.\" $Id$
.\"
.\" Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate$
.Dt MANDOC_CHAR 7
.Os
.\" SECTION
.Sh NAME
.Nm mandoc_char
.Nd mandoc special characters
.\" SECTION
.Sh DESCRIPTION
This documents the special characters accepted by
.Xr mandoc 1
to format
.Xr mdoc 7
and
.Xr man 7
documents. Specific output devices of
.Xr mandoc 1 ,
dictated by the
.Fl T Ns Ar output
argument, will properly render these sequences.
.Pp
Both
.Xr mdoc 7
and
.Xr man 7
encode special characters with slightly different semantics; consult the
respective manuals for these escapes.
.Pp
Grammatic:
.Bl -tag -width 12n -offset "XXXX" -compact
.It \e(em
.Pq em-dash
.It \e(en
.Pq en-dash
.It \e-
.Pq hyphen
.It \e\e
.Pq back-slash
.It \e'
.Pq apostrophe
.It \e`
.Pq back-tick
.It \e
.Pq space
.It \e.
.Pq period
.It \e(r!
.Pq upside-down exclamation
.It \e(r?
.Pq upside-down question
.El
.\" PARAGRAPH
.Pp
Enclosures:
.Bl -tag -width 12n -offset "XXXX" -compact
.It \e(lh
.Pq left hand
.It \e(rh
.Pq right hand
.It \e(Fo
.Pq left guillemet
.It \e(Fc
.Pq right guillemet
.It \e(fo
.Pq left guilsing
.It \e(fc
.Pq right guilsing
.It \e(rC
.Pq right brace
.It \e(lC
.Pq left brace
.It \e(ra
.Pq right angle
.It \e(la
.Pq left angle
.It \e(rB
.Pq right bracket
.It \e(lB
.Pq left bracket
.It \eq
.Pq double-quote
.It \e(lq
.Pq left double-quote
.It \e(Lq
.Pq left double-quote, deprecated
.It \e(rq
.Pq right double-quote
.It \e(Rq
.Pq right double-quote, deprecated
.It \e(oq
.Pq left single-quote
.It \e(aq
.Pq right single-quote
.It \e(Bq
.Pq right low double-quote
.It \e(bq
.Pq right low single-quote
.El
.\" PARAGRAPH
.Pp
Indicatives:
.Bl -tag -width 12n -offset "XXXX" -compact
.It \e(<-
.Pq left arrow
.It \e(->
.Pq right arrow
.It \e(ua
.Pq up arrow
.It \e(da
.Pq down arrow
.It \e(<>
.Pq left-right arrow
.It \e(lA
.Pq left double-arrow
.It \e(rA
.Pq right double-arrow
.It \e(uA
.Pq up double-arrow
.It \e(dA
.Pq down double-arrow
.It \e(hA
.Pq left-right double-arrow
.El
.\" PARAGRAPH
.Pp
Mathematical:
.Bl -tag -width 12n -offset "XXXX" -compact
.It \e(es
.Pq empty set
.It \e(ca
.Pq intersection
.It \e(cu
.Pq union
.It \e(gr
.Pq gradient
.It \e(pd
.Pq partial differential
.It \e(ap
.Pq similarity
.It \e(=)
.Pq proper superset
.It \e((=
.Pq proper subset
.It \e(eq
.Pq equals
.It \e(di
.Pq division
.It \e(mu
.Pq multiplication
.It \e(pl
.Pq addition
.It \e(nm
.Pq not element
.It \e(mo
.Pq element
.It \e(Im
.Pq imaginary
.It \e(Re
.Pq real
.It \e(Ah
.Pq aleph
.It \e(te
.Pq existential quantifier
.It \e(fa
.Pq universal quantifier
.It \e(AN
.Pq logical AND
.It \e(OR
.Pq logical OR
.It \e(no
.Pq logical NOT
.It \e(st
.Pq such that
.It \e(tf
.Pq therefore
.It \e(~~
.Pq approximate
.It \e(~=
.Pq approximately equals
.It \e(=~
.Pq congruent
.It \e(Gt
.Pq greater-than, deprecated
.It \e(Lt
.Pq less-than, deprecated
.It \e(<=
.Pq less-than-equal
.It \e(Le
.Pq less-than-equal, deprecated
.It \e(>=
.Pq greater-than-equal
.It \e(Ge
.Pq greater-than-equal
.It \e(==
.Pq equal
.It \e(!=
.Pq not equal
.It \e(Ne
.Pq not equal, deprecated
.It \e(if
.Pq infinity
.It \e(If
.Pq infinity, deprecated
.It \e(na
.Pq NaN , an extension
.It \e(Na
.Pq NaN, deprecated
.It \e(+-
.Pq plus-minus
.It \e(Pm
.Pq plus-minus, deprecated
.It \e(**
.Pq asterisk
.El
.\" PARAGRAPH
.Pp
Ligatures:
.Bl -tag -width 12n -offset "XXXX" -compact
.It \e(ss
.Pq German eszett
.It \e(AE
.Pq upper-case AE
.It \e(ae
.Pq lower-case AE
.It \e(OE
.Pq upper-case OE
.It \e(oe
.Pq lower-case OE
.It \e(ff
.Pq ff ligature
.It \e(fi
.Pq fi ligature
.It \e(fl
.Pq fl ligature
.It \e(Fi
.Pq ffi ligature
.It \e(Fl
.Pq ffl ligature
.El
.\" PARAGRAPH
.Pp
Diacritics and letters:
.Bl -tag -width 12n -offset "XXXX" -compact
.It \e(ga
.Pq grave accent
.It \e(aa
.Pq accute accent
.It \e(a"
.Pq umlaut accent
.It \e(ad
.Pq dieresis accent
.It \e(a~
.Pq tilde accent
.It \e(a^
.Pq circumflex accent
.It \e(ac
.Pq cedilla accent
.It \e(ad
.Pq dieresis accent
.It \e(ah
.Pq caron accent
.It \e(ao
.Pq ring accent
.It \e(ho
.Pq hook accent
.It \e(ab
.Pq breve accent
.It \e(a-
.Pq macron accent
.It \e(-D
.Pq upper-case eth
.It \e(Sd
.Pq lower-case eth
.It \e(TP
.Pq upper-case thorn
.It \e(Tp
.Pq lower-case thorn
.It \e('A
.Pq upper-case acute A
.It \e('E
.Pq upper-case acute E
.It \e('I
.Pq upper-case acute I
.It \e('O
.Pq upper-case acute O
.It \e('U
.Pq upper-case acute U
.It \e('a
.Pq lower-case acute a
.It \e('e
.Pq lower-case acute e
.It \e('i
.Pq lower-case acute i
.It \e('o
.Pq lower-case acute o
.It \e('u
.Pq lower-case acute u
.It \e(`A
.Pq upper-case grave A
.It \e(`E
.Pq upper-case grave E
.It \e(`I
.Pq upper-case grave I
.It \e(`O
.Pq upper-case grave O
.It \e(`U
.Pq upper-case grave U
.It \e(`a
.Pq lower-case grave a
.It \e(`e
.Pq lower-case grave e
.It \e(`i
.Pq lower-case grave i
.It \e(`o
.Pq lower-case grave o
.It \e(`u
.Pq lower-case grave u
.It \e(~A
.Pq upper-case tilde A
.It \e(~N
.Pq upper-case tilde N
.It \e(~O
.Pq upper-case tilde O
.It \e(~a
.Pq lower-case tilde a
.It \e(~n
.Pq lower-case tilde n
.It \e(~o
.Pq lower-case tilde o
.It \e(:A
.Pq upper-case dieresis A
.It \e(:E
.Pq upper-case dieresis E
.It \e(:I
.Pq upper-case dieresis I
.It \e(:O
.Pq upper-case dieresis O
.It \e(:U
.Pq upper-case dieresis U
.It \e(:a
.Pq lower-case dieresis a
.It \e(:e
.Pq lower-case dieresis e
.It \e(:i
.Pq lower-case dieresis i
.It \e(:o
.Pq lower-case dieresis o
.It \e(:u
.Pq lower-case dieresis u
.It \e(:y
.Pq lower-case dieresis y
.It \e(^A
.Pq upper-case circumflex A
.It \e(^E
.Pq upper-case circumflex E
.It \e(^I
.Pq upper-case circumflex I
.It \e(^O
.Pq upper-case circumflex O
.It \e(^U
.Pq upper-case circumflex U
.It \e(^a
.Pq lower-case circumflex a
.It \e(^e
.Pq lower-case circumflex e
.It \e(^i
.Pq lower-case circumflex i
.It \e(^o
.Pq lower-case circumflex o
.It \e(^u
.Pq lower-case circumflex u
.It \e(,C
.Pq upper-case cedilla C
.It \e(,c
.Pq lower-case cedilla c
.It \e(/L
.Pq upper-case stroke L
.It \e(/l
.Pq lower-case stroke l
.It \e(/O
.Pq upper-case stroke O
.It \e(/o
.Pq lower-case stroke o
.It \e(oA
.Pq upper-case ring A
.It \e(oa
.Pq lower-case ring a
.El
.\" PARAGRAPH
.Pp
Monetary:
.Bl -tag -width 12n -offset "XXXX" -compact
.It \e(Cs
.Pq Scandinavian
.It \e(Do
.Pq dollar
.It \e(Po
.Pq pound
.It \e(Ye
.Pq yen
.It \e(Fn
.Pq florin
.It \e(ct
.Pq cent
.El
.\" PARAGRAPH
.Pp
Special symbols:
.Bl -tag -width 12n -offset "XXXX" -compact
.It \e0
.Pq white-space
.It \e(de
.Pq degree
.It \e(ps
.Pq paragraph
.It \e(sc
.Pq section
.It \e(dg
.Pq dagger
.It \e(dd
.Pq double dagger
.It \e(ci
.Pq circle
.It \e(ba
.Pq bar
.It \e(bb
.Pq broken bar
.It \e(Ba
.Pq bar, deprecated
.It \e(co
.Pq copyright
.It \e(rg
.Pq registered
.It \e(tm
.Pq trademarked
.It \e&
.Pq non-breaking space
.It \ee
.Pq escape
.It \e(Am
.Pq ampersand, deprecated
.El
.\" SECTION
.Sh COMPATIBILITY
This section documents compatibility of
.Nm
with older or existing versions of
.Xr groff 1 :
.Pp
.Bl -tag -width 12n -offset "XXXX" -compact
.It \e(ss
Renders differently in
.Fl T Ns Ar ascii
mode.
.El
.\" SECTION
.Sh SEE ALSO
.Xr mandoc 1
.\" SECTION
.Sh AUTHORS
The
.Nm
utility was written by
.An Kristaps Dzonsons Aq kristaps@openbsd.org .
