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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "net/base/escape.h" | 5 #include "net/base/escape.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
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26 | 26 |
27 // A fast bit-vector map for ascii characters. | 27 // A fast bit-vector map for ascii characters. |
28 // | 28 // |
29 // Internally stores 256 bits in an array of 8 ints. | 29 // Internally stores 256 bits in an array of 8 ints. |
30 // Does quick bit-flicking to lookup needed characters. | 30 // Does quick bit-flicking to lookup needed characters. |
31 struct Charmap { | 31 struct Charmap { |
32 bool Contains(unsigned char c) const { | 32 bool Contains(unsigned char c) const { |
33 return ((map[c >> 5] & (1 << (c & 31))) != 0); | 33 return ((map[c >> 5] & (1 << (c & 31))) != 0); |
34 } | 34 } |
35 | 35 |
36 uint32 map[8]; | 36 uint32_t map[8]; |
37 }; | 37 }; |
38 | 38 |
39 // Given text to escape and a Charmap defining which values to escape, | 39 // Given text to escape and a Charmap defining which values to escape, |
40 // return an escaped string. If use_plus is true, spaces are converted | 40 // return an escaped string. If use_plus is true, spaces are converted |
41 // to +, otherwise, if spaces are in the charmap, they are converted to | 41 // to +, otherwise, if spaces are in the charmap, they are converted to |
42 // %20. And if keep_escaped is true, %XX will be kept as it is, otherwise, if | 42 // %20. And if keep_escaped is true, %XX will be kept as it is, otherwise, if |
43 // '%' is in the charmap, it is converted to %25. | 43 // '%' is in the charmap, it is converted to %25. |
44 std::string Escape(const std::string& text, | 44 std::string Escape(const std::string& text, |
45 const Charmap& charmap, | 45 const Charmap& charmap, |
46 bool use_plus, | 46 bool use_plus, |
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454 1, kEscapeToChars[i].replacement); | 454 1, kEscapeToChars[i].replacement); |
455 break; | 455 break; |
456 } | 456 } |
457 } | 457 } |
458 } | 458 } |
459 } | 459 } |
460 return text; | 460 return text; |
461 } | 461 } |
462 | 462 |
463 } // namespace net | 463 } // namespace net |
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