[bug #56015] tty device should handle bullet character more intelligently

[G. Branden Robinson]

Follow-up Comment #4, bug #56015 (project groff):

I can't say I really understand the reasoning in the logic of the original or
as modified.

grotty(1) supports four encodings, which it calls "ascii", "latin1", "cp1047",
and "utf8".

"ascii" has neither the centered period (\[pc]) nor the middle dot (\[md]).

"latin1", and its permutation, "cp1047", have the "middle dot" (\[md]).

"utf8" has both, as well as a bullet \[bu].

I don't understand why (1), we're using .tr for these \[bu] replacements
instead of .char or .fchar and (2) why we're pretending that we don't know
what the encoding will cover if it's not UTF-8 and not ASCII.



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