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annotate Framework/Toolbox/GenericToolbox.h @ 1101:141593f1aa88

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fix build on ubuntu
author Sebastien Jodogne <s.jodogne@gmail.com>
date Sat, 26 Oct 2019 11:35:41 +0200
parents 287ec78f63b4
children f7759637cdfb f68da12e852b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2019 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21 #pragma once
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22
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23 #include <string>
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24 #include <stdint.h>
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25
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26 namespace OrthancStone
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27 {
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28 namespace GenericToolbox
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29 {
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30 inline bool LegitDoubleString(const char* text)
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31 {
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32 const char* p = text;
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33 if(*p == '-')
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34 p++;
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35 size_t period = 0;
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36 while(*p != 0)
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37 {
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38 if (*p >= '0' && *p <= '9')
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39 ++p;
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40 else if(*p == '.')
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41 {
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42 if(period > 0)
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43 return false;
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44 else
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45 period++;
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46 ++p;
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47 }
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48 else
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49 return false;
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50 }
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51 return true;
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52 }
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53
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54 inline bool LegitIntegerString(const char* text)
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55 {
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56 const char* p = text;
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57 if (*p == '-')
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58 p++;
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59 while (*p != 0)
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60 {
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61 if (*p >= '0' && *p <= '9')
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62 ++p;
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63 else
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64 return false;
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65 }
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66 return true;
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67 }
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68
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69 /*
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70 String to doubles with at most 18 digits
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71 */
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72 inline bool StringToDouble(double& r, const char* text)
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73 {
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74 if(!LegitDoubleString(text))
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75 return false;
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76
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77 static const double FRAC_FACTORS[] =
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78 {
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79 1.0,
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80 0.1,
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81 0.01,
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82 0.001,
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83 0.0001,
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84 0.00001,
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85 0.000001,
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86 0.0000001,
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87 0.00000001,
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88 0.000000001,
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89 0.0000000001,
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90 0.00000000001,
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91 0.000000000001,
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92 0.0000000000001,
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93 0.00000000000001,
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94 0.000000000000001,
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95 0.0000000000000001,
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96 0.00000000000000001,
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97 0.000000000000000001,
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98 0.0000000000000000001
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99 };
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100 const size_t FRAC_FACTORS_LEN = sizeof(FRAC_FACTORS)/sizeof(double);
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101
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102 r = 0.0;
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103 double neg = 1.0;
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104 const char* p = text;
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105
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106 if (*p == '-')
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107 {
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108 neg = -1.0;
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109 ++p;
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110 }
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111 // 12345.67890
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112 while (*p >= '0' && *p <= '9')
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113 {
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114 r = (r*10.0) + (*p - '0'); // 1 12 123 123 12345
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115 ++p;
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116 }
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117 if (*p == '.')
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118 {
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119 double f = 0.0;
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120 int n = 1;
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121 ++p;
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122 while (*p >= '0' && *p <= '9' && n < FRAC_FACTORS_LEN)
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123 {
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124 f += (*p - '0') * FRAC_FACTORS[n];
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125 ++p;
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126 ++n;
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127 }
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128 r += f;
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129 }
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130 r *= neg;
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131 if (*p == 0 || (*p >= '0' && *p <= '9') )
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132 return true;
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133 else
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134 return false;
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135 }
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136
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137 inline bool StringToDouble(double& r, const std::string& text)
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138 {
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139 return StringToDouble(r, text.c_str());
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140 }
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141
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142 template<typename T>
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143 inline bool StringToInteger(T& r, const char* text)
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144 {
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145 if (!LegitDoubleString(text))
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146 return false;
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147
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148 r = 0;
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149 T neg = 1;
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150 const char* p = text;
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151
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152 if (*p == '-')
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153 {
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154 neg = -1;
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155 ++p;
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156 }
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157 while (*p >= '0' && *p <= '9')
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158 {
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159 r = (r * 10) + (*p - '0'); // 1 12 123 123 12345
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160 ++p;
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161 }
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162 r *= neg;
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163 if (*p == 0)
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164 return true;
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165 else
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166 return false;
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167 }
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168
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169 template<typename T>
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170 inline bool StringToInteger(T& r, const std::string& text)
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171 {
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172 return StringToInteger<T>(r, text.c_str());
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173 }
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174
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175 /**
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176 "rgb(12,23,255)" --> red, green, blue and returns true
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177 "everything else" --> returns false (other values left untouched)
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178 */
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179 bool GetRgbValuesFromString(uint8_t& red, uint8_t& green, uint8_t& blue, const char* text);
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180
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181 /**
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182 See other overload
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183 */
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184 inline bool GetRgbValuesFromString(uint8_t& red, uint8_t& green, uint8_t& blue, const std::string& text)
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185 {
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186 return GetRgbValuesFromString(red, green, blue, text.c_str());
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187 }
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188
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189 bool GetRgbaValuesFromString(uint8_t& red, uint8_t& green, uint8_t& blue, uint8_t& alpha, const char* text);
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190
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191 inline bool GetRgbaValuesFromString(uint8_t& red, uint8_t& green, uint8_t& blue, uint8_t& alpha, const std::string& text)
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192 {
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193 return GetRgbaValuesFromString(red, green, blue, alpha, text.c_str());
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194 }
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195 }
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196 }