[bug #66481] [troff] `\w|x|` no longer works on the bleeding edge of Git

[Paul Eggert]

Follow-up Comment #8, bug #66481 (group groff):


> +  case '|':
> +    error("support for '|' as an argument delimiter is deprecated and"
> +         " will be withdrawn in a future release");

A quick survey of what's installed on my desktop suggests that this will cause
diagnostics to be issued for the man pages for gawk, grep, and rcs.

The uses I see are at the top level, so how about if groff issues the warning
only when \w is nested inside some other quoted construct? I'd rather not have
to go through those long-working man pages to change '|' to some other
character. And there should be no problem with \w|X| when it's not nested.

PS. I see that some traditional troff macro libraries in Solaris 10
/usr/lib/tmac use control-G instead of ', under the theory that user strings
never contain control-G. I'd hate to have to do that sort of thing.


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