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#include |
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#include |
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#include |
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4
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5
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#include "houdini.h" |
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6
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7
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static const char URL_SAFE[] = { |
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8
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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9
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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10
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, |
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11
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, |
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12
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0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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13
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, |
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0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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15
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, |
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16
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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17
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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18
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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19
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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21
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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}; |
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static const char URI_SAFE[] = { |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, |
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31
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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32
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, |
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0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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40
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
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}; |
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45
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static int |
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46
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8
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escape(gh_buf *ob, const uint8_t *src, size_t size, |
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const char *safe_table, bool escape_plus) |
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48
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{ |
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static const uint8_t hex_chars[] = "0123456789ABCDEF"; |
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51
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size_t i = 0, org; |
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52
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uint8_t hex_str[3]; |
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53
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54
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8
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hex_str[0] = '%'; |
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55
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56
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27
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100
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while (i < size) { |
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57
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org = i; |
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58
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102
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100
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while (i < size && safe_table[src[i]] != 0) |
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100
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59
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77
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i++; |
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60
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61
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25
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100
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if (likely(i > org)) { |
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62
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14
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100
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if (unlikely(org == 0)) { |
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63
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6
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100
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if (i >= size) |
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64
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return 0; |
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65
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5
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gh_buf_grow(ob, HOUDINI_ESCAPED_SIZE(size)); |
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67
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} |
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68
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69
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13
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gh_buf_put(ob, src + org, i - org); |
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70
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} |
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71
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72
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/* escaping */ |
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73
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24
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100
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if (i >= size) |
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74
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break; |
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75
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76
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19
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100
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if (src[i] == ' ' && escape_plus) { |
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100
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77
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1
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gh_buf_putc(ob, '+'); |
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78
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} else { |
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79
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18
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hex_str[1] = hex_chars[(src[i] >> 4) & 0xF]; |
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80
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18
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hex_str[2] = hex_chars[src[i] & 0xF]; |
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81
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18
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gh_buf_put(ob, hex_str, 3); |
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82
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} |
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83
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84
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19
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i++; |
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85
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} |
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86
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87
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return 1; |
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88
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} |
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89
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90
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int |
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91
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4
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houdini_escape_uri(gh_buf *ob, const uint8_t *src, size_t size) |
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92
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{ |
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93
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4
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return escape(ob, src, size, URI_SAFE, false); |
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94
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} |
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95
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96
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int |
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97
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0
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houdini_escape_uri_component(gh_buf *ob, const uint8_t *src, size_t size) |
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98
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{ |
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99
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0
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return escape(ob, src, size, URL_SAFE, false); |
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100
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} |
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101
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102
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int |
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103
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4
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houdini_escape_url(gh_buf *ob, const uint8_t *src, size_t size) |
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104
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{ |
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105
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4
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return escape(ob, src, size, URL_SAFE, true); |
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106
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} |
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107
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