On Sun, Mar 22, 2026 at 3:45 AM Karl Williamson via Unicode < [email protected]> wrote:
> It says > > Forbid sequences of the same nonspacing mark. > Forbid sequences of more than 4 nonspacing marks (gc=Mn or gc=Me). > > I believe the traditional definition of nonspacing mark is gc=Mn. The > second line effectively redefines that definition to include enclosing > marks. Does that redefinition apply to the line above, or just to the > second line? It seems to me that sequences of the same enclosing mark > would be suspicious. > Core spec chapter 3 section 3.6.1 Combining Character Sequences definition D53 <https://www.unicode.org/versions/Unicode17.0.0/core-spec/chapter-3/#G2459> defines “*Nonspacing mark*: A combining character with the General Category of Nonspacing Mark (Mn) or Enclosing Mark (Me).” PAG will recommend clarifying the UTS #39 text a bit, and referring to D53. markus
