path: root/src/roff/nroff/nroff.1.man

.TH @g@nroff @MAN1EXT@ "@MDATE@" "groff @VERSION@"
.SH Name
@g@nroff \- format documents with groff for TTY (terminal) devices
.
.
.\" ====================================================================
.\" Legal Terms
.\" ====================================================================
.\"
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.\"
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.\" preserved on all copies.
.\"
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.\" this manual under the conditions for verbatim copying, provided that
.\" the entire resulting derived work is distributed under the terms of
.\" a permission notice identical to this one.
.\"
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.\" manual into another language, under the above conditions for
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.\" included in translations approved by the Free Software Foundation
.\" instead of in the original English.
.
.
.\" Save and disable compatibility mode (for, e.g., Solaris 10/11).
.do nr *groff_nroff_1_man_C \n[.cp]
.cp 0
.
.
.\" ====================================================================
.SH Synopsis
.\" ====================================================================
.
.SY @g@nroff
.RB [ \-cCEhipStUV ]
[\c
.BI \-d cs\c
]
[\c
.BI \-m name\c
]
[\c
.BI \-M dir\c
]
[\c
.BI \-n num\c
]
[\c
.BI \-o list\c
]
[\c
.BI \-P post-proc-option\c
]
[\c
.BI \-r cn\c
]
[\c
.BI \-T name\c
]
[\c
.BI \-w warning\c
]
[\c
.BI \-W warning\c
]
.RI [ file
\&.\|.\|.\&]
.YS
.
.
.SY @g@nroff
.B \-\-help
.YS
.
.
.SY @g@nroff
.B \-v
.
.SY @g@nroff
.B \-\-version
.YS
.
.
.\" ====================================================================
.SH Description
.\" ====================================================================
.
.I \%@g@nroff
formats documents written in the
.IR roff (@MAN7EXT@)
language for typewriter-like devices such as terminal emulators.
.
GNU
.I nroff \" GNU
emulates the AT&T
.I nroff \" AT&T
command using
.IR groff (@MAN1EXT@).
.
.I \%@g@nroff
generates output via
.IR grotty (@MAN1EXT@),
.IR groff 's
terminal output driver,
which needs to know the character encoding scheme used by the device.
.
Consequently,
acceptable arguments to the
.B \-T
option are
.BR ascii ,
.BR latin1 ,
.BR utf8 ,
and
.BR cp1047 ;
any others are ignored.
.
If neither the
.I \%GROFF_TYPESETTER
environment variable nor the
.B \-T
command-line option
(which overrides the environment variable)
specifies a (valid) device,
.I \%@g@nroff
consults the locale to select an appropriate output device.
.
It first tries the
.IR locale (1)
program,
then checks several locale-related environment variables;
see section \[lq]Environment\[rq], below.
.
If all of the foregoing fail,
.B \-Tascii
is implied.
.
.
.P
Whitespace is
.I not
permitted between an option and its argument.
.
The
.BR \-C ,
.BR \-d ,
.BR \-E ,
.BR \-i ,
.BR \-m ,
.BR \-M ,
.BR \-n ,
.BR \-o ,
.BR \-P ,
.BR \-r ,
.BR \-w ,
and
.B \-W
options have the effect described in
.IR \%@g@troff (@MAN1EXT@).
.
.B \-c
and
.B \-h
are equivalent to
.RB \[lq] \-P\-c \[rq]
and
.RB \[lq] \-P\-h \[rq],
respectively.
.
In addition,
this implementation ignores the AT&T
.I nroff \" AT&T
options
.BR \-e ,
.BR \-q ,
and
.B \-s
(which are not implemented in
.IR groff ).
.
The options
.B \-p
(pic),
.B \-t
.RB ( tbl ),
.B \-S
(safer),
and
.B \-U
(unsafe) are passed to
.IR groff .
.
.B \-V
causes
.I \%@g@nroff
to display the constructed
.I groff
command on the standard output,
but does not execute it.
.
.B \-v
and
.B \-\-version
show version information,
while
.B \-\-help
displays a usage message;
all exit afterward.
.
.
.\" ====================================================================
.SH Environment
.\" ====================================================================
.
.TP
.I GROFF_BIN_PATH
is a colon-separated list of directories in which to search for the
.I groff
executable before searching in
.IR PATH .
.
If unset,
.I \%@BINDIR@
is used.
.
.
.TP
.I GROFF_TYPESETTER
specifies the default output device for
.IR groff .
.
.
.TP
.I LC_ALL
.TQ
.I LC_CTYPE
.TQ
.I LANG
.TQ
.I LESSCHARSET
are pattern-matched in this order for contents matching standard
character encodings supported by
.I groff
in the event no
.B \-T
option is given and
.I \%GROFF_TYPESETTER
is unset.
.
.
.\" ====================================================================
.SH Notes
.\" ====================================================================
.
.P
Pager programs like
.IR more (1)
and
.IR less (1)
may require command-line options to correctly handle some output
sequences;
see
.IR \%grotty (@MAN1EXT@).
.
.
.P
Character definitions in the file
.I \%@MACRODIR@/\:tty\-char\:.tmac
are loaded to replace unrepresentable glyphs.
.
.
.\" ====================================================================
.SH "See also"
.\" ====================================================================
.
.IR groff (@MAN1EXT@),
.IR \%@g@troff (@MAN1EXT@),
.IR grotty (@MAN1EXT@),
.IR locale (1),
.IR roff (@MAN7EXT@)
.
.
.\" Restore compatibility mode (for, e.g., Solaris 10/11).
.cp \n[*groff_nroff_1_man_C]
.
.
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