[mpeg-OTspec] post table: Macintosh "standard" glyph names?

Levantovsky, Vladimir vladimir.levantovsky at monotype.com
Fri Sep 13 17:33:19 CEST 2013


It seems that resolving the issue you found with glyph names would be as easy as changing the external informative reference in the “Bibliography” section – would you still prefer to have the glyph names explicitly listed in the annex to the spec?

Thank you,
Vlad


From: mpeg-OTspec at yahoogroups.com [mailto:mpeg-OTspec at yahoogroups.com] On Behalf Of Bob Hallissy
Sent: Friday, September 13, 2013 11:14 AM
To: OTspec (mpeg-OTspec at yahoogroups.com)
Subject: Re: [mpeg-OTspec] post table: Macintosh "standard" glyph names?




On 2013-09-12 at 23:07 Bob Hallissy wrote:
index 1 is given the name ".null" which is not a valid Adobe postscript glyph name -- it should be "null" instead.

After further study (looking at PostScript Language Reference) it appears that the above statement is wrong. Not only is ".null" a valid PostScript name identifier, the identifier "null" has special meaning unrelated to glyph names. Thus the correct name for glyph index 1 probably should be ".null".

If this is the case, the OFF spec section 7 "Recommendations for OFF fonts" should be modified to say:
NOTE    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_.] and should start with a letter, except the special glyph names ".notdef" and ".null" which starts with a period.
This suggests that the names list supplied in Apple's TrueType reference manual (referenced in previous email) are in fact completely accurate.

Bob






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