This is a transformation that can be applied to the substitution of content for both macros and macro parameters.
This can be very useful if you wish to use the value in a rexx string which is surrounded by single quotes. Any occurance of the quote character will be doubled up and longish literals are broken up to try to keep regina happy. As the resultant value may still break regina rules if very long it is recommended that "$$RxVar" be used instead (where possible). I will be removing this transformation from PPWIZARD soon!