PSDIT(1) Impressario PSDIT(1)NAMEpsdit - convert troff intermediate format to POSTSCRIPT format
SYNOPSISpsdit [ -Ffontdir ] [ -pprologue ] [ -olist ] [ file ]
DESCRIPTIONpsdit translates a file created by device-independent troff(1) to
POSTSCRIPT format for printing on a POSTSCRIPT printer. If no file is
mentioned, the standard input is used. The POSTSCRIPT file is sent to
the standard output. The options are:
-F fontdir
take font information from fontdir instead of the default (see
below).
-p prologue
use the contents of prologue instead of the default POSTSCRIPT
prologue (see below).
-o list
prints pages whose numbers are given in the comma-separated list.
The list contains single numbers N and ranges N1-N2. A missing N1
means the lowest-numbered page, a missing N2 means the highest.
Note: the input for psdit should be prepared with the corresponding -Tpsc
option of troff, pic, etc.
eqn should be run with the flags -r576 and -m2 to produce suitable
output.
pic should be run with the -D flag. With pic, use -T576 to set the
correct resolution.
psdit allows for users to cause troff to include arbitrary POSTSCRIPT
code in the generated POSTSCRIPT file. psdit recognizes the heretofore
undefined ``%'' command in the troff intermediate file format to signal
the start of raw POSTSCRIPT to be placed as is in the the output file.
Everthing between (but not including) the percent sign and a line
containing a single period (``.'') will be placed in the generated
POSTSCRIPT output. This POSTSCRIPT is not insulated from the troff
coordinate system or the state of the generated POSTSCRIPT. However, two
functions are defined in the prologue so that user's may insulate
themselves if they so desire. The PB function (for picture begin) will
perform a POSTSCRIPT save operation, translate the POSTSCRIPT coordinate
system to troff's idea of the current position on the page, and change
the scale and orienation of the coordinate system axes to be the standard
POSTSCRIPT 72 units per inch. The PE macro (for picture end) will end
this protected environment.
Several methods may be employed to incorporated such included POSTSCRIPT
into the troff intermediate file. The ``.cf'' ``.sy'' and ``\!'' troff
commands may be useful. For example, the following sequence may appear
in troff input:
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PSDIT(1) Impressario PSDIT(1)
(usual troff input)
\!%PB
.cf mypic.ps
\!PE
\!.
(more regular troff input)
to include mypic.ps as an illustration. This facility is both powerful
and useful, but indiscriminate inclusion of badly-behaving POSTSCRIPT
code may be dangerous to your document's health.
ENVIRONMENT
PSLIBDIR
path name of a directory to use instead of /usr/lib/ps for psdit
prologue.
FILES
/usr/lib/font/devpsc/* - troff default description files for POSTSCRIPT
virtual device.
/usr/lib/ps/psdit.pro - default POSTSCRIPT prologue.
SEE ALSOpsroff(1), troff(1), lp(1).
A Typesetter-independent TROFF Brian W. Kernighan, Bell Laboratories 1982
Documenter's Workbench
BUGS
The versions of eqn and pic distributed with troff (from AT&T) have the
device names compiled in (so much for device independence!). They should
just read the device description file for the information they need. You
must be careful to know which version of eqn you are running or you will
get undesirable results.
The B-splines generated by troff are drawn with an approximation. The
functions D~ and D~~ in the prologue need a little work.
NOTES
POSTSCRIPT is a registered trademark of Adobe Systems Incorporated.
Documenter's Workbench is a trademark of AT&T Technologies.
ORIGIN
Adobe Systems Incorporated
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