-.\" $Id: mandoc.1,v 1.152 2015/02/07 15:15:20 schwarze Exp $
+.\" $Id: mandoc.1,v 1.164 2015/11/05 17:47:51 schwarze Exp $
.\"
.\" Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
.\" Copyright (c) 2012, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
-.Dd $Mdocdate: February 7 2015 $
+.Dd $Mdocdate: November 5 2015 $
.Dt MANDOC 1
.Os
.Sh NAME
.Nd format and display UNIX manuals
.Sh SYNOPSIS
.Nm mandoc
-.Op Fl acfhklV
-.Sm off
-.Op Fl I Cm os Li = Ar name
-.Sm on
-.Op Fl K Ns Ar encoding
+.Op Fl acfhkl
+.Op Fl I Cm os Ns = Ns Ar name
+.Op Fl K Ar encoding
.Op Fl m Ns Ar format
-.Op Fl O Ns Ar option
-.Op Fl T Ns Ar output
-.Op Fl W Ns Ar level
+.Op Fl O Ar option
+.Op Fl T Ar output
+.Op Fl W Ar level
.Op Ar
.Sh DESCRIPTION
The
text from stdin, implying
.Fl m Ns Cm andoc ,
and produces
-.Fl T Ns Cm locale
+.Fl T Cm locale
output.
.Pp
The options are as follows:
and
.Fl l
options.
-.Sm off
-.It Fl I Cm os Li = Ar name
-.Sm on
+.It Fl I Cm os Ns = Ns Ar name
Override the default operating system
.Ar name
for the
Display only the SYNOPSIS lines.
Implies
.Fl c .
-.It Fl K Ns Ar encoding
+.It Fl K Ar encoding
Specify the input encoding.
The supported
.Ar encoding
for available formats.
Defaults to
.Fl m Ns Cm andoc .
-.It Fl O Ns Ar option
+.It Fl O Ar option
Comma-separated output options.
-.It Fl T Ns Ar output
+.It Fl T Ar output
Output format.
See
.Sx Output Formats
for available formats.
Defaults to
-.Fl T Ns Cm locale .
-.It Fl V
-Print version and exit.
-.It Fl W Ns Ar level
+.Fl T Cm locale .
+.It Fl W Ar level
Specify the minimum message
.Ar level
to be reported on the standard error output and to affect the exit status.
for details.
.Pp
The special option
-.Fl W Ns Cm stop
+.Fl W Cm stop
tells
.Nm
to exit after parsing a file that causes warnings or errors of at least
and
.Cm stop
are requested, they can be joined with a comma, for example
-.Fl W Ns Cm error , Ns Cm stop .
+.Fl W Cm error , Ns Cm stop .
.It Ar file
Read input from zero or more files.
If unspecified, reads from stdin.
utility accepts the following
.Fl T
arguments, which correspond to output modes:
-.Bl -tag -width "-Tlocale"
-.It Fl T Ns Cm ascii
+.Bl -tag -width "-T locale"
+.It Fl T Cm ascii
Produce 7-bit ASCII output.
See
.Sx ASCII Output .
-.It Fl T Ns Cm html
+.It Fl T Cm html
Produce HTML5, CSS1, and MathML output.
See
.Sx HTML Output .
-.It Fl T Ns Cm lint
+.It Fl T Cm lint
Parse only: produce no output.
Implies
-.Fl W Ns Cm warning .
-.It Fl T Ns Cm locale
+.Fl W Cm warning .
+.It Fl T Cm locale
Encode output using the current locale.
This is the default.
See
.Sx Locale Output .
-.It Fl T Ns Cm man
+.It Fl T Cm man
Produce
.Xr man 7
format output.
See
.Sx Man Output .
-.It Fl T Ns Cm pdf
+.It Fl T Cm pdf
Produce PDF output.
See
.Sx PDF Output .
-.It Fl T Ns Cm ps
+.It Fl T Cm ps
Produce PostScript output.
See
.Sx PostScript Output .
-.It Fl T Ns Cm tree
+.It Fl T Cm tree
Produce an indented parse tree.
-.It Fl T Ns Cm utf8
+See
+.Sx Syntax tree output .
+.It Fl T Cm utf8
Encode output in the UTF\-8 multi-byte format.
See
.Sx UTF\-8 Output .
-.It Fl T Ns Cm xhtml
+.It Fl T Cm xhtml
This is a synonym for
-.Fl T Ns Cm html .
+.Fl T Cm html .
.El
.Pp
If multiple input files are specified, these will be processed by the
corresponding filter in-order.
.Ss ASCII Output
Output produced by
-.Fl T Ns Cm ascii
+.Fl T Cm ascii
is rendered in standard 7-bit ASCII documented in
.Xr ascii 7 .
.Pp
.El
.Ss HTML Output
Output produced by
-.Fl T Ns Cm html
+.Fl T Cm html
conforms to HTML5 using optional self-closing tags.
Default styles use only CSS1.
Equations rendered from
blocks use MathML.
.Pp
The
-.Pa example.style.css
+.Pa mandoc.css
file documents style-sheet classes available for customising output.
If a style-sheet is not specified with
-.Fl O Ns Ar style ,
-.Fl T Ns Cm html
+.Fl O Cm style ,
+.Fl T Cm html
defaults to simple output (via an embedded style-sheet)
readable in any graphical or text-based web
browser.
.El
.Ss Locale Output
Locale-depending output encoding is triggered with
-.Fl T Ns Cm locale .
+.Fl T Cm locale .
This is the default.
.Pp
This option is not available on all systems: systems without locale
support, or those whose internal representation is not natively UCS-4,
will fall back to
-.Fl T Ns Cm ascii .
+.Fl T Cm ascii .
See
.Sx ASCII Output
for font style specification and available command-line arguments.
are displayed before copying the input to the output.
.Ss PDF Output
PDF-1.1 output may be generated by
-.Fl T Ns Cm pdf .
+.Fl T Cm pdf .
See
.Sx PostScript Output
for
PostScript
.Qq Adobe-3.0
Level-2 pages may be generated by
-.Fl T Ns Cm ps .
+.Fl T Cm ps .
Output pages default to letter sized and are rendered in the Times font
family, 11-point.
Margins are calculated as 1/9 the page length and width.
.El
.Ss UTF\-8 Output
Use
-.Fl T Ns Cm utf8
+.Fl T Cm utf8
to force a UTF\-8 locale.
See
.Sx Locale Output
for details and options.
+.Ss Syntax tree output
+Use
+.Fl T Cm tree
+to show a human readable representation of the syntax tree.
+It is useful for debugging the source code of manual pages.
+The exact format is subject to change, so don't write parsers for it.
+Each output line shows one syntax tree node.
+Child nodes are indented with respect to their parent node.
+The columns are:
+.Pp
+.Bl -enum -compact
+.It
+For macro nodes, the macro name; for text and
+.Xr tbl 7
+nodes, the content.
+There is a special format for
+.Xr eqn 7
+nodes.
+.It
+Node type (text, elem, block, head, body, body-end, tail, tbl, eqn).
+.It
+Flags:
+.Bl -dash -compact
+.It
+An opening parenthesis if the node is an opening delimiter.
+.It
+An asterisk if the node starts a new input line.
+.It
+The input line number (starting at one).
+.It
+A colon.
+.It
+The input column number (starting at one).
+.It
+A closing parenthesis if the node is a closing delimiter.
+.It
+A full stop if the node ends a sentence.
+.El
+.El
.Sh ENVIRONMENT
.Bl -tag -width MANPAGER
.It Ev MANPAGER
.Ev MANPAGER
is not defined.
If neither PAGER nor MANPAGER is defined,
-.Pa /usr/bin/more Fl s
+.Xr more 1
+.Fl s
will be used.
.El
.Sh EXIT STATUS
.Ar level .
.It 2
At least one warning occurred, but no error, and
-.Fl W Ns Cm warning
+.Fl W Cm warning
was specified.
.It 3
At least one parsing error occurred,
but no unsupported feature was encountered, and
-.Fl W Ns Cm error
+.Fl W Cm error
or
-.Fl W Ns Cm warning
+.Fl W Cm warning
was specified.
.It 4
At least one unsupported feature was encountered, and
-.Fl W Ns Cm unsupp ,
-.Fl W Ns Cm error
+.Fl W Cm unsupp ,
+.Fl W Cm error
or
-.Fl W Ns Cm warning
+.Fl W Cm warning
was specified.
.It 5
Invalid command line arguments were specified.
.El
.Pp
Note that selecting
-.Fl T Ns Cm lint
+.Fl T Cm lint
output mode implies
-.Fl W Ns Cm warning .
+.Fl W Cm warning .
.Sh EXAMPLES
To page manuals to the terminal:
.Pp
-.Dl $ mandoc \-Wall,stop mandoc.1 2\*(Gt&1 | less
+.Dl $ mandoc \-W all,stop mandoc.1 2\*(Gt&1 | less
.Dl $ mandoc mandoc.1 mdoc.3 mdoc.7 | less
.Pp
To produce HTML manuals with
-.Ar style.css
+.Pa mandoc.css
as the style-sheet:
.Pp
-.Dl $ mandoc \-Thtml -Ostyle=style.css mdoc.7 \*(Gt mdoc.7.html
+.Dl $ mandoc \-T html -O style=mandoc.css mdoc.7 \*(Gt mdoc.7.html
.Pp
To check over a large set of manuals:
.Pp
-.Dl $ mandoc \-Tlint `find /usr/src -name \e*\e.[1-9]`
+.Dl $ mandoc \-T lint \(gafind /usr/src -name \e*\e.[1-9]\(ga
.Pp
To produce a series of PostScript manuals for A4 paper:
.Pp
-.Dl $ mandoc \-Tps \-Opaper=a4 mdoc.7 man.7 \*(Gt manuals.ps
+.Dl $ mandoc \-T ps \-O paper=a4 mdoc.7 man.7 \*(Gt manuals.ps
.Pp
Convert a modern
.Xr mdoc 7
.Xr mdoc 7
parser:
.Pp
-.Dl $ mandoc \-Tman foo.mdoc \*(Gt foo.man
+.Dl $ mandoc \-T man foo.mdoc \*(Gt foo.man
.Sh DIAGNOSTICS
Messages displayed by
.Nm
are hidden unless their level, or a lower level, is requested using a
.Fl W
option or
-.Fl T Ns Cm lint
+.Fl T Cm lint
output mode.
.Ss Warnings related to the document prologue
.Bl -ohang
.Xr makewhatis 8
and
.Xr apropos 1 .
-.It Sy "bad NAME section contents"
+.It Sy "NAME section without name"
+.Pq mdoc
+The NAME section does not contain any
+.Ic \&Nm
+child macro.
+.It Sy "NAME section without description"
.Pq mdoc
-The last node in the NAME section is not an
+The NAME section lacks the mandatory
.Ic \&Nd
-macro, or any preceding macro is not
-.Ic \&Nm ,
-or the NAME section is completely empty.
-This may confuse
-.Xr makewhatis 8
+child macro.
+.It Sy "description not at the end of NAME"
+.Pq mdoc
+The NAME section does contain an
+.Ic \&Nd
+child macro, but other content follows it.
+.It Sy "bad NAME section content"
+.Pq mdoc
+The NAME section contains plain text or macros other than
+.Ic \&Nm
and
-.Xr apropos 1 .
+.Ic \&Nd .
.It Sy "missing description line, using \(dq\(dq"
.Pq mdoc
The
macro with a lower section number follows one with a higher number,
or two
.Ic \&Xr
-macros refering to the same section are out of alphabetical order.
+macros referring to the same section are out of alphabetical order.
.It Sy "unusual Xr punctuation"
.Pq mdoc
In the SEE ALSO section, punctuation between two
.Ic \&It
macro.
The offending children are moved before the beginning of the list.
-.It Sy ".Vt block has child macro"
-.Pq mdoc
-The
-.Ic \&Vt
-macro supports plain text arguments only.
-Formatting may be ugly and semantic searching
-for the affected content might not work.
.It Sy "fill mode already enabled, skipping"
.Pq man
A
might otherwise trick a privileged user into inadvertently displaying
the file on the screen, revealing the file content to bystanders.
The argument is ignored including the file name following it.
+.It Sy "skipping display without arguments"
+.Pq mdoc
+A
+.Ic \&Bd
+block macro does not have any arguments.
+The block is discarded, and the block content is displayed in
+whatever mode was active before the block.
.It Sy "missing list type, using -item"
.Pq mdoc
A
.Ic \&de
family with more than two arguments
.It
+.Ic \&Dt
+with more than three arguments
+.It
.Ic \&TH
with more than five arguments
.It
.Xr roff 7 ,
.Xr tbl 7
.Sh AUTHORS
+.An -nosplit
The
.Nm
utility was written by
.An Ingo Schwarze Aq Mt schwarze@openbsd.org .
.Sh BUGS
In
-.Fl T Ns Cm html ,
+.Fl T Cm html ,
the maximum size of an element attribute is determined by
.Dv BUFSIZ ,
which is usually 1024 bytes.
Be aware of this when setting long link
formats such as
-.Fl O Ns Cm style Ns = Ns Ar really/long/link .
+.Fl O Cm style Ns = Ns Ar really/long/link .