[bug #66016] Document groff deviation(s) from historical .hw handling

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?66016>

                 Summary: Document groff deviation(s) from historical .hw
handling
                   Group: GNU roff
               Submitter: None
               Submitted: Wed 24 Jul 2024 06:00:08 AM UTC
                Category: Core
                Severity: 3 - Normal
              Item Group: Documentation
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None


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Follow-up Comments:


-------------------------------------------------------
Date: Wed 24 Jul 2024 06:00:08 AM UTC By: Anonymous
In http://lists.gnu.org/r/groff/2024-04/msg00007.html Branden quoted CSTR #54
(1992):

.hw word
   Specify hyphenation points in words with embedded minus signs.
   Versions of a word with a terminal s are implied; i.e., dig-it
   implies dig-its.  This list is examined initially and after each
   suffix stripping.

He then conjectured, "I expect the second and third sentences don't apply to
GNU troff..., but our documentation says nothing about this.  Guess I'll have
to check."

In fact, the second sentence doesn't apply to groff (but does to Heirloom
troff), as illustrated by using .hw to assign hyphenation points to a made-up
word.

.de op
One brevallamarkol, two brevallamarkols.
.sp
..
.warn 0
.ll 1n
.op
.hw brev-all-a-mar-kol
.op

The third sentence still needs to be checked.







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