V3/usr/man/man1/roff.1

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NAME		roff  --  format text
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SYNOPSIS	roff____ [ +_number ] [ -s__ ] [ -h__ ] file\d1\u ...
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DESCRIPTION	roff____
formats text according to control lines embedded
in the text in file918, ... .
Encountering a nonexistent file terminates printing.
The optional argument "+_number" causes printing
to begin at the first page
with that number.
The optional argument
"-s__" causes printing to stop before each page
including the first
to allow paper manipulation;
printing is resumed upon
receipt of an interrupt signal.
The optional argument
"-h" causes the output to contain
horizontal tabs for two or more spaces
that end on a tab stop.
An interrupt signal received during printing terminates all
printing.
Incoming interconsole messages are turned off during printing,
and the original message acceptance state is restored upon
termination.
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At the present time, there
is no document describing ROFF in full.
A Request Summary is attached.
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FILES		/etc/suftab	suffix hyphenation tables
.br
/tmp/rtm?	temporary
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SEE ALSO	--
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DIAGNOSTICS	none
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BUGS		-
.bp
.de xx
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.li
..
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REQUEST SUMMARY
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Request	Break	Initial	Meaning
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.na
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.xx
.ad	yes	yes	Begin adjusting right margins.
.xx
.ar	no	arabic	Arabic page numbers.
.xx
.br	yes	-	Causes a line break -­ thå filling of
the current line is stopped.
.xx
.bl|n	yes	-	Insert contiguous block of n blank lines.
If necessary, a new page will be
started to accomodate the entire block.
.xx
.bp|+n	yes	n=1	Begin new page and number it n.
If n is not given, normal sequencing occurs.
.xx
.cc|c	no	c=.	Control character becomes `c'.
.xx
.ce|n	yes	-	Center the next n input lines,
without filling.
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.de|xx	no	-	Define macro named "xx"
(definition ends with a line beginning with "..").
.xx
.ds	yes	no	Double space; same as ".ls 2".
.xx
.ef|t	no	t=''''	Even foot title becomes t.
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.eh|t	no	t=''''	Even head title becomes t.
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.fi	yes	yes	Begin filling output lines.
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.fo	no	t=''''	All foot titles are t.
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.hc|c	no	none	Hyphenation character set to `c'.
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.he|t	no	t=''''	All head titles are t.
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.hx	no	-	Title lines are suppressed.
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.hy|n	no	n=1	Hyphenation is done, if n=1;
and is not done, if n=0.
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.ig	no	-	Ignore input lines until and including
a line beginning with "..".
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.in|+n	yes	-	Indent n spaces from left margin.
.xx
.ix +n	no	-	Same as ".in" but without break.
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.li|n	no	-	Literal, treat next n lines as text.
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.ll|+n	no	n=65	Line length including indent is n characters.
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.ls|+n	yes	n=1	Line spacing set to n lines per output line.
.xx
.m1|n	no	n=2	n blank lines are put between the top
of a new page and the head title.
.xx
.m2|n	no	n=2	n blanks lines put between head title
and beginning of text on page.
.xx
.m3|n	no	n=1	n blank lines put between the end of
text and the foot title.
.xx
.m4|n	no	n=3	n blank lines put between the foot title
and the bottom of page.
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.na	yes	no	Stop adjusting the right margin.
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.ne|n	no	-	Begin new page, if n output lines
cannot fit on present page.
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.nn|+n	no	-	The next n output lines are not numbered.
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.n1	no	no	Output lines are numbered sequentially
beginning with 1 on each new page.
Head and foot titles are not numbered.
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.n2	no	no	Output lines are numbered sequentially
beginning with 1 on the next output line.
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.ni|+n	no	n=0	Line numbers are indented n.
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.nf	yes	no	Stop filling output lines.
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.nx|filename	-	Change to input file "filename".
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.of|t	no	t=''''	Odd foot title becomes t.
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.oh|t	no	t=''''	Odd head title becomes t.
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.pa|+n	yes	n=1	Same as ".bp".
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.pl|+n	no	n=66	Total paper length taken to be n lines.
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.po|+n	no	n=0	Page offset.
All lines are preceded by N spaces.
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.ro	no	arabic	Roman page numbers.
.xx
.sk|n	no	-	n pages with head and foot titles but
otherwise blank will be output beginning
with the next page containing text.
.xx
.sp|n	yes	-	Insert block of n blank lines.
If the bottom of a page is reached,
remaining lines are not___ put on next page.
.xx
.ss	yes	yes	Single space output lines,
equivalent to ".ls 1".
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.ta|N|M|...	-	Pseudotab settings.
Initial tab settings are columns 9,17,25,...
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.tc|c	no	c="|"	Tab replacement character becomes "c".
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.ti|+n	yes	-	Temporarily indent next output line
n spaces.
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.tr|abcd.. no	-	Translate a into b, c into d, etc.
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.ul|n	no	-	Underline the letters and numbers on the
next n input lines.
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