PATHMac OS 8 and 9 Developer Documentation > Interapplication Communication > AppleScript for Scripters >

AppleScript Language Guide

   

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Defining and Calling Subroutines

A subroutine definition contains

• a template for calls to the subroutine
• optional variable declarations
• statements; among these can be a Return statement that when executed returns a value and exits the subroutine

You cannot nest subroutine definitions; that is, you cannot define a subroutine within a subroutine definition.

The way you call a subroutine is determined by the way the subroutine was defined:

• You must provide all the parameters specified in the definition.
• You must provide either labeled parameters or positional parameters, as specified in the definition.

The following sections describe how to define and call subroutines:

• Subroutines With Labeled Parameters
• Subroutines With Positional Parameters