-.\" $Id: man.7,v 1.6 2009/03/27 14:56:15 kristaps Exp $
+.\" $Id: man.7,v 1.143 2019/03/02 22:04:40 schwarze Exp $
.\"
-.\" Copyright (c) 2009 Kristaps Dzonsons <kristaps@openbsd.org>
+.\" Copyright (c) 2009, 2010, 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
+.\" Copyright (c) 2011-2015,2017,2018,2019 Ingo Schwarze <schwarze@openbsd.org>
+.\" Copyright (c) 2017 Anthony Bentley <bentley@openbsd.org>
+.\" Copyright (c) 2010 Joerg Sonnenberger <joerg@netbsd.org>
.\"
.\" 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.
+.\" 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: March 27 2009 $
-.Dt man 7
+.\" 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: March 2 2019 $
+.Dt MAN 7
.Os
-.\" SECTION
.Sh NAME
.Nm man
-.Nd man language reference
-.\" SECTION
+.Nd legacy formatting language for manual pages
.Sh DESCRIPTION
The
.Nm man
-language was historically used to format
-.Ux
-manuals. In this reference document, we describe the syntax and
-structure of the
-.Nm
-language.
-.Pp
-.Em \&Do not ever
-use
-.Nm
-to write your manuals. Use the
+language was the standard formatting language for
+.At
+manual pages from 1979 to 1989.
+Do not use it to write new manual pages: it is a purely presentational
+language and lacks support for semantic markup.
+Use the
.Xr mdoc 7
language, instead.
-.\" PARAGRAPH
.Pp
-An
+In a
.Nm
-document follows simple rules: lines beginning with the control
-character
+document, lines beginning with the control character
.Sq \&.
-are parsed for macros. Other lines are interpreted within the scope of
-prior macros:
+are called
+.Dq macro lines .
+The first word is the macro name.
+It usually consists of two capital letters.
+For a list of portable macros, see
+.Sx MACRO OVERVIEW .
+The words following the macro name are arguments to the macro.
+.Pp
+Lines not beginning with the control character are called
+.Dq text lines .
+They provide free-form text to be printed; the formatting of the text
+depends on the respective processing context:
.Bd -literal -offset indent
\&.SH Macro lines change control state.
-Other lines are interpreted within the current state.
+Text lines are interpreted within the current state.
.Ed
-.\" SECTION
-.Sh INPUT ENCODING
-.Nm
-documents may contain only graphable 7-bit ASCII characters and the
-space character
-.Sq \ .
-All manuals must have
-.Ux
-.Sq \en
-line termination.
-.Pp
-Blank lines are acceptable; where found, the output will assert a
-vertical space.
.Pp
-The
-.Sq \ec
-escape is common in historical
+Many aspects of the basic syntax of the
.Nm
-documents; if encountered at the end of a word, it ensures that the
-subsequent word isn't off-set by whitespace.
-.\" SUB-SECTION
-.Ss Special Characters
-Special character sequences begin with the escape character
-.Sq \e
-followed by either an open-parenthesis
-.Sq \&(
-for two-character sequences; an open-bracket
-.Sq \&[
-for n-character sequences (terminated at a close-bracket
-.Sq \&] ) ;
-or a single one-character sequence.
-.Pp
-Characters may alternatively be escaped by a slash-asterisk,
-.Sq \e* ,
-with the same combinations as described above. This form is deprecated.
-.\" SECTION
-.Sh STRUCTURE
-Macros are one to three three characters in length and begin with a
-control character ,
-.Sq \&. ,
-at the beginning of the line. An arbitrary amount of whitespace may
-sit between the control character and the macro name. Thus,
-.Sq \&.PP
+language are based on the
+.Xr roff 7
+language; see the
+.Em LANGUAGE SYNTAX
and
-.Sq \&.\ \ \ \&PP
-are equivalent.
+.Em MACRO SYNTAX
+sections in the
+.Xr roff 7
+manual for details, in particular regarding
+comments, escape sequences, whitespace, and quoting.
.Pp
-All
+Each
.Nm
-macros follow the same structural rules:
+document starts with the
+.Ic TH
+macro specifying the document's name and section, followed by the
+.Sx NAME
+section formatted as follows:
.Bd -literal -offset indent
-\&.YO \(lBbody...\(rB
+\&.TH PROGNAME 1 1979-01-10
+\&.SH NAME
+\efBprogname\efR \e(en one line about what it does
+.Ed
+.Sh MACRO OVERVIEW
+This overview is sorted such that macros of similar purpose are listed
+together.
+Deprecated and non-portable macros are not included in the overview,
+but can be found in the alphabetical reference below.
+.Ss Page header and footer meta-data
+.Bl -column "RS, RE" description
+.It Ic TH Ta set the title: Ar name section date Op Ar source Op Ar volume
+.It Ic AT Ta display AT&T UNIX version in the page footer (<= 1 argument)
+.It Ic UC Ta display BSD version in the page footer (<= 1 argument)
+.El
+.Ss Sections and paragraphs
+.Bl -column "RS, RE" description
+.It Ic SH Ta section header (one line)
+.It Ic SS Ta subsection header (one line)
+.It Ic PP Ta start an undecorated paragraph (no arguments)
+.It Ic RS , RE Ta reset the left margin: Op Ar width
+.It Ic IP Ta indented paragraph: Op Ar head Op Ar width
+.It Ic TP Ta tagged paragraph: Op Ar width
+.It Ic PD Ta set vertical paragraph distance: Op Ar height
+.It Ic in Ta additional indent: Op Ar width
+.El
+.Ss Physical markup
+.Bl -column "RS, RE" description
+.It Ic B Ta boldface font
+.It Ic I Ta italic font
+.It Ic SB Ta small boldface font
+.It Ic SM Ta small roman font
+.It Ic BI Ta alternate between boldface and italic fonts
+.It Ic BR Ta alternate between boldface and roman fonts
+.It Ic IB Ta alternate between italic and boldface fonts
+.It Ic IR Ta alternate between italic and roman fonts
+.It Ic RB Ta alternate between roman and boldface fonts
+.It Ic RI Ta alternate between roman and italic fonts
+.El
+.Sh MACRO REFERENCE
+This section is a canonical reference to all macros, arranged
+alphabetically.
+For the scoping of individual macros, see
+.Sx MACRO SYNTAX .
+.Bl -tag -width 3n
+.It Ic AT
+Sets the volume for the footer for compatibility with man pages from
+.At
+releases.
+The optional arguments specify which release it is from.
+.It Ic B
+Text is rendered in bold face.
+.It Ic BI
+Text is rendered alternately in bold face and italic.
+Thus,
+.Sq .BI this word and that
+causes
+.Sq this
+and
+.Sq and
+to render in bold face, while
+.Sq word
+and
+.Sq that
+render in italics.
+Whitespace between arguments is omitted in output.
+.Pp
+Example:
+.Pp
+.Dl \&.BI bold italic bold italic
+.It Ic BR
+Text is rendered alternately in bold face and roman (the default font).
+Whitespace between arguments is omitted in output.
+See also
+.Ic BI .
+.It Ic DT
+Restore the default tabulator positions.
+They are at intervals of 0.5 inches.
+This has no effect unless the tabulator positions were changed with the
+.Xr roff 7
+.Ic ta
+request.
+.It Ic EE
+This is a non-standard GNU extension.
+In
+.Xr mandoc 1 ,
+it does the same as the
+.Xr roff 7
+.Ic fi
+request (switch to fill mode).
+.It Ic EX
+This is a non-standard GNU extension.
+In
+.Xr mandoc 1 ,
+it does the same as the
+.Xr roff 7
+.Ic nf
+request (switch to no-fill mode).
+.It Ic HP
+Begin a paragraph whose initial output line is left-justified, but
+subsequent output lines are indented, with the following syntax:
+.Pp
+.D1 Pf . Ic HP Op Ar width
+.Pp
+The
+.Ar width
+argument is a
+.Xr roff 7
+scaling width.
+If specified, it's saved for later paragraph left margins;
+if unspecified, the saved or default width is used.
+.Pp
+This macro is portable, but deprecated
+because it has no good representation in HTML output,
+usually ending up indistinguishable from
+.Ic PP .
+.It Ic I
+Text is rendered in italics.
+.It Ic IB
+Text is rendered alternately in italics and bold face.
+Whitespace between arguments is omitted in output.
+See also
+.Ic BI .
+.It Ic IP
+Begin an indented paragraph with the following syntax:
+.Pp
+.D1 Pf . Ic IP Op Ar head Op Ar width
+.Pp
+The
+.Ar width
+argument is a
+.Xr roff 7
+scaling width defining the left margin.
+It's saved for later paragraph left-margins; if unspecified, the saved or
+default width is used.
+.Pp
+The
+.Ar head
+argument is used as a leading term, flushed to the left margin.
+This is useful for bulleted paragraphs and so on.
+.It Ic IR
+Text is rendered alternately in italics and roman (the default font).
+Whitespace between arguments is omitted in output.
+See also
+.Ic BI .
+.It Ic LP
+A synonym for
+.Ic PP .
+.It Ic ME
+End a mailto block started with
+.Ic MT .
+This is a non-standard GNU extension.
+.It Ic MT
+Begin a mailto block.
+This is a non-standard GNU extension.
+It has the following syntax:
+.Bd -unfilled -offset indent
+.Pf . Ic MT Ar address
+link description to be shown
+.Pf . Ic ME
.Ed
+.It Ic OP
+Optional command-line argument.
+This is a non-standard GNU extension.
+It has the following syntax:
+.Pp
+.D1 Pf . Ic OP Ar key Op Ar value
.Pp
The
-.Dq body
-consists of zero or more arguments to the macro.
+.Ar key
+is usually a command-line flag and
+.Ar value
+its argument.
+.It Ic P
+A synonym for
+.Ic PP .
+.It Ic PD
+Specify the vertical space to be inserted before each new paragraph.
+.br
+The syntax is as follows:
.Pp
-.Nm
-has a primitive notion of multi-line scope for the following macros:
-.Sq \&.TM ,
-.Sq \&.SM ,
-.Sq \&.SB ,
-.Sq \&.BI ,
-.Sq \&.IB ,
-.Sq \&.BR ,
-.Sq \&.RB ,
-.Sq \&.R ,
-.Sq \&.B ,
-.Sq \&.I ,
-.Sq \&.IR
+.D1 Pf . Ic PD Op Ar height
+.Pp
+The
+.Ar height
+argument is a
+.Xr roff 7
+scaling width.
+It defaults to
+.Cm 1v .
+If the unit is omitted,
+.Cm v
+is assumed.
+.Pp
+This macro affects the spacing before any subsequent instances of
+.Ic HP ,
+.Ic IP ,
+.Ic LP ,
+.Ic P ,
+.Ic PP ,
+.Ic SH ,
+.Ic SS ,
+.Ic SY ,
and
-.Sq \&.RI .
-When these macros are invoked without arguments, the subsequent line is
-considered a continuation of the macro. Thus:
-.Bd -literal -offset indent
-\&.RI
-foo
+.Ic TP .
+.It Ic PP
+Begin an undecorated paragraph.
+The scope of a paragraph is closed by a subsequent paragraph,
+sub-section, section, or end of file.
+The saved paragraph left-margin width is reset to the default.
+.It Ic RB
+Text is rendered alternately in roman (the default font) and bold face.
+Whitespace between arguments is omitted in output.
+See also
+.Ic BI .
+.It Ic RE
+Explicitly close out the scope of a prior
+.Ic RS .
+The default left margin is restored to the state before that
+.Ic RS
+invocation.
+.Pp
+The syntax is as follows:
+.Pp
+.D1 Pf . Ic RE Op Ar level
+.Pp
+Without an argument, the most recent
+.Ic RS
+block is closed out.
+If
+.Ar level
+is 1, all open
+.Ic RS
+blocks are closed out.
+Otherwise,
+.Ar level No \(mi 1
+nested
+.Ic RS
+blocks remain open.
+.It Ic RI
+Text is rendered alternately in roman (the default font) and italics.
+Whitespace between arguments is omitted in output.
+See also
+.Ic BI .
+.It Ic RS
+Temporarily reset the default left margin.
+This has the following syntax:
+.Pp
+.D1 Pf . Ic RS Op Ar width
+.Pp
+The
+.Ar width
+argument is a
+.Xr roff 7
+scaling width.
+If not specified, the saved or default width is used.
+.Pp
+See also
+.Ic RE .
+.It Ic SB
+Text is rendered in small size (one point smaller than the default font)
+bold face.
+.It Ic SH
+Begin a section.
+The scope of a section is only closed by another section or the end of
+file.
+The paragraph left-margin width is reset to the default.
+.It Ic SM
+Text is rendered in small size (one point smaller than the default
+font).
+.It Ic SS
+Begin a sub-section.
+The scope of a sub-section is closed by a subsequent sub-section,
+section, or end of file.
+The paragraph left-margin width is reset to the default.
+.It Ic SY
+Begin a synopsis block with the following syntax:
+.Bd -unfilled -offset indent
+.Pf . Ic SY Ar command
+.Ar arguments
+.Pf . Ic YS
+.Ed
+.Pp
+This is a non-standard GNU extension
+and very rarely used even in GNU manual pages.
+Formatting is similar to
+.Ic IP .
+.It Ic TH
+Set the name of the manual page for use in the page header
+and footer with the following syntax:
+.Pp
+.D1 Pf . Ic TH Ar name section date Op Ar source Op Ar volume
+.Pp
+Conventionally, the document
+.Ar name
+is given in all caps.
+The
+.Ar section
+is usually a single digit, in a few cases followed by a letter.
+The recommended
+.Ar date
+format is
+.Sy YYYY-MM-DD
+as specified in the ISO-8601 standard;
+if the argument does not conform, it is printed verbatim.
+If the
+.Ar date
+is empty or not specified, the current date is used.
+The optional
+.Ar source
+string specifies the organisation providing the utility.
+When unspecified,
+.Xr mandoc 1
+uses its
+.Fl Ios
+argument.
+The
+.Ar volume
+string replaces the default volume title of the
+.Ar section .
+.Pp
+Examples:
+.Pp
+.Dl \&.TH CVS 5 "1992-02-12" GNU
+.It Ic TP
+Begin a paragraph where the head, if exceeding the indentation width, is
+followed by a newline; if not, the body follows on the same line after
+advancing to the indentation width.
+Subsequent output lines are indented.
+The syntax is as follows:
+.Bd -unfilled -offset indent
+.Pf . Ic TP Op Ar width
+.Ar head No \e" one line
+.Ar body
.Ed
.Pp
-is equivalent to
-.Sq \&.RI foo .
-If two consecutive lines exhibit the latter behaviour,
-an error is raised. Thus, the following is not acceptable:
-.Bd -literal -offset indent
-\&.RI
-\&.I
-Hello, world.
+The
+.Ar width
+argument is a
+.Xr roff 7
+scaling width.
+If specified, it's saved for later paragraph left-margins; if
+unspecified, the saved or default width is used.
+.It Ic TQ
+Like
+.Ic TP ,
+except that no vertical spacing is inserted before the paragraph.
+This is a non-standard GNU extension
+and very rarely used even in GNU manual pages.
+.It Ic UC
+Sets the volume for the footer for compatibility with man pages from
+.Bx
+releases.
+The optional first argument specifies which release it is from.
+.It Ic UE
+End a uniform resource identifier block started with
+.Ic UR .
+This is a non-standard GNU extension.
+.It Ic UR
+Begin a uniform resource identifier block.
+This is a non-standard GNU extension.
+It has the following syntax:
+.Bd -unfilled -offset indent
+.Pf . Ic UR Ar uri
+link description to be shown
+.Pf . Ic UE
.Ed
+.It Ic YS
+End a synopsis block started with
+.Ic SY .
+This is a non-standard GNU extension.
+.It Ic in
+Indent relative to the current indentation:
+.Pp
+.D1 Pf . Ic in Op Ar width
.Pp
+If
+.Ar width
+is signed, the new offset is relative.
+Otherwise, it is absolute.
+This value is reset upon the next paragraph, section, or sub-section.
+.El
+.Sh MACRO SYNTAX
The
-.Sq \&.TP
-macro is similar, but does not need an empty argument line to trigger
-the behaviour.
-.\" PARAGRAPH
-.Sh MACROS
-This section contains a complete list of all
.Nm
-macros and corresponding number of arguments.
-.Pp
-.Bl -column "MacroX" "Arguments" -compact -offset indent
-.It Em Macro Ta Em Arguments
-.It \&.TH Ta >1, <6
-.It \&.SH Ta >0
-.It \&.SS Ta >0
-.It \&.TP Ta n
-.It \&.LP Ta 0
-.It \&.PP Ta 0
-.It \&.P Ta 0
-.It \&.IP Ta <3
-.It \&.HP Ta <2
-.It \&.SM Ta n
-.It \&.SB Ta n
-.It \&.BI Ta n
-.It \&.IB Ta n
-.It \&.BR Ta n
-.It \&.RB Ta n
-.It \&.R Ta n
-.It \&.B Ta n
-.It \&.I Ta n
-.It \&.IR Ta n
-.It \&.RI Ta n
+macros are classified by scope: line scope or block scope.
+Line macros are only scoped to the current line (and, in some
+situations, the subsequent line).
+Block macros are scoped to the current line and subsequent lines until
+closed by another block macro.
+.Ss Line Macros
+Line macros are generally scoped to the current line, with the body
+consisting of zero or more arguments.
+If a macro is scoped to the next line and the line arguments are empty,
+the next line, which must be text, is used instead.
+Thus:
+.Bd -literal -offset indent
+\&.I
+foo
+.Ed
+.Pp
+is equivalent to
+.Sq .I foo .
+If next-line macros are invoked consecutively, only the last is used.
+If a next-line macro is followed by a non-next-line macro, an error is
+raised.
+.Pp
+The syntax is as follows:
+.Bd -literal -offset indent
+\&.YO \(lBbody...\(rB
+\(lBbody...\(rB
+.Ed
+.Bl -column "MacroX" "ArgumentsX" "ScopeXXXXX" "CompatX" -offset indent
+.It Em Macro Ta Em Arguments Ta Em Scope Ta Em Notes
+.It Ic AT Ta <=1 Ta current Ta \&
+.It Ic B Ta n Ta next-line Ta \&
+.It Ic BI Ta n Ta current Ta \&
+.It Ic BR Ta n Ta current Ta \&
+.It Ic DT Ta 0 Ta current Ta \&
+.It Ic EE Ta 0 Ta current Ta GNU
+.It Ic EX Ta 0 Ta current Ta GNU
+.It Ic I Ta n Ta next-line Ta \&
+.It Ic IB Ta n Ta current Ta \&
+.It Ic IR Ta n Ta current Ta \&
+.It Ic OP Ta >=1 Ta current Ta GNU
+.It Ic PD Ta 1 Ta current Ta \&
+.It Ic RB Ta n Ta current Ta \&
+.It Ic RI Ta n Ta current Ta \&
+.It Ic SB Ta n Ta next-line Ta \&
+.It Ic SM Ta n Ta next-line Ta \&
+.It Ic TH Ta >1, <6 Ta current Ta \&
+.It Ic UC Ta <=1 Ta current Ta \&
+.It Ic in Ta 1 Ta current Ta Xr roff 7
+.El
+.Ss Block Macros
+Block macros comprise a head and body.
+As with in-line macros, the head is scoped to the current line and, in
+one circumstance, the next line (the next-line stipulations as in
+.Sx Line Macros
+apply here as well).
+.Pp
+The syntax is as follows:
+.Bd -literal -offset indent
+\&.YO \(lBhead...\(rB
+\(lBhead...\(rB
+\(lBbody...\(rB
+.Ed
+.Pp
+The closure of body scope may be to the section, where a macro is closed
+by
+.Ic SH ;
+sub-section, closed by a section or
+.Ic SS ;
+or paragraph, closed by a section, sub-section,
+.Ic HP ,
+.Ic IP ,
+.Ic LP ,
+.Ic P ,
+.Ic PP ,
+.Ic RE ,
+.Ic SY ,
+or
+.Ic TP .
+No closure refers to an explicit block closing macro.
+.Pp
+As a rule, block macros may not be nested; thus, calling a block macro
+while another block macro scope is open, and the open scope is not
+implicitly closed, is syntactically incorrect.
+.Bl -column "MacroX" "ArgumentsX" "Head ScopeX" "sub-sectionX" "compatX" -offset indent
+.It Em Macro Ta Em Arguments Ta Em Head Scope Ta Em Body Scope Ta Em Notes
+.It Ic HP Ta <2 Ta current Ta paragraph Ta \&
+.It Ic IP Ta <3 Ta current Ta paragraph Ta \&
+.It Ic LP Ta 0 Ta current Ta paragraph Ta \&
+.It Ic ME Ta 0 Ta none Ta none Ta GNU
+.It Ic MT Ta 1 Ta current Ta to \&ME Ta GNU
+.It Ic P Ta 0 Ta current Ta paragraph Ta \&
+.It Ic PP Ta 0 Ta current Ta paragraph Ta \&
+.It Ic RE Ta <=1 Ta current Ta none Ta \&
+.It Ic RS Ta 1 Ta current Ta to \&RE Ta \&
+.It Ic SH Ta >0 Ta next-line Ta section Ta \&
+.It Ic SS Ta >0 Ta next-line Ta sub-section Ta \&
+.It Ic SY Ta 1 Ta current Ta to \&YS Ta GNU
+.It Ic TP Ta n Ta next-line Ta paragraph Ta \&
+.It Ic TQ Ta n Ta next-line Ta paragraph Ta GNU
+.It Ic UE Ta 0 Ta current Ta none Ta GNU
+.It Ic UR Ta 1 Ta current Ta part Ta GNU
+.It Ic YS Ta 0 Ta none Ta none Ta GNU
.El
-.\" SECTION
+.Pp
+If a block macro is next-line scoped, it may only be followed by in-line
+macros for decorating text.
+.Ss Font handling
+In
+.Nm
+documents, both
+.Sx Physical markup
+macros and
+.Xr roff 7
+.Ql \ef
+font escape sequences can be used to choose fonts.
+In text lines, the effect of manual font selection by escape sequences
+only lasts until the next macro invocation; in macro lines, it only lasts
+until the end of the macro scope.
+Note that macros like
+.Ic BR
+open and close a font scope for each argument.
.Sh SEE ALSO
+.Xr man 1 ,
.Xr mandoc 1 ,
-.Xr mandoc_char 7
-.\" SECTION
-.Sh AUTHORS
+.Xr eqn 7 ,
+.Xr mandoc_char 7 ,
+.Xr mdoc 7 ,
+.Xr roff 7 ,
+.Xr tbl 7
+.Sh HISTORY
The
.Nm
-utility was written by
-.An Kristaps Dzonsons Aq kristaps@openbsd.org .
-.\" SECTION
-.Sh CAVEATS
-Do not use this language. Use
-.Xr mdoc 7 ,
-instead.
+language first appeared as a macro package for the roff typesetting
+system in
+.At v7 .
+It was later rewritten by James Clark as a macro package for groff.
+Eric S. Raymond wrote the extended
+.Nm
+macros for groff in 2007.
+The stand-alone implementation that is part of the
+.Xr mandoc 1
+utility written by Kristaps Dzonsons appeared in
+.Ox 4.6 .
+.Sh AUTHORS
+This
+.Nm
+reference was written by
+.An Kristaps Dzonsons Aq Mt kristaps@bsd.lv .
git.ckatri.com / mandoc.git / blobdiff