P::RD and grammar

[TStanley]

I am trying to parse a log file that comes from a price checker scanner, looking specifically for scanning transactions. A typical transaction is below:

Oct 31, 2013 10:40:05 AM PCKLog log
INFO: 10.20.33.251: recv - <2>747599306525<3><5><4> 
Oct 31, 2013 10:40:05 AM PCKLog log
INFO: connect PLU server = 128.20.20.211, PLU port = 31415
Oct 31, 2013 10:40:05 AM PCKLog log
INFO: connected.....
Oct 31, 2013 10:40:05 AM PCKLog log
INFO: PLU send - 12 bytes
Oct 31, 2013 10:40:05 AM PCKLog log
INFO: PLU send - 747599306525
Oct 31, 2013 10:40:06 AM PCKLog log
INFO: PLU recv - 124 bytes
Oct 31, 2013 10:40:06 AM PCKLog log
INFO: PLU recv - <?xml version="1.0" encoding="utf-8"?><PLU><desc>GHIR
+ARDELLI MINT</desc><dept>110</dept><prc1>600</prc1><deal>2</deal></PL
+U>
Oct 31, 2013 10:40:06 AM PCKLog log
INFO: disconnected.....
Oct 31, 2013 10:40:06 AM PCKLog log
INFO: 10.20.33.251: send - <2>\x0B\x1B[1F\x1B[08;08TMBheader\x1B[2002F
+\x1B[000;24CGHIRARDELLI MINT\x1B[6F\x1B[000;36C2/$6.00<3>8<4>
Oct 31, 2013 10:40:11 AM PCKLog log
INFO: 10.20.33.251: send - <2>\x0B\x1B[1F\x1B[008;08T\x1B[1002J<3>8<4>

Using Parse::RecDescent, I have developed the following code:

#!C:\Perl\bin\perl
use strict;
use warnings;
use Parse::RecDescent;
use Data::Dumper;

BEGIN{ $::RD_AUTOACTION=q{ [@item[1..$#item]] };  }

my $grammar = q{
        transaction:    date|scan|date|connectPLU|date|connected|date|
+sending|date|sent|date|receiving|date|received|date|disconnected|date
+|display1|date|display2
                 date:          /([Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep
+|Oct|Nov|Dec]\\\\s+\\\\d{1,2}, \\\\d{4}) (\\\\d{1,2}:\\\\d{1,2}):\\\\
+d{1,2} ([AM|PM]) PCKLog log/ { print"$item[0]: $item[1] - $item[2]$it
+em[3]\\\\n"; } |
         scan:          /INFO: (\\\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d
+{1,3}): recv - \\<\\d\\>(\\d+)\\<\\d\\>\\<\\d\\>\\<\\d\\>/ |
                 connectPLU:    /INFO: connect PLU server = \\d{1,3}\\
+.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}, PLU port = \\d+/ |
                 connected:     /INFO: connected\\.\\.\\.\\.\\./ |
                 sending:       /INFO: PLU send - \\d{1,2} bytes/ |
                 sent:          /INFO: PLU send - (\\d+)/ |
                 receiving:     /INFO: PLU recv - \\d{1,3} bytes/ |
                 received:      /INFO: PLU recv - \\<\\?xml .*\\?\\>\\
+<PLU\\>\\<desc\\>(.*)\\<\\/desc\\>\\<dept\\>\\d{1,4}\\<\\/dept\\>\\<p
+rc1\\>(\\d{1,4})\\<\\/prc1\\>\\<deal\\>\\d{1,3}\\<\\/deal\\>\\<\\/PLU
+\\>/ |
                 disconnected:  /INFO: disconnected\\.\\.\\.\\.\\./ |
                 display1:      /INFO: (\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}
+\\.\\d{1,3}): send - .*/ |
                 display2:      /INFO: (\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}
+\\.\\d{1,3}): send - .*/
};

my $parser = new Parse::RecDescent($grammar) or die "Bad grammar: $!\\
+n";

my($INFILE,$storelog);
my @log;

$storelog = "SingleTrans.txt";

open $INFILE,"<",$storelog or die "Can't open $storelog: $!\\n";
@log=<$INFILE>;
close $INFILE;

my $tree=$parser->transaction(@log);

print Dumper($tree);

What I am getting with the above code is just the word 'date' printed out when I dump the $tree variable. I went through most of the resources here on PM, as well as some other stuff I found on the web.

What I need to pull from the scan log is the date/time the transaction is occuring, the IP address of the scanner that is making the request, the PLU that is being sent and the response back, which is the product description, so the information based on the above listed transaction would be:

Date:        Oct 31, 2013 - 10:40
Scanner:     10.20.33.251
PLU:         747599306525
Description: GHIRARDELLI MINT

Any help would be greatly appreciated as always.

[toolic]

I've never used it before, but it looks fun! I think you should start small, then build up your grammar. I got rid of the square brackets around you month names. They are for regex character classes, if I understand this module correctly:

my $grammar = q{
    transaction:    date
    date:          /(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\
+s+\d{1,2},/
};

# My output...
# $VAR1 = 'Oct 31,';

UPDATE: and a little more readable:

my $grammar = q{
    transaction:    date
    date:          /(
                        (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|D
+ec)   # Month
                        \s+ \d{1,2} , \s+ \d{4}                       
+      # Day, Year
                    )
                    \s+ (\d{1,2} : \d{1,2}) : \d{1,2} \s+ (A|P)M      
+      # Time
                    \s+ PCKLog \s+ log
                   /x
};