ODS proc template syntax

[deleted_user]

Please can someone explain where I can find documentation for this piece of syntax that appears in the excelXP tagset code ?
[pre]
define event set_yes_no_option_values;
eval $yes_no['yes'] 1;
eval $yes_no['on'] 1;
eval $yes_no['no'] 0;
eval $yes_no['off'] 0;
end;[/pre]

The manual SAS 9.1.3 Output Delivery System: User's Guide does not document the statement [pre] eval[/pre]
The syntax works on windows but causes me trouble on z/OS

Peter.C

[Tim_SAS]

The best doc for tagsets is here: http://support.sas.com/rnd/base/topics/odsmarkup/tagsets.html. You'll find an explanation of "eval" there.