I think you'll have to DIY. The module is implementing unicode.org algorithm, see references in docs. In the context of Unicode, character composition is the process of replacing the code points of a base letter followed by one or more combining characters into a single precomposed character; and character decomposition is the opposite process.

In reply to Re: Unicode vulgar fraction composition by Anonymous Monk
in thread Unicode vulgar fraction composition by raygun

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":