Caché ObjectScript Reference - InterSystems Documentation

Caché ObjectScript CommandsAfter Caché executes the argument, it returns control to the point immediately after theXECUTE argument.Each invocation of XECUTE places a new context frame on the call stack for your process.The $STACK special variable contains the current number of context frames on the callstack.ArgumentspcAn optional postconditional expression. If the postconditional expression is appended to thecommand, Caché executes the XECUTE command if the postconditional expression is true(evaluates to a non-zero numeric value). Caché does not execute the XECUTE command ifthe postconditional expression is false (evaluates to zero). If the postconditional expressionis appended to an argument, Caché evaluates the argument only if the postconditionalexpression is true (evaluates to a non-zero numeric value). If the postconditional expressionis false, Caché that argument and evaluates the next argument (if one exists) or the nextcommand. For further details, refer to Command Postconditional Expressions in Using CachéObjectScript.expressionA single expression or a comma separated list of expressions. Each expression must containat least one valid Caché ObjectScript command. The expression can evaluate to a null string(""). In this case, Caché performs no action and continues execution with the next XECUTEargument or the next command.ExamplesIn this example, the XECUTE command references the local variables x and y. x and y eachcontain a string literal consisting of three separate Caché ObjectScript commands thatXECUTE invokes.SET x="SET id=ans QUIT:ans="""" DO Idcheck"SET y="SET acct=num QUIT:acct="""" DO Actcheck"XECUTE x,yThe following example uses XECUTE with a $SELECT construction.XECUTE "SET A=$SELECT(A>100:B,1:D)"The following example executes the subroutine that is the value of A.SET A="WRITE ! FOR I=1:1:5 { WRITE ?I*5,I+1 }"XECUTE A172 Caché ObjectScript Reference