URL:
<https://savannah.gnu.org/bugs/?59482>
Summary: groff -ms missing .EM macro
Project: GNU troff
Submitted by: ds26gte
Submitted on: Thu 19 Nov 2020 01:04:04 AM UTC
Category: Macro - ms
Severity: 3 - Normal
Item Group: Incorrect behaviour
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Planned Release: None
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Details:
UTP (p. 534) says -ms pre-sets the end-of-input trap .em to a macro called
.EM. The implication is that a user wanting to affect end-of-document behavior
would append to this macro rather than directly calling .em.
I have found that Heirloom troff and Neatroff both allow this. groff does
not.
groff's s.tmac sets .em to a macro called .pg@end-text. There is no .EM.
Rectifying this would allow the user the standard idiom of extending .EM in
their chosen way, instead of having to deal with the macro .pg@end-text that
looks like it was meant to stay hidden. It would also prevent the error
whereby the user, finding that modifying .EM doesn't work, calls .em directly,
thereby voiding -ms's previous assignment.
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