This seems to achieve your requirements. You may need to tighten the regexs depending on how faithful the real data is to the sample provided.

Code

#! perl -slw
use strict;
use Data::Dumper;

my %corps;

while (<DATA>) {
    chomp;
    my $name = $_;
    $corps{$name} = [];
    <DATA>;
    while(<DATA>) {
        chomp;
        last if /^\s*$/;
        my @stuff = /^\d\s+((\d{3})\d+)\s+(\d+)/;
        push @{$corps{$name}}, {bid=>$stuff[0], eid=>$stuff[2], prefix
+=>$stuff[1]};
    }
}

print Dumper \%corps;

__DATA__
ABC corp.

1   1002003   1002007  some text here
2   1011999   1012020  other text here

XYZ Ltd.

1   2031994   2032071  some text here
2   2021996   2022030  other text here
1   1871995   1872031  some text here
2   1772004   1772021  other text here

PQR corp.

1   1072003   1072007  some text here
2   2011999   2012020  other text here

LNM Ltd.

1   2041994   2042071  some text here
2   2051996   2052030  other text here
1   1971995   1972031  some text here
2   1472004   1472021  other text here

[download]

Output 

c:\test>226013
$VAR1 = {
          'XYZ Ltd.' => [
                          {
                            'bid' => '2031994',
                            'prefix' => '203',
                            'eid' => '2032071'
                          },
                          {
                            'bid' => '2021996',
                            'prefix' => '202',
                            'eid' => '2022030'
                          },
                          {
                            'bid' => '1871995',
                            'prefix' => '187',
                            'eid' => '1872031'
                          },
                          {
                            'bid' => '1772004',
                            'prefix' => '177',
                            'eid' => '1772021'
                          }
                        ],
          'ABC corp.' => [
                           {
                             'bid' => '1002003',
                             'prefix' => '100',
                             'eid' => '1002007'
                           },
                           {
                             'bid' => '1011999',
                             'prefix' => '101',
                             'eid' => '1012020'
                           }
                         ],
          'LNM Ltd.' => [
                          {
                            'bid' => '2041994',
                            'prefix' => '204',
                            'eid' => '2042071'
                          },
                          {
                            'bid' => '2051996',
                            'prefix' => '205',
                            'eid' => '2052030'
                          },
                          {
                            'bid' => '1971995',
                            'prefix' => '197',
                            'eid' => '1972031'
                          },
                          {
                            'bid' => '1472004',
                            'prefix' => '147',
                            'eid' => '1472021'
                          }
                        ],
          'PQR corp.' => [
                           {
                             'bid' => '1072003',
                             'prefix' => '107',
                             'eid' => '1072007'
                           },
                           {
                             'bid' => '2011999',
                             'prefix' => '201',
                             'eid' => '2012020'
                           }
                         ]
        };


c:\test>

[download]

Examine what is said, not who speaks.

The 7th Rule of perl club is -- pearl clubs are easily damaged. Use a diamond club instead.

In reply to Re: Records question by BrowserUk
in thread Records question by dave8775

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