Re: NSDictionary valueForKey: and @ character at start of NSString
Re: NSDictionary valueForKey: and @ character at start of NSString
- Subject: Re: NSDictionary valueForKey: and @ character at start of NSString
- From: Sam Stigler <email@hidden>
- Date: Tue, 15 May 2007 15:55:38 +1000
I think I see what you mean... what if you try hashing the string
that the user passed into some other string that NSDictionary will
like? Maybe by implementing your hash function as a two-way
NSValueTransformer? The hash function just has to come up with
strings that will be unique... I just checked, and there actually is
a [NSString hash] method that returns an int, but I'm not sure if it
fulfills the uniqueness requirement.
-Sam
http://www.stigler.org/sam/wordpress
On May 15, 2007, at 3:30 PM, Joe Goh wrote:
On 5/15/07, Sam Stigler <email@hidden> wrote:
Is there an escape character for "@"?
Escaping the character is irrelevant in this case because the @
character is already inside the NSString and NSDictionary valueForKey:
is explicitly checking for this character to invoke [super
valueForKey:] instead of objectForKey:
I could of course make this all work by just stripping the @ character
from the NSString, but as this is input from the user, its much better
to preserve it.
Nice try though Sam,
Regards,
Joe Goh
FunkeeMonk Technology
http://www.funkeemonk.com/
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