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Re: unexpected unicode behavior
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Re: unexpected unicode behavior


  • Subject: Re: unexpected unicode behavior
  • From: Aki Inoue <email@hidden>
  • Date: Fri, 25 May 2007 09:23:08 -0700

Daniel,

radicals[i] is pointing an NSString object.
For logging an object's description, you can use %@.

So, in order to get something like "0x2F00	一",

You need "0x%X %@" as your format string.

Aki

Hi All,

I am trying to populate an array with Chinese radicals. Here's what I tried:

#define FIRST_RADICAL 0x2F00
#define LAST_RADICAL 0x2FD5
#define NUM_RADS ((LAST_RADICAL - FIRST_RADICAL) + 1)
....

	unichar radCodePoints[NUM_RADS];
	NSString *radicals[NUM_RADS];
	float	unicodeValue;

unicodeValue = FIRST_RADICAL;

for (i = 0; i <= NUM_RADS; i++)
{
radCodePoints[i] = unicodeValue;
radicals[i] = [NSString stringWithCharacters: &radCodePoints[i] length: 1];
NSLog(@"%C %C", radCodePoints[i], radicals[i]);
unicodeValue++;
}


The NSLog I used to check what was going on produced weird results. I was expecting something like:

0x2F00	一
0x2F01  ⼁
0x2F03  ⼂ etc.

but instead got:

⼀ 源
⼁ 祀
⼂ 祐
In other words, the first one was not the float value but rather the correct radical. I have no idea what the second character in each row is. Some mystery character.


So I changed the NSLog to

		NSLog(@"%X %S", radCodePoints[i], radicals[i]);

(where X is for hexadecimal and S is supposed to be for Unicode strings). Now I get the correct Unicode code points (0x2F00 etc.) but the second column is gibberish (ꁻ왴ސ for each row, and that doesn't change.) Can someone explain what I'm doing wrong?

Thanks.

Daniel_______________________________________________

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References: 
 >unexpected unicode behavior (From: Daniel Child <email@hidden>)

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