How can I add a dot after a bold word in a manual?

Question

What is the proper syntax for adding a dot that is not bold after a word in bold?

I need to write the following sentense without the dot in bold

word_in_bold. Other sentence

But

.B word_in_bold
. Other sentence

does not generate "Other sentence".

Answer 1

You can use macros which alternate font styles:

.BR bold .

will produce

bold.

There are other variants, .BI, .IR... man(7) has the details.

Answer 2

Typically for mdoc(7) macros one places the punctuation after the term

Lorem ipsum dolor sit
.B amet ,
consectetur adipiscing
.B elit ,
sed do eiusmod tempor incididunt ut labore et dolore magna
.B aliqua .

(Though, not all macros may support this.) To avoid the spaces or otherwise random vanishing of the successive punctuation, a quick review of existing usages

find /usr/src -name "*.1" -exec fgrep ".B " {} + 2>/dev/null

on OpenBSD revealed \c and of course one cannot put . alone at the beginning of a line:

Lorem ipsum dolor sit
.B amet\c
, consectetur adipiscing
.B elit\c
, sed do eiusmod tempor incididunt ut labore et dolore magna
.B aliqua\c
\&.