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Font::TTF::Coverage(3)User Contributed Perl DocumentatioFont::TTF::Coverage(3)

NAME
       Font::TTF::Coverage - Opentype coverage and class definition objects

DESCRIPTION
       Coverage	tables and class definition objects are	virtually identical
       concepts	in OpenType. Their difference comes purely in their storage.
       Therefore we can	say that a coverage table is a class definition	in
       which the class definition for each glyph is the	corresponding index in
       the coverage table. The resulting data structure	is that	a Coverage
       table has the following fields:

       cover
	   A boolean to	indicate whether this table is a coverage table	(TRUE)
	   or a	class definition (FALSE)

       val A hash of glyph ids against values (either coverage index or	class
	   value)

       fmt The storage format used is given here, but is recalculated when the
	   table is written out.

       count
	   A count of the elements in a	coverage table for use with add. Each
	   subsequent addition is added	with the current count and increments
	   the count.

       max Maximum class value in a class table.

METHODS
   new($isCover	[, vals])
       Creates a new coverage table or class definition	table, depending upon
       the value of $isCover. if $isCover then vals may	be a list of glyphs to
       include in order.  If no	$isCover, then vals is a hash of glyphs
       against class values.

   read($fh)
       Reads the coverage/class	table from the given file handle

   out($fh, $state)
       Writes the coverage/class table to the given file handle. If $state is
       1 then the output string	is returned rather than	being output to	a
       filehandle.

   $c->add($glyphid[, $class])
       Adds a glyph id to the coverage or class	table.	Returns	the index or
       class number of the glyphid added.

   $c->signature
       Returns a vector	of all the glyph ids covered by	this coverage table or
       class

   @map=$c->sort
       Sorts the coverage table	so that	indexes	are in ascending order of
       glyphid.	 Returns a map such that $map[$new_index]=$old_index.

   $c->out_xml($context)
       Outputs this coverage/class in XML

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.

perl v5.24.1			  2016-08-03		Font::TTF::Coverage(3)

NAME | DESCRIPTION | METHODS | AUTHOR | LICENSING

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