.;
.;	R N O P S C . R N O
.;
.;	Runoff parameter setting commands.
.;
.;	HRT 21-Jan-79
.;
.CH; Parameter Setting Commands
.in RNOCHAINI
.;
.ix Parameter Setting
.ix Commands, Parameter Setting
.;
.pp
Parameter Setting commands are a class of RUNOFF commands which
directly affect certain command parameters and command modes.
Right Margin, Left Margin, and Tabstops are but a few of this
class of command. The novice user to RUNOFF need not become too
familiar with this section until a firm understanding of
each of these parameters is attained.
.s
A Novice subset of the Parameter Setting commands would be:
.ls
.NF
.leb;Left Margin  (pg 8-4).
.leb;Right Margin (pg 8-9).
.leb;Spacing      (pg 8-11).
.leb;Tab Stops    (pg 8-12).
.els
.f
A more complete description of these and other commands may be
found either on the page specified or within this section.
.pg	!!
.lm CMDTAB.nf
__________
|        |
|        |
|   .AP  |
|        |
|________|
.fi.lm LEFTMG
.hl 1;AUTOPARAGRAPH command
The AUTOPARAGRAPH command enables the AUTOPARAGRAPH mode.
.s.lm +7.nf
_______________________________________________
|         |                                   |
|   .AP   |[ n, v or v/8 "lines", t "spaces" ]|
|         |                                   |
|_________|___________________________________|
.fi.lm LEFTMG.s
The AUTOPARAGRAPH command causes any blank line or line starting with
a space or tab to be considered as the start of a new paragraph.
.s 2;.lm LEFTMG
Defaults:
.s;.lm +7
This command does not cause a break.
The default mode is NOAUTOPARAGRAPH. The parameters are the same as those
used for the .PARAGRAPH command.
The initial values of the above three parameters are:
.break.nf
n -- (5) indent five spaces.  (can also be negative)
v -- (1) one blank line.
t -- (2) two spaces.
.break.fill
.s 2;.lm LEFTMG
Command Synonyms:
.s;.lm +7
 .AP,.AUTOPARAGRAPH
.s 2;.lm LEFTMG
Notes:
.s;.lm +7
The AUTOPARAGRAPH command allows normally typed text to be
justified without special commands. It does not cause a paragraph
if blank lines are followed by a command.
.s;.lm +7
.ix AP
.ix AUTOPARAGRAPH
.pg !!
.lm CMDTAB.NF
__________
|        |
|        |
|   .CHA |
|        |
|________|
.FILL.lm LEFTMG.s
.ix Change Metacharacter
.hl 1;Change Metacharacter Command
Allows the changing of the RUNOFF special characters.
.s.lm +7.nf
_______________________________________________
|         |                                   |
|   .CHA  |  mnemonic  meta_new               |
|         |                                   |
|_________|___________________________________|
.FI.lm LEFTMG.s
The CHANGE command changes the metacharacter specified by the mnemonic to
a new value.
.s 2
The mnemoics are the following:
.s 2.lit
	UC	Upper case (%^)
	LC	Lower case (%\)
	QU	Quote character (%>)
	UL	Underline (%&)
	SP	Quoted space (%#)
	SS	Superscript (%@)
	SB	Subscript (%~)
	NH	No hyphenation (=)
	AC	All caps (%<)
	IC	In-line comments (%!)
	CS	Font change (%%)
	OB	Overbar (%$)
.eli
.pg !!
.lm CMDTAB.NF
__________
|        |
|        |
|   .CHA |
|        |
|________|
.FILL.lm LEFTMG.s
Defaults:
.s.lm +7
The default metacharacters are %>,%!,%<,%&,%@,%~,%^,%\,%#,%=,%%,%$.
.s 2.lm LEFTMG
Command Synonyms:
.s.lm +7
 .CHANGE,.CHA
.s 2.lm LEFTMG
Notes:
.s.lm +7
This command is usefull when generating a display that requires
the use of characters normally reserved by RUNOFF.
.s 2.lm LEFTMG
Examples:
.s.lm +7
To change the super and subscipt special characters from %@ and %~ to
%{ and %} enter the RUNOFF commands -
.b
 .CHA SS %{
.br
 .CHA SB %}
.pg !!
.lm CMDTAB.nf
__________
|        |
|        |
|   .LM  |
|        |
|________|
.fi.lm LEFTMG
.hl 1;LEFT MARGIN command
The LEFT MARGIN command sets the left margin for the text.
.s.lm +7.nf
_______________________________________________
|         |                                   |
|   .LM   |        [+|- n ]                   |
|         |                                   |
|_________|___________________________________|
.fi.lm LEFTMG;.s
The LEFT MARGIN command sets the left margin to "n" or + or - n relative
to the current setting for the left margin, not to be confused with the
permanent left margin.
.s 2;.lm LEFTMG
Defaults:
.s;.lm +7
The default setting is 10 for /PI:10 and 12 for /PI:12, 10/12 pitch.
.s 2;.lm LEFTMG
Command Synonyms:
.s;.lm +7
 .LEFT MARGIN,.LM
.s 2;.lm LEFTMG
Notes:
.s;.lm +7
The "n" must be less than the right margin, but not less than 0.
If n is signed, +|-, then the value of "n" is either added to or subtracted
from the current value of the left margin. This allows margins to be set
relative to some intial margin settings rather than always specifying
absolute column positions.
.s 2;.lm LEFTMG
Examples:
.s;.lm +7
.s
.ix LM
.ix LEFT MARGIN
.pg !!
.lm CMDTAB.nf
__________
|        |
|        |
|   .NAP |
|        |
|________|
.fi.lm LEFTMG
.hl 1;NO AUTOPARAGRAPH command
The NOAUTOPARAGRAPH command inhibits the AUTOPARAGRAPH mode.
.s.lm +7.nf
_______________________________________________
|         |                                   |
|   .NAP  |                                   |
|         |                                   |
|_________|___________________________________|
.fi.lm LEFTMG.s
The NOAUTOPARAGRAPH command turns off the AUTOPARAGRAPH mode.
.s 2;.lm LEFTMG
Defaults:
.s;.lm +7
This command does not cause a break.
.s 2;.lm LEFTMG
Command Synonyms:
.s;.lm +7
 .NAP,.NOAUTOPARAGRAPH
.s 2;.lm LEFTMG
Notes:
.s;.lm +7
This command is used in conjunction with the AUTOPARAGRAPH command
only.
.s 2;.lm LEFTMG
Examples:
.s;.lm +7
.ix NAP
.ix NOAUTOPARAGRAPH
.in NNPL.RNO
.pg !!
.lm CMDTAB.nf
__________
|        |
|        |
|  .NPL  |
|        |
|________|
.fi.lm LEFTMG
.hl 1;NUMBER PAGE LOW command
The NUMBER PAGE LOW command causes the page numbers to be printed
at the bottom center of the page.
.s.lm +7.nf
_______________________________________________
|         |                                   |
|   .NPL  |                                   |
|         |                                   |
|_________|___________________________________|
.fi.lm LEFTMG.s
The page numbers for the succeeding pages are printed at the bottom
center of the page.
.s 2;.lm LEFTMG
Defaults:
This command does not cause a break.
.s 2;.lm LEFTMG
Command Synonyms:
 .NPL
.s 2;.lm LEFTMG
Notes:
.s;.lm +7
If NPL is engaged there will be 2 blank lines and one line for the page
number reserved at the bottom of each page, even if NO NUMBERING is
declared. You must use the .NNPL command if you do not wish these three
lines to be reserved at page bottoms. The number will be centered between
the permanent margins.
.b
In the default settings below, you would have 51 lines of text, 2 blank
lines, and then the page number.
.ix Defaults
Default page margins etc. are as follows -
.nf.lm+7
 .TM 6
 .PS 54
 .PLM 10 or 12
 .PRM 75 or 90   (/PI:n dependent)
 .NOHEADER
 .NPL
 .NUMBER
.LM-7.F.B
.lm LEFTMG
.ix NPL
.pg !!
.lm CMDTAB.nf
__________
|        |
|        |
|  .PLM  |
|        |
|________|
.fi.lm LEFTMG
.hl 1;PERMANENT LEFT MARGIN command
.ix PLM
.ix MARGINS
The PERMANENT LEFT MARGIN command sets the new permanent left margin.
.s.lm +7.nf
_______________________________________________
|         |                                   |
|   .PLM  |  n                                |
|         |                                   |
|_________|___________________________________|
.fi.lm LEFTMG.s
The new permanent left margin is set to "n."
.s 2;.lm LEFTMG
Defaults:
.s;.lm +7
This command does not cause a break.
Set to 12. If /PI:10 is used then set to 10 at start of run.
.s 2;.lm LEFTMG
Command Synonyms:
.s;.lm +7
 .PLM
.s 2;.lm LEFTMG
Notes:
.s;.lm +7
Permanent margins should generally be set at the beginning of a document and not
be altered therafter. Use .LM to change margins within the text.
.b
The .PLM command sets the left margin (.LM) to "n" also.
.b
The value of PLM is used for centering page numbers and justifying
page headings, footers etc., items that should not float around depending
on the setting of LM.
.ix Defaults
Default page margins etc. are as follows -
.nf.lm+7
 .TM 6
 .PS 54
 .PLM 10 or 12
 .PRM 75 or 90   (/PI:n dependent)
 .NOHEADER
 .NPL
 .NUMBER
.LM-7.F.B
.s 2;.lm LEFTMG
.pg !!
.lm CMDTAB.nf
__________
|        |
|        |
|  .PRM  |
|        |
|________|
.fi.lm LEFTMG
.hl 1;PERMANENT RIGHT MARGIN command
.ix PRM
.ix MARGINS
The PERMANENT RIGHT MARGIN command sets the new permanent right margin.
.s.lm +7.nf
_______________________________________________
|         |                                   |
|   .PRM  |  n                                |
|         |                                   |
|_________|___________________________________|
.fi.lm LEFTMG.s
The new permanent right margin is set to "n."
.s 2;.lm LEFTMG
Defaults:
.s;.lm +7
This command does not cause a break.
Set to 90. If /PI:10 is used then set to 75 at start of run.
.s 2;.lm LEFTMG
Command Synonyms:
 .PRM
.s 2;.lm LEFTMG
Notes:
.s;.lm +7
Permanent margins should generally be set at the beginning of a document and not
be altered therafter. Use .RM to change margins within the text.
.b
The .PRM command sets the right margin (.RM) to "n" also.
.b
The value of PRM
,along with PLM,
is used for centering page numbers and justifying
page headings, footers etc., items that should not float around depending
on the setting of LM and RM.
.ix Defaults
Default page margins etc. are as follows -
.nf.lm+7
 .TM 6
 .PS 54
 .PLM 10 or 12
 .PRM 75 or 90   (/PI:n dependent)
 .NOHEADER
 .NPL
 .NUMBER
.LM-7.F.B
.s 2;.lm LEFTMG
.pg !!
.lm CMDTAB.nf
__________
|        |
|        |
|  .PS   |
|        |
|________|
.fi.lm LEFTMG
.hl 1;PAGE SIZE command
The PAGE SIZE command sets up the number of "lines", or length of a page,
that text will actually be written on a page.
.s.lm +7.nf
_______________________________________________
|         |                                   |
|   .PS   |        [ n "lines" ]              |
|         |                                   |
|_________|___________________________________|
.fi.lm LEFTMG.s
The PAGE SIZE command sets the size of the output page to be
"n" lines long.
.s 2;.lm LEFTMG
Defaults:
.s;.lm +7
This command does not cause a break.
The default page length is 54 lines.
.s 2;.lm LEFTMG
Command Synonyms:
.s;.lm +7
 .PS,.PAPER SIZE
.s 2;.lm LEFTMG
Notes:
.s.lm+7
The page size "n" includes any space that will be taken up for headings
(4 lines) and lower page numbering (3 lines).
.b
Footnotes will not be permitted to overrun the page size.
.b
.ix Defaults
Default page margins etc. are as follows -
.nf.lm+7
 .TM 6
 .PS 54
 .PLM 10 or 12
 .PRM 75 or 90   (/PI:n dependent)
 .NOHEADER
 .NPL
 .NUMBER
.LM-7.F.B
.pg	!!
.lm CMDTAB.nf
__________
|        |
|        |
|   .RM  |
|        |
|________|
.fi.lm LEFTMG
.hl 1;RIGHT MARGIN command
The RIGHT MARGIN command sets the right margin for the text.
.s.lm +7.nf
_______________________________________________
|         |                                   |
|   .RM   |        [+|- n ]                   |
|         |                                   |
|_________|___________________________________|
.fi.lm LEFTMG;.s
The RIGHT MARGIN command sets the right margin to "n" or + or - n relative
to the current setting for the right margin, not to be confused with the
permanent right margin.
.s 2;.lm LEFTMG
Defaults:
.s;.lm +7
The default setting is 75 for /PI:10 and 12 for /PI:12, 10/12 pitch.
.s 2;.lm LEFTMG
Command Synonyms:
.s;.lm +7
 .LEFT MARGIN,.LM
.s 2;.lm LEFTMG
Notes:
.s;.lm +7
The "n" must be greater than the left margin and less than 133.
If n is signed, +|-, then the value of "n" is either added to or subtracted
from the current value of the right margin. This allows margins to be set
relative to some intial margin settings rather than always specifying
absolute column positions.
.s 2;.lm LEFTMG
Examples:
.s;.lm +7
.s
.ix RM
.ix RIGHT MARGIN
.pg !!
.lm CMDTAB.nf
__________
|        |
|        |
|   .SD  |
|        |
|________|
.fi.lm LEFTMG
.hl 1;STANDARD command
The STANDARD command resets all parameter settings to their defaults.
.s.lm +7.nf
_______________________________________________
|         |                                   |
|   .SD   |        [ n ]                      |
|         |                                   |
|_________|___________________________________|
.fi.lm LEFTMG.s
The STANDARD command is used to restore all initial settings of
changeable parameters. If "n" is specified, a page will be
set up relative to "n" ("n" is the margin width).
.S 2;.lm LEFTMG
Defaults:
.s;.lm +7
This command does not cause a break.
.s 2;.lm LEFTMG
Command Synonyms:
.s;.lm +7
 .SD,.STANDARD
.s 2;.lm LEFTMG
Notes:
.s;.lm +7
This command is useful if settings are changed and it becomes
necessary to re-initialize the standard block format.
.s 2;.lm LEFTMG
Examples:
.s;.lm +7
.ix SD
.ix STANDARD
.in SETSS.RNO
.in TM.RNO
.pg !!
.lm CMDTAB.NF
__________
|        |
|        |
|   .SP  |
|        |
|________|
.fi.lm LEFTMG
.hl 1;SPACING command
The SPACING command sets the spacing between lines.
.s;.lm +7.nf
_______________________________________________
|         |                                   |
|   .SP   |        [ n or n/8 "lines"]        |
|         |                                   |
|_________|___________________________________|
.fi.lm LEFTMG.s
The Spacing command sets line spacing to "n".
.s 2;.lm LEFTMG
Defaults:
.s;.lm +7
This command does not cause a break.
The default setting for "n" is 1, single spaced.
.s 2;.lm LEFTMG
Command Synonyms:
.s;.lm +7
 .SP,.SPACING
.s 2;.lm LEFTMG
Notes:
.s;.lm +7
The "n" can range from 1 to 5.
 .SP 1 is like single spacing on a typewriter.
 .SP 2 is like double spacing on a typewriter. That is,
 .SP 2 puts one blank line between each line of text.
"n" can also be in terms of partial lines so you can have one and one-half
spacing or even one and one-eighth spacing etc. Spacing is set to 1/8 while
in equation mode.
.s 2;.lm LEFTMG
Examples:
.s;.lm +7
 To set for one and one-half spacing use the command -
.b
 .SP 1+1/2
.br
      or
.br
 .SP 3/2
.ix SP
.ix SPACING
.pg !!
.lm CMDTAB.nf
__________
|        |
|        |
|   .TS  |
|        |
|________|
.fi.lm LEFTMG
.hl 1;TABSTOP command
The TABSTOP command is used to define tab stops.
.s.lm +7.nf
_______________________________________________
|         |                                   |
|   .TS   |        [ n,n,... ]                |
|         |                                   |
|_________|___________________________________|
.fi.lm LEFTMG;.s
This command is used to set tabstops for the output file.
.s 2;.lm LEFTMG
Defaults:
.s;.lm +7
This command does not cause a break.
The default tabs are set at eight-column intervals to
match the DIGITAL hardware standard. These tabs are at
columns 9, 17, 25, 33, 41, 49, 57, and 65.
.s 2;.lm LEFTMG
Command Synonyms:
.s;.lm +7
 .TS;.TAB STOPS
.s 2;.lm LEFTMG
Notes:
.s;.lm +7
The "n" must be greater than 0 and listed in ascending order.
.b
"n" may also be signed with a "+".
If the plus sign is used then the first tab will be relative to the
left margin (LM) and subsequent tabs with the plus sign will be
relative to the ^&previous\& tab stop.
.b
Tabs can only be used in lines that are unjustified and unfilled.
If tabs already exist, the issuing of another "TAB STOPS" command
clears all previous tabs before setting new tabstops.
Remember, "FILL/JUSTIFY" mode must be disengaged in order for
tab stops to work.
.s 2;.lm LEFTMG
Examples:
.s;.lm +7
.ix TS
.ix TAB STOPS