version 1.234, 2018/12/24 23:37:22 |
version 1.250, 2021/06/27 17:57:54 |
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.\" $Id$ |
.\" $OpenBSD$ |
.\" |
.\" |
|
.\" Copyright (c) 2012, 2014-2021 Ingo Schwarze <schwarze@openbsd.org> |
.\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
.\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
.\" Copyright (c) 2012, 2014-2018 Ingo Schwarze <schwarze@openbsd.org> |
|
.\" |
.\" |
.\" Permission to use, copy, modify, and distribute this software for any |
.\" Permission to use, copy, modify, and distribute this software for any |
.\" purpose with or without fee is hereby granted, provided that the above |
.\" purpose with or without fee is hereby granted, provided that the above |
Line 52 The options are as follows: |
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Line 52 The options are as follows: |
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If the standard output is a terminal device and |
If the standard output is a terminal device and |
.Fl c |
.Fl c |
is not specified, use |
is not specified, use |
.Xr more 1 |
.Xr less 1 |
to paginate the output, just like |
to paginate the output, just like |
.Xr man 1 |
.Xr man 1 |
would. |
would. |
.It Fl c |
.It Fl c |
Copy the formatted manual pages to the standard output without using |
Copy the formatted manual pages to the standard output without using |
.Xr more 1 |
.Xr less 1 |
to paginate them. |
to paginate them. |
This is the default. |
This is the default. |
It can be specified to override |
It can be specified to override |
Line 222 reads from standard input. |
|
Line 222 reads from standard input. |
|
.Pp |
.Pp |
The options |
The options |
.Fl fhklw |
.Fl fhklw |
are also supported and are documented in man(1). |
are also supported and are documented in |
|
.Xr man 1 . |
In |
In |
.Fl f |
.Fl f |
and |
and |
|
|
is the back-space character number 8. |
is the back-space character number 8. |
Emboldened characters are rendered as |
Emboldened characters are rendered as |
.Sq c Ns \e[bs] Ns c . |
.Sq c Ns \e[bs] Ns c . |
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This markup is typically converted to appropriate terminal sequences by |
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the pager or |
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.Xr ul 1 . |
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To remove the markup, pipe the output to |
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.Xr col 1 |
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.Fl b |
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instead. |
.Pp |
.Pp |
The special characters documented in |
The special characters documented in |
.Xr mandoc_char 7 |
.Xr mandoc_char 7 |
are rendered best-effort in an ASCII equivalent. |
are rendered best-effort in an ASCII equivalent. |
|
In particular, opening and closing |
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.Sq single quotes |
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are represented as characters number 0x60 and 0x27, respectively, |
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which agrees with all ASCII standards from 1965 to the latest |
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revision (2012) and which matches the traditional way in which |
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.Xr roff 7 |
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formatters represent single quotes in ASCII output. |
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This correct ASCII rendering may look strange with modern |
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Unicode-compatible fonts because contrary to ASCII, Unicode uses |
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the code point U+0060 for the grave accent only, never for an opening |
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quote. |
.Pp |
.Pp |
The following |
The following |
.Fl O |
.Fl O |
|
|
is specified, reuse the first command line argument that is not a |
is specified, reuse the first command line argument that is not a |
.Ar section |
.Ar section |
number. |
number. |
This is useful when it is the name of a manual page, |
If that argument is in |
in particular the name of a library function. |
.Xr apropos 1 |
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.Ar key Ns = Ns Ar val |
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format, only the |
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.Ar val |
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is used rather than the argument as a whole. |
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This is useful for commands like |
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.Ql man -akO tag Ic=ulimit |
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to search for a keyword and jump right to its definition |
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in the matching manual pages. |
.It Cm width Ns = Ns Ar width |
.It Cm width Ns = Ns Ar width |
The output width is set to |
The output width is set to |
.Ar width |
.Ar width |
|
|
is used for an external style-sheet. |
is used for an external style-sheet. |
This must be a valid absolute or |
This must be a valid absolute or |
relative URI. |
relative URI. |
|
.It Cm tag Ns Op = Ns Ar term |
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Same syntax and semantics as for |
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.Sx ASCII Output . |
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This is implemented by passing a |
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.Ic file:// |
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URI ending in a fragment identifier to the pager |
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rather than passing merely a file name. |
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When using this argument, use a pager supporting such URIs, for example |
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.Bd -literal -offset 3n |
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MANPAGER='lynx -force_html' man -T html -O tag=MANPAGER man |
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MANPAGER='w3m -T text/html' man -T html -O tag=toc mandoc |
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.Ed |
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.Pp |
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Consequently, for HTML output, this argument does not work with |
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.Xr more 1 |
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or |
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.Xr less 1 . |
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For example, |
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.Ql MANPAGER=less man -T html -O tag=toc mandoc |
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does not work because |
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.Xr less 1 |
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does not support |
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.Ic file:// |
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URIs. |
.It Cm toc |
.It Cm toc |
If an input file contains at least two non-standard sections, |
If an input file contains at least two non-standard sections, |
print a table of contents near the beginning of the output. |
print a table of contents near the beginning of the output. |
Line 416 This is useful for distributing manual sources to lega |
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Line 467 This is useful for distributing manual sources to lega |
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lacking |
lacking |
.Xr mdoc 7 |
.Xr mdoc 7 |
formatters. |
formatters. |
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Embedded |
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.Xr eqn 7 |
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and |
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.Xr tbl 7 |
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code is not supported. |
.Pp |
.Pp |
If the input format of a file is |
If the input format of a file is |
.Xr man 7 , |
.Xr man 7 , |
the input is copied to the output, expanding any |
the input is copied to the output. |
.Xr roff 7 |
|
.Ic so |
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requests. |
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The parser is also run, and as usual, the |
The parser is also run, and as usual, the |
.Fl W |
.Fl W |
level controls which |
level controls which |
Line 601 It never affects the interpretation of input files. |
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Line 654 It never affects the interpretation of input files. |
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Any non-empty value of the environment variable |
Any non-empty value of the environment variable |
.Ev MANPAGER |
.Ev MANPAGER |
is used instead of the standard pagination program, |
is used instead of the standard pagination program, |
.Xr more 1 ; |
.Xr less 1 ; |
see |
see |
.Xr man 1 |
.Xr man 1 |
for details. |
for details. |
Line 615 Specifies the pagination program to use when |
|
Line 668 Specifies the pagination program to use when |
|
.Ev MANPAGER |
.Ev MANPAGER |
is not defined. |
is not defined. |
If neither PAGER nor MANPAGER is defined, |
If neither PAGER nor MANPAGER is defined, |
.Xr more 1 |
.Xr less 1 |
.Fl s |
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is used. |
is used. |
Only used if |
Only used if |
.Fl a |
.Fl a |
Line 671 No input files have been read. |
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Line 723 No input files have been read. |
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.It 6 |
.It 6 |
An operating system error occurred, for example exhaustion |
An operating system error occurred, for example exhaustion |
of memory, file descriptors, or process table entries. |
of memory, file descriptors, or process table entries. |
Such errors cause |
Such errors may cause |
.Nm |
.Nm |
to exit at once, possibly in the middle of parsing or formatting a file. |
to exit at once, possibly in the middle of parsing or formatting a file. |
.El |
.El |
|
|
.Pp |
.Pp |
Message levels have the following meanings: |
Message levels have the following meanings: |
.Bl -tag -width "warning" |
.Bl -tag -width "warning" |
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.It Cm syserr |
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An operating system error occurred. |
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There isn't necessarily anything wrong with the input files. |
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Output may all the same be missing or incomplete. |
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.It Cm badarg |
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Invalid command line arguments were specified. |
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No input files have been read and no output is produced. |
.It Cm unsupp |
.It Cm unsupp |
An input file uses unsupported low-level |
An input file uses unsupported low-level |
.Xr roff 7 |
.Xr roff 7 |
|
|
.Cm error , |
.Cm error , |
and |
and |
.Cm unsupp |
.Cm unsupp |
levels except those about non-existent or unreadable input files |
levels are hidden unless their level, or a lower level, is requested using a |
are hidden unless their level, or a lower level, is requested using a |
|
.Fl W |
.Fl W |
option or |
option or |
.Fl T Cm lint |
.Fl T Cm lint |
Line 864 generated by CVS |
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Line 922 generated by CVS |
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or |
or |
.Ic NetBSD |
.Ic NetBSD |
keyword substitution as conventionally used in these operating systems. |
keyword substitution as conventionally used in these operating systems. |
.It Sy "referenced manual not found" |
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.Pq mdoc |
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An |
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.Ic \&Xr |
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macro references a manual page that is not found in the base system. |
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The path to look for base system manuals is configurable at compile |
|
time and defaults to |
|
.Pa /usr/share/man : /usr/X11R6/man . |
|
.El |
.El |
.Ss Style suggestions |
.Ss Style suggestions |
.Bl -ohang |
.Bl -ohang |
Line 958 list contains two consecutive |
|
Line 1008 list contains two consecutive |
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entries describing the same |
entries describing the same |
.Ic \&Er |
.Ic \&Er |
number. |
number. |
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.It Sy "referenced manual not found" |
|
.Pq mdoc |
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An |
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.Ic \&Xr |
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macro references a manual page that was not found. |
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When running with |
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.Fl W Cm base , |
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the search is restricted to the base system, by default to |
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.Pa /usr/share/man : Ns Pa /usr/X11R6/man . |
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This path can be configured at compile time using the |
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.Dv MANPATH_BASE |
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preprocessor macro. |
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When running with |
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.Fl W Cm style , |
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the search is done along the full search path as described in the |
|
.Xr man 1 |
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manual page, respecting the |
|
.Fl m |
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and |
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.Fl M |
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command line options, the |
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.Ev MANPATH |
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environment variable, the |
|
.Xr man.conf 5 |
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file and falling back to the default of |
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.Pa /usr/share/man : Ns Pa /usr/X11R6/man : Ns Pa /usr/local/man , |
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also configurable at compile time using the |
|
.Dv MANPATH_DEFAULT |
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preprocessor macro. |
.It Sy "trailing delimiter" |
.It Sy "trailing delimiter" |
.Pq mdoc |
.Pq mdoc |
The last argument of an |
The last argument of an |
|
|
request occurs even though the document already switched to no-fill mode |
request occurs even though the document already switched to no-fill mode |
and did not switch back to fill mode yet. |
and did not switch back to fill mode yet. |
It has no effect. |
It has no effect. |
|
.It Sy "input text line longer than 80 bytes" |
|
Consider breaking the input text line |
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at one of the blank characters before column 80. |
.It Sy "verbatim \(dq--\(dq, maybe consider using \e(em" |
.It Sy "verbatim \(dq--\(dq, maybe consider using \e(em" |
.Pq mdoc |
.Pq mdoc |
Even though the ASCII output device renders an em-dash as |
Even though the ASCII output device renders an em-dash as |
Line 1040 macro lacks the mandatory section argument. |
|
Line 1122 macro lacks the mandatory section argument. |
|
The section number in a |
The section number in a |
.Ic \&Dt |
.Ic \&Dt |
line is invalid, but still used. |
line is invalid, but still used. |
.It Sy "missing date, using today's date" |
.It Sy "filename/section mismatch" |
|
.Pq mdoc , man |
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The name of the input file being processed is known and its file |
|
name extension starts with a non-zero digit, but the |
|
.Ic \&Dt |
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or |
|
.Ic \&TH |
|
macro contains a |
|
.Ar section |
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argument that starts with a different non-zero digit. |
|
The |
|
.Ar section |
|
argument is used as provided anyway. |
|
Consider checking whether the file name or the argument need a correction. |
|
.It Sy "missing date, using \(dq\(dq" |
.Pq mdoc, man |
.Pq mdoc, man |
The document was parsed as |
The document was parsed as |
.Xr mdoc 7 |
.Xr mdoc 7 |
Line 1673 The meaning of blank input lines is only well-defined |
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Line 1769 The meaning of blank input lines is only well-defined |
|
In fill mode, line breaks of text input lines are not supposed to be |
In fill mode, line breaks of text input lines are not supposed to be |
significant. |
significant. |
However, for compatibility with groff, blank lines in fill mode |
However, for compatibility with groff, blank lines in fill mode |
are replaced with |
are formatted like |
.Ic \&sp |
.Ic \&sp |
requests. |
requests. |
|
To request a paragraph break, use |
|
.Ic \&Pp |
|
instead of a blank line. |
.It Sy "tab in filled text" |
.It Sy "tab in filled text" |
.Pq mdoc , man |
.Pq mdoc , man |
The meaning of tab characters is only well-defined in non-fill mode: |
The meaning of tab characters is only well-defined in non-fill mode: |
Line 1775 The invalid character is discarded. |
|
Line 1874 The invalid character is discarded. |
|
A table layout specification contains an opening parenthesis, |
A table layout specification contains an opening parenthesis, |
but no matching closing parenthesis. |
but no matching closing parenthesis. |
The rest of the input line, starting from the parenthesis, has no effect. |
The rest of the input line, starting from the parenthesis, has no effect. |
|
.It Sy "ignoring excessive spacing in tbl layout" |
|
.Pq tbl |
|
A spacing modifier in a table layout is unreasonably large. |
|
The default spacing of 3n is used instead. |
.It Sy "tbl without any data cells" |
.It Sy "tbl without any data cells" |
.Pq tbl |
.Pq tbl |
A table does not contain any data cells. |
A table does not contain any data cells. |
|
|
macro or of an undefined macro. |
macro or of an undefined macro. |
The macro is ignored, and its arguments are handled |
The macro is ignored, and its arguments are handled |
as if they were a text line. |
as if they were a text line. |
|
.El |
|
.Ss Bad command line arguments |
|
.Bl -ohang |
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.It Sy "bad command line argument" |
|
The argument following one of the |
|
.Fl IKMmOTW |
|
command line options is invalid, or a |
|
.Ar file |
|
given as a command line argument cannot be opened. |
|
.It Sy "duplicate command line argument" |
|
The |
|
.Fl I |
|
command line option was specified twice. |
|
.It Sy "option has a superfluous value" |
|
An argument to the |
|
.Fl O |
|
option has a value but does not accept one. |
|
.It Sy "missing option value" |
|
An argument to the |
|
.Fl O |
|
option has no argument but requires one. |
|
.It Sy "bad option value" |
|
An argument to the |
|
.Fl O |
|
.Cm indent |
|
or |
|
.Cm width |
|
option has an invalid value. |
|
.It Sy "duplicate option value" |
|
The same |
|
.Fl O |
|
option is specified more than once. |
|
.It Sy "no such tag" |
|
The |
|
.Fl O Cm tag |
|
option was specified but the tag was not found in any of the displayed |
|
manual pages. |
.El |
.El |
.Sh SEE ALSO |
.Sh SEE ALSO |
.Xr apropos 1 , |
.Xr apropos 1 , |