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Re: NSArray to string and back problems
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Re: NSArray to string and back problems


  • Subject: Re: NSArray to string and back problems
  • From: Colin Cornaby <email@hidden>
  • Date: Wed, 23 Nov 2005 23:24:28 -0800

Right. I've also tried:

[NSPropertyListSerialization dataFromPropertyList:filtersToArchive format:NSPropertyListXMLFormat_v1_0 errorDescription:nil]

And that didn't work either, it simply return nil. (filtersToArchive is an array). I haven't gone through and debugged it yet with the errorDescription.

One of the requirements is the array has to be derived to a string, as a plist is.

On Nov 23, 2005, at 10:28 PM, Shawn Erickson wrote:


On Nov 23, 2005, at 10:03 PM, Colin Cornaby wrote:

I'm trying to convert an NSArray to a string and read it back at a later point. I call [myMutableArray description], store it away, and then later try to recreate the array using [arrayString propertyList].

However, upon trying to return an NSArray from the string I get:

2005-11-23 21:37:08.801 Catalyst[17518] XML parser error:
	Unexpected character ( at line 1
Old-style plist parser error:
	Expected terminating ')' for array at line 5

Here is the description string:

2005-11-23 21:38:37.992 Catalyst[17542] (
    {
        CIFilterName = CIHueAdjust;
        inputAngle = 1.475182809936707;
        inputImage = {CIImage [0 0 22 26]};
    }
)

Is this a bug? I searched CocoaBuilder and found a message detailing the exact same problem in 2001, but no one ever replied to it.

Description is not meant as a way to serialize (aka archive) an array.

Review NSCoding which NSArray implements...
<http://developer.apple.com/documentation/Cocoa/Reference/ Foundation/ObjC_classic/Protocols/NSCoding.html>


Then review...
<http://developer.apple.com/documentation/Cocoa/Conceptual/ Archiving/index.html#//apple_ref/doc/uid/10000047i>


Also consider...
<http://developer.apple.com/documentation/Cocoa/Reference/ Foundation/ObjC_classic/Classes/NSPropertyListSerialztion_index.html>


-Shawn

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  • Follow-Ups:
    • Re: NSArray to string and back problems
      • From: glenn andreas <email@hidden>
    • Re: NSArray to string and back problems
      • From: Colin Cornaby <email@hidden>
References: 
 >NSArray to string and back problems (From: Colin Cornaby <email@hidden>)
 >Re: NSArray to string and back problems (From: Shawn Erickson <email@hidden>)

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