Re: NSString vs. encoding
Re: NSString vs. encoding
- Subject: Re: NSString vs. encoding
- From: Johan Kool <email@hidden>
- Date: Wed, 16 Sep 2009 11:46:14 -0700
Op 15 sep 2009, om 23:15 heeft Johan Kool het volgende geschreven:
Op 15 sep 2009, om 22:26 heeft Stephen J. Butler het volgende
geschreven:
On Wed, Sep 16, 2009 at 12:10 AM, Johan Kool <email@hidden>
wrote:
Op 15 sep 2009, om 21:50 heeft Jens Alfke het volgende geschreven:
On Sep 15, 2009, at 9:04 PM, Johan Kool wrote:
NSString *stringA = @"hello\040world";
NSString *stringB = [NSString stringWithUTF8String:"hello
\040world"] ;
I'm confused. '\040' is a regular ascii space character (040 = 32
decimal). What's unusual about either of these strings?
Sorry, I was confused by what the actual content of the NSString
was in my
app. It turned out it was @"hello\\040world". I would still like
to get that
to print as "hello world" though, not "hello\040world".
Well... that's not UTF-8, for sure. You might call it ANSI C string
encoding. Looks like Foundation can handle escapes like this as
NSNonLossyASCIIStringEncoding.
Thanks! That was the nudge in the right direction. The code below
gave me what I was after.
NSString *stringA = @"hello\\040world";
NSData *data = [stringA dataUsingEncoding:NSUTF8StringEncoding];
NSLog(@"%@", [[[NSString alloc] initWithData:data
encoding:NSNonLossyASCIIStringEncoding] autorelease]);
Too early... turns out it only works for spaces (\040). For other
special characters I still have an encoding issue, that I can't seem
to work out.
NSString *stringA = @"J\\303\\270ha\\314\\212n\\040i\\314\\210s\\040Li\
\314\\200e\\314\\201\\306\\222";
NSLog(@"stringA %@ (expected Jøhån ïs Lìéƒ)", stringA);
NSData *data = [stringA dataUsingEncoding:NSASCIIStringEncoding];
NSString *stringB = [[[NSString alloc] initWithData:data
encoding:NSNonLossyASCIIStringEncoding] autorelease];
NSLog(@"stringB %@ (expected Jøhån ïs Lìéƒ)", stringB);
> stringA J\303\270ha\314\212n\040i\314\210s\040Li\314\200e
\314\201\306\222 (expected Jøhån ïs Lìéƒ)
> stringB JøhaÌn iÌs LiÌeÌÆ (expected Jøhån ïs
Lìéƒ)
Johan
---
http://www.johankool.nl/
KOOLISTOV - Software for Mac and iPhone
http://www.koolistov.net/
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