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Session command detection and arguments – IBM 1725 SLS User Manual

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Sessions

QMS 1725 SLS Print System User's Guide

D-6

Session Command Detection and Arguments

At the start of a document data stream, the printer examines the initial
bytes of data to see if it can match the %%Session: ... string. If the
string is found, the

mode and argument parameters are extracted to

determine what kind of session matching is desired. If the initial bytes
for the document do not match %%Session: ... or if there are errors
in the

mode and argument parameters to the command, the printer

will act as if the command is not present in the job and default to the
use of language-specific terminators to end subjobs for the remainder
of the document.

If a valid %%Session command is encountered, the printer pro-
cesses all of the data up to the end of that subjob. Once the subjob
terminates and more data arrives from the host computer, the printer
checks again to see if the subsequent data consists of a new
%%Session command to start the next subjob. Again, if the text at
the start of the subsequent subjob does not match %% Session: ...
or if there are errors in the

mode and argument parameters to the

command, the printer will act as if the command is not present in the
job and default to the use of language-specific terminators to end the
subjobs for the remainder of the document.

Parameter:

terminator

Default:

none

Range:

carriage return

line feed

carriage return plus line feed

Notes:

One or more ASCII space characters must be used to
separate each item. Any extra characters between the

argument

and the

terminator

are discarded.