-.\" $Id: mandoc_char.7,v 1.71 2018/08/08 14:16:08 schwarze Exp $
+.\" $Id: mandoc_char.7,v 1.77 2020/02/13 16:18:29 schwarze Exp $
.\"
.\" Copyright (c) 2003 Jason McIntyre <jmc@openbsd.org>
.\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
-.\" Copyright (c) 2011, 2013, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
+.\" Copyright (c) 2011,2013,2015,2017-2020 Ingo Schwarze <schwarze@openbsd.org>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
-.Dd $Mdocdate: August 8 2018 $
+.Dd $Mdocdate: February 13 2020 $
.Dt MANDOC_CHAR 7
.Os
.Sh NAME
names; instead, provide ASCII transcriptions of the names.
.Ss Dashes and Hyphens
In typography there are different types of dashes of various width:
-the hyphen (-),
+the hyphen (\(hy),
the en-dash (\(en),
the em-dash (\(em),
and the mathematical minus sign (\(mi).
.Fl T Cm utf8
and
.Fl T Cm html .
-But currently, no practically relevant manual page formatter actually
-requires that subtlety, so in manual pages just write plain
+But currently, no practically relevant manual page formatter requires
+that subtlety, so in manual pages, it is sufficient to write plain
.Sq -
to represent hyphen, minus, and hyphen-minus.
.Pp
.Xr roff 7
manual.
.Pp
-Spacing:
+Spaces, non-breaking unless stated otherwise:
.Bl -column "Input" "Description" -offset indent -compact
.It Em Input Ta Em Description
-.It Sq \e\ \& Ta unpaddable non-breaking space
-.It \e\(ti Ta paddable non-breaking space
-.It \e0 Ta unpaddable, breaking digit-width space
+.It Sq \e\ \& Ta unpaddable space
+.It \e\(ti Ta paddable space
+.It \e0 Ta digit-width space
.It \e| Ta one-sixth \e(em narrow space, zero width in nroff mode
.It \e^ Ta one-twelfth \e(em half-narrow space, zero width in nroff
.It \e& Ta zero-width space
+.It \e) Ta zero-width space transparent to end-of-sentence detection
.It \e% Ta zero-width space allowing hyphenation
+.It \e: Ta zero-width space allowing line break
.El
.Pp
Lines:
.It \e(\(aqI Ta \('I Ta acute I
.It \e(\(aqO Ta \('O Ta acute O
.It \e(\(aqU Ta \('U Ta acute U
+.It \e(\(aqY Ta \('Y Ta acute Y
.It \e(\(aqa Ta \('a Ta acute a
.It \e(\(aqe Ta \('e Ta acute e
.It \e(\(aqi Ta \('i Ta acute i
.It \e(\(aqo Ta \('o Ta acute o
.It \e(\(aqu Ta \('u Ta acute u
+.It \e(\(aqy Ta \('y Ta acute y
.It \e(\(gaA Ta \(`A Ta grave A
.It \e(\(gaE Ta \(`E Ta grave E
.It \e(\(gaI Ta \(`I Ta grave I
.Xr mandoc 1
also supports the
.Pp
-.Dl \eN\(aq Ns Ar number Ns \(aq
+.Dl \eN\(aq Ns Ar number Ns \(aq and \e[ Ns Cm char Ns Ar number ]
.Pp
-escape sequence, inserting the character
+escape sequences, inserting the character
.Ar number
from the current character set into the output.
Of course, this is inherently non-portable and is already marked
-as deprecated in the Heirloom roff manual.
-For example, do not use \eN\(aq34\(aq, use \e(dq, or even the plain
+as deprecated in the Heirloom roff manual;
+on top of that, the second form is a GNU extension.
+For example, do not use \eN\(aq34\(aq or \e[char34], use \e(dq,
+or even the plain
.Sq \(dq
character where possible.
.Sh COMPATIBILITY