Font::TTF::OldCmap

NAME

Font::TTF::OldCmap - Character map table

This module is deprecated

DESCRIPTION

Looks after the character map. The primary structure used for handling a cmap is the Font::TTF::Segarr which handles the segmented arrays of format 4 tables, and in a simpler form for format 0 tables.

Due to the complexity of working with segmented arrays, most of the handling of such arrays is via methods rather than via instance variables.

One important feature of a format 4 table is that it always contains a segment with a final address of 0xFFFF. If you are creating a table from scratch this is important (although Font::TTF::Segarr can work quite happily without it).

INSTANCE VARIABLES

The instance variables listed here are not preceded by a space due to their emulating structural information in the font.

Tables

An array of subtables ([0..Num-1])

Each subtables also has its own instance variables which are, again, not preceded by a space.
Platform

The platform number for this subtable

Encoding

The encoding number for this subtable

Format

Gives the stored format of this subtable

METHODS

$t->read
Reads the cmap into memory. Format 4 subtables read the whole subtable and fill in the segmented array accordingly.

Format 2 subtables are not read at all.

$t->ms_lookup($uni)
Given a Unicode value in the MS table (Platform 3, Encoding 1) locates that table and looks up the appropriate glyph number from it.

$t->find_ms
Finds the Microsoft Unicode table and sets the "mstable" instance variable to it if found. Returns the table it finds.

$t->out($fh)
Writes out a cmap table to a filehandle. If it has not been read, then just copies from input file to output

@map = $t->reverse([$num])
Returns a reverse map of the table of given number or the Microsoft cmap. I.e. given a glyph gives the Unicode value for it.

BUGS

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.