Adobe photoshop cs 2.0 User Guide

 Scripting basics     20

myFiles[1] = “clouds.gif”
myFiles[2] = “clouds.jpg”
myFiles[3] = “clouds.pdf”

Notice that each value is numbered. To use a value in a statement, you must include the number. The 
following statement opens the file clouds.gif:

open(myFiles[1])

The following sample includes the same statements in VBScript:

Dim myFiles (4)
myFiles(0) = “clouds.bmp”
myFiles(1) = “clouds.gif”
myFiles(2) = “clouds.jpg”
myFiles(3) = “clouds.pdf”

appRef.Open myFiles(1)

You can document the details of your script by including comments throughout the script. Because of the 
way they are formatted, comments are ignored by the scripting system as the script executes.

Comments help clarify (to humans, including yourself ) what your script does. It is generally considered 
good programming practice to document each bit of logic in your script. 

You use comments to:

●

Help you remember the purpose of a section of your script. 

●

Help you remember to include all the components you planned for your script. Unless you are an 
experienced programmer, you can review your script by reading through the comments more easily 
than you can by reading the code.

●

Help others understand your script. It’s possible that other people in your organization will need to use, 
update, or debug your script.

You can create the following types of comments:

●

Single-line: An entire line is a comment and therefore ignored when your script runs.

●

End-of-line: The line begins with executable code, then becomes a comment which is ignored when 
the script runs.

●

Multi-line: An entire block of text, which runs more than a single line in your script, is a comment.

The following sections demonstrate how to format comments in your scripts. 

To enter a single-line or end-of-line comment in an AppleScript, type two hyphens (--) before the 
comment. 

-- this is a single-line comment
set thisNumber to 10 --this is an end-of-line comment

To include a multi-line comment, start your comment with a left-parenthesis followed by an asterisk ( (* ) 
and end with an asterisk followed by a right-parenthesis ( *) ), as in the following example.

(* this is a 

 

multi-line comment *)