Dec 102017
 
PC version of UNIX nroff text formatter utility for DOS. Includes C source code.
File ROFF60.ZIP from The Programmer’s Corner in
Category C Source Code
PC version of UNIX nroff text formatter utility for DOS. Includes C source code.
File Name File Size Zip Size Zip Type
ROFF.DOC 8036 2838 deflated
ROFF.EXE 14110 8238 deflated
ROFF.H0 2688 841 deflated
ROFF.H1 1280 511 deflated
ROFF.H2 1408 508 deflated
ROFF1.C 12292 3736 deflated
ROFF2.C 10141 2726 deflated
ROFF3.C 1323 652 deflated
ROFFPOCK.DOC 3480 488 deflated

Download File ROFF60.ZIP Here

Contents of the ROFF.DOC file


May 20 1986 Modified : to Microsoft C Vers 3.0
By : K.C. Nickerson (PC1367 / 76337.1457)
Mar 04 1984 Modified : to K & R standard C
By : H.L. Lynch
Aug 28, 1982 Modified : for IBM PC
By : M.S. Zachmann

May 07, 1981 Original

ROFF

This version of ROFF, based on the formatter in Kernighan and
Plauger's book SOFTWARE TOOLS, was written in BDS C, and employs the
directed i/o functions that go along with that package. Well, half of
the directed I/O anyway - it doesn't use redirected input because I
wanted to be able to format more than one file at a run.

Sample calls:

A> roff filename

This will send the formatted output to the Console (display)

A> roff > filename2 filename

This will send the formatted output to filename2

A> roff > PRN: filename

This will send the formatted output to the printer.

Using ROFF, you can make nice printouts of a file, with as little
or as much help from the program as you want, depending on the
commands. There are default values for all parameters, so if you don't
put any commands in at all, your file will come out with filled,
right-justified lines. The default line-length is 72 characters; the
default page-length is 66 lines per page. "Filled lines" means that as
many input words as possible are packed onto a line before it is
printed; "non-filled" lines go through the formatter w/o rearrangement.
"Right-justified" simply means that spaces are added between words to
make all the right margins line up nicely.

To set a parameter, use the appropriate commands below. All
commands have the form of a period followed by two letters. A command
line should have nothing on it but the command and its arguments (if
any); any text would be lost.


A command argument can be either ABSOLUTE or RELATIVE :

.in 5 sets the indent value to 5 spaces

.in +5 sets the indent value to the CURRENT value plus 5

.ls -1 sets the line spacing value to the current value
minus one


Also, all commands have a minimum and maximum value that will weed
out any odd command settings (like setting the line spacing to zero,
for example. It won't let you do that, but it could be changed if you
REALLY have a burning desire to do so).

Some commands cause a "break", which is noted in the table below.
Before such a command goes into effect, the current line of text is put
out, whether it is completely filled or not. (this is what happens at
the end of a paragraph, for example.) A line beginning with spaces or a
tab will cause a break, and will be indented by that many spaces (or
tabs) regardless of the indent value at that time (this is a "temporary
indent", which can also be set explicitly). An all blank line also
causes a break. If you find that seem to have some lines that are
indented strangely, and it's not obvious WHY, look at which commands
are causing a break, and which aren't. For instance:

.fi
.ti 0
this is a line of text
.in 8
<- blank line
more text for the machine to play with

At first glance it seems obvious that the line "this is a line of text"
will be indented zero spaces, but it won't - it will be indented 8. The
indent command does NOT cause a break (although the .ti does) so it
will not cause the line to be put out before setting the indent value
to 8. Then, when the blank line is encountered, it will cause a break,
and "this is a line of text" will be indented incorrectly.


*********************** Table of Commands *****************************

Command Break? Default Function
------- ------ ------- ---------
.bp n yes n = +1 begin page numbered n

.br yes cause a break

.ce n yes n = 1 center next n lines

.fi yes active start filling lines

.fo string no empty sets footer to string

.he string no empty sets header to string

.in n no n = 0 sets indent value to n

.ls n no n = 1 sets line spacing to n

.m1 no n = 3 sets topmost margin to n

.m2 no n = 3 sets 2nd top margin to n lines

.m3 no n = 3 1st bottom margin to n lines

.m4 no n = 3 bottom-most margin to n lines

.nf yes passive stop filling lines

.pl n no n = 66 sets page length to n (paper size)

.rm n no n = 72 sets right margin to n

.sp n yes n = 1 space down n lines

.ti n yes n = 0 sets temporary indent of n

.ul n no n = 1 underline next n lines

----------------------------------------------------------------------



Here's what the page parameters look like:

- _________________________________________________
| | top margin - (includes header) |
| |-----------------------------------------------|
| | top margin 2 |
| |-----------------------------------------------|
P | : : |
A | :<-indent : |
G | : : |
E | :lots and lots of silly text and: |
L | :other garbage. Get the picture?: |
E | :This is a temp. indentation: |
N | : : |
G | : right margin ->: |
T | : : |
H | : : |
| |-----------------------------------------------|
| | margin 3 |
| |-----------------------------------------------|
| | margin 4 - (includes footer) |
- -------------------------------------------------


To change the default for any parameter, simply alter ROFFGLOB
recompile ROFF1.c and ROFF2.c, and re-clink them with NDIO.CRL (you can
use DIO.CRL, but it doesn't have all the features of NDIO )



************************************************************
A Few Extra Comments on Some of the Commands:
************************************************************

If you want to center lots of lines, but don't want to count them,
do something like this:

.ce 1000
lots and
lots of words to
be centered
.ce 0

--------------------------------------

To underline a few words on a line:

.fi
.ul
Some
of the words in
.ul
this
sentence are
.ul
underlined
.nf

would produce

Some of the words in this sentence are underlined.
---- ---- -----------

(obviously you don't have to turn the fill on and off if it's already
on )

------------------------------------

A new paragrah may be caused by using the temporary indent command,
like

.ti +5

or by simply beginning the paragraph with a tab, as you would if you
were just typing.

------------------------------------

Headers and Footers.

A page number can be incorporated into any header or footer by
putting a "#" in the title where you want the number to go:

.he This is a witty header title for page #

Each time this is printed at the top of a page, the current page number
will be substituted for the "#".

------------------------------------
If you want to send the output to a file, and don't want the page
breaks in there ( that's what I did for this ) set margins 1-4 to zero.

------------------------------------

/* eof */


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