Re: searching a Unicode string in a text
Re: searching a Unicode string in a text
- Subject: Re: searching a Unicode string in a text
- From: Ondra Cada <email@hidden>
- Date: Fri, 20 Sep 2002 12:52:27 +0200
On Friday, September 20, 2002, at 11:36 , Arthur Clemens wrote:
The compiler can't read Unicode char escapes, and that's that. Search
archives, this was extensively discussed already.
Well, if you know the words with which to search its easier.
"Unicode"? I have extremely little experience myself: living in an obscure
socialistic state, I can't afford a leased line, and don't online search
much, lest my dialup went prohibitively expensive.
Also that's why I've continued:
If the string is one-char and fixed, the best solution would probably
be stringWithCharacters: and a unichar variable; otherwise, the best
way to go are localizable strings.
Ok thanks
so I can use
unichar unicharCode = 0x278A; // DINGBAT NEGATIVE CIRCLED
SANS-SERIF DIGIT ONE
NSString *unicharString = [NSString
stringWithCharacters:&unicharCode length:1];
NSRange range = [string rangeOfString:unicharString];
Yup. Should work right, does it?
if( range.location == 0 && range.length == [string length] ) return
[[[NSString alloc] initWithString:@"1"] autorelease];
I don't quite follow this part.
- if you just wanted to know whether the string is at the beginning
("range.location==0"), you can use hasPrefix: instead of rangeOfString:;
- if you just wanted to know whether the string was found anywhere, the
appropriate test is "range.length>0" (or range.location!=NSNotFound; both
work as well, I prefer the former myself);
- returning a string for a de-facto boolean looks strange, but still it
might be a good design (I don't know your app). Nevertheless...
- *generally*, instead of the alloc/init/autorelease pattern you should
use the appropriate convenience constructor, ie. "return [NSString
stringWithString:...];"
- but in this particular case you should return just the static instance:
"return @"1";"
---
Ondra Cada
OCSoftware: email@hidden
http://www.ocs.cz
private email@hidden
http://www.ocs.cz/oc
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