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The Datafile PD-CD 5
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Operators
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1994-07-08
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RiScript supports an extended subset of level I
operators of the PostScript language.
The following level I operators are not imple-
mented:
initclip
clippath
clip
eoclip
setscreen
currentscreen
nulldevice
This means that RiScript does not support clipping,
which is quite difficult for objects (it is a jump
over for bitmaps, but that's other business).
The following level II operators are implemented:
<<
>>
setcmykcolor
currentcmykcolor
undef
... and more (e.g. disk operations)
The following extra operators are implemented:
system
getenv
System will let you issue a CLI-command (where the
output will be discarded). It takes a string and
returns the exit value.
Getenv will let you retrieve system variables. It
takes two strings (the upper one is the name of
the variable and the lower one will be used to
return the value). It furthermore returns a boolean
value (was the variable known?).