does skill support if else if loop ?

Hi,

SKILL does not explicitly support an elseif branch but it can easily be achieved in terms of a nested if statement:

(if <condition> then
    <do something...>
else
   (if <someOtherCondition>
      <do something else...>
   )
)

Personally I would prefer   a case statement though...

(case
   (<condition1>
      ...do something
   )
   (<condition2>
      ...do something else
   )
   ...
   ...
   )
   (<conditionN>
      ...do whatever
   )
)

regards
Max

Here is an example of cond().  I use cond if I want somewhat arbitrary tests.  For example

x = -3.2

msg = "save"

cond(

    ( x > 1.0

        printf("x > 1.0 is true\n")

    )

    (msg == "open"

        printf("msg is \"open\"\n)

    )

    ( stringp(msg)

       printf("msg is a string that is not handled:  %L\n" msg)

   )

   (t

      printf("default action\n")

    )

)

in the above, the first matching condition and only the first matching condition is executed.

for the situation where each condition is checking the same variable but against different values, I use case or caseq as Max suggests.

-Dan