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29-Apr-87 18:45:30-MDT,9269;000000000001
Date: Wed 29 Apr 87 18:45:29-MDT
From: "Nelson H.F. Beebe" <Beebe@SCIENCE.UTAH.EDU>
Subject: DVI driver update #8
To: beebe@SCIENCE.UTAH.EDU, $90%dhdurz1.bitnet@WISCVM.WISC.EDU, AbbottP%uk.ac.aston.mail%uk.ac.rl.gb@CS.UCL.AC.UK,
Anderson%URegina2.bitnet@WISCVM.WISC.EDU, AustinS%ucbcmsa.edu@CS.UTAH.EDU,
Berg-lists%gsb-why@SCORE.STANFORD.EDU, Brent%CSUFresno.edu@RELAY.CS.NET,
Carvalho%ernie.Berkeley.EDU@CS.UTAH.EDU, CEL@CITHEX.CALTECH.EDU,
Celoni@SCORE.STANFORD.EDU, Cmi011%uk.ac.soton.ibm%ukacrl.bitnet@WISCVM.WISC.EDU,
Crawford-J%ohio-state.arpa@CS.UTAH.EDU, CRM8701%tamvenus.bitnet@WISCVM.WISC.EDU,
Dan%buchmd.bu-cs.arpa@CS.UTAH.EDU, David%ci-dandelion.uucp@EDDIE.MIT.EDU,
French%TI-EG@RELAY.CS.NET, Friesland%rz.informatik.uni-hamburg.dbp.de%germany.csnet@RELAY.CS.NET,
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Mcvax!ukc!sjl@SEISMO.CSS.GOV, MPC91B%dgogwd01.bitnet@WISCVM.WISC.EDU,
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Rohlicek%v1.bbn.com@CS.UTAH.EDU, RS%gnome.cs.cmu.edu@CS.UTAH.EDU,
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Zeffi%finabo.bitnet@WISCVM.WISC.EDU, "*APS:<BEEBE.TEX.DVI>MAIL.TXT.1"@SCIENCE.UTAH.EDU
X-US-Mail: "Center for Scientific Computation, South Physics, University of Utah, Salt Lake City, UT 84112"
X-Telephone: (801) 581-5254
Message-ID: <12298494041.11.BEEBE@SCIENCE.UTAH.EDU>
Two bug fixes are reported in this note. The family has now
been distributed to over 100 sites, and my secretary has
been busy for several days getting packages mailed, with
still a dozen or so to go out.
I have received several reports of promising work in
progress which is summarized in the following paragraphs.
At least one site (Doug Henderson at Berkeley) is adapting
dvialw to support the Mergenthaler Linotronic
PostScript-based phototypesetter, and I hope to visit there
next week.
A couple of sites report work (or good intentions) on
enhancing the dvialw special command support. Brendan McKay
at The Australian National University in Canberra has done
some very nice work adding PostScript support as TeX macros
which result in \special{} commands, and has a port to the
Amiga well on the way. He has also implemented the virtual
font mechanism for VAX VMS. I hope he'll consider writing
up the PostScript work for TUGBoat!
Dean Guenther at Washington State University is implementing
the family on IBM VM/CMS using the Waterloo C compiler.
I also have first reports of use of dvialw with the TI
OmniLaser, which sports version 45.0 of the PostScript
interpreter (Apple's 2 LaserWriter models are versions 23.0
and 38.0 respectively); the use of the "NOTE" paper type in
the dvialw.ps /BOJ macro needs to be changed to LETTER,
since the TI printer doesn't recognize that paper type.
This can be handled portably by some inserting some
PostScript code to check for the existence of that paper
type, but I want to wait and see what changes are needed for
the Mergenthaler before a new version of dvialw.ps is
introduced.
The HPLJ+ driver, dvijep, is known to work on the Personal
Computer Products LaserImage 2000 (Ricoh engine), as well as
on a MIL-STD clone, the Mitek 110T. Isaac Salzman at RDL is
fighting the DataProducts LZR-1230, which is supposed to
emulate the HPLJ+, but apparently has some problems.
For the VAX VMS implementation, the suggestion was raised by
Ned Freed at Harvey Mudd College of using a third parameter,
"ctx=stm", to fopen(), which apparently gets around the need
for special versions of fseek() and ftell() in vaxvms.c. I
haven't done this for two reasons. First, the option is not
documented; it was found in microfiche listings of the C
runtime library, and could disappear, or be changed, in
future versions of VMS C. Second, and most importantly, not
all existing software on VMS knows how to handle stream mode
files, which are new with VMS Version 4. In particular, the
Kellerman and Smith TeX implementation and Imagen DVI driver
and spooler program on which we rely heavily on our VMS
systems do not, and require fixed blocked 512-byte binary
records for DVI and font files. Changing to stream mode
would be very awkward for us. The latest version of the K&S
software with Metafont and enhanced support for our Imagen
3320 printer is on order, and if it includes stream file
support, I may change my position. I cannot think of
anything good to say about record-structured file systems
like VMS and IBM MVS; the MS-DOS, TOPS-20 and Unix view of
files as simple byte streams makes life MUCH easier.
John Pavel at NPL reported some typos in the latest edition
of the DVI driver documentation in dvidriver.ltx and
dviman.texinfo. I have fixed both of these, so some of you
receiving later copies of Version 2.07 will have them
incorporated. I regrettably forgot to rerun GNU EMACS
texinfo-format-buffer on dviman.texinfo after I updated it,
and consequently 3 errors slipped by. Here is VAX VMS style
difference listing:
************
File SYS$LIBROOT:[PLOT79.TEX.DVI.DOC]DVIMAN.TEXINFO;5
624 @item @b{@@}
625 Redisplay current page with @i{startup} page positioning.
******
File SYS$LIBROOT:[PLOT79.TEX.DVI.DOC]DVIMAN.TEXINFO;3
624 @item @b{@}
625 Redisplay current page with @i{startup} page positioning.
************
************
File SYS$LIBROOT:[PLOT79.TEX.DVI.DOC]DVIMAN.TEXINFO;5
634 2, @dots{}. The @TeX{} page numbers are displayed in the
635 status window. This is a recursive display; if you respond
******
File SYS$LIBROOT:[PLOT79.TEX.DVI.DOC]DVIMAN.TEXINFO;3
634 2, @dots. The @TeX{} page numbers are displayed in the
635 status window. This is a recursive display; if you respond
************
************
File SYS$LIBROOT:[PLOT79.TEX.DVI.DOC]DVIMAN.TEXINFO;5
917 EMAIL: Beebe@@Science.Utah.Edu (Internet)
918 @end display
******
File SYS$LIBROOT:[PLOT79.TEX.DVI.DOC]DVIMAN.TEXINFO;3
917 EMAIL: Beebe@Science.Utah.Edu (Internet)
918 @end display
************
Number of difference sections found: 3
Number of difference records found: 3
DIFFERENCES /IGNORE=()/MERGED=1/OUTPUT=SYS$LIBROOT:[PLOT79.TEX.DVI.DOC]DVIMAN.DIF;1-
SYS$LIBROOT:[PLOT79.TEX.DVI.DOC]DVIMAN.TEXINFO;5-
SYS$LIBROOT:[PLOT79.TEX.DVI.DOC]DVIMAN.TEXINFO;3
In dvidriver.sty for Version 2.07, you need to insert a
missing macro which is used in the index file:
\newcommand{\FNNX}[1]{{\tt #1}}
Finally, here are two bug fixes, both VMS-specific, and only
one affects the driver family as currently distributed.
[29-Apr-87] from Brendan Mackay (munnari!anucsd.oz!bdm@seismo.CSS.GOV)
In machdefs.h, change
#define REWIND(fp) fseek(fp,0L,0)
to
#define REWIND(fp) FSEEK(fp,0L,0)
This is not necessary for the family as distributed, but
Brendan has implemented the virtual font changes
necessary for VAX VMS; they should be incorporated in a
future release.
[29-Apr-87] from Brendan Mackay (munnari!anucsd.oz!bdm@seismo.CSS.GOV)
The code for vms_read() [in vaxvms.c] has problems. One
is that you don't test for end of file. The other is
that there is a bug in the C library which prevents you
asking for more than 65535 bytes at a time. It is
documented that no more than 65535 bytes will be
returned, but not that you can't ask for more. If you
do, it reduces your request mod 65536! Here's a
replacement:
/**********************************************************************/
/*-->READ*/
int
READ(file_desc,buffer,nbytes)
register int file_desc;
register char *buffer;
register int nbytes;
{
register int ngot;
register int left;
for (left = nbytes; left > 0; /* NOOP */)
{
ngot = read(file_desc,buffer,(left > 65024 ? 65024 : left));
if (ngot < 0)
return (-1); /* error occurred */
if (ngot == 0) /* eof occurred */
return(nbytes-left);
buffer += ngot;
left -= ngot;
}
return(nbytes-left);
}
-------