Users migrating from Gregarius (gregarius.net) to TT-RSS may loose catagories when importing OPML file. Sample (shortened) OPML file below:
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="/rss/css/opml.xsl"?>
<!-- Generated by Gregarius 0.5.3 -->
<opml version="1.1">
<head>
<title>Gregarius OPML Feed</title>
<dateModified>Wed, 04 Jan 2006 20:52:50 -0500</dateModified>
</head>
<body>
<outline text="Mozilla">
<outline text="Mozilla Quality" description="Quality Assurance and Testing Blog for Mozilla Firefox and Thunderbird" type="rss" htmlUrl="http://weblogs.mozillazine.org/qa/" xmlUrl="http://weblogs.mozillazine.org/qa/atom.xml" />
<outline text="Mozilla Update::Newest Extensions" description="the way to keep your mozilla software up-to-date" type="rss" htmlUrl="https://addons.mozilla.org" xmlUrl="https://addons.mozilla.org/rss/?application=thunderbird&type=E&list=newest" />
<outline text="Mozilla Update::Newest Themes" description="the way to keep your mozilla software up-to-date" type="rss" htmlUrl="https://addons.mozilla.org" xmlUrl="http://update.mozilla.org/rss/?application=thunderbird&type=T&list=newest" />
<outline text="The Rumbling Edge" description="Weekly developments in Mozilla Thunderbird builds" type="rss" htmlUrl="http://weblogs.mozillazine.org/rumblingedge/" xmlUrl="http://weblogs.mozillazine.org/rumblingedge/atom.xml" />
</outline>
<outline text="Tech">
<outline text="Asa Dotzler - Firefox and more" description="Asa Dotzler - Firefox and more" type="rss" htmlUrl="http://weblogs.mozillazine.org/asa/" xmlUrl="http://weblogs.mozillazine.org/asa/atom.xml" />
<outline text="digg" description="digg" type="rss" htmlUrl="http://digg.com/" xmlUrl="http://digg.com/rss/index.xml" />
</outline>
</body>
</opml>
