The DTD can be external, but you have to call setName: on it so that it is coordinated with the root of your XML document. For example, suppose your xml goes like this (ripped off the Internet, silly example):
<?xml version="1.0"?> <note> <to>Tove</to> <from>Jani</from> <heading>Reminder</heading> <body>Don't forget me this weekend!</body> </note> And the dtd goes like this: <!ELEMENT note (to, from, heading, body)> <!ELEMENT to (#PCDATA)> <!ELEMENT from (#PCDATA)> <!ELEMENT heading (#PCDATA)> <!ELEMENT body (#PCDATA)> Then this works: NSURL* xmlurl = [[NSBundle mainBundle] URLForResource:@"xml" withExtension:@"xml"]; NSXMLDocument* doc = [[NSXMLDocument alloc] initWithContentsOfURL:xmlurl options:0 error:nil]; NSURL* dtdurl = [[NSBundle mainBundle] URLForResource:@"dtd" withExtension:@"dtd"]; NSXMLDTD* dtd = [[NSXMLDTD alloc] initWithContentsOfURL:dtdurl options:0 error:nil]; [dtd setName:@"note"]; [doc setDTD:dtd]; BOOL valid = [doc validateAndReturnError:nil]; if (valid) NSLog(@"valid"); // "valid" This point was well covered in a previous thread: http://lists.apple.com/archives/cocoa-dev/2006/Sep/msg00464.html m. > Date: Tue, 19 Jan 2010 20:02:23 -0800 > From: Rainer Standke <li...@standke.com> > Subject: Validating NSXMLDocument against external DTD > > Hello, > > I am trying to validate an NSXMLDocument against an external DTD. Here > is what I do: > > NSError *error = nil; > > NSXMLDocument *doc = [[[NSXMLDocument alloc] > initWithXMLString:beamedXML options:NSXMLNodeOptionsNone error:&error] > autorelease]; > if (!doc) { > NSLog(@"error: %@", error); > } > > NSXMLElement *root = [doc rootElement]; > //NSLog(@"%@", [root description]); > > > //NSBundle *theBundle = [NSBundle mainBundle]; > //NSLog(@"%@", [theBundle description]); > > NSString *dtdPath = [[NSBundle mainBundle] > pathForResource:@"FCPXMLv5" ofType:@"dtd"]; > NSLog(@"dtdPath: %@", dtdPath); > > NSURL *dtdUrl = [NSURL fileURLWithPath:dtdPath isDirectory:NO]; > > error = nil; > NSXMLDTD *theDtd = [[[NSXMLDTD alloc] initWithContentsOfURL:dtdUrl > options:NSXMLNodePreserveWhitespace error:&error] autorelease]; > if (!theDtd) { > NSLog(@"error: %@", error); > } > //NSLog(@"theDtd: %@", theDtd); > > [doc setDTD:theDtd]; > > error = nil; > if (! [doc validateAndReturnError:&error]) { > NSLog(@"error: %@", error); > } > > And this is what I get: > > Error Domain=NSXMLParserErrorDomain Code=1 UserInfo=0xdc17a50 "no DTD > found! > > It seems to me that the DTD is expected to be found inside the XML > document. (The DTD seems to be created alright, since I can log it's > description.) In this case that not what I need or want. The Tree- > Based XML Programming Guide for Cocoa talks about external DTDs but I > can't find a clue as how to do this. Is it even possible? -- matt neuburg, phd = m...@tidbits.com, http://www.tidbits.com/matt/ pantes anthropoi tou eidenai oregontai phusei Among the 2007 MacTech Top 25, http://tinyurl.com/2rh4pf AppleScript: the Definitive Guide, 2nd edition http://www.tidbits.com/matt/default.html#applescriptthings Take Control of Exploring & Customizing Snow Leopard http://tinyurl.com/kufyy8 RubyFrontier! http://www.apeth.com/RubyFrontierDocs/default.html TidBITS, Mac news and reviews since 1990, http://www.tidbits.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
