hfs_japanese/hfs_japanese.kmodproj/hfs_japanese.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.2 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 #include <mach/mach_types.h>
  24 #include <mach/kmod.h>
  25
  26 #include "CFStub.h"
  27 #include <hfs/hfs_encodings.h>
  28
  29
  30 int
  31 MacJapaneseToUnicode(Str31 hfs_str, UniChar *uni_str, UniCharCount maxCharLen, UniCharCount *usedCharLen)
  32 {
  33         UInt32 processedChars;
  34
  35         processedChars = __CFFromMacJapanese(kCFStringEncodingUseCanonical | kCFStringEncodingUseHFSPlusCanonical,
  36                                         &hfs_str[1],
  37                                         hfs_str[0],
  38                                         uni_str,
  39                                         maxCharLen,
  40                                         usedCharLen);
  41
  42         if (processedChars == (UInt32)hfs_str[0])
  43                 return (0);
  44         else
  45                 return (-1);
  46 }
  47
  48 int
  49 UnicodeToMacJapanese(UniChar *uni_str, UniCharCount unicodeChars, Str31 hfs_str)
  50 {
  51         UniCharCount srcCharsUsed;
  52         UInt32 usedByteLen = 0;
  53
  54         srcCharsUsed = __CFToMacJapanese(kCFStringEncodingComposeCombinings | kCFStringEncodingUseHFSPlusCanonical,
  55                                         uni_str,
  56                                         unicodeChars,
  57                                         (UInt8*)&hfs_str[1],
  58                                         sizeof(Str31) - 1,
  59                                         &usedByteLen);
  60
  61         hfs_str[0] = usedByteLen;
  62
  63         if (srcCharsUsed == unicodeChars)
  64                 return (0);
  65         else
  66                 return (-1);
  67 }
  68
  69
  70 __private_extern__ int
  71 hfs_japanese_start(kmod_info_t *ki, void *data)
  72 {
  73         int result;
  74
  75         result = hfs_addconverter(ki->id, kCFStringEncodingMacJapanese,
  76                         MacJapaneseToUnicode, UnicodeToMacJapanese);
  77
  78         return (result == 0 ? KERN_SUCCESS : KERN_FAILURE);
  79 }
  80
  81 __private_extern__ int
  82 hfs_japanese_stop(kmod_info_t *ki, void *data)
  83 {
  84         int result;
  85
  86         result = hfs_remconverter(ki->id, kCFStringEncodingMacJapanese);
  87
  88         return (result == 0 ? KERN_SUCCESS : KERN_FAILURE);
  89 }
  90
  91
  92