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This appendix discusses the following topics:
PostScript provides a character set encoded using the Adobe Standard Encoding vector. When a PostScript program calls a font, the findfont operator uses this vector to associate characters with character codes.
PostScript also provides the ISO Latin-1 encoding vector, named ISOLatin1Encoding, which is the encoding scheme used by the ISO Latin Alphabet Number 1 Standard (ISO 8859/1). Most PostScript text fonts provide all the characters used in the ISO Latin-1 encoding. See the PostScript Printers Programmer's Supplement for a list of the characters included in the ISO Latin Alphabet Number 1 Standard.
In addition to Adobe Standard and ISO Latin-1 encodings, the DECprint Supervisor software offers the DECMCS (DEC Multinational Character Set) encoding. See the PostScript Printers Programmer's Supplement for a list of the characters included in the DEC Multinational Character Set.
Characters in the ISO Latin-1 and DECMCS encodings do not have separate
font metrics files (.AFM files). (For more information on .AFM files,
refer to the PostScript Printers Programmer's Supplement.) If you need to look up character
information in a font metrics file, look up the character by its name,
not by its encoding.
E.2 Examples of Encoding Vectors
Example E-1 demonstrates how to define the DECMCS encoding vector. See the PostScript Printers Programmer's Supplement for more information about how these encoding vectors are defined.
The encoding vector DECMCSEncoding is defined by changing the vector ISOLatin1Encoding.
| Example E-1 Defining the DECMCS Encoding Vector |
|---|
%! DECMCSEncoding.PS
%
% Create DEC Multinational Character Set (MCS) encoding vector.
/DECMCSEncoding ISOLatin1Encoding 256 array copy def
mark
8#177 8#240 8#244 8#246 8#254 8#255 8#256 8#257
8#264 8#270 8#276 8#320 8#336 8#360 8#376 8#377
counttomark
{DECMCSEncoding exch /questionmirror put}
repeat
% stack now contains mark
8#250 /currency
8#327 /OE
8#335 /Ydieresis
8#367 /oe
8#375 /ydieresis
counttomark 2 idiv
{DECMCSEncoding 3 1 roll put}
repeat
% stack now contains mark
cleartomark
|
To use a character encoding other than the Adobe Standard Encoding, follow these steps:
/encodefont {
findfont dup % Get the old font dict.
maxlength dict begin % Make a new one just as big.
{ 1 index /FID ne % Copy everything but FID.
{ def }
{ pop pop }
ifelse }
forall
/Encoding exch def % Install the new encoding.
dup /FontName exch def % New font dict is still current.
currentdict definefont % Create the new font.
end
} bind def
|
/Times-Roman-ISOLatin1 ISOLatin1Encoding
/Times-Roman encodefont
12 scalefont setfont
|
/Times-Roman-ISOLatin1 ISOLatin1Encoding
/Times-Roman encodefont pop
.
.
.
/Times-Roman-ISOLatin1 findfont 12 scalefont setfont
|
To use the DECMCS encoding, you must also include the device control library module (LPS$DECMCSENCODING) that defines this encoding vector. The LPS$DECMCSENCODING module provides encoding vectors only. It does not define characters that were undefined in versions of PostScript lower than Version 40.
Example E-1 shows how the DECMCS encoding vector is defined.
E.4 Including the DECMCS Encoding Module in a Print Job
To use the DECMCS encoding modules, specify the following:
$ PRINT/SETUP=(LPS$DECMCSENCODING) filename.PS |
For PostScript printers that use a version of PostScript Level 1 lower than Version 40, you may need to define an ISO Latin-1 encoding vector to print PostScript files that use this encoding. For example, suppose you have a PostScript program that requires the ISO Latin-1 encoding vector to print on a typesetter that uses an early version of PostScript.
In this case, you can use the encodefont procedure, but you also have to define the ISO Latin-1 encoding vector in the prologue of your PostScript program. Extract the LPS$ISOLATIN1ENCODING module from the device control library:
$LIB - /Extract=LPS$ISOLatin1Encoding - /Out=ISOLatin1Encoding.ps - Sys$Library:DCPS$DEVCTL.TLB |
The LPS$ISOLATIN1ENCODING module provides encoding vectors only. The module does not define characters that were undefined in versions of PostScript lower than Version 40.
This appendix lists Compaq software documents and documentation kits
associated with PostScript printers, and their respective order numbers.
F.1 DECprint Supervisor (DCPS) for OpenVMS
Software Installation Guide
System Manager's Guide
User's Guide
DECprint Supervisor (DCPS) for OpenVMS Alpha V2.1
DECprint Supervisor (DCPS) for OpenVMS VAX V2.1
Release Notes
Software Installation Guide
Software Product Description (SPD)
System Manager's Guide
User's Guide
Bookreader
HTML (Hypertext Markup Language)
PDF (Acrobat Portable Document Format)
PS (PostScript)
Text
* Third Edition available from Adobe Systems Incorporated |
F.3 DIGITAL ANSI-Compliant Level 3 Printing Protocol
Documentation (order number: EK-PPLV3-DK)
| Software Document | Part Number |
|---|---|
| DIGITAL UNIX | QA-0V9AJ-GZ |
| HP-UX | QA-0V9AD-GZ |
| IBM-AIX | QA-0V9AE-GZ |
| IRIX | QA-0V9AQ-GZ |
| OpenVMS | QA-0V9AA-GZ |
| Solaris | QA-0V9AK-GZ |
| SunOS | QA-0V9AC-GZ |
| ULTRIX | QA-0V9AB-GZ |
| Windows | QA-0V9AH-GZ |
Advanced Server for OpenVMS: The software product that
runs on the OpenVMS server to provide central management of
network-wide resources and communications for Windows systems.
ANSI: Refers to DIGITAL ANSI-Compliant Printing
Protocol Level 3.
ANSI/sixel file: A file that contains data stored in
ANSI or sixel format, such as an LN03 file.
AppleTalk network system: A communications environment
that provides users with such options as sharing files, sharing
printers, and sending messages. The network devices and software in the
system use AppleTalk protocols for communicating. The design of
AppleTalk allows you to select the type of transmission media, while
retaining the AppleTalk services and interface.
AppleTalk printer: A printer attached to the AppleTalk
network and accessible using the AppleTalk protocols, particularly the
Printer Access Protocol (PAP).
ASCII: A file that contains ANSI text data with no
escape sequences.
aspect ratio: The ratio of page width to page length.
automatic data type detection: The process by which
the DECprint Supervisor software investigates print files to determine the
data type of the file.
bitmap: An image in digitized form that can be stored,
transmitted, and reproduced.
burst page: A page printed between print jobs or
copies of print files, if requested. Useful for separating print jobs
manually.
client system: A network node that runs DECprint Supervisor
software to access a PrintServer printer.
command qualifier: A qualifier that affects the
processing of the entire command. See also positional
qualifier.
CPAP: Common Printer Access Protocol. A printer
protocol that layers upon the TCP/IP and DECnet network protocols and
is used by DECprint Supervisor for OpenVMS to communicate with DIGITAL PrintServer
printers.
data syntax: See data type.
data type: The data format of a file to be printed.
DDIF (DIGITAL Document Interchange Format) file: A
file that contains data stored in the DIGITAL data syntax for conveying
image data.
DECimage: Image enhancement technology available in
some printers, for example, the DIGITAL PrinterServer printers and
DEClaser 5100 printer. This feature gives increased clarity,
smoothness, and sharpness to graphics. Applicable to PostScript images
only, it is best applied to continuous grayscale images, though it may
also be applied to synthetic images created with a graphics application.
DECimage-Lite: A feature of the DECprint Supervisor software
that provides a subset of the DECimage image enhancement technology
through the use of setup modules. See also
DECimage.)
DECnet: DIGITAL networking protocol.
DECprint Supervisor: The software product consisting
of a print symbiont and data type translators for printing on
PostScript printers.
DECserver: A communications device that allows
printers to be connected directly to the Ethernet network, providing
network access for serial-based printers. Network protocols offered
usually include LAT, and often raw TCP/IP.
device control library: A library that contains a
series of text modules that can be sent to the device associated with a
queue, to affect the behavior of that device.
desktop printer: A printer, historically low to medium
speed, that is accessible through a raw TCP/IP, LAT, or AppleTalk
network connection or through a direct serial connection to your system.
device control module: See setup
module.
device control library: A library containing a series
of text modules that can be sent to the device associated with a queue.
The modules affect device behavior or file printing.
duplex printing: Printing on two sides of each sheet
of paper.
execution queue: The print queue associated with a
specific physical printing output device.
facedown: A method of stacking printer output, where
the paper is stacked front side down.
faceup: A method of stacking printer output, where the
paper is stacked front side up.
file extension: The portion of the file name following
the period. In the file MYFILE.TXT, the file extension is TXT.
file separation pages: Pages printed before and after
each file is printed. File separation pages can be enabled and disabled
with the PRINT command. See also job separation
pages.
finisher: A part of a printer, often optional, that
allows print jobs to be punched or stapled automatically.
flag page: An optional page that precedes each file or
job that is printed. The flag page contains information about the
printer and the print job, including any message from the PRINT/NOTE
qualifier.
file type: See file
extension.
font: The artistic representation of a typeface that
describes a set of characters rendered in a particular point size,
weight, and style.
font cartridge: A physical memory cartridge that
contains a family of fonts, used to add font choices on an LN03 printer
or DEClaser printer. The DECprint Supervisor software emulates this feature
using the soft font kits. See also soft font.
font file: A data file that contains information used
to reproduce a specific font.
generic queue: The logical printer queue that accepts
the print job from the user and directs it to the appropriate execution
queue.
gray-scale: A method of printing photographs on
PostScript printers.
host: The computer system that provides services and
management of printers.
image file: A file containing a picture or graphic
image to be printed.
job: The print job.
job log page: An optional log page that contains
messages from the system during printing.
job separation pages: Job burst pages, job flag pages,
and job trailer pages, optionally available on print queues to record
information about the print job. Job separation pages are included as
part of the queue. These pages are useful for manually separating
printer output.
landscape orientation: Paper orientation in which text
is read parallel to the long side of the paper.
layup: A feature of the DECprint Supervisor software that
allows you to control the mapping of pages to sheets. You can control
the placement of the pages on the sheet and the number of pages to be
printed on each sheet.
layup definition file: A file stored in a directory
defined by DCPS$LAYUP, which you may include with your print job to
specify page layup.
logical page: An indivisible image to be printed.
network printer: A printer that is accessible from
multiple nodes in the same network.
network printing: A configuration of printers on a
network that allows several users to share a printer and to access it
from network nodes such as PCs and host systems.
NIC: Network Interface Card. A hardware device for
connecting a printer to a network. It may be built into a printer or
added later as an option. The NIC contains firmware that implements
various network protocols such as raw TCP/IP, AppleTalk and LAT. The
protocols offered by the NIC depend on its particular features and how
it is configured.
number-up: Printing multiple pages on one side of a
sheet of paper.
OpenVMS Alpha: The OpenVMS operating system that runs
on Compaq's Alpha processors.
OpenVMS VAX: The OpenVMS operating system that runs on
Compaq's VAX processors. Older versions of OpenVMS VAX were called
VAX/VMS.
page: A page of data. See also
logical page.
page spot: The area on a sheet where a page can be
printed. /PARAMETERS=NUMBER_UP and /PARAMETERS=LAYUP_DEFINITION=GRID
are used to define the number of page spots on a sheet.
PATHWORKS: A collection of software products that
provide communication, shared resources, and centralized management of
PCs from a host system, such as OpenVMS.
PATHWORKS for OpenVMS (LAN Manager): The PATHWORKS
software product that runs on the OpenVMS server node to provide
central management of network-wide resources and communications for
Windows systems. This product has been replaced by Advanced Server for
OpenVMS and PATHWORKS (Advanced Server).
PATHWORKS for OpenVMS (Macintosh): The PATHWORKS
software product that provides OpenVMS server software for PATHWORKS
for Macintosh configurations. This software includes the AppleTalk
network protocol so that an OpenVMS system can be part of an AppleTalk
network. This product has been retired and is no longer supported by
Compaq.
PC: A personal computer that runs either the Windows
or DOS operating system.
PCL file: A file that contains data stored in the HP
PCL (Page Control Language) data type. The DECprint Supervisor includes
translator software to translate PCL4 files generated for printing on
HP's LaserJet IID printer to PostScript for printing on PostScript
printers.
point: A unit of measurement in printing, where 72
points equal 1 inch.
portrait orientation: Paper orientation in which the
text is read parallel to the short side of the paper.
positional qualifier: A qualifier that affects a
single part of a command line, for example, one file in a print job.
See also command qualifier.
PostScript file: A file in PostScript language, which
is designed to convey a description of the desired page to the printer
and may include a combination of text, graphics, and bitmap images.
PostScript printer: A printer designed to print files
in PostScript format.
print engine: The internal engine in the printing
device.
print job: A print request of one or more files and
associated print requirements.
print queue: The queue in which a print job waits to
be printed.
print server: A hardware device for connecting a
printer to a network, usually attached to the printer's parallel port.
The protocols offered by the print server depend on its particular
features and how it is configured, but usually include raw TCP/IP and
AppleTalk, and sometimes LAT.
PrintServer Software: The software for managing
DIGITAL PrintServer printers.
PrintServer software remote console: The PrintServer
software that allows the printer to be managed from the supporting host.
print symbiont: The software that processes the user's
print request, arranges to have data translated, if required, sends the
data to the printer, and reports messages from the printer.
printer: The printing device.
Proprinter file: A file created for printing on IBM
Proprinter devices.
raw TCP/IP: A network protocol that utilizes the
TCP/IP protocol directly without any additional interpretation of the
TCP data stream. It is supported by many printer Network Interface
Cards (NICs), print servers, and terminal servers.
recto page: An odd-numbered page in a book. In an open
book, the recto page is always on the right. For example, page 1 is
always a recto page. For a single sheet, the recto page is always the
page on the front of the sheet. Compare with verso
page.
ReGIS file: A file containing graphics data in DIGITAL
ReGIS data format.
serial printer: A printer that is connected to the
system by serial communications.
server node: The host system for managing shared
resources in a network configuration.
setup module: A file in a device control library that
is sent to the printer before the files in the print job.
shared network printers: Printers on the network that
are accessible from more than one computer (this includes PCs and
time-sharing systems).
sheet: A physical piece of paper.
simplex printing: Printing on one side of each sheet
of paper.
soft font: PostScript font families that emulate the
physical font cartridges used in DIGITAL LN03 and DEClaser printers.
See also font cartridge.
SPD: Software Product Description. This document is
supplied with Compaq's software media and documentation kits to
describe the supported configurations and required products for running
the software.
TCP/IP: The Internet Transmission Control Protocol.
Tektronix 4010/4014 file: A data file created by
Tektronix 4010 and 4014 systems.
trailer page: An optional print job page that follows
each file printed. The trailer page is often printed even if the print
job fails, and contains messages to the user explaining the reason for
the print error.
translator: A program that changes the data syntax of
the user's file to a form that can be output to the printer.
tumble printing: A printing method in which the space
left for binding or hole-punching alternates along the two short edges
of a sheet. Right-hand pages are printed on the first side of a sheet,
so blank left-hand pages are inserted where necessary.
usable area: The area on the page where data may be
printed. When a page is scaled (enlarged or shrunk), it is scaled to
fit within the usable area, but the aspect ratio (ratio of height to
width) is preserved. If this leaves extra space on the edge of the
page, the page is centered in the usable area.
verso page: An even-numbered page in a book. In an open book, the verso page is always on the left. For example, page 2 is always a verso page. For a single sheet, the verso page is always the page on the back of the sheet. Compare with recto page.
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