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Manual Reference Pages  -  WEBSERVICE::CIA::SOURCE::DBM (3)

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NAME

WebService::CIA::Source::DBM - An interface to a DBM copy of the CIA World Factbook

CONTENTS

SYNOPSIS



  use WebService::CIA::Source::DBM;
  my $source = WebService::CIA::Source::DBM->new({
                                                   DBM  => factbook.dbm,
                                                   Mode => read
                                                 });



DESCRIPTION

WebService::CIA::Source::DBM is an interface to a pre-compiled DBM copy of the CIA World Factbook.

The module can also be used to make the DBM file, taking data from WebService::CIA::Parser (or WebService::CIA::Source::Web) and inserting it into a DBM.

A script to do this - webservice-cia-makedbm.pl - should be included in this module’s distribution.

METHODS

Apart from new, these methods are normally accessed via a WebService::CIA object.
new(\%opts) This method creates a new WebService::CIA::Source::DBM object. It takes a hashref of options. Valid keys are DBM and Mode.

DBM is mandatory and should be the location of the DBM file to be used.

Mode is optional and can be either read or readwrite. It defaults to read.

value($country_code, $field) Retrieve a value from the DBM.

$country_code should be the FIPS 10-4 country code as defined in <https://www.cia.gov/library/publications/the-world-factbook/appendix/appendix-d.html>.

$field should be the name of the field whose value you want to retrieve, as defined in <https://www.cia.gov/library/publications/the-world-factbook/docs/notesanddefs.html>. (WebService::CIA::Parser also creates four extra fields: URL, URL - Print, URL - Flag, and URL - Map which are the URLs of the country’s Factbook page, the printable version of that page, a GIF map of the country, and a GIF flag of the country respectively.)

all($country_code) Returns a hashref of field-value pairs for $country_code or an empty hashref if $country_code isn’t in the DBM.
set($country_code, $data) Insert or update data in the DBM.

$country_code should be as described above.

$data is a hashref of the data to store (as Field => Value).

set <B>overwritesB> any data already in the DBM under $country_code.

dbm() Returns a reference to the DBM file in use.

AUTHOR

Ian Malpass (ian-cpan@indecorous.com)

COPYRIGHT

Copyright 2003-2007, Ian Malpass

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

The CIA World Factbook’s copyright information page (<https://www.cia.gov/library/publications/the-world-factbook/docs/contributor_copyright.html>) states:



  The Factbook is in the public domain. Accordingly, it may be copied
  freely without permission of the Central Intelligence Agency (CIA).



SEE ALSO

WebService::CIA, WebService::CIA::Parser, WebService::CIA::Source::Web
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perl v5.20.3 WEBSERVICE::CIA::SOURCE::DBM (3) 2016-04-04

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