Question

When the following code is executed rather than "firstday" getting set to 1 as it should it is set to the value specified in the last $SET, even though only one should get evaluated.

   1. %CALC{"$SET(day,Monday)"}%
   2. %CALC{"$IF($EXACT($GET(day),Monday) == 1,$SET(firstday,1),not Monday)"}%
   3. %CALC{"$IF($EXACT($GET(day),Tuesday) == 1,$SET(firstday,2),not Tuesday)"}%
   4. %CALC{"$GET(day)"}%
   5. %CALC{"$GET(firstday)"}%

Produces this:

3. not Tuesday
4. Monday
5. 1

Any ideas why??? Thanks

Environment

-- ThomasDearden - 01 Mar 2004

Answer

This is a feature/bug of the current implementation. The Plugin simply evaluates all nested functions recursively, then does the IF/THEN/ELSE logic. That is, both THEN and ELSE are evaluated, but only one of them is returned. This is fine if you return a string, but fails if you want to set a variable conditionally.

I do not know of a workaround at this time. The Plugin logic could be changed to make it aware of the special IF case.

-- PeterThoeny - 04 Mar 2004

Just found out there is a way.

• Instead of: $IF(condition, $SET(var, foo), $SET(var, bar))
• Write: $SET(var, $IF(condition, foo, bar))

-- PeterThoeny - 04 Mar 2004