On Wed, Nov 17, 2021, Tadziu Hoffmann wrote: > > > - General typographic convention is to measure vertical > > motions in v's, not m's. CSTR #54's definitions of \u, \d, > > and \r do not align with this common expectation. > > I think this depends on what you consider the purpose of \d > and \u to be. Obviously they are not needed: everything they > do can be achieved with \v. However, if we assume they were > intended as an easy way to get super- and subscripts (e.g., for > footnote markers, or as in "H\d2\uO"), then you definitely want > the motion to be in units of the current font size and not in > baseline spacings. Otherwise, those super- and subscripts > would be ripped from the text lines they belong to if you > were to try setting the text double-spaced by requesting > (say) .vs 24 for a 10-point font.
I've been meaning to weigh in on the subject with the same observations. Thanks for saving me the trouble. -- Peter Schaffter https://www.schaffter.ca
