On Wed, 25 Mar 2020 04:43:52 -0500, Bruce Hewson wrote:
>
>In a REXX exec I was building I stumbled onto:-
>
>Say 'MVSVAR'("SYMDEF",'testing &sysname in &sysplex')
>
>which provides an unexpected result
>
>&'TESTING SYSA IN PLEX01'.
>
>The symbols &SYSNAME and &SYSPLEX were replaced.
>And, sadly, the whole lot was uppercased.
>
>Couldn't find this behaviour documented.
>
I wonder how this is influenced by the statement in the Ref.:
The MVSVAR('SYMDEF',string) function goes through REXX substitution for
string first,
the result of which must be a 1-8 character symbolic-name specifying the
symbol that
has been defined in the SYMDEF statement. Any other values including REXX
delimiters
might cause unpredictable results.
... since the value of an unassigned symbol is its name, uppercased.
What happens if you provide values for the symbol-tokens?:
testing = 'xxxx'
in = 'yyyy'
Say 'MVSVAR'("SYMDEF",'testing &sysname in &sysplex')
... pretty weird regardless.
-- gil
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