From: luigi scarso <luigi.scarso@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: [OT] CMap Resources
Date: Tue, 22 Sep 2009 18:46:51 +0200 [thread overview]
Message-ID: <fe8d59da0909220946o27a467ffobb045964579bd8c3@mail.gmail.com> (raw)
http://opensource.adobe.com/wiki/display/cmap
Welcome to CMap Resources! CMap (Character Map) resources are used to
unidirectionally map character codes, such as a Unicode encoding form,
to CIDs (Characters IDs, meaning glyphs) of a CIDFont resource. CMap
resources, like CIDFont resources, include a /CIDSystemInfo dictionary
that specifies /Registry and /Ordering strings that must match for
compatibility between the two resources. In other words, a CMap
resource can be used with a CIDFont resource only if their /Registry
and /Ordering strings match.
Although originally designed for use with CIDFont resources, CMap
resources are also used for other purposes, such as by AFDKO's MakeOTF
tool for building 'cmap' tables for OpenType fonts when the source
font is a CIDFont resource.
The CMap resources that are available are for the latest character
collections, specifically Adobe-Identity-0, Adobe-GB1-5, Adobe-CNS1-5,
Adobe-Japan1-6, and Adobe-Korea1-2. All of the CMap resources that are
associated with each character collection are included.
--
luigi
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