Inside Macintosh: AppleScript Language Guide / Part 3 - Appendixes

Appendix A - The Language at a Glance

Control Statements

Control statements are statements that control when and how other statements are executed. Table A-5 summarizes the control statements in the AppleScript English dialect. For more information about control statements, see Chapter 7, "Control Statements."

Control statements

Control statement	Syntax
tell	tell referenceToObject to statement
	tell referenceToObject [ statement ]... end [ tell ]
if	if Boolean then statement
	if Boolean [ then ] [ statement ]... [ else if Boolean [ then ] [ statement ]...]... [ else [ statement ]...] end [ if ]
repeat	repeat [ statement ]... end [ repeat ]
	repeat integer [ times ] [ statement ]... end [ repeat ]
	repeat while Boolean [ statement ]... end [ repeat ]
	repeat until Boolean [ statement ]... end [ repeat ]
	repeat with variable from integer to integer [ by integer ] [ statement ]... end [ repeat ]
	repeat with variable in list [ statement ]... end [ repeat ]
exit	exit
try	try [ statement ]... on error ¬ [ errorMessageVariable] ¬ [ number errorNumberVariable] ¬ [ from offendingObjectVariable ] ¬ [ partial result resultListVariable] ¬ [ to expectedTypeVariable ] [ global variable [, variable]...] [ local variable [, variable]...] [ statement ]... end [ error | try ]
considering	considering attribute [, attribute ... and attribute ] ÿ [ but ignoring attribute [, attribute ... and attribute ] ] [ statement ]... end considering
ignoring	ignoring attribute [, attribute ... and attribute ] ÿ [ but considering attribute [, attribute ... and attribute ] ] [ statement ]... end ignoring
with timeout	with timeout [ of ] integer second[s] [ statement ]... end [ timeout ]
with transaction	with transaction [ session ] [ statement ]... end [ transaction ]