Usually, an <acronym> tag is of the form <acronym
title="blah">. However, phpwiki only allows the form
<acronym>, with no title parameter, thus making the tag
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Nor does the <abbr> tag work, which also requires a similar
title="blah". The tag is really useless without a title. It
doesn't seem to allow any attributes.
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I added the missing classes to lib/InlineParser.php.