#5590 - Part 1 - Luc DUPUIS - Éditions Chantraine

Comment interpréter les textes "Info PostScript" qui se créent après une impression ? Y a-t-il une bible du PostScript ou plus simplement un guide sommaire pour la traduction des situations les plus courantes ?

*** Certaines applications, telles que Adobe PageMaker par exemple, contiennent une description assez détaillée des erreurs PostScript possibles dans leur fonction d'aide. Pour le reste, je ne connais pas de manuel PostScript spécifique avec une description des erreurs, mais j'ai trouvé un site sur Internet (http://www.trenton.edu/~artmain/cgart/notes/postscript.html), qui donne un aperçu des erreurs possibles avec quelques solutions (avec une liste des erreurs où chaque erreur est un lien vers un page explicative à part) :

<< Postscript Errors

What is PostScript?

PostScript is a programming and page-description language, developed by
Adobe Systems, that provides a method for representing pages of printable
information. PostScript contains both special purpose graphics commands and
general programming commands that allow a page to be described in a way that
does not depend on the specifics of the intended output device.
Typically, a page is created in an application, which may provide text
processing, such as Microsoft Word or WordPerfect, or graphics processing,
such as Aldus' FreeHand or Adobe Illustrator. When you choose a PostScript
device as the output, these applications convert the page that you see on
your display into a series of PostScript language commands that will cause
the page you have created to be printed on any PostScript or
PostScript-compatible output device without further changes. These commands
are sent, generally over a communications desired output device. The output
device typically contains a computer within it that executes a program,
called X PostScript interpreter, that transforms these commands necessary
device control commands which render the the output medium and output the
page when complete. The PostScript language is independent of any specific
device characteristics, which means that in so far as possible, a page will
print equally correctly on 300 dot-per- inch laser printers and on 2500
dot-per-inch phototypesetters. The PostScript interpreter in each device
translates the PostScript commands as required to create the desired output,
without any concern or intervention on the part of the user.

Finding and Fixing Errors

You begin the process of finding and fixing the error in your document by
following the steps given in the section of this chapter entitled "General
Error Resolution". This section gives you some general ideas about how to
diagnose and A, correct errors that occur in your document. These steps will
help you isolate and understand the problem; very often, following these
steps will correct the problem. If these steps do not correct your problem,
you should then proceed to use the Error Dictionary in the next section of
this chapter. The second section contains an alphabetical dictionary of
every possible PostScript error. The headings in this section are at the top
of each page that begins an entry, and correspond to the error name shown on
the printed PinPoint error report next to the label ERROR:.
Each error name is further subdivided by the offending command that caused
the error. The offending command is shown on the printed PinPoint error
report next to the label

OFFENDING COMMAND:. Each of these subentries shows you two things. First, it
tells you What happened to cause the error. This tells you in detail about
what actual conditions cause the given error. There may be multiple causes,
in which case each cause is discussed in detail, with an explanation of how
you can distinguish among them. Second, each entry tells you What you can do
to fix the error. When an error has a simple solution, we present it here. A
simple solution, in our definition, is one that you can make through your
application software, without changing or understanding the PostScript code.
This alone can save you hours of work and frustration. The average user, who
is not a PostScript programmer, may not be able to resolve some of the more
uncommon errors that occur. Even in such cases, however, the printed
PinPoint Error report will be very helpful. For the errors that cannot be
resolved by an average user, the PinPoint Error Reporter output page will
allow application support personnel to provide speedy analysis and
correction of the problem. Finally, for PostScript programmers, the
dictionary entry often points out common PostScript errors and suggests
corrections to help you correct your code; of course, the Error Reporter
output is extremely valuable in such cases.

configurationerror
dictfull
dictstackoverflow
dictstackunderflow
execstackoverflow
invalidaccess
invalidcontext
invalidexit
invalidfileaccess
invalidfont
invalidid
invalidrestore
ioerror
limitcheck
nocurrentpoint
rangecheck
stackoverflow
stackunderflow
syntaxerror
timeout
typecheck
undefined
undefinedfilename
undefinedresource
undefinedresult
unmatchedmark
unregistered
VMerror >>

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