MAX parsing (Re: TBXML question)

[Marcel Weiher]

On Jan 13, 2012, at 15:23 , Eric E. Dolecki wrote:

> I have XML like this:
> 
> <xml version="1.0" encoding="UTF-8"?>
> <users>
>    <user name="Eric Dolecki">
>        <playlist name="Iron Maiden" source="Spotify"/>
>        <playlist name="Kate Bush" source="Pandora"/>
>    </user>
> </users>

Don't know much about TBXML, but with MAX, the following code parses the file 
(including model classes and scaffolding):

---------- snip ----
#import <MPWXmlKit/MPWMAXParser.h>

@interface User:NSObject 
{
        NSString *name;
        NSArray  *playlist;
}
-initWithName:(NSString*)newName playlist:(NSArray*)newPlaylist;

@end
@implementation User
-initWithName:(NSString*)newName playlist:(NSArray*)newPlaylist
{
    if ( (self=[super init]) ) {
        name=[newName retain];
        playlist=[newPlaylist retain];
    } 
    return self;
}

-description
{
    return [NSString stringWithFormat:@"User: '%@' with songs: 
%@",name,playlist];
}

-(void)dealloc
{
    [name release];
    [playlist release];
    [super dealloc];
}
@end

@interface Song : NSObject
{
    NSString *name;
    NSString *source;
}

-initWithName:(NSString*)newName source:(NSString*)newSource;
@end
@implementation Song
-initWithName:(NSString*)newName source:(NSString*)newSource
{
    if ( (self=[super init]) ) {
        name=[newName retain];
        source=[newSource retain];
    } 
    return self;
}

-description
{
    return [NSString stringWithFormat:@"Song: '%@' with source: 
%@",name,source];
}

-(void)dealloc
{
    [name release];
    [source release];
    [super dealloc];
}

@end

@interface SongParser : NSObject {
   id users;
}
@end

@implementation SongParser 

-usersElement:children attributes:attrs parser:parser
{
    users= [[children allValues] retain];
    return nil;
}

-userElement:children attributes:attributes parser:parser
{
    return [[User alloc] initWithName:[attributes objectForKey:@"name"] 
                          playlist:[children allValues]];
}


-playlistElement:children attributes:attributes parser:parser
{
    return [[Song alloc] initWithName:[attributes objectForKey:@"name"] 
                          source:[attributes objectForKey:@"source"]];
}

-parseSongs:(NSString*)path
{
    NSData *xmldata=[NSData dataWithContentsOfMappedFile:path];
    MPWMAXParser *parser=[MPWMAXParser parser];
    [parser setHandler:self forElements:[NSArray 
arrayWithObjects:@"users",@"user",@"playlist",nil] inNamespace:nil prefix:@"" 
map:nil];
    [parser parse:xmldata];
    return users;
}

@end


int main( int argc, char *argv[] ) {
    [NSAutoreleasePool new];
    id result=[[[SongParser new] autorelease] parseSongs:[NSString 
stringWithUTF8String:argv[1]]];
    NSLog(@"result: %@",result);
    return 0;
}
----------------- snip ---------------

marcel@localhost[XML]cc -Wall -o maxparse maxparse.m -framework MPWXmlKit 
-framework MPWFoundation -framework Foundation && ./maxparse tbxml.xml 
2012-01-14 12:28:19.230 maxparse[33421:507] result: (
    "User: 'Eric Dolecki' with songs: (\n    \"Song: 'Iron Maiden' with source: 
Spotify\",\n    \"Song: 'Kate Bush' with source: Pandora\"\n)"
)





_______________________________________________

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