Feature for Case Sensitive Forms [CASE]?

can you please tell how that works.


What exactly do you don’t understand? How to generate the feature or how to use it in an application?

Officially, case is for all-caps typesetting:

‘Shifts various punctuation marks up to a position that works better with all-capital sequences or sets of lining figures; also changes oldstyle figures to lining figures. By default, glyphs in a text face are designed to work with lowercase characters. Some characters should be shifted vertically to fit the higher visual center of all-capital or lining text. Also, lining figures are the same height (or close to it) as capitals, and fit much better with all-capital text.’
Source: http://www.microsoft.com/typography/otspec/features_ae.htm#case

Glyphs with .case and .lf suffixes will be added automatically to case. Perhaps you want to have slash.case, parenright.case and parenleft.case, which better fit your uppercase glyphs. You may want to copy your Germandbls to germandbls.case and so on…

it was about how to generate the feature.

Thx Rainer, as always with Glyphs:
I didnt imagine it to be so simple.