Script Debugger is a Macintosh computer source code editor and debugging environment for the AppleScript programming language, and other languages based on Apple Inc.' S Open Scripting Architecture.It is a product of Late Night Software. Script Debugger version 1.0 was released in 1995 by Mark Alldritt as a third-party alternative to Apple's freeware application, Script Editor. Script Debugger 4.0 was released on February 9, 2006. Script Debugger is an award-winning AppleScript authoring environment. New features include:. Script Debugger can now invoke the re-open handler from the Event History menu. Script Debugger can now invoke Folder Actions handlers from the Event History menu.
- Script Debugger 7 0 7 – Applescript Authoring Environment Mcq Pdf
- Script Debugger 7 0 7 – Applescript Authoring Environment Mcq Questions
- Script Debugger 7 0 7 – Applescript Authoring Environment Mcq Key
We are pleased to announce the release of Script Debugger 7.0.4. Script Debugger 7.0.4 is a free maintenance release addressing a series of issues that came to light following the release of Script Debugger 7.0. This release also introduces a series of changes to improve compatibility with macOS Mojave (10.14).
Changes in the 7.0.4 release
- 1139 Updated code-completion data for Mojave.
- 1137 Mojave: The Scripting Additions dictionary only displays additions in the
/System/Library/ScriptingAdditions
on Mojave systems since AppleScript no longer loads Scripting Additions from other locations (/Library/ScriptingAdditions
and~/Library/ScriptingAdditions
). When SIP is disabled, Script Debugger displays scripting additions from all standard locations. - 1133 Mojave: If you accidentally decline to allow Script Debugger access to a particular application, an alert appears whenever the explorer is used to access that application explaining that the application is inaccessible and that you must use the System Preferences app to grant access to Script Debugger.
- 1119 Fixed issue where clicking on the
Time/Duration
column heading in the Event Log could cause a crash. Clicking will now sort events by duration, and execution order can be restored by clicking on theApple Event
column heading. - 1113 The scripting
selection
property returned character ranges that could, in some cases, not accurately reflect AppleScript lengths. This has been fixed. A newdocument
andscript window
property,selection ASObjC range
, returns the selection as a Cocoa range, suitable for those using AppleScriptObjC. The new property accepts both a simple list of two integers as well as a record in the form {location:x, |length|:y}. It returns a list, or the record form if you useget selection ASObjC range as record
. - 1117 Resolved a problem where duplicate code signing identities could appear in Script Debugger’s Code Signing menus.
- 1122 Fixed issue where entering extensions in the Resources Tab could trigger a crash.
- 1126 Script Debugger Lite users are able to create viewer windows for values appearing in the variables pane. This makes looking at long strings and list or record structures easier.
- 1115 Resolved a series of issues with leak tracking and display. Script Debugger should now properly track
open for access
/close access
pairs when a file path is passed toclose access
. Possible crashes displaying leaks have also been resolved. - 1116 Fixed a regression where bundled frameworks were not included when performing a
save as
orexport
. - 1132 Addressed a problem where changing the AppleScript:// URL scheme preference did not operate properly.
- 1130 Improved command-click handling of URLs to avoid attempting to open invalid URLs, resulting in an alert asking to locate a suitable application in the App Store.
- 1123 Fixes regression where clippings searches ignored the standard set. Also fixes the issue where double-clicking on found clippings failed to insert them.
- 1118 Removed unnecessary alerts about persistent properties when saving code-signed bundles and applets.
- 925 Resolved a crash that occurs when a script sends an AppleEvent with a timeout of 0 seconds.
Using Handlers/Functions
Collections of script statements that can be invoked by name are referred to as handlers in AppleScript, functions or methods in JavaScript, and subroutines in some other languages. Throughout this document, these terms are used interchangeably.
Handlers are generally written to perform a task multiple times throughout a script, such as displaying an alert, writing text to a file, or creating an email message. Instead of inserting the same code over and over, you write it once and give it a name. You can name a handler whatever you like as long as the name contains no special characters, such as punctuation, or spaces, and isn’t a reserved language term. You then
call
, or evoke, a handler whenever necessary by referring to it by name. Each time you do, any code in the handler runs. Handlers can optionally be written to receive information as input for processing (parameters), and can return information as output (result or return value). Handlers provide a way to organize your code by breaking it up into smaller, manageable, modular chunks. This can be useful when troubleshooting; you can narrow in on a single handler to resolve a problem, rather than sorting through a long, complex script. It also makes future script updates easier, as you can change behavior in one place to affect an entire script.
Note
AppleScript handlers are generally placed at the end of a script, while in JavaScript, they’re usually placed at the top.
AppleScript Handlers
In AppleScript, a handler begins with the word
on
or to
, followed by the handler name and its parameters, if any. It ends with the word end
, followed by the handler name. AppleScript handlers can be written with positional, labeled, or interleaved parameters.Listing 13-1 shows a simple one-line script that displays a hypothetical error message, which you might want to display numerous times as a script runs.
APPLESCRIPT
Listing 13-1AppleScript: A simple script that displays an error messagedisplay dialog 'The script encountered a problem.'
In Listing 13-1, the code from Listing 13-1 has been converted to a handler named
displayError
, which has no parameters.APPLESCRIPT
Listing 13-2AppleScript: A simple handler that displays an error messageon displayError()
display dialog 'The script encountered a problem.'
end displayError
Listing 13-3 shows a variation of the handler in Listing 13-1, which uses the
to
prefix instead of on
. Either syntax is acceptable.APPLESCRIPT
Listing 13-3AppleScript: A variation of a simple handler that displays an error messageto displayError()
display dialog 'The script encountered a problem.'
end displayError
You can now call the
displayError
handler any time you want to display an error, as shown in Listing 13-4.APPLESCRIPT
Listing 13-4AppleScript: Calling a simple handler to display an error messagetry
-- Do something
on error
-- Notify the user that there's a problem
displayError()
end try
try
-- Do something else
on error
-- Notify the user that there's a problem
displayError()
end try
For detailed information about AppleScript handlers, see About Handlers and Handler Reference in AppleScript Language Guide.
Note
To call a handler from within a
tell
statement, you must use the reserved words of me
or my
, as shown in Listing 13-5. APPLESCRIPT
Script Debugger 7 0 7 – Applescript Authoring Environment Mcq Pdf
Listing 13-5AppleScript: Calling a handler from within a tell statementtell application 'Finder'
try
-- Do something
on error
-- Notify the user that there's a problem
displayError() of me
end try
end tell
tell application 'Finder'
try
-- Do something else
on error
-- Notify the user that there's a problem
my displayError()
end try
end tell
AppleScript Handlers with Positional Parameters
Positional parameters are a series of comma-separated variables, contained within parentheses, following the handler name. In Listing 13-6, the
displayError
handler from Listing 13-1 has been updated to accept two positional parameters—an error message and a list of buttons to display.APPLESCRIPT
Listing 13-6AppleScript: A handler that displays a specified error message with custom buttonson displayError(theErrorMessage, theButtons)
display dialog theErrorMessage buttons theButtons
end displayError
To call the handler, refer to it by name and provide a value for each positional parameter, as shown in Listing 13-7. The order of these values should match the parameter positions in the handler definition.
APPLESCRIPT
Listing 13-7AppleScript: Calling a handler to display a specified error message with custom buttonsdisplayError('There's not enough available space. Would you like to continue?', {'Don't Continue', 'Continue'})
For additional information about this style of handler, see Handlers with Positional Parameters in AppleScript Language Guide.
AppleScript Handlers with Interleaved Parameters
Interleaved parameters are a variation of positional parameters, in which the parameter name is split into pieces and interleaved with parameters using colons and spaces. Listing 13-8 shows how the handler from Listing 13-6 can be represented using interleaved parameters.
APPLESCRIPT
Listing 13-8AppleScript: Example of a handler with interleaved parameterstell me to displayError:'There's not enough available space. Would you like to continue?' withButtons:{'Don't Continue', 'Continue'}
on displayError:theErrorMessage withButtons:theButtons
display dialog theErrorMessage buttons theButtons
end displayError:withButtons:
Interleaved parameters resemble Objective-C syntax. Therefore, they are typically used to call Objective-C methods in AppleScriptObjC scripts.
Objective-C to AppleScript Quick Translation Guide discusses interleaved parameter use in AppleScriptObjC scripts. For additional information about this style of handler, see Handlers with Interleaved Parameters in AppleScript Language Guide.
AppleScript Handlers with Labeled Parameters
![Debugger Debugger](https://i2.wp.com/www.macbed.com/wp-content/uploads/2017/09/60121.png?resize=256%2C256&ssl=1)
AppleScript also supports labeled parameters, although this style is rarely used when defining custom handlers. Most often, it’s a style used for event handlers. See Event Handlers. Listing 13-9 shows how the
displayError
handler might appear if it were written using the labeled parameter style.APPLESCRIPT
Listing 13-9AppleScript: Example of a handler with labeled parametersdisplay of 'There's not enough available space. Would you like to continue?' over {'Don't Continue', 'Continue'}
to display of theErrorMessage over theButtons
display dialog theErrorMessage buttons theButtons
end display
![Script debugger 7 0 7 – applescript authoring environment mcq questions Script debugger 7 0 7 – applescript authoring environment mcq questions](https://farm2.staticflickr.com/1707/24820772734_82220d81e6_b.jpg)
For additional information about this style of handler, see Handlers with Labeled Parameters in AppleScript Language Guide.
JavaScript Functions
In JavaScript, a function name is preceded by the word
function
and followed by a list of parameters, if any. The function’s contents are contained within curly braces ({ .. }
).Listing 13-10 shows a simple script that displays a hypothetical error message.
JAVASCRIPT
Listing 13-10JavaScript: A simple function that displays an error messagevar app = Application.currentApplication()
app.includeStandardAdditions = true
function displayError() {
app.displayDialog('The script encountered a problem.')
}
You can now call the
displayError
function any time you want to display an error, as shown in Listing 13-11.JAVASCRIPT
Listing 13-11JavaScript: Calling a simple function to display an error messagetry {
// Do something
} catch (error) {
// Notify the user that there's a problem
displayError()
}
try {
// Do something else
} catch (error) {
// Notify the user that there's a problem
displayError()
}
Using Parameters
JavaScript functions are written with positional parameters, comma-separated variables, contained within parentheses, following the function name. In Listing 13-12, the
displayError
function from Listing 13-10 has been updated to accept two positional parameters—an error message and a list of buttons to display.JAVASCRIPT
Listing 13-12JavaScript: A function that displays a specified error message with custom buttonsvar app = Application.currentApplication()
app.includeStandardAdditions = true
function displayError(errorMessage, buttons) {
app.displayDialog(errorMessage, {
buttons: buttons
})
}
To call the function, refer to it by name and provide a value for each positional parameter, as shown in Listing 13-13. The order of these values should match the parameter positions in the function definition.
JAVASCRIPT
Listing 13-13JavaScript: Calling a function to display a specified error message with custom buttonsdisplayError('There's not enough available space. Would you like to continue?', ['Don't Continue', 'Continue'])
Exiting Handlers and Returning a Result
Often, handlers are used to process information and produce a result for further processing. Blocs 3 4 4 cyl. To enable this functionality, add the
return
command, followed by a value to provide, to the handler. In Listing 13-14 and Listing 13-15, the displayError
handler returns a Boolean value, indicating whether processing should continue after an error has occurred.Anytoiso pro 3 7 0 download free. APPLESCRIPT
Listing 13-14AppleScript: Returning a value from a handlerset shouldContinueProcessing to displayError('There's not enough available space. Would you like to continue?')
if shouldContinueProcessing = true then
-- Continue processing
else
-- Stop processing
end if
on displayError(theErrorMessage)
set theResponse to display dialog theErrorMessage buttons {'Don't Continue', 'Continue'} default button 'Continue'
set theButtonChoice to button returned of theResponse
if theButtonChoice = 'Continue' then
return true
else
return false
end if
end displayError
JAVASCRIPT
Listing 13-15JavaScript: Returning a value from a functionvar app = Application.currentApplication()
app.includeStandardAdditions = true
function displayError(errorMessage) {
var response = app.displayDialog(errorMessage, {
buttons: ['Don't Continue', 'Continue'],
defaultButton: 'Continue'
})
var buttonChoice = response.buttonReturned
if (buttonChoice 'Continue')
return true
else
return false
}
var shouldContinueProcessing = displayError('There's not enough available space. Would you like to continue?')
if (shouldContinueProcessing) {
// Continue processing
} else {
// Stop processing
}
Note
You can return a value at any time within a handler, not just at the end.
Event Handlers
Some apps, including scripts themselves, can call handlers when certain events occur, such as when launched or quit. In Mail, you can set up a rule to look for incoming emails matching certain criteria. When a matching email is detected, Mail can call a handler in a specified script to process the email. Handlers like these are considered event handlers or command handlers.
Listing 13-16 shows an example of a Mail rule event handler. It receives any detected messages as input, and can loop through them to process them.
APPLESCRIPT
Listing 13-16AppleScript: Example of a Mail rule event handlerusing terms from application 'Mail'
on perform mail action with messages theDetectedMessages for rule theRule
tell application 'Mail'
set theMessageCount to count of theDetectedMessages
repeat with a from 1 to theMessageCount
set theCurrentMessage to item a of theDetectedMessages
-- Process the message
end repeat
end tell
end perform mail action with messages
end using terms from
Script Event Handlers
As previously mentioned, scripts can contain event handlers too. These handlers run when certain events occur.
Run Handlers
The
run
event handler is called when a script runs. By default, any executable code at the top level of a script—that is, not contained within a handler or script
object—is considered to be contained within an implicit run
handler. See Listing 13-17 and Listing 13-18.APPLESCRIPT
run
handlerJAVASCRIPT
Listing 13-18JavaScript: Example of an implicitly defined run
functionvar app = Application.currentApplication()
app.includeStandardAdditions = true
app.displayDialog('The script is running.')
Optionally, the
run
handler can be explicitly defined. Listing 13-19 and Listing 13-20 produce the exact same behavior as Listing 13-17 and Listing 13-18.APPLESCRIPT
Listing 13-19AppleScript: Example of an explicitly defined run
handleron run
display dialog 'The script is running.'
end run
JAVASCRIPT
Listing 13-20JavaScript: Example of an explicitly defined run
functionfunction run() {
var app = Application.currentApplication()
app.includeStandardAdditions = true
app.displayDialog('The script is running.')
}
Quit Handlers
The
quit
event handler is optional, and is called when a script app quits. Use this as an opportunity to perform cleanup tasks, if necessary, such as removing temporary folders or logging progress. Listing 13-21 and Listing 13-22 demonstrate the use of a quit
handler.APPLESCRIPT
Listing 13-21AppleScript: Example of a quit
handleron quit
display dialog 'The script is quitting.'
end quit
JAVASCRIPT
Listing 13-22JavaScript: Example of a quit
functionvar app = Application.currentApplication()
app.includeStandardAdditions = true
function quit() {
app.displayDialog('The script is quitting.')
}
Open Handlers
The inclusion of an
open
handler or openDocuments
method in a script app automatically makes the app drag-and-droppable. When launched in this way, the open
handler receives a dropped list of files or folders as a direct parameter, as shown in Listing 13-23 and Listing 13-24.APPLESCRIPT
Listing 13-23AppleScript: Structure of an open
handleron open theDroppedItems
-- Process the dropped items here
end open
JAVASCRIPT
Listing 13-24JavaScript: Structure of an openDocuments
functionfunction openDocuments(droppedItems) {
// Process the dropped items here
}
For detailed information about using the
open
handler to create drop scripts, see Processing Dropped Files and Folders.Idle Handlers
When saving a script, you can optionally save it as a stay-open application. See Figure 13-1. In a stay-open script app, the script stays open after the
run
handler completes, and an idle
handler is called every 30 seconds. Use the idle
handler to perform periodic processing tasks, such as checking a watched folder for new files to process. To change the duration between idle
calls, return a new duration, in seconds, as the result of the idle
handler. Listing 13-25 and Listing 13-26 demonstrate an idle
handler that delays for five seconds between executions.APPLESCRIPT
Listing 13-25AppleScript: Example of an idle
handleron idle
display dialog 'The script is idling.'
return 5
end idle
Script Debugger 7 0 7 – Applescript Authoring Environment Mcq Questions
JAVASCRIPT
Script Debugger 7 0 7 – Applescript Authoring Environment Mcq Key
Listing 13-26JavaScript: Example of anidle
functionvar app = Application.currentApplication()
app.includeStandardAdditions = true
function idle() {
app.displayDialog('The script is idling.')
return 5
}
For information about using the
idle
handler for folder watching, see Watching Folders.Copyright © 2018 Apple Inc. All rights reserved. Terms of Use | Privacy Policy | Updated: 2016-06-13