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1.1 root 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 1.1 (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: File: HFSUnicodeWrappers.h
24:
25: Contains: IPI to Unicode routines used by File Manager.
26:
27: Version: HFS Plus 1.0
28:
29: Written by: Mark Day
30:
31: Copyright: � 1996-1997 by Apple Computer, Inc., all rights reserved.
32:
33: File Ownership:
34:
35: DRI: xxx put dri here xxx
36:
37: Other Contact: xxx put other contact here xxx
38:
39: Technology: xxx put technology here xxx
40:
41: Writers:
42:
43: (DSH) Deric Horn
44: (msd) Mark Day
45: (djb) Don Brady
46:
47: Change History (most recent first):
48:
49: <CS11> 11/16/97 djb Change Unicode.h to UnicodeConverter.h.
50: <CS10> 11/7/97 msd Remove prototype for CompareUnicodeNames(). Add prototype for
51: FastUnicodeCompare().
52: <CS9> 10/13/97 djb Add encoding/index macros and add prototypes for new Get/Set
53: encodding routines.
54: <CS8> 9/15/97 djb InitUnicodeConverter now takes a boolean.
55: <CS7> 9/10/97 msd Add prototype for InitializeEncodingContext.
56: <CS6> 6/26/97 DSH Include "MockConverter" prototype for DFA usage.
57: <CS5> 6/25/97 DSH Removed Prototype definitions, and checked in Unicode.h and
58: TextCommon.h from Julio Gonzales into InternalInterfaces.
59: <CS4> 6/25/97 msd Add prototypes for some new Unicode routines that haven't
60: appeared in MasterInterfaces yet.
61: <CS3> 6/18/97 djb Add more ConversionContexts routines.
62: <CS2> 6/13/97 djb Switched to ConvertUnicodeToHFSName, ConvertHFSNameToUnicode, &
63: CompareUnicodeNames.
64: <CS1> 4/28/97 djb first checked in
65: <HFS1> 12/12/96 msd first checked in
66:
67: */
68:
69: #include "../../hfs_macos_defs.h"
70: #include "../../hfs_format.h"
71:
72: // Encoding vs. Index
73: //
74: // For runtime table lookups and for the volume encoding bitmap we
75: // need to map some encodings to keep them in a reasonable range.
76: //
77:
78: enum {
79: kIndexMacUkrainian = 48, // MacUkrainian encoding is 152
80: kIndexMacFarsi = 49 // MacFarsi encoding is 140
81: };
82:
83: #define MapEncodingToIndex(e) \
84: ( (e) < 48 ? (e) : ( (e) == kTextEncodingMacUkrainian ? kIndexMacUkrainian : ( (e) == kTextEncodingMacFarsi ? kIndexMacFarsi : kTextEncodingMacRoman) ) )
85:
86: #define MapIndexToEncoding(i) \
87: ( (i) == kIndexMacFarsi ? kTextEncodingMacFarsi : ( (i) == kIndexMacUkrainian ? kTextEncodingMacUkrainian : (i) ) )
88:
89: #define ValidMacEncoding(e) \
90: ( ((e) < 39) || ((e) == kTextEncodingMacFarsi) || ((e) == kTextEncodingMacUkrainian) )
91:
92:
93:
94: extern OSErr ConvertUTF8ToUnicode ( ByteCount srcLen,
95: const unsigned char* srcStr,
96: ByteCount maxDstLen,
97: ByteCount *actualDstLen,
98: UniCharArrayPtr dstStr );
99:
100: extern OSErr ConvertUnicodeToUTF8 ( ByteCount srcLen,
101: ConstUniCharArrayPtr srcStr,
102: ByteCount maxDstLen,
103: ByteCount *actualDstLen,
104: unsigned char* dstStr );
105:
106: /*
107: This routine compares two Unicode names based on an ordering defined by the HFS Plus B-tree.
108: This ordering must stay fixed for all time.
109:
110: Output:
111: -n name1 < name2 (i.e. name 1 sorts before name 2)
112: 0 name1 = name2
113: +n name1 > name2
114:
115: NOTE: You should not depend on the magnitude of the result, just its sign. That is, when name1 < name2, then any
116: negative number may be returned.
117: */
118:
119: extern SInt32 FastUnicodeCompare(register ConstUniCharArrayPtr str1, register ItemCount length1,
120: register ConstUniCharArrayPtr str2, register ItemCount length2);
121:
122:
123: extern SInt32 FastRelString( ConstStr255Param str1, ConstStr255Param str2 );
124:
125:
126: extern HFSCatalogNodeID GetEmbeddedFileID( ConstStr31Param filename, UInt32 length, UInt32 *prefixLength );
127:
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