1 | // |
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2 | // ASCIIEncoding.cpp |
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3 | // |
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4 | // $Id: //poco/1.3/Foundation/src/ASCIIEncoding.cpp#5 $ |
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5 | // |
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6 | // Library: Foundation |
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7 | // Package: Text |
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8 | // Module: ASCIIEncoding |
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9 | // |
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10 | // Copyright (c) 2004-2007, Applied Informatics Software Engineering GmbH. |
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11 | // and Contributors. |
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12 | // |
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13 | // Permission is hereby granted, free of charge, to any person or organization |
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14 | // obtaining a copy of the software and accompanying documentation covered by |
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15 | // this license (the "Software") to use, reproduce, display, distribute, |
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16 | // execute, and transmit the Software, and to prepare derivative works of the |
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17 | // Software, and to permit third-parties to whom the Software is furnished to |
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18 | // do so, all subject to the following: |
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19 | // |
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20 | // The copyright notices in the Software and this entire statement, including |
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21 | // the above license grant, this restriction and the following disclaimer, |
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22 | // must be included in all copies of the Software, in whole or in part, and |
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23 | // all derivative works of the Software, unless such copies or derivative |
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24 | // works are solely in the form of machine-executable object code generated by |
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25 | // a source language processor. |
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26 | // |
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27 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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28 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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29 | // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT |
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30 | // SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE |
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31 | // FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, |
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32 | // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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33 | // DEALINGS IN THE SOFTWARE. |
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34 | // |
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35 | |
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36 | |
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37 | #include "Poco/ASCIIEncoding.h" |
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38 | #include "Poco/String.h" |
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39 | |
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40 | |
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41 | namespace Poco { |
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42 | |
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43 | |
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44 | const char* ASCIIEncoding::_names[] = |
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45 | { |
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46 | "ASCII", |
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47 | NULL |
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48 | }; |
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49 | |
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50 | |
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51 | const TextEncoding::CharacterMap ASCIIEncoding::_charMap = |
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52 | { |
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53 | /* 00 */ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, |
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54 | /* 10 */ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, |
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55 | /* 20 */ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, |
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56 | /* 30 */ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, |
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57 | /* 40 */ 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, |
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58 | /* 50 */ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, |
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59 | /* 60 */ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, |
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60 | /* 70 */ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, |
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61 | /* 80 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
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62 | /* 90 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
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63 | /* a0 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
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64 | /* b0 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
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65 | /* c0 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
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66 | /* d0 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
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67 | /* e0 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
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68 | /* f0 */ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, |
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69 | }; |
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70 | |
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71 | |
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72 | ASCIIEncoding::ASCIIEncoding() |
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73 | { |
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74 | } |
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75 | |
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76 | |
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77 | ASCIIEncoding::~ASCIIEncoding() |
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78 | { |
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79 | } |
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80 | |
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81 | |
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82 | const char* ASCIIEncoding::canonicalName() const |
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83 | { |
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84 | return _names[0]; |
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85 | } |
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86 | |
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87 | |
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88 | bool ASCIIEncoding::isA(const std::string& encodingName) const |
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89 | { |
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90 | for (const char** name = _names; *name; ++name) |
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91 | { |
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92 | if (Poco::icompare(encodingName, *name) == 0) |
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93 | return true; |
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94 | } |
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95 | return false; |
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96 | } |
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97 | |
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98 | |
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99 | const TextEncoding::CharacterMap& ASCIIEncoding::characterMap() const |
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100 | { |
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101 | return _charMap; |
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102 | } |
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103 | |
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104 | |
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105 | int ASCIIEncoding::convert(const unsigned char* bytes) const |
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106 | { |
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107 | return _charMap[*bytes]; |
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108 | } |
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109 | |
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110 | |
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111 | int ASCIIEncoding::convert(int ch, unsigned char* bytes, int length) const |
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112 | { |
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113 | if (ch >= 0 && ch <= 127) |
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114 | { |
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115 | if (bytes && length >= 1) |
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116 | *bytes = (unsigned char) ch; |
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117 | return 1; |
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118 | } |
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119 | else return 0; |
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120 | } |
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121 | |
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122 | |
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123 | int ASCIIEncoding::queryConvert(const unsigned char* bytes, int length) const |
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124 | { |
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125 | if (1 <= length) |
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126 | return _charMap [*bytes]; |
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127 | else |
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128 | return -1; |
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129 | } |
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130 | |
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131 | |
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132 | int ASCIIEncoding::sequenceLength(const unsigned char* bytes, int length) const |
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133 | { |
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134 | return 1; |
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135 | } |
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136 | |
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137 | |
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138 | } // namespace Poco |
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