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Re: [Groff] [Heirloom] Problem with specific TTF font
From: |
Werner LEMBERG |
Subject: |
Re: [Groff] [Heirloom] Problem with specific TTF font |
Date: |
Sun, 21 Aug 2016 17:47:55 +0200 (CEST) |
> I don't know if spaces are forbidden in the spec, but I have
> proposed the change (https://github.com/n-t-roff/heirloom-doctools/pull/34)
> to properly encode the glyph name so it does not
> interfere with PostScript.
Glyph names in a `post' table must not contain spaces, since they are
intended to be used as PostScript entities. A PostScript program uses
spaces to separate tokens.
>From the MS recommendations for OpenType fonts, section `post' table:
https://www.microsoft.com/typography/otspec/recom.htm
The PostScript glyph name must be no longer than 31 characters,
include only uppercase or lowercase English letters, European
digits, the period or the underscore, i.e. from the set
[A-Za-z0-9_.] [...]
Werner