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Annotation of mandoc/mandoc.1, Revision 1.51

1.51    ! kristaps    1: .\"    $Id: mandoc.1,v 1.50 2010/01/29 14:39:38 kristaps Exp $
1.1       kristaps    2: .\"
1.17      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
1.16      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.
1.1       kristaps    8: .\"
1.16      kristaps    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: .\"
1.51    ! kristaps   17: .Dd $Mdocdate: January 29 2010 $
1.14      kristaps   18: .Dt MANDOC 1
1.1       kristaps   19: .Os
1.32      kristaps   20: .
                     21: .
1.1       kristaps   22: .Sh NAME
                     23: .Nm mandoc
1.8       kristaps   24: .Nd format and display UNIX manuals
1.32      kristaps   25: .
                     26: .
1.1       kristaps   27: .Sh SYNOPSIS
                     28: .Nm mandoc
                     29: .Op Fl f Ns Ar option...
1.8       kristaps   30: .Op Fl m Ns Ar format
1.44      kristaps   31: .Op Fl O Ns Ar option...
1.37      kristaps   32: .Op Fl T Ns Ar output
                     33: .Op Fl V
1.1       kristaps   34: .Op Fl W Ns Ar err...
                     35: .Op Ar infile...
1.32      kristaps   36: .
                     37: .
1.1       kristaps   38: .Sh DESCRIPTION
                     39: The
                     40: .Nm
1.26      kristaps   41: utility formats
1.8       kristaps   42: .Ux
                     43: manual pages for display.  The arguments are as follows:
1.32      kristaps   44: .
1.19      kristaps   45: .Bl -tag -width Ds
1.1       kristaps   46: .It Fl f Ns Ar option...
1.37      kristaps   47: Comma-separated compiler options.  See
1.1       kristaps   48: .Sx Compiler Options
                     49: for details.
1.32      kristaps   50: .
1.19      kristaps   51: .It Fl m Ns Ar format
1.8       kristaps   52: Input format.  See
                     53: .Sx Input Formats
                     54: for available formats.  Defaults to
1.12      kristaps   55: .Fl m Ns Ar andoc .
1.32      kristaps   56: .
1.44      kristaps   57: .It Fl O Ns Ar option...
1.37      kristaps   58: Comma-separated output options.  See
                     59: .Sx Output Options
                     60: for details.
                     61: .
1.19      kristaps   62: .It Fl T Ns Ar output
1.1       kristaps   63: Output format.  See
                     64: .Sx Output Formats
                     65: for available formats.  Defaults to
                     66: .Fl T Ns Ar ascii .
1.32      kristaps   67: .
1.1       kristaps   68: .It Fl V
                     69: Print version and exit.
1.32      kristaps   70: .
1.1       kristaps   71: .It Fl W Ns Ar err...
1.37      kristaps   72: Comma-separated warning options.  Use
1.1       kristaps   73: .Fl W Ns Ar all
1.24      kristaps   74: to print warnings,
1.26      kristaps   75: .Fl W Ns Ar error
1.24      kristaps   76: for warnings to be considered errors and cause utility
1.26      kristaps   77: termination.  Multiple
1.1       kristaps   78: .Fl W
                     79: arguments may be comma-separated, such as
                     80: .Fl W Ns Ar error,all .
1.32      kristaps   81: .
1.1       kristaps   82: .It Ar infile...
                     83: Read input from zero or more
                     84: .Ar infile .
1.2       kristaps   85: If unspecified, reads from stdin.  If multiple files are specified,
                     86: .Nm
                     87: will halt with the first failed parse.
1.1       kristaps   88: .El
1.32      kristaps   89: .
1.1       kristaps   90: .Pp
1.26      kristaps   91: By default,
                     92: .Nm
                     93: reads
1.8       kristaps   94: .Xr mdoc 7
1.12      kristaps   95: or
                     96: .Xr man 7
1.8       kristaps   97: text from stdin, implying
1.12      kristaps   98: .Fl m Ns Ar andoc ,
1.48      kristaps   99: and produces
1.1       kristaps  100: .Fl T Ns Ar ascii
1.48      kristaps  101: output.
1.32      kristaps  102: .
1.1       kristaps  103: .Pp
                    104: .Ex -std mandoc
1.32      kristaps  105: .
                    106: .
1.8       kristaps  107: .Ss Input Formats
                    108: The
                    109: .Nm
                    110: utility accepts
                    111: .Xr mdoc 7
                    112: and
                    113: .Xr man 7
                    114: input with
1.10      kristaps  115: .Fl m Ns Ar doc
1.8       kristaps  116: and
1.10      kristaps  117: .Fl m Ns Ar an ,
1.8       kristaps  118: respectively.  The
                    119: .Xr mdoc 7
                    120: format is
                    121: .Em strongly
1.26      kristaps  122: recommended;
1.8       kristaps  123: .Xr man 7
                    124: should only be used for legacy manuals.
1.32      kristaps  125: .
1.11      kristaps  126: .Pp
1.12      kristaps  127: A third option,
                    128: .Fl m Ns Ar andoc ,
1.13      kristaps  129: which is also the default, determines encoding on-the-fly: if the first
1.26      kristaps  130: non-comment macro is
1.27      kristaps  131: .Sq \&Dd
1.13      kristaps  132: or
1.27      kristaps  133: .Sq \&Dt ,
1.26      kristaps  134: the
1.13      kristaps  135: .Xr mdoc 7
                    136: parser is used; otherwise, the
                    137: .Xr man 7
                    138: parser is used.
1.32      kristaps  139: .
1.13      kristaps  140: .Pp
                    141: If multiple
1.26      kristaps  142: files are specified with
                    143: .Fl m Ns Ar andoc ,
1.13      kristaps  144: each has its file-type determined this way.  If multiple files are
                    145: specified and
1.12      kristaps  146: .Fl m Ns Ar doc
                    147: or
                    148: .Fl m Ns Ar an
                    149: is specified, then this format is used exclusively.
1.32      kristaps  150: .
                    151: .
1.1       kristaps  152: .Ss Output Formats
                    153: The
                    154: .Nm
                    155: utility accepts the following
                    156: .Fl T
1.48      kristaps  157: arguments (see
                    158: .Sx OUTPUT ) :
1.32      kristaps  159: .
1.19      kristaps  160: .Bl -tag -width Ds
1.13      kristaps  161: .It Fl T Ns Ar ascii
1.1       kristaps  162: Produce 7-bit ASCII output, backspace-encoded for bold and underline
1.48      kristaps  163: styles.  This is the default.  See
                    164: .Sx ASCII Output .
1.32      kristaps  165: .
1.37      kristaps  166: .It Fl T Ns Ar html
1.48      kristaps  167: Produce strict HTML-4.01 output, with a sane default style.  See
                    168: .Sx HTML Output .
1.37      kristaps  169: .
1.50      kristaps  170: .It Fl T Ns Ar xhtml
                    171: Produce strict XHTML-1.0 output, with a sane default style.  See
                    172: .Sx XHTML Output .
                    173: .
1.13      kristaps  174: .It Fl T Ns Ar tree
1.1       kristaps  175: Produce an indented parse tree.
1.32      kristaps  176: .
1.13      kristaps  177: .It Fl T Ns Ar lint
1.1       kristaps  178: Parse only: produce no output.
                    179: .El
1.32      kristaps  180: .
1.13      kristaps  181: .Pp
                    182: If multiple input files are specified, these will be processed by the
                    183: corresponding filter in-order.
1.32      kristaps  184: .
                    185: .
1.1       kristaps  186: .Ss Compiler Options
1.35      kristaps  187: Default compiler behaviour may be overridden with the
1.1       kristaps  188: .Fl f
                    189: flag.
1.32      kristaps  190: .
1.19      kristaps  191: .Bl -tag -width Ds
1.1       kristaps  192: .It Fl f Ns Ar ign-scope
                    193: When rewinding the scope of a block macro, forces the compiler to ignore
                    194: scope violations.  This can seriously mangle the resulting tree.
1.8       kristaps  195: .Pq mdoc only
1.32      kristaps  196: .
1.45      kristaps  197: .It Fl f Ns Ar ign-escape
                    198: Ignore invalid escape sequences.
                    199: This is the default, but the option can be used to override an earlier
                    200: .Fl f Ns Ar strict .
                    201: .
1.21      kristaps  202: .It Fl f Ns Ar no-ign-escape
                    203: Don't ignore invalid escape sequences.
1.32      kristaps  204: .
1.12      kristaps  205: .It Fl f Ns Ar no-ign-macro
1.21      kristaps  206: Do not ignore unknown macros at the start of input lines.
1.32      kristaps  207: .
1.21      kristaps  208: .It Fl f Ns Ar no-ign-chars
                    209: Do not ignore disallowed characters.
1.32      kristaps  210: .
1.21      kristaps  211: .It Fl f Ns Ar strict
1.26      kristaps  212: Implies
1.21      kristaps  213: .Fl f Ns Ar no-ign-escape ,
1.26      kristaps  214: .Fl f Ns Ar no-ign-macro
1.21      kristaps  215: and
1.26      kristaps  216: .Fl f Ns Ar no-ign-chars .
1.32      kristaps  217: .
1.28      kristaps  218: .It Fl f Ns Ar ign-errors
                    219: Don't halt when encountering parse errors.  Useful with
                    220: .Fl T Ns Ar lint
                    221: over a large set of manuals passed on the command line.
1.1       kristaps  222: .El
1.32      kristaps  223: .
1.48      kristaps  224: .
1.37      kristaps  225: .Ss Output Options
                    226: For the time being, only
                    227: .Fl T Ns Ar html
1.48      kristaps  228: accepts output options:
1.37      kristaps  229: .Bl -tag -width Ds
1.44      kristaps  230: .It Fl O Ns Ar style=style.css
1.37      kristaps  231: The file
                    232: .Ar style.css
                    233: is used for an external style-sheet.  This must be a valid absolute or
                    234: relative URI.
1.44      kristaps  235: .It Fl O Ns Ar includes=fmt
1.40      kristaps  236: The string
                    237: .Ar fmt ,
1.49      kristaps  238: for example,
1.40      kristaps  239: .Ar ../src/%I.html ,
                    240: is used as a template for linked header files (usually via the
                    241: .Sq \&In
                    242: macro).  Instances of
1.43      kristaps  243: .Sq \&%I
1.40      kristaps  244: are replaced with the include filename.  The default is not to present a
                    245: hyperlink.
1.44      kristaps  246: .It Fl O Ns Ar man=fmt
1.39      kristaps  247: The string
                    248: .Ar fmt ,
1.49      kristaps  249: for example,
1.39      kristaps  250: .Ar ../html%S/%N.%S.html ,
                    251: is used as a template for linked manuals (usually via the
1.37      kristaps  252: .Sq \&Xr
1.40      kristaps  253: macro).  Instances of
1.43      kristaps  254: .Sq \&%N
1.40      kristaps  255: and
                    256: .Sq %S
                    257: are replaced with the linked manual's name and section, respectively.
                    258: If no section is included, section 1 is assumed.  The default is not to
                    259: present a hyperlink.
1.37      kristaps  260: .El
1.32      kristaps  261: .
1.48      kristaps  262: .
                    263: .Sh OUTPUT
                    264: This section documents output details of
                    265: .Nm .
                    266: In general, output conforms to the traditional manual style of a header,
1.49      kristaps  267: a body composed of sections and sub-sections, and a footer.
1.48      kristaps  268: .Pp
                    269: The text style of output characters (non-macro characters, punctuation,
                    270: and white-space) is dictated by context.
                    271: .Pp
                    272: White-space is generally stripped from input.  This can be changed with
                    273: character escapes (specified in
                    274: .Xr mandoc_char 7 )
                    275: or literal modes (specified in
                    276: .Xr mdoc 7
                    277: and
                    278: .Xr man 7 ) .
                    279: .Pp
                    280: If non-macro punctuation is set apart from words, such as in the phrase
                    281: .Dq to be \&, or not to be ,
                    282: it's processed by
                    283: .Nm ,
                    284: regardless of output format, according to the following rules:  opening
                    285: punctuation
                    286: .Po
                    287: .Sq \&( ,
                    288: .Sq \&[ ,
                    289: and
                    290: .Sq \&{
                    291: .Pc
                    292: is not followed by a space; closing punctuation
                    293: .Po
                    294: .Sq \&. ,
                    295: .Sq \&, ,
                    296: .Sq \&; ,
                    297: .Sq \&: ,
                    298: .Sq \&? ,
                    299: .Sq \&! ,
                    300: .Sq \&) ,
                    301: .Sq \&]
                    302: and
                    303: .Sq \&}
                    304: .Pc
                    305: is not preceded by white-space.
                    306: .
                    307: .Pp
                    308: If the input is
                    309: .Xr mdoc 7 ,
                    310: however, these rules are also applied to macro arguments when appropriate.
                    311: .
                    312: .
                    313: .Ss ASCII Output
1.49      kristaps  314: Output produced by
1.48      kristaps  315: .Fl T Ns Ar ascii ,
                    316: which is the default, is rendered in standard 7-bit ASCII documented in
                    317: .Xr ascii 7 .
                    318: .Pp
                    319: Font styles are applied by using back-spaced encoding such that an
                    320: underlined character
                    321: .Sq c
                    322: is rendered as
                    323: .Sq _ Ns \e[bs] Ns c ,
                    324: where
                    325: .Sq \e[bs]
                    326: is the back-space character number 8.  Emboldened characters are rendered as
                    327: .Sq c Ns \e[bs] Ns c .
                    328: .Pp
                    329: The special characters documented in
                    330: .Xr mandoc_char 7
                    331: are rendered best-effort in an ASCII equivalent.
                    332: .Pp
                    333: Output width is limited to 78 visible columns unless literal input lines
                    334: exceed this limit.
                    335: .
                    336: .
                    337: .Ss HTML Output
                    338: Output produced by
                    339: .Fl T Ns Ar html
1.50      kristaps  340: conforms to HTML-4.01 strict.
1.48      kristaps  341: .Pp
                    342: Font styles and page structure are applied using CSS2.  By default, no
                    343: font style is applied to any text, although CSS2 is hard-coded to format
                    344: the basic structure of output.
                    345: .Pp
                    346: The
                    347: .Pa example.style.css
                    348: file documents the range of styles applied to output and, if used, will
                    349: cause rendered documents to appear as they do in
                    350: .Fl T Ns Ar ascii .
                    351: .Pp
                    352: Special characters are rendered in decimal-encoded UTF-8.
                    353: .
                    354: .
1.50      kristaps  355: .Ss XHTML Output
                    356: Output produced by
                    357: .Fl T Ns Ar xhtml
                    358: conforms to XHTML-1.0 strict.
                    359: .Pp
                    360: See
                    361: .Sx HTML Output
                    362: for details; beyond generating XHTML tags instead of HTML tags, these
                    363: output modes are identical.
                    364: .
                    365: .
1.1       kristaps  366: .Sh EXAMPLES
1.13      kristaps  367: To page manuals to the terminal:
1.32      kristaps  368: .
1.1       kristaps  369: .Pp
1.21      kristaps  370: .D1 % mandoc \-Wall,error \-fstrict mandoc.1 2>&1 | less
1.13      kristaps  371: .D1 % mandoc mandoc.1 mdoc.3 mdoc.7 | less
1.32      kristaps  372: .
1.28      kristaps  373: .Pp
1.41      kristaps  374: To produce HTML manuals with
                    375: .Ar style.css
                    376: as the style-sheet:
1.38      kristaps  377: .Pp
1.48      kristaps  378: .D1 % mandoc \-Thtml -Ostyle=style.css mdoc.7 > mdoc.7.html
1.38      kristaps  379: .Pp
1.28      kristaps  380: To check over a large set of manuals:
1.32      kristaps  381: .
1.28      kristaps  382: .Pp
                    383: .Dl % mandoc \-Tlint \-fign-errors `find /usr/src -name \e*\e.[1-9]`
1.32      kristaps  384: .
                    385: .
1.20      kristaps  386: .Sh COMPATIBILITY
1.26      kristaps  387: This section summarises
1.20      kristaps  388: .Nm
1.26      kristaps  389: compatibility with
1.20      kristaps  390: .Xr groff 1 .
1.32      kristaps  391: Each input and output format is separately noted.
                    392: .
                    393: .
1.48      kristaps  394: .Ss ASCII Compatibility
1.37      kristaps  395: .Bl -bullet -compact
1.29      kristaps  396: .It
1.49      kristaps  397: The
1.29      kristaps  398: .Sq \e~
1.49      kristaps  399: special character doesn't produce expected behaviour in
1.32      kristaps  400: .Fl T Ns Ar ascii .
                    401: .
                    402: .It
1.49      kristaps  403: The
1.33      kristaps  404: .Sq \&Bd \-literal
1.49      kristaps  405: and
1.32      kristaps  406: .Sq \&Bd \-unfilled
                    407: macros of
                    408: .Xr mdoc 7
                    409: in
                    410: .Fl T Ns Ar ascii
                    411: are synonyms, as are \-filled and \-ragged.
                    412: .
1.26      kristaps  413: .It
1.49      kristaps  414: In
1.27      kristaps  415: .Xr groff 1 ,
                    416: the
                    417: .Sq \&Pa
1.32      kristaps  418: .Xr mdoc 7
                    419: macro does not underline when scoped under an
1.30      kristaps  420: .Sq \&It
                    421: in the FILES section.  This behaves correctly in
1.27      kristaps  422: .Nm .
1.32      kristaps  423: .
1.27      kristaps  424: .It
1.20      kristaps  425: A list or display following
1.27      kristaps  426: .Sq \&Ss
1.32      kristaps  427: .Xr mdoc 7
                    428: macro in
                    429: .Fl T Ns Ar ascii
1.20      kristaps  430: does not assert a prior vertical break, just as it doesn't with
1.27      kristaps  431: .Sq \&Sh .
1.32      kristaps  432: .
1.20      kristaps  433: .It
1.32      kristaps  434: The
                    435: .Sq \&na
                    436: .Xr man 7
1.34      kristaps  437: macro in
1.32      kristaps  438: .Fl T Ns Ar ascii
1.34      kristaps  439: has no effect.
1.32      kristaps  440: .
1.20      kristaps  441: .It
                    442: Words aren't hyphenated.
1.32      kristaps  443: .
1.22      kristaps  444: .It
                    445: In normal mode (not a literal block), blocks of spaces aren't preserved,
1.32      kristaps  446: so double spaces following sentence closure are reduced to a single space;
                    447: .Xr groff 1
                    448: retains spaces.
                    449: .
                    450: .It
                    451: Sentences are unilaterally monospaced.
1.20      kristaps  452: .El
1.42      kristaps  453: .
1.48      kristaps  454: .
1.50      kristaps  455: .Ss HTML/XHTML Compatibility
1.42      kristaps  456: .Bl -bullet -compact
                    457: .It
                    458: The
1.47      kristaps  459: .Sq \efP
                    460: escape will revert the font to the previous
                    461: .Sq \ef
                    462: escape, not to the last rendered decoration, which is now dictated by
                    463: CSS instead of hard-coded.  It also will not span past the current
1.49      kristaps  464: scope, for the same reason.  Note that in
1.47      kristaps  465: .Sx ASCII Output
                    466: mode, this will work fine.
                    467: .It
                    468: The
1.42      kristaps  469: .Xr mdoc 7
                    470: .Sq \&Bl \-hang
                    471: and
                    472: .Sq \&Bl \-tag
                    473: list types render similarly (no break following overreached left-hand
                    474: side) due to the expressive constraints of HTML.
                    475: .
                    476: .It
                    477: The
                    478: .Xr man 7
                    479: .Sq IP
                    480: and
                    481: .Sq TP
                    482: lists render similarly.
                    483: .El
1.48      kristaps  484: .
                    485: .
1.1       kristaps  486: .Sh SEE ALSO
1.13      kristaps  487: .Xr mandoc_char 7 ,
1.9       kristaps  488: .Xr mdoc 7 ,
                    489: .Xr man 7
1.39      kristaps  490: .
1.1       kristaps  491: .Sh AUTHORS
                    492: The
                    493: .Nm
1.26      kristaps  494: utility was written by
1.18      kristaps  495: .An Kristaps Dzonsons Aq kristaps@kth.se .
1.39      kristaps  496: .
1.48      kristaps  497: .
1.39      kristaps  498: .Sh CAVEATS
1.48      kristaps  499: The
                    500: .Fl T Ns Ar html
1.50      kristaps  501: and
                    502: .Fl T Ns Ar xhtml
1.48      kristaps  503: CSS2 styling used for
                    504: .Fl m Ns Ar doc
1.51    ! kristaps  505: input lists does not render properly in older browsers, such as Internet
        !           506: Explorer 6 and earlier.
1.48      kristaps  507: .Pp
1.39      kristaps  508: In
1.50      kristaps  509: .Fl T Ns Ar html
                    510: and
                    511: .Fl T Ns Ar xhtml ,
1.39      kristaps  512: the maximum size of an element attribute is determined by
                    513: .Dv BUFSIZ ,
                    514: which is usually 1024 bytes.  Be aware of this when setting long link
1.48      kristaps  515: formats, e.g.,
                    516: .Fl O Ns Ar style=really/long/link .
1.46      kristaps  517: .Pp
                    518: The
                    519: .Fl T Ns Ar html
1.50      kristaps  520: and
                    521: .Fl T Ns Ar xhtml
                    522: output modes don't render the
1.46      kristaps  523: .Sq \es
1.47      kristaps  524: font size escape documented in
1.46      kristaps  525: .Xr mdoc 7
                    526: and
                    527: .Xr man 7 .
1.51    ! kristaps  528: .Pp
        !           529: Nesting elements within next-line element scopes of
        !           530: .Fl m Ar Ns an ,
        !           531: such as
        !           532: .Sq br
        !           533: within an empty
        !           534: .Sq B ,
        !           535: will confuse
        !           536: .Fl T Ns Ar html
        !           537: and
        !           538: .Fl T Ns Ar xhtml
        !           539: and cause it to forget the formatting.

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