On Fri, 29 Sep 2017 00:41:21 -0400, Peter Relson wrote: >>we need to query these symbolic names from an exit. > >really? care to share why? It is quite unusual to have to "query" a system >symbol. > >The case I usually think of is "I have a string, I support symbolics, I >call the symbol substitution service to do whatever it, according to its >documentation, chooses to do". >And if the customer used a symbol that they had failed to define, then >they get what they get, which is usually something that has bad syntax >because "&SYM" is not usually what a parser would be looking for. > Does that symbol substitution service indicate, via a return code, that it failed to find a definition for the symbol?
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