Re: stringWithCString vs stringWithUTF8String
Re: stringWithCString vs stringWithUTF8String
- Subject: Re: stringWithCString vs stringWithUTF8String
- From: "Clark S. Cox III" <email@hidden>
- Date: Mon, 4 Nov 2002 13:29:04 -0500
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On Monday, Nov 4, 2002, at 13:09 US/Eastern, Brian Redman wrote:
I've got some email text I read from a pop server. According to the
header it's:
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 8bit
When I create an NSString from the char* text using
stringWithUTF8String I get nil.
Most likely, the text of the message contains some non-ASCII, ISOLatin
characters (i.e. accents, umlauts, etc.). this would make the text
illegal UTF-8.
If I use stringWithCString it works. I get an NSString containing
my text.
Are you sure? You may get text that is correct for all characters in
the ASCII range, but I would expect that special characters would be
garbled.
If I want to avoid stringWithCstring what method(s) should I be using
to create the NSString from this text? I read through the NSString
encoding material but I really don't get it.
Up until now replacing all my CStrings with UTF8Strings has worked
transparently.
This will work only for strings that have only characters in the range
of 0-127, as ASCII, UTF-8, and ISOLatin1 (as well as most other text
encodings) share the 0-127 range. However, once you find a character
greater than 127, the conversion will fail.
By the way the string is an email containing an ASP report saved as
ascii text.
No, it's not :)
It's an email containing an ASP report saved as ISO-8859-1 text (the
Content-Type header says so). The difference is important. Try this:
NSData *theData = ...; //The data containing the text to be decoded
NSString *theString = [[[NSString alloc] initWithData: theData
encoding: NSISOLatin1StringEncoding] autorelease];
- --
http://homepage.mac.com/clarkcox3/
email@hidden
Clark S. Cox, III
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