On Sun, Apr 12, 2009 at 6:01 PM, John Joyce
<dangerwillrobinsondan...@gmail.com> wrote:
> Is there an easy way to take input (user or file based) at runtime and
> convert unicode strings such as \u8D64 (UTF8 character) or a whole series of
> these to the human-readable characters they represent?
> I imagine I should be using NSScanner, but is there not some simple function
> or method to lookup and return the character as it should be represented?
> Happy to RTFM, just need a pointer to the docs I should be looking at.
Note that those are just unicode code points, not UTF-8 "characters",
whatever that would be. There is nothing built-in that I know of to
convert these.
You can search the string using one of the built-in methods, and then
read the number with NSScanner's -scanHexInt:. If you know that your
code points will always be no more than 4 digits (16 bits), which I
think would have to be the case because otherwise you wouldn't know
where to stop scanning the number, then you can make a string out of
it easily using the %C format specifier, like so:
unsigned value;
if([scanner scanHexInt:&value]) {
NSString *str = [NSString stringWithFormat:@"%C", value];
... put str back into the original string ...
}
else // couldn't parse the value
Mike
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