[MPEG-OTSPEC] format field names

[Rod Sheeter]

+1, good change.

Cheers, Rod S.

On Mon, Apr 1, 2024 at 12:58 AM Behdad Esfahbod via mpeg-otspec <
mpeg-otspec at lists.aau.at> wrote:

> I personally support this change.
>
> Thank you Peter,
>
> behdad
> http://behdad.org/
>
>
> On Sat, Mar 30, 2024 at 11:04 AM Peter Constable via mpeg-otspec <
> mpeg-otspec at lists.aau.at> wrote:
>
>> I’d like to hear other’s opinions:
>>
>>
>>
>> While preparing revisions for OpenType 1.9.1 and proposed revisions to
>> OFF 5th Edn WD, I noticed in sections for OT Layout tables that some
>> tables that have a format field have a field name that reflects the table
>> it is contained in.
>>
>>
>>
>>    - GPOS lookup subtables: “posFormat”
>>    - GSUB lookup subtables: “substFormat”
>>    - Coverage tables: “coverageFormat”
>>    - CaretValue tables: “caretValueFormat”
>>    - Anchor tables: “anchorFormat”
>>    - BaseCoord tables: “baseCoordFormat”
>>
>>
>>
>> This convention isn’t followed elsewhere in the spec:
>>
>>    - not in CFF / CFF2 FontDICTSelect
>>    - not in cmap subtables
>>    - not in COLR Paint, ClipList or ClipBox tables
>>    - not in DSIG SignatureRecord
>>    - not in ItemVariationStore or in DeltaSetIndexMap tables
>>
>>
>>
>> I’m inclined to rename fields like “posFormat” to simply “format”, and
>> have started to implement that in draft content for OT 1.9.1
>> <https://learn.microsoft.com/en-us/typography/opentype/otspec191alpha/changes#version-191>.
>> But this is nothing more than wanting consistency—it’s not as though having
>> redundant info in the field names creates confusion.
>>
>>
>>
>> Anyone with a strong opinion for making these field name changes, or for _
>> *not*_ making these changes?
>>
>>
>>
>>
>>
>>
>>
>> Peter
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>> mpeg-otspec at lists.aau.at
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>>
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