On Sun, Apr 09, 2023 at 02:11:17PM -0500, G. Branden Robinson wrote: > At 2023-04-08T19:38:49-0500, G. Branden Robinson wrote: > > Yes. Technically, this changed behavior is the result of a bug fix to > > bring our rendering of ms documents more in line with AT&T troff ms, and > > we don't ordinarily document bug fixes in the NEWS file. > > > > https://savannah.gnu.org/bugs/?62688
Hmm, just been trying to look a bit into this. What I found was https://mail.gnu.org/archive/html/groff/2022-07/msg00000.html https://mail.gnu.org/archive/html/groff/2022-07/msg00002.html and http://www.bitsavers.org/pdf/att/unix/7th_Edition/UNIX_Programmers_Manual_Seventh_Edition_Vol_2_1983.pdf Looking at page 158, in "8. Braces for Grouping", I see quite a bit of white-space before "Rule: Braces can always be used to force EQN to treat something as a unit," which seems to correspond to .EQ e sup {i omega t} .EN .sp Rule: Braces can .ul always be used to force .UC EQN to treat something as a unit, in the source code. So the ".sp" clearly does affect spacing here (after .EN). On page 147 where we have "There is also a ·shorthand notation so in-line expressions" it also appears that .PP following the .EN in the source code does result in some additional whitespace (although it's less obvious): .EQ I (3.1a) x = f(y/2) + y/2 .EN .PP There is also a shorthand notation so in-line expressions Also on page 159, compare the spacing before "11. Summation, Integral, Etc". There clearly was a lot more spacing there in the original document. .P1 (a sup 2 /b sub 2 ) sup half .P2 .SC "Summation, Integral, Etc." (where .P2 expands to .DE) So the change really looks like a regression rather than a bug fix to me. > > But since you're the second person to have raised this issue to the > > mailing list, it seems it might be worth adding a NEWS item about it. > > So I'll see about that. > > Here is my proposed text. > > +o The s (ms) macro package now enables the formatter's "no-space mode" > + after ending displays (`DE`) and equations (`EQ`); this is to improve "EN" instead of "EQ" (so it's consistent with "DE")? (but I'd actually prefer to revert that change) Christof -- https://cmeerw.org sip:cmeerw at cmeerw.org mailto:cmeerw at cmeerw.org xmpp:cmeerw at cmeerw.org
