// //  CCEncoding.m //  CCFC // //  Created by xichen on 11-12-18. //  Copyright 2011 ccteam. All rights reserved. // #import "CCEncoding.h" @implementation CCEncoding // log all encodings + (void)logAllEncodings {
   const NSStringEncoding *encodings = [NSString availableStringEncodings];         NSMutableString *str = [[NSMutableString alloc] init];         NSStringEncoding encoding; while ((encoding = *encodings++) != 0)         {
                   [str appendFormat:@"%@ is %x\n", [NSString localizedNameOfStringEncoding:encoding], encoding];         }         NSLog(@"str is %@", str);         [str release];         NSLog(@"defaultCStringEncoding is %d", [NSString defaultCStringEncoding]); } // unicode                      --->                    UTF8 + (const char *)UnicodeToUTF8:(NSString *)src {
   return [src UTF8String]; } // UTF8                         --->                    unicode + (NSString *)UTF8ToUnicode:(const char *)src {
   return [NSString stringWithCString:src encoding:NSUTF8StringEncoding]; } // GB18030                      --->                    unicode + (NSString *)GB18030ToUnicode:(const char *)src {
           NSStringEncoding enc = CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000); return [NSString stringWithCString:src encoding:enc]; } // unicode                      --->                    GB18030 + (const char *)UnicodeToGB18030:(NSString *)src {
           NSStringEncoding enc = CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000); return [src cStringUsingEncoding:enc]; } // GB18030                      --->                    UTF8 // GB18030      --> Unicode             -->             UTF8 + (const char *)GB18030ToUTF8:(const char *)src {
           NSString *unicode = [self GB18030ToUnicode:src]; return [self UnicodeToUTF8:unicode]; } // UTF8                         --->                    GB18030 // UTF8         -->     Unicode         -->             GB18030 + (const char *)UTF8ToGB18030:(const char *)src {
           NSString *unicode = [self UTF8ToUnicode:src]; return [self UnicodeToGB18030:unicode]; } // Unicode cStr  to Unicode NSString // you should make sure the cStr begins with 0xFF, 0xFE(the unicode flag). + (NSString *)UnicodeCStrToUnicode:(const char *)cStr withLen:(int)len {
           NSData *data = [NSData dataWithBytes:cStr length:len]; return [[[NSString alloc] initWithData:data encoding:NSUnicodeStringEncoding] autorelease]; } @end

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