Para escapar punto al principio de la línea de escritura uso \[char46]
:
\[char46]SH foo
impresiones
.SH foo
Este es un comportamiento esperado, pero debe fijarse en la página del manual. Here es un informe de error.
A continuación, puede leer la descripción de \\
(abreviado) y \.
(de las páginas de información).
-- Escape: \\
[...]
`\\' is a `delayed' backslash; more precisely, it is the default
escape character followed by a backslash, which no longer has
special meaning due to the leading escape character. It is _not_
an escape sequence in the usual sense! In any unknown escape
sequence `\X' the escape character is ignored and X is printed.
But if X is equal to the current escape character, no warning is
emitted.
As a consequence, only at top-level or in a diversion a backslash
glyph is printed; in copy-in mode, it expands to a single
backslash which then combines with the following character to an
escape sequence.
[...]
-- Escape: \.
Similar to `\\', the sequence `\.' isn't a real escape sequence.
As before, a warning message is suppressed if the escape character
is followed by a dot, and the dot itself is printed.