Adds a property to the property list named
The property is named
propertyname and has the value
If no property list named
plistname exists, then it is created.
If the property named
propertyname already has a value in the property list, then the value is replaced.
plistname input must be a word.
propertyname input may be word, list, or array.
Property names are compared in the same manner as EQUALP compares its inputs.
PPROP "plist1 "p1 1 PPROP "plist1 "p2 2 PPROP "plist2 "p1 10 PPROP "plist2 "p2 20 PPROP "plist2 [p 3] 30 SHOW GPROP "plist1 "p11
SHOW GPROP "plist1 "p22
SHOW GPROP "plist2 "p110
SHOW GPROP "plist2 "p220
SHOW GPROP "plist2 [p 3]30