comment on

Should
31=aaaaaa38=bbbbbbb
return
31 => 'aaaaaa', 38 => 'bbbbbbb'
or
31 => 'aaaaaa3', 8 => 'bbbbbbb'
That's why @tags must be populated in advance and must be in order

use strict;
use warnings;

my @tags = qw(
     8   9  35  49  56  50  57
    34  52  81  11  14  17  20
    31  32  37  38  39  54  55
    60  50  51  98 109 163 167
   200 207  40  44 113  56  10
);

my $re = '\\[' . join('', map { "($_)=(.*?)" } @tags) . '\\]';

while (<DATA>) {
   chomp;

   my %hash = /$re/;

   if (not %hash) {
      warn("Line $. did not match\n");
      next;
   }

   foreach my $tag (@tags) {
      printf("%-3s => %s\n", $tag, $hash{$tag});
   }
   print("\n");
}

__DATA__
2005/11/18 00:07:18:328: FIXPump: Received data on connection {OBMSCNX
+} [8=FIX.4.29=040535=849=EXLINK256=DB_ORDER50=DESRISKGATEWAY57=DCN323
+0134=4045652=20051118-05:07:181=ATOP116=0.0000000011=DES:fud632_20051
+11814=15.000017=0131730438520=031=1531.0000000032=1.000037=1317260632
+38=15.000039=254=255=NamerOfContr60=20051118-05:07:18150=2151=0.00001
+98=13173047161317260632109=DCN3230163=0167=FUT200=200512207=TSE40=244
+=1531.000000005113=06556=20051117-23:06:4910=021]
[download]

or with sorted output:

use strict;
use warnings;

my @tags = qw(
     8   9  35  49  56  50  57
    34  52  81  11  14  17  20
    31  32  37  38  39  54  55
    60  50  51  98 109 163 167
   200 207  40  44 113  56  10
);

my @sorted_tag = sort { $a <=> $b } @tags;

my $re = '\\[' . join('', map { "($_)=(.*?)" } @tags) . '\\]';

while (<DATA>) {
   chomp;

   my %hash = /$re/;

   if (not %hash) {
      warn("Line $. did not match\n");
      next;
   }

   foreach my $tag (@sorted_tags) {
      printf("%-3s => %s\n", $tag, $hash{$tag});
   }
   print("\n");
}

__DATA__
2005/11/18 00:07:18:328: FIXPump: Received data on connection {OBMSCNX
+} [8=FIX.4.29=040535=849=EXLINK256=DB_ORDER50=DESRISKGATEWAY57=DCN323
+0134=4045652=20051118-05:07:181=ATOP116=0.0000000011=DES:fud632_20051
+11814=15.000017=0131730438520=031=1531.0000000032=1.000037=1317260632
+38=15.000039=254=255=NamerOfContr60=20051118-05:07:18150=2151=0.00001
+98=13173047161317260632109=DCN3230163=0167=FUT200=200512207=TSE40=244
+=1531.000000005113=06556=20051117-23:06:4910=021]
[download]

Output

8   => FIX.4.2
9   => 0405
10  => 021
11  => DES:fud632_20051118
14  => 15.0000
17  => 01317304385
20  => 0
31  => 1531.00000000
32  => 1.0000
34  => 40456
35  => 8
37  => 1317260632
38  => 15.0000
39  => 2
40  => 2
44  => 1531.000000005
49  => EXLINK2
50  => 21
50  => 21
51  => 0.00001
52  => 20051118-05:07:1
54  => 2
55  => NamerOfContr
56  => 20051117-23:06:49
56  => 20051117-23:06:49
57  => DCN32301
60  => 20051118-05:07:181
81  => ATOP116=0.00000000
98  => 13173047161317260632
109 => DCN3230
113 => 065
163 => 0
167 => FUT
200 => 200512
207 => TSE
[download]

In reply to Re^3: Message regex by ikegami
in thread Message regex by minixman

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