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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 /** | 5 /** |
6 * Javascript-like URI encode/decode functions. | 6 * Javascript-like URI encode/decode functions. |
7 * The documentation here borrows heavily from the original Javascript | 7 * The documentation here borrows heavily from the original Javascript |
8 * doumentation on MDN at: | 8 * doumentation on MDN at: |
9 * https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects | 9 * https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects |
10 */ | 10 */ |
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83 } else { | 83 } else { |
84 int ch = text.charCodeAt(i); | 84 int ch = text.charCodeAt(i); |
85 if (ch >= 0xD800 && ch < 0xDC00) { | 85 if (ch >= 0xD800 && ch < 0xDC00) { |
86 // Low surrogate. We expect a next char high surrogate. | 86 // Low surrogate. We expect a next char high surrogate. |
87 ++i; | 87 ++i; |
88 int nextCh = text.length == i ? 0 : text.charCodeAt(i); | 88 int nextCh = text.length == i ? 0 : text.charCodeAt(i); |
89 if (nextCh >= 0xDC00 && nextCh < 0xE000) { | 89 if (nextCh >= 0xDC00 && nextCh < 0xE000) { |
90 // convert the pair to a U+10000 codepoint | 90 // convert the pair to a U+10000 codepoint |
91 ch = 0x10000 + ((ch-0xD800) << 10) + (nextCh - 0xDC00); | 91 ch = 0x10000 + ((ch-0xD800) << 10) + (nextCh - 0xDC00); |
92 } else { | 92 } else { |
93 throw new IllegalArgumentException('Malformed URI'); | 93 throw new ArgumentError('Malformed URI'); |
94 } | 94 } |
95 } | 95 } |
96 for (int codepoint in codepointsToUtf8([ch])) { | 96 for (int codepoint in codepointsToUtf8([ch])) { |
97 result.add(byteToHex(codepoint)); | 97 result.add(byteToHex(codepoint)); |
98 } | 98 } |
99 } | 99 } |
100 } | 100 } |
101 return result.toString(); | 101 return result.toString(); |
102 } | 102 } |
103 | 103 |
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125 List<int> codepoints = new List<int>(); | 125 List<int> codepoints = new List<int>(); |
126 for (int i = 0; i < text.length;) { | 126 for (int i = 0; i < text.length;) { |
127 String ch = text[i]; | 127 String ch = text[i]; |
128 if (ch != '%') { | 128 if (ch != '%') { |
129 result.add(ch); | 129 result.add(ch); |
130 i++; | 130 i++; |
131 } else { | 131 } else { |
132 codepoints.clear(); | 132 codepoints.clear(); |
133 while (ch == '%') { | 133 while (ch == '%') { |
134 if (++i > text.length - 2) { | 134 if (++i > text.length - 2) { |
135 throw new IllegalArgumentException('Truncated URI'); | 135 throw new ArgumentError('Truncated URI'); |
136 } | 136 } |
137 codepoints.add(_hexCharPairToByte(text, i)); | 137 codepoints.add(_hexCharPairToByte(text, i)); |
138 i += 2; | 138 i += 2; |
139 if (i == text.length) | 139 if (i == text.length) |
140 break; | 140 break; |
141 ch = text[i]; | 141 ch = text[i]; |
142 } | 142 } |
143 result.add(decodeUtf8(codepoints)); | 143 result.add(decodeUtf8(codepoints)); |
144 } | 144 } |
145 } | 145 } |
146 return result.toString(); | 146 return result.toString(); |
147 } | 147 } |
148 | 148 |
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