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Re: Unicode canonical decomposed form and text encoding
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Re: Unicode canonical decomposed form and text encoding


  • Subject: Re: Unicode canonical decomposed form and text encoding
  • From: Renaud Boisjoly <email@hidden>
  • Date: Tue, 14 Jan 2003 16:08:06 -0500

Hi again

Ok, I think it will work, but I do have a last newbie question to ask if I can...

I've managed to convert from the UniChar result to an NSString, but I'm not clear on how to efficiently do the reverse. My original string is in an NSString and I guess I need to convert it to UniChar... but being pretty unexperienced, this looks like a mystery to me. Do I need to iterate through each character using characterAtIndex and add them to characters[] one by one? Should I use an NSScanner? Is there an immensely obvious way to do this and I'm just not seeing it (probably). I now its probably something I should know, but considering I've only been programming for a year or so except for stuff like AppleScript, I miss a lot of things.

My current idea is a for loop using characterAtIndex to add each character...

Thanks for your time if you can afford it.

Renaud

On Tuesday, January 14, 2003, at 02:39 PM, Aki Inoue wrote:

#import <Foundation/Foundation.h>

static UniChar characters[] = {0x00C0}; // LATIN CAPITAL LETTER A WITH GRAVE

#define MAX_BUFFER_LENGTH (100)

int main (int argc, const char * argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
UnicodeToTextInfo textInfo;
UnicodeMapping mapping = {CreateTextEncoding(kTextEncodingUnicodeDefault, kTextEncodingDefaultVariant, kUnicode16BitFormat), CreateTextEncoding(kTextEncodingUnicodeDefault, kUnicodeCanonicalDecompVariant, kUnicode16BitFormat), kUnicodeUseLatestMapping};
UniChar buffer[MAX_BUFFER_LENGTH];
ByteCount inputRead, outputLen;
OSStatus status;

status = CreateUnicodeToTextInfo(&mapping, &textInfo);
if (noErr != status) {
NSLog(@"Failed to create UnicodeToTextInfo");
exit(1);
}

status = ConvertFromUnicodeToText(textInfo, sizeof(characters), characters, kTECKeepInfoFixMask, 0, NULL, NULL, NULL, MAX_BUFFER_LENGTH * sizeof(UniChar), &inputRead, &outputLen, buffer);
if (noErr != status) {
NSLog(@"Failed to convert string");
exit(1);
}

DisposeUnicodeToTextInfo(&textInfo);

[pool release];
return 0;
}
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  • Follow-Ups:
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      • From: "Clark S. Cox III" <email@hidden>
References: 
 >Re: Unicode canonical decomposed form and text encoding (From: Aki Inoue <email@hidden>)

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