Statement

Description

action

Invokes an action routine.

action is

Defines an action routine.

call

Invokes a subroutine.

change to program

Transfers control from the current program to another program.

exit

Terminates the current program.

for each member loop

Specifies a set of action statements to be performed for each member of a class.

for loop

Specifies a set of action statements to be performed repeatedly, until an integer variable reaches a specified value.

if/then/else

Tests whether a specified condition is true or false, and allows you to perform actions based upon the result of the test.

include

Includes another source code file in the current program, at compile time.

invoke

Allows you to execute a Windows or PM application while another is running. In ESL for DOS, the invoke statement allows you to suspend ESL while you execute another application and return to ESL when it finishes.

leave loop

Allows you to branch out of a loop.

save program as

Creates a new program by saving the currently executing program with the current state of its objects and the current values of its local variables. This statement can be used in an action routine but not in a subroutine.

subroutine

Declares an ESL internal subroutine or an external subroutine.

subroutine is

Defines an ESL internal subroutine.

switch

Performs pattern matching on a specified string value.

while loop

Allows you to specify actions to be performed repeatedly, as long as a specified condition is true.