🚀 go-pugleaf

In article <2013@optilink.UUCP> cramer@optilink.UUCP (Clayton Cramer) writes:
>
>Does anyone know how to detect a lapse of time in PostScript?  I don't
>see a timer function of any sort, and looping for n iterations is highly
>dependent on the hardware.

The Adobe red book documents a bug in manual feeding, where a page that
you want to have printed on manually fed paper is printed on a page from the
tray if you tell it to manually feed to soon after another page has printed.
They also provide a workaround, which involves delaying for 5 seconds
before requesting manual feed.  Thus, there is a timer, and it's a variable,
not a function.  Here's the workaround, which demonstrates the use of the 
variable, and shows that the variable varies "behind the scenes".

usertime 5000 add		     % current usertime + 5000 ms
{dup usertime lt {pop exit} if} loop % wait for usertime to catch up
statusdict /manualfeed true put
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