# phpman > man > Font::TTF::Prep(3pm)

## NAME
    [Font::TTF::Prep](https://www.chedong.com/phpMan.php/perldoc/Font%3A%3ATTF%3A%3APrep/markdown) - Preparation hinting program. Called when ppem changes

## DESCRIPTION
    This is a minimal class adding nothing beyond a table, but is a repository for prep type
    information for those processes brave enough to address hinting.

  $t->read
    Reads the data using "read_dat".

  $t->out_xml($context, $depth)
    Outputs Prep program as XML

  $t->XML_end($context, $tag, %attrs)
    Parse all that hinting code

## BUGS
    None known

## AUTHOR
    Martin Hosken <<http://scripts.sil.org/FontUtils>>.

## LICENSING
    Copyright (c) 1998-2016, SIL International (<http://www.sil.org>)

    This module is released under the terms of the Artistic License 2.0. For details, see the full
    text of the license in the file LICENSE.