voku /
portable-utf8
| @@ 1115-1121 (lines=7) @@ | ||
| 1112 | if (0 == (0x80 & ($in))) { |
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| 1113 | // US-ASCII, pass straight through. |
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| 1114 | $mBytes = 1; |
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| 1115 | } elseif (0xC0 == (0xE0 & ($in))) { |
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| 1116 | // First octet of 2 octet sequence |
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| 1117 | $mUcs4 = ($in); |
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| 1118 | $mUcs4 = ($mUcs4 & 0x1F) << 6; |
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| 1119 | $mState = 1; |
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| 1120 | $mBytes = 2; |
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| 1121 | } elseif (0xE0 == (0xF0 & ($in))) { |
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| 1122 | // First octet of 3 octet sequence |
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| 1123 | $mUcs4 = ($in); |
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| 1124 | $mUcs4 = ($mUcs4 & 0x0F) << 12; |
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| @@ 1127-1133 (lines=7) @@ | ||
| 1124 | $mUcs4 = ($mUcs4 & 0x0F) << 12; |
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| 1125 | $mState = 2; |
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| 1126 | $mBytes = 3; |
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| 1127 | } elseif (0xF0 == (0xF8 & ($in))) { |
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| 1128 | // First octet of 4 octet sequence |
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| 1129 | $mUcs4 = ($in); |
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| 1130 | $mUcs4 = ($mUcs4 & 0x07) << 18; |
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| 1131 | $mState = 3; |
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| 1132 | $mBytes = 4; |
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| 1133 | } elseif (0xF8 == (0xFC & ($in))) { |
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| 1134 | /* First octet of 5 octet sequence. |
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| 1135 | * |
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| 1136 | * This is illegal because the encoded codepoint must be either |
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| @@ 1146-1152 (lines=7) @@ | ||
| 1143 | $mUcs4 = ($mUcs4 & 0x03) << 24; |
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| 1144 | $mState = 4; |
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| 1145 | $mBytes = 5; |
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| 1146 | } elseif (0xFC == (0xFE & ($in))) { |
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| 1147 | // First octet of 6 octet sequence, see comments for 5 octet sequence. |
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| 1148 | $mUcs4 = ($in); |
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| 1149 | $mUcs4 = ($mUcs4 & 1) << 30; |
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| 1150 | $mState = 5; |
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| 1151 | $mBytes = 6; |
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| 1152 | } else { |
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| 1153 | /* Current octet is neither in the US-ASCII range nor a legal first |
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| 1154 | * octet of a multi-octet sequence. |
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| 1155 | */ |
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