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<h1 class="headline">Template::Plugin::Datafile</h1>
<h2 class="subhead">Plugin to construct records from a simple data file</h1>
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<pre><span class="tt">[% USE mydata = datafile('/path/to/datafile') %]</span>
<span class="tt">[% USE mydata = datafile('/path/to/datafile', delim = '|') %]</span>
<span class="tt">[% FOREACH record = mydata %]</span>
<span class="tt">[% record.this %]</span> <span class="tt">[% record.that %]</span>
<span class="tt">[% END %]</span></pre>
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<p>
This plugin provides a simple facility to construct a list of hash
references, each of which represents a data record of known structure,
from a data file.
</p>
<pre><span class="tt">[% USE datafile(filename) %]</span></pre>
<p>
A absolute filename must be specified (for this initial implementation at
least - in a future version it might also use the
<code>INCLUDE_PATH</code>). An optional <code>delim</code> parameter may
also be provided to specify an alternate delimiter character.
</p>
<pre><span class="tt">[% USE userlist = datafile('/path/to/file/users') %]</span>
<span class="tt">[% USE things = datafile('items', delim = '|') %]</span></pre>
<p>
The format of the file is intentionally simple. The first line defines
the field names, delimited by colons with optional surrounding
whitespace. Subsequent lines then defines records containing data items,
also delimited by colons. e.g.
</p>
<pre>id : name : email : tel
abw : Andy Wardley : abw@tt2.org : 555-1234
sam : Simon Matthews : sam@tt2.org : 555-9876</pre>
<p>
Each line is read, split into composite fields, and then used to
initialise a hash array containing the field names as relevant keys. The
plugin returns a blessed list reference containing the hash references in
the order as defined in the file.
</p>
<pre><span class="tt">[% FOREACH user = userlist %]</span>
<span class="tt">[% user.id %]</span>: <span class="tt">[% user.name %]</span>
<span class="tt">[% END %]</span></pre>
<p>
The first line of the file <b>must</b> contain the field definitions.
After the first line, blank lines will be ignored, along with comment
line which start with a '<code>#</code>'.
</p>
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<p>
Should handle file names relative to <code>INCLUDE_PATH</code>. Doesn't
permit use of '<code>:</code>' in a field. Some escaping mechanism is
required.
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Andy Wardley <abw@wardley.org> <a
href="http://wardley.org/">http://wardley.org/</a>
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<p>
Copyright (C) 1996-2007 Andy Wardley. All Rights Reserved.
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<p>
This module is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
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