User Commands GROTTY(1)
NAME
grotty - groff driver for typewriter-like devices
SYNOPSIS
grotty [ -bBcdfhioruUv ] [ -Fdir ] [ files... ]
It is possible to have whitespace between the -F option and
its parameter.DESCRIPTION
grotty translates the output of GNU troff into a form suit-
able for typewriter-like devices. Normally grotty should be
invoked by using the groff command with a -Tascii, -Tlatin1
or -Tutf8 option on ASCII based systems, and with -Tcp1047
and -Tutf8 on EBCDIC based hosts. If no files are given,
grotty will read the standard input. A filename of - will
also cause grotty to read the standard input. Output is
written to the standard output.By default, grotty emits SGR escape sequences (from ISO
6429, also called ANSI color escapes) to change text attri-
butes (bold, italic, colors). This makes it possible to have eight different M[green]backgroundM[] and m[red]foregroundm[] colors; additionally, bold and italic attributes can be used BI]at the same time] (by using the BI font). The following colors are defined in tty.tmac: black, white, red, green, blue, yellow, magenta, cyan. Unknown colors aremapped to the default color (which is dependent on the set-
tings of the terminal; in most cases, this is black for the foreground and white for the background).Use the -c switch to revert to the old behaviour, printing a
bold character c with the sequence `c BACKSPACE c' and anitalic character c by the sequence `_ BACKSPACE c'. At the
same time, color output is disabled. The same effect can beachieved by setting either the GROFF_NO_SGR environment
variable or using the `sgr' X command (see below).For SGR support, it is necessary to use the -R option of
less(1) to disable the interpretation of grotty's old output
format. Consequently, all programs which use less as the pager program have to pass this option to it. For man(1) inparticular, either add -R to the $PAGER environment vari-
able, e.g." PAGER="/usr/bin/less -R"
export PAGERor use the -P option of man to set the pager executable and
its options, or modify the configuration file of man in a Groff Version 1.19.2Last change: 21 October 2010 1 User Commands GROTTY(1) similar fashion.grotty's old output format can be displayed on a terminal by
piping through ul(1). Pagers such as more(1) or less(1) arealso able to display these sequences. Use either -B or -U
when piping into less(1); use -b when piping into more(1).
There is no need to filter the output through col(1) sincegrotty never outputs reverse line feeds.
The font description file may contain a command internalname n where n is a decimal integer. If the 01 bit in n is set, then the font will be treated as an italic font; if the 02 bit is set, then it will be treated as a bold font. The code field in the font description field gives the code which will be used to output the character. This code can also be used in the [rs]N escape sequence in troff. OPTIONS-b Suppress the use of overstriking for bold characters.
Ignored if -c isn't used.
-B Use only overstriking for bold-italic characters.
Ignored if -c isn't used.
-c Use grotty's old output format (see above). This also
disables color output.-d Ignore all [rs]D commands. Without this grotty will
render [rs]D'l...' commands that have at least one zero argument (and so are either horizontal or vertical)using -, |, and + characters.
-f Use form feeds in the output. A form feed will be out-
put at the end of each page that has no output on its last line.-Fdir
Prepend directory dir/devname to the search path for font and device description files; name is the name of the device, usually ascii, latin1, utf8, or cp1047.-h Use horizontal tabs in the output. Tabs are assumed to
be set every 8 columns.-i Use escape sequences to set the italic text attribute
instead of the underline attribute for italic fonts (`I' and `BI'). Note that most terminals (includingxterm) don't support this. Ignored if -c is active.
Groff Version 1.19.2Last change: 21 October 2010 2 User Commands GROTTY(1)-o Suppress overstriking (other than for bold or under-
lined characters in case the old output format has beenactivated with -c).
-r Use escape sequences to set the reverse text attribute
instead of the underline attribute for italic fonts(`I' and `BI'). Ignored if -c is active.
-u Suppress the use of underlining for italic characters.
Ignored if -c isn't used.
-U Use only underlining for bold-italic characters.
Ignored if -c isn't used.
-v Print the version number.
USAGE
grotty understands a single X command produced using the
[rs]X escape sequence. [rs]X'tty: sgr n'If n is non-zero or missing, enable SGR output (this is
the default), otherwise use the old drawing scheme for bold and underline. ENVIRONMENTGROFF_NO_SGR
If set, the old drawing scheme for bold and underline (using the backspace character) is active. Colors are disabled. FILES/usr/share/groff/1.19.2/font/devascii/DESC Device description file for ascii device.
/usr/share/groff/1.19.2/font/devascii/F Font description file for font F of ascii device.
/usr/share/groff/1.19.2/font/devlatin1/DESC Device description file for latin1 device.
/usr/share/groff/1.19.2/font/devlatin1/F Font description file for font F of latin1 device.
/usr/share/groff/1.19.2/font/devutf8/DESC Device description file for utf8 device.
/usr/share/groff/1.19.2/font/devutf8/F Font description file for font F of utf8 device.
/usr/share/groff/1.19.2/font/devcp1047/DESC Device description file for cp1047 device. Groff Version 1.19.2Last change: 21 October 2010 3 User Commands GROTTY(1)
/usr/share/groff/1.19.2/font/devcp1047/F Font description file for font F of cp1047 device. /usr/share/groff/1.19.2/tmac/tty.tmac
Macros for use with grotty.
/usr/share/groff/1.19.2/tmac/tty-char.tmac
Additional klugdey character definitions for use withgrotty.
Note that on EBCDIC hosts, only files for the cp1047 device will be installed.BUGS
grotty is intended only for simple documents.
There is no support for fractional horizontal or vertical motions. There is no support for [rs]D commands other than horizontal and vertical lines. Characters above the first line (ie with a vertical position of~0) cannot be printed. Color handling is different compared to grops(1). [rs]M doesn't set the fill color for closed graphic objects (whichgrotty doesn't support anyway) but changes the background
color of the character cell, affecting all subsequent opera-
tions.ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Availability | SUNWgroff ||_____________________________|_____________________________|
| Interface stability | Uncommitted ||_____________________________|_____________________________|
SEE ALSO
groff(1), gtroff(1), groff_out(5), groff_font(5),
groff_char(7), ul(1), more(1), man(1), less(1)
Groff Version 1.19.2Last change: 21 October 2010 4