line (eg., RDIADCP600WH9339 in the second block shown above).

I can try 2 if I can get help with 1.

Thank you.

My semi-working code is below. As you can see, I am storing the html page in a variable, $scrappy.

 
#!/usr/bin/perl
use strict;
use warnings;
use utf8;
use Term::ANSIColor qw(:constants);

my $scrappy =
`curl -s 'https://wiki.oceannetworks.ca/display/O2A/Available+Deployme
+nts' 2>&1`;

my $lineX;

my $count = 0;

foreach $lineX ( split /\n/, $scrappy ) {

    if ( $lineX =~ /^\s*$/ ) {    # Skip white spaces or comment line
        next;
    }
    my @F = split( " ", $lineX );
    my $mylen = length $lineX;

    if ( $mylen ge 2 ) {

        if (    ( $F[0] eq '<td' )
            and ( $F[-1] eq '</td>' )
            and ( $F[-1] ne '</p></td>' ) )
        {

            my @f = split />/, $F[1];

            $count++;

            if ( $count == 1 ) {
                print "locationCode: $f[1]\n";
            }
            elsif ( $count == 2 ) {
                print "deviceCode: $f[1]\n";

            }
            elsif ( $count == 3 ) {
                print "dateFrom: $f[1]\n";
            }
            elsif ( $count == 4 ) {
                print "dateTo: $f[1]\n";
            }

        }
    }
}
[download]