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Annotation of mandoc/man.7, Revision 1.16

1.16    ! kristaps    1: .\"    $Id: man.7,v 1.15 2009/06/22 13:09:17 kristaps Exp $
1.1       kristaps    2: .\"
1.11      kristaps    3: .\" Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se>
1.1       kristaps    4: .\"
                      5: .\" Permission to use, copy, modify, and distribute this software for any
1.10      kristaps    6: .\" purpose with or without fee is hereby granted, provided that the above
                      7: .\" copyright notice and this permission notice appear in all copies.
                      8: .\"
                      9: .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     10: .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     11: .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     12: .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     13: .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     14: .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     15: .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1       kristaps   16: .\"
                     17: .Dd $Mdocdate$
1.9       kristaps   18: .Dt MAN 7
1.1       kristaps   19: .Os
                     20: .\" SECTION
                     21: .Sh NAME
                     22: .Nm man
                     23: .Nd man language reference
                     24: .\" SECTION
                     25: .Sh DESCRIPTION
                     26: The
                     27: .Nm man
                     28: language was historically used to format
                     29: .Ux
1.8       kristaps   30: manuals.  This reference document describes the syntax and structure of
                     31: this language.
1.1       kristaps   32: .Pp
1.8       kristaps   33: .Em \&Do not
1.1       kristaps   34: use
                     35: .Nm
                     36: to write your manuals.  Use the
                     37: .Xr mdoc 7
                     38: language, instead.
                     39: .\" PARAGRAPH
                     40: .Pp
                     41: An
                     42: .Nm
                     43: document follows simple rules:  lines beginning with the control
                     44: character
1.2       kristaps   45: .Sq \&.
1.1       kristaps   46: are parsed for macros.  Other lines are interpreted within the scope of
                     47: prior macros:
1.4       kristaps   48: .Bd -literal -offset indent
1.1       kristaps   49: \&.SH Macro lines change control state.
                     50: Other lines are interpreted within the current state.
                     51: .Ed
                     52: .\" SECTION
                     53: .Sh INPUT ENCODING
                     54: .Nm
1.14      kristaps   55: documents may contain only graphable 7-bit ASCII characters, the
1.1       kristaps   56: space character
1.14      kristaps   57: .Sq \  ,
                     58: and tabs
                     59: .Sq \et .
1.1       kristaps   60: All manuals must have
1.5       kristaps   61: .Ux
1.1       kristaps   62: .Sq \en
                     63: line termination.
                     64: .Pp
1.5       kristaps   65: Blank lines are acceptable; where found, the output will assert a
1.1       kristaps   66: vertical space.
1.4       kristaps   67: .Pp
                     68: The
                     69: .Sq \ec
                     70: escape is common in historical
                     71: .Nm
                     72: documents; if encountered at the end of a word, it ensures that the
                     73: subsequent word isn't off-set by whitespace.
1.1       kristaps   74: .\" SUB-SECTION
1.13      kristaps   75: .Ss Comments
                     76: Anything following a
                     77: .Sq \e"
                     78: delimiter is considered a comment (unless the
                     79: .Sq \e
                     80: itself has been escaped) and is ignored to the end of line.
                     81: Furthermore, a macro line with only a control character
                     82: .Sq \. ,
                     83: optionally followed by whitespace, is ignored.
                     84: .\" SUB-SECTION
1.1       kristaps   85: .Ss Special Characters
                     86: Special character sequences begin with the escape character
1.2       kristaps   87: .Sq \e
1.1       kristaps   88: followed by either an open-parenthesis
                     89: .Sq \&(
                     90: for two-character sequences; an open-bracket
                     91: .Sq \&[
                     92: for n-character sequences (terminated at a close-bracket
                     93: .Sq \&] ) ;
                     94: or a single one-character sequence.
                     95: .Pp
                     96: Characters may alternatively be escaped by a slash-asterisk,
1.2       kristaps   97: .Sq \e* ,
1.1       kristaps   98: with the same combinations as described above.  This form is deprecated.
                     99: .\" SECTION
1.16    ! kristaps  100: .Sh STRUCTURE
        !           101: Each
        !           102: .Nm
        !           103: document must contain contains at least the
        !           104: .Sq \&.TH
        !           105: macro describing the document's section and title.  It may occur
        !           106: anywhere in the document, although conventionally, it appears as the
        !           107: first macro.
        !           108: .Pp
        !           109: Beyond the
        !           110: .Sq \&.TH ,
        !           111: at least one macro or text node must appear in the document.
        !           112: .\" SECTION
1.15      kristaps  113: .Sh SYNTAX
1.2       kristaps  114: Macros are one to three three characters in length and begin with a
1.4       kristaps  115: control character ,
                    116: .Sq \&. ,
1.2       kristaps  117: at the beginning of the line.  An arbitrary amount of whitespace may
                    118: sit between the control character and the macro name.  Thus,
1.4       kristaps  119: .Sq \&.PP
1.2       kristaps  120: and
                    121: .Sq \&.\ \ \ \&PP
                    122: are equivalent.
                    123: .Pp
1.4       kristaps  124: All
                    125: .Nm
                    126: macros follow the same structural rules:
                    127: .Bd -literal -offset indent
                    128: \&.YO \(lBbody...\(rB
1.1       kristaps  129: .Ed
                    130: .Pp
                    131: The
                    132: .Dq body
                    133: consists of zero or more arguments to the macro.
1.4       kristaps  134: .Pp
                    135: .Nm
                    136: has a primitive notion of multi-line scope for the following macros:
                    137: .Sq \&.TM ,
                    138: .Sq \&.SM ,
                    139: .Sq \&.SB ,
                    140: .Sq \&.BI ,
                    141: .Sq \&.IB ,
                    142: .Sq \&.BR ,
                    143: .Sq \&.RB ,
                    144: .Sq \&.R ,
                    145: .Sq \&.B ,
                    146: .Sq \&.I ,
                    147: .Sq \&.IR
                    148: and
                    149: .Sq \&.RI .
                    150: When these macros are invoked without arguments, the subsequent line is
                    151: considered a continuation of the macro.  Thus:
                    152: .Bd -literal -offset indent
                    153: \&.RI
                    154: foo
                    155: .Ed
                    156: .Pp
1.5       kristaps  157: is equivalent to
1.8       kristaps  158: .Sq \&.RI foo .
1.5       kristaps  159: If two consecutive lines exhibit the latter behaviour,
                    160: an error is raised.  Thus, the following is not acceptable:
1.4       kristaps  161: .Bd -literal -offset indent
                    162: \&.RI
                    163: \&.I
                    164: Hello, world.
                    165: .Ed
                    166: .Pp
                    167: The
                    168: .Sq \&.TP
1.5       kristaps  169: macro is similar, but does not need an empty argument line to trigger
                    170: the behaviour.
1.15      kristaps  171: .\" SECTION
1.1       kristaps  172: .Sh MACROS
                    173: This section contains a complete list of all
                    174: .Nm
1.5       kristaps  175: macros and corresponding number of arguments.
1.1       kristaps  176: .Pp
1.4       kristaps  177: .Bl -column "MacroX" "Arguments" -compact -offset indent
1.1       kristaps  178: .It Em Macro Ta Em Arguments
1.4       kristaps  179: .It \&.TH    Ta    >1, <6
                    180: .It \&.SH    Ta    >0
                    181: .It \&.SS    Ta    >0
1.1       kristaps  182: .It \&.TP    Ta    n
1.4       kristaps  183: .It \&.LP    Ta    0
                    184: .It \&.PP    Ta    0
                    185: .It \&.P     Ta    0
                    186: .It \&.IP    Ta    <3
                    187: .It \&.HP    Ta    <2
1.1       kristaps  188: .It \&.SM    Ta    n
                    189: .It \&.SB    Ta    n
                    190: .It \&.BI    Ta    n
                    191: .It \&.IB    Ta    n
                    192: .It \&.BR    Ta    n
                    193: .It \&.RB    Ta    n
                    194: .It \&.R     Ta    n
                    195: .It \&.B     Ta    n
                    196: .It \&.I     Ta    n
                    197: .It \&.IR    Ta    n
1.3       kristaps  198: .It \&.RI    Ta    n
1.1       kristaps  199: .El
1.7       kristaps  200: .Pp
                    201: Although not historically part of the
                    202: .Nm
                    203: system, the following macros are also supported:
                    204: .Pp
                    205: .Bl -column "MacroX" "Arguments" -compact -offset indent
                    206: .It Em Macro Ta Em Arguments
                    207: .It \&.br    Ta    0
1.8       kristaps  208: .It \&.i     Ta    n
1.7       kristaps  209: .El
1.8       kristaps  210: .Pp
                    211: These follow the same calling conventions as the above
                    212: .Nm
                    213: macros.
1.1       kristaps  214: .\" SECTION
                    215: .Sh SEE ALSO
1.6       kristaps  216: .Xr mandoc 1 ,
                    217: .Xr mandoc_char 7
1.1       kristaps  218: .\" SECTION
                    219: .Sh AUTHORS
                    220: The
                    221: .Nm
                    222: utility was written by
1.12      kristaps  223: .An Kristaps Dzonsons Aq kristaps@kth.se .
1.1       kristaps  224: .\" SECTION
                    225: .Sh CAVEATS
                    226: Do not use this language.  Use
                    227: .Xr mdoc 7 ,
                    228: instead.

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