Universal Binary - AppleScript utxt problem
Universal Binary - AppleScript utxt problem
- Subject: Universal Binary - AppleScript utxt problem
- From: Jerry Brace <email@hidden>
- Date: Wed, 25 Jan 2006 23:35:28 -0330
I am one step away from making my application Universal. Here is my
problem. One of the functions of the app communicates to iTunes via
AppleScript to tell it to play a particular playlist.
I have been converting the name of the playlist to AppleScript data
to solve any non-Roman character problems when referencing the name
in the AppleScript.
For example to play the "Library" playlist in iTunes:
tell application "iTunes"
play playlist «data utxt004C006900620072006100720079»
end tell
instead of:
tell application "iTunes"
play playlist "Library"
end tell
This has been working fine until I tried it on an Intel iMac. The
error returned is "can't make some data into the expected type" - I
assume this means that the data value isn't correctly being
translated back to "Library".
I am building the AppleScript in my code and converting the NSString
value of the Playlist name by using the following code:
static unichar UFI_LEFT_DOUBLE_ANGLE_QUOTATION_MARK = 0x00AB; // +
static unichar UFI_RIGHT_DOUBLE_ANGLE_QUOTATION_MARK = 0x00BB; // ;
static NSString *UFI_APPLESCRIPT_DATA_HEADER = @"data utxt";
@implementation NSString (UFIStringAdditions)
- (NSString *) toUCS2Digits {
NSMutableString *result = [[[NSMutableString alloc]
initWithCapacity: [self length]] autorelease];
unsigned int i=0;
for (i=0; i < [self length]; i++) {
unichar curr= [self characterAtIndex: i];
[result appendString: [NSString stringWithFormat: @"X",
curr]];
}
return result;
}
- (NSString *) toAppleScriptData {
return [NSString stringWithFormat: @"%@%@%@%@",
[NSString stringWithCharacters:
&UFI_LEFT_DOUBLE_ANGLE_QUOTATION_MARK length: 1],
UFI_APPLESCRIPT_DATA_HEADER,
[self toUCS2Digits],
[NSString stringWithCharacters:
&UFI_RIGHT_DOUBLE_ANGLE_QUOTATION_MARK length: 1]];
}
@end
Any help would be great! I've been doing some searching and I have
found references to utxt in Universal Binary documents but I have not
learned more from it yet.
Jerry
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