[bug #65829] Want way to translate a character to \~

[Dave]

URL:
  <https://savannah.gnu.org/bugs/?65829>

                 Summary: Want way to translate a character to \~
                   Group: GNU roff
               Submitter: barx
               Submitted: Mon 03 Jun 2024 12:06:58 AM CDT
                Category: Core
                Severity: 1 - Wish
              Item Group: Feature change
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None


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Follow-up Comments:


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Date: Mon 03 Jun 2024 12:06:58 AM CDT By: Dave <barx>
Comments 10 and 11 of bug #55154 point out that due to the way .tr and .char
and their ilk handle translations, there is no way to translate an input
character to a stretchable unbreakable space.

The use case presented there (of working around the now-fixed bug #62300 in
older preconvs) would not be helped by a fix to this bug, since this fix would
not be available in older groffs.  But there are other reasons one might want
to translate an input character to \~.

As Bjarni points out in bug #65654, many common Unix text-display tools make
U+0020 and U+00A0 visually indistinguishable, so the user might choose to have
a different character represent U+00A0 and let groff translate it
appropriately.  While this is a simple translation to preprocess before groff
sees the input, it's such a simple translation that groff ought to be able to
handle it itself.







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