JSON Parser for GNUstep runtime (Objective-c 1.0?)

Is there a JSON Parser Libr开发者_如何学Goary for GNUstep runtime (Objective-c 1.0)?

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As far as I know, there is actually a version of the NSJSONSerialization class, which was included in Mac OS X 10.7. See here:

http://svn.gna.org/svn/gnustep/libs/base/trunk/Source/NSJSONSerialization.m