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Clarify the use of hyphens in glyph names #1362

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11 changes: 8 additions & 3 deletions docs/OpenTypeFeatureFileSpecification.md
Original file line number Diff line number Diff line change
Expand Up @@ -10,8 +10,8 @@ Copyright 2015-2021 Adobe. All Rights Reserved. This software is licensed as
OpenSource, under the Apache License, Version 2.0. This license is available at:
http://opensource.org/licenses/Apache-2.0.

Document version 1.26
Last updated 7 June 2021
Document version 1.26.1
Last updated 1 Aug 2023

**Caution: Portions of the syntax unimplemented by Adobe are subject to change.**

Expand Down Expand Up @@ -615,7 +615,8 @@ supported for development glyph names:
U+007C | Vertical bar
U+007E ~ Tilde

However, none of these characters are allowed at the start of a glyph name.
However, none of these characters are allowed at the start of a glyph name and
a hyphen may not be the last character in a name.

For glyphs where the development glyph name differs from the final production
glyph name, an implementation of the feature file syntax must be able to accept
Expand Down Expand Up @@ -3998,6 +3999,10 @@ along with the tag `sbit`.
<a name="11"></a>
## 11. Document revisions

<<<<<<< HEAD
**v1.26.1 [1 Aug 2023]:**
* Clarify the use of hyphens in [glyph names](#2.f.i)

**v1.26 [7 June 2021]:**
* Clarified syntax of [keywords](#2.c), [glyph names](#2.f.i),
[named glyph classes](#2.g.iii), [tags](#2.h),
Expand Down