1 /* |
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2 * Copyright (c) 2000-2005 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 /* ================================================================ */ |
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18 /* |
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19 File: ConvertUTF.h |
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20 Author: Mark E. Davis |
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21 Copyright (C) 1994 Taligent, Inc. All rights reserved. |
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22 |
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23 This code is copyrighted. Under the copyright laws, this code may not |
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24 be copied, in whole or part, without prior written consent of Taligent. |
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25 |
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26 Taligent grants the right to use or reprint this code as long as this |
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27 ENTIRE copyright notice is reproduced in the code or reproduction. |
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28 The code is provided AS-IS, AND TALIGENT DISCLAIMS ALL WARRANTIES, |
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29 EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO IMPLIED |
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30 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN |
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31 NO EVENT WILL TALIGENT BE LIABLE FOR ANY DAMAGES WHATSOEVER (INCLUDING, |
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32 WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS |
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33 INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY |
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34 LOSS) ARISING OUT OF THE USE OR INABILITY TO USE THIS CODE, EVEN |
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35 IF TALIGENT HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. |
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36 BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF |
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37 LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE ABOVE |
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38 LIMITATION MAY NOT APPLY TO YOU. |
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39 |
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40 RESTRICTED RIGHTS LEGEND: Use, duplication, or disclosure by the |
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41 government is subject to restrictions as set forth in subparagraph |
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42 (c)(l)(ii) of the Rights in Technical Data and Computer Software |
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43 clause at DFARS 252.227-7013 and FAR 52.227-19. |
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44 |
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45 This code may be protected by one or more U.S. and International |
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46 Patents. |
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47 |
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48 TRADEMARKS: Taligent and the Taligent Design Mark are registered |
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49 trademarks of Taligent, Inc. |
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50 */ |
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51 /* ================================================================ */ |
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52 |
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53 // #include <stdio.h> // commented out by DPB |
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54 // #include <stdlib.h> // commented out by DPB |
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55 // #include <types.h> |
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56 // #include <string.h> // commented out by DPB |
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57 #if !defined(__E32STD_H__) // added by DPB |
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58 #include <e32std.h> // added by DPB |
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59 #endif // added by DPB |
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60 |
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61 /* ================================================================ */ |
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62 /* The following 4 definitions are compiler-specific. |
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63 I would use wchar_t for UCS2/UTF16, except that the C standard |
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64 does not guarantee that it has at least 16 bits, so wchar_t is |
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65 no less portable than unsigned short! |
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66 */ |
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67 |
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68 typedef unsigned long UCS4; |
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69 typedef unsigned short UCS2; |
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70 typedef unsigned short UTF16; |
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71 typedef unsigned char UTF8; |
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72 |
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73 // typedef enum {false, true} Boolean; // commented out by DPB |
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74 |
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75 |
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76 const UCS4 kReplacementCharacter = 0x0000FFFDUL; |
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77 const UCS4 kMaximumUCS2 = 0x0000FFFFUL; |
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78 const UCS4 kMaximumUTF16 = 0x0010FFFFUL; |
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79 const UCS4 kMaximumUCS4 = 0x7FFFFFFFUL; |
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80 |
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81 /* ================================================================ */ |
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82 /* Each of these routines converts the text between *sourceStart and |
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83 sourceEnd, putting the result into the buffer between *targetStart and |
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84 targetEnd. Note: the end pointers are *after* the last item: e.g. |
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85 *(sourceEnd - 1) is the last item. |
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86 |
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87 The return result indicates whether the conversion was successful, |
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88 and if not, whether the problem was in the source or target buffers. |
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89 |
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90 After the conversion, *sourceStart and *targetStart are both |
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91 updated to point to the end of last text successfully converted in |
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92 the respective buffers. |
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93 */ |
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94 |
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95 typedef enum { |
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96 ok, /* conversion successful */ |
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97 sourceExhausted, /* partial character in source, but hit end */ |
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98 targetExhausted /* insuff. room in target for conversion */ |
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99 } ConversionResult; |
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100 |
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101 IMPORT_C // added by DPB |
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102 ConversionResult ConvertUCS4toUTF16 ( |
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103 UCS4** sourceStart, const UCS4* sourceEnd, |
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104 UTF16** targetStart, const UTF16* targetEnd); |
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105 |
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106 IMPORT_C // added by DPB |
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107 ConversionResult ConvertUTF16toUCS4 ( |
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108 UTF16** sourceStart, UTF16* sourceEnd, |
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109 UCS4** targetStart, const UCS4* targetEnd); |
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110 |
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111 IMPORT_C // added by DPB |
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112 ConversionResult ConvertUTF16toUTF8 ( |
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113 UTF16** sourceStart, const UTF16* sourceEnd, |
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114 UTF8** targetStart, const UTF8* targetEnd); |
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115 |
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116 IMPORT_C // added by DPB |
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117 ConversionResult ConvertUTF8toUTF16 ( |
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118 UTF8** sourceStart, UTF8* sourceEnd, |
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119 UTF16** targetStart, const UTF16* targetEnd); |
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120 |
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121 IMPORT_C // added by DPB |
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122 ConversionResult ConvertUCS4toUTF8 ( |
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123 UCS4** sourceStart, const UCS4* sourceEnd, |
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124 UTF8** targetStart, const UTF8* targetEnd); |
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125 |
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126 IMPORT_C // added by DPB |
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127 ConversionResult ConvertUTF8toUCS4 ( |
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128 UTF8** sourceStart, UTF8* sourceEnd, |
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129 UCS4** targetStart, const UCS4* targetEnd); |
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130 |
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131 /* ================================================================ */ |
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