1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> 5 <meta http-equiv="X-UA-Compatible" content="IE=9"/> 6 <meta name="generator" content="Doxygen 1.8.6"/> 7 <title>Boost.Locale: boost/locale/generic_codecvt.hpp Source File</title> 8 <link href="tabs.css" rel="stylesheet" type="text/css"/> 9 <script type="text/javascript" src="jquery.js"></script> 10 <script type="text/javascript" src="dynsections.js"></script> 11 <link href="navtree.css" rel="stylesheet" type="text/css"/> 12 <script type="text/javascript" src="resize.js"></script> 13 <script type="text/javascript" src="navtree.js"></script> 14 <script type="text/javascript"> 15 $(document).ready(initResizable); 16 $(window).load(resizeHeight); 17 </script> 18 <link href="doxygen.css" rel="stylesheet" type="text/css" /> 19 </head> 20 <body> 21 <div id="top"><!-- do not remove this div, it is closed by doxygen! --> 22 <div id="titlearea"> 23 <table cellspacing="0" cellpadding="0"> 24 <tbody> 25 <tr style="height: 56px;"> 26 <td id="projectlogo"><img alt="Logo" src="boost-small.png"/></td> 27 <td style="padding-left: 0.5em;"> 28 <div id="projectname">Boost.Locale 29 </div> 30 </td> 31 </tr> 32 </tbody> 33 </table> 34 </div> 35 <!-- end header part --> 36 <!-- Generated by Doxygen 1.8.6 --> 37 <div id="navrow1" class="tabs"> 38 <ul class="tablist"> 39 <li><a href="index.html"><span>Main Page</span></a></li> 40 <li><a href="pages.html"><span>Related Pages</span></a></li> 41 <li><a href="modules.html"><span>Modules</span></a></li> 42 <li><a href="namespaces.html"><span>Namespaces</span></a></li> 43 <li><a href="annotated.html"><span>Classes</span></a></li> 44 <li class="current"><a href="files.html"><span>Files</span></a></li> 45 <li><a href="examples.html"><span>Examples</span></a></li> 46 </ul> 47 </div> 48 <div id="navrow2" class="tabs2"> 49 <ul class="tablist"> 50 <li><a href="files.html"><span>File List</span></a></li> 51 </ul> 52 </div> 53 </div><!-- top --> 54 <div id="side-nav" class="ui-resizable side-nav-resizable"> 55 <div id="nav-tree"> 56 <div id="nav-tree-contents"> 57 <div id="nav-sync" class="sync"></div> 58 </div> 59 </div> 60 <div id="splitbar" style="-moz-user-select:none;" 61 class="ui-resizable-handle"> 62 </div> 63 </div> 64 <script type="text/javascript"> 65 $(document).ready(function(){initNavTree('generic__codecvt_8hpp_source.html','');}); 66 </script> 67 <div id="doc-content"> 68 <div class="header"> 69 <div class="headertitle"> 70 <div class="title">generic_codecvt.hpp</div> </div> 71 </div><!--header--> 72 <div class="contents"> 73 <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div> 74 <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright (c) 2015 Artyom Beilis (Tonkikh)</span></div> 75 <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div> 76 <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Distributed under the Boost Software License, Version 1.0. (See</span></div> 77 <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// accompanying file LICENSE_1_0.txt or copy at</span></div> 78 <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.boost.org/LICENSE_1_0.txt)</span></div> 79 <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div> 80 <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#ifndef BOOST_LOCALE_GENERIC_CODECVT_HPP</span></div> 81 <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor"></span><span class="preprocessor">#define BOOST_LOCALE_GENERIC_CODECVT_HPP</span></div> 82 <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor"></span></div> 83 <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <boost/locale/utf.hpp></span></div> 84 <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <boost/cstdint.hpp></span></div> 85 <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <boost/static_assert.hpp></span></div> 86 <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <locale></span></div> 87 <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div> 88 <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="keyword">namespace </span>boost {</div> 89 <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">namespace </span>locale {</div> 90 <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div> 91 <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#ifndef BOOST_LOCALE_DOXYGEN</span></div> 92 <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor"></span><span class="comment">//</span></div> 93 <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// Make sure that mbstate can keep 16 bit of UTF-16 sequence</span></div> 94 <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">//</span></div> 95 <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> BOOST_STATIC_ASSERT(<span class="keyword">sizeof</span>(std::mbstate_t)>=2);</div> 96 <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#endif</span></div> 97 <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span></div> 98 <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#if defined(_MSC_VER) && _MSC_VER < 1700</span></div> 99 <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"></span><span class="comment">// up to MSVC 11 (2012) do_length is non-standard it counts wide characters instead of narrow and does not change mbstate</span></div> 100 <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#define BOOST_LOCALE_DO_LENGTH_MBSTATE_CONST</span></div> 101 <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor"></span><span class="preprocessor">#endif</span></div> 102 <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor"></span></div> 103 <div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="classboost_1_1locale_1_1generic__codecvt__base.html"> 34</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1locale_1_1generic__codecvt__base.html">generic_codecvt_base</a> {</div> 104 <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">public</span>:</div> 105 <div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3"> 39</a></span>  <span class="keyword">enum</span> <a class="code" href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3">initial_convertion_state</a> {</div> 106 <div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3a07029d87e1c62675db6b857d7b6214ec"> 40</a></span>  <a class="code" href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3a07029d87e1c62675db6b857d7b6214ec">to_unicode_state</a>, </div> 107 <div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3a2386c685ac9676370a20d2802184fed1"> 41</a></span>  <a class="code" href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3a2386c685ac9676370a20d2802184fed1">from_unicode_state</a> </div> 108 <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  };</div> 109 <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> };</div> 110 <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div> 111 <div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="keyword">template</span><<span class="keyword">typename</span> CharType,<span class="keyword">typename</span> CodecvtImpl,<span class="keywordtype">int</span> CharSize=sizeof(CharType)></div> 112 <div class="line"><a name="l00140"></a><span class="lineno"><a class="line" href="classboost_1_1locale_1_1generic__codecvt.html"> 140</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1locale_1_1generic__codecvt.html">generic_codecvt</a>;</div> 113 <div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div> 114 <div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="keyword">template</span><<span class="keyword">typename</span> CharType,<span class="keyword">typename</span> CodecvtImpl></div> 115 <div class="line"><a name="l00151"></a><span class="lineno"><a class="line" href="classboost_1_1locale_1_1generic__codecvt_3_01CharType_00_01CodecvtImpl_00_012_01_4.html"> 151</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1locale_1_1generic__codecvt.html">generic_codecvt</a><CharType,CodecvtImpl,2> : <span class="keyword">public</span> std::codecvt<CharType,char,std::mbstate_t>, <span class="keyword">public</span> <a class="code" href="classboost_1_1locale_1_1generic__codecvt__base.html">generic_codecvt_base</a></div> 116 <div class="line"><a name="l00152"></a><span class="lineno"> 152</span> {</div> 117 <div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="keyword">public</span>:</div> 118 <div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div> 119 <div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keyword">typedef</span> CharType uchar;</div> 120 <div class="line"><a name="l00156"></a><span class="lineno"> 156</span> </div> 121 <div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <a class="code" href="classboost_1_1locale_1_1generic__codecvt.html">generic_codecvt</a>(<span class="keywordtype">size_t</span> refs = 0) : </div> 122 <div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  std::codecvt<CharType,char,std::mbstate_t>(refs)</div> 123 <div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  {</div> 124 <div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  }</div> 125 <div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  CodecvtImpl <span class="keyword">const</span> &implementation()<span class="keyword"> const</span></div> 126 <div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="keyword"> </span>{</div> 127 <div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">return</span> *<span class="keyword">static_cast<</span>CodecvtImpl <span class="keyword">const </span>*<span class="keyword">></span>(<span class="keyword">this</span>);</div> 128 <div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  }</div> 129 <div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div> 130 <div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="keyword">protected</span>:</div> 131 <div class="line"><a name="l00167"></a><span class="lineno"> 167</span> </div> 132 <div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div> 133 <div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keyword">virtual</span> std::codecvt_base::result do_unshift(std::mbstate_t &s,<span class="keywordtype">char</span> *from,<span class="keywordtype">char</span> * <span class="comment">/*to*/</span>,<span class="keywordtype">char</span> *&next)<span class="keyword"> const</span></div> 134 <div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="keyword"> </span>{</div> 135 <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  boost::uint16_t &state = *<span class="keyword">reinterpret_cast<</span>boost::uint16_t *<span class="keyword">></span>(&s);</div> 136 <div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="preprocessor">#ifdef DEBUG_CODECVT </span></div> 137 <div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="preprocessor"></span> std::cout << <span class="stringliteral">"Entering unshift "</span> << std::hex << state << std::dec << std::endl;</div> 138 <div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="preprocessor">#endif </span></div> 139 <div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="preprocessor"></span> <span class="keywordflow">if</span>(state != 0)</div> 140 <div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">return</span> std::codecvt_base::error;</div> 141 <div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  next=from;</div> 142 <div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">return</span> std::codecvt_base::ok;</div> 143 <div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  }</div> 144 <div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keyword">virtual</span> <span class="keywordtype">int</span> do_encoding() <span class="keyword">const</span> <span class="keywordflow">throw</span>()</div> 145 <div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  {</div> 146 <div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">return</span> 0;</div> 147 <div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  }</div> 148 <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keyword">virtual</span> <span class="keywordtype">int</span> do_max_length() <span class="keyword">const</span> <span class="keywordflow">throw</span>()</div> 149 <div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  {</div> 150 <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">return</span> implementation().max_encoding_length();</div> 151 <div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  }</div> 152 <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> do_always_noconv() <span class="keyword">const</span> <span class="keywordflow">throw</span>()</div> 153 <div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  {</div> 154 <div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> 155 <div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  }</div> 156 <div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div> 157 <div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keyword">virtual</span> <span class="keywordtype">int</span></div> 158 <div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  do_length( std::mbstate_t </div> 159 <div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  #ifdef BOOST_LOCALE_DO_LENGTH_MBSTATE_CONST</div> 160 <div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keyword">const</span> </div> 161 <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  #endif</div> 162 <div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  &std_state,</div> 163 <div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> *from,</div> 164 <div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> *from_end,</div> 165 <div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordtype">size_t</span> max)<span class="keyword"> const</span></div> 166 <div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="keyword"> </span>{</div> 167 <div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="preprocessor"> #ifndef BOOST_LOCALE_DO_LENGTH_MBSTATE_CONST</span></div> 168 <div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="preprocessor"></span> <span class="keywordtype">char</span> <span class="keyword">const</span> *save_from = from;</div> 169 <div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  boost::uint16_t &state = *<span class="keyword">reinterpret_cast<</span>boost::uint16_t *<span class="keyword">></span>(&std_state);</div> 170 <div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="preprocessor"> #else</span></div> 171 <div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="preprocessor"></span> <span class="keywordtype">size_t</span> save_max = max;</div> 172 <div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  boost::uint16_t state = *<span class="keyword">reinterpret_cast<</span>boost::uint16_t <span class="keyword">const </span>*<span class="keyword">></span>(&std_state);</div> 173 <div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="preprocessor"> #endif</span></div> 174 <div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="preprocessor"></span></div> 175 <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> CodecvtImpl::state_type state_type;</div> 176 <div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  state_type cvt_state = implementation().initial_state(<a class="code" href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3a07029d87e1c62675db6b857d7b6214ec">generic_codecvt_base::to_unicode_state</a>);</div> 177 <div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">while</span>(max > 0 && from < from_end){</div> 178 <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> *prev_from = from;</div> 179 <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  boost::uint32_t ch=implementation().to_unicode(cvt_state,from,from_end);</div> 180 <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordflow">if</span>(ch==<a class="code" href="namespaceboost_1_1locale_1_1utf.html#a20dbe458fd18229a0e6c09888d031b38">boost::locale::utf::incomplete</a> || ch==<a class="code" href="namespaceboost_1_1locale_1_1utf.html#a30010000878c7732340bda8956b844fb">boost::locale::utf::illegal</a>) {</div> 181 <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  from = prev_from;</div> 182 <div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">break</span>;</div> 183 <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  }</div> 184 <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  max --;</div> 185 <div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">if</span>(ch > 0xFFFF) {</div> 186 <div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">if</span>(state == 0) {</div> 187 <div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  from = prev_from;</div> 188 <div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  state = 1;</div> 189 <div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  }</div> 190 <div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">else</span> {</div> 191 <div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  state = 0;</div> 192 <div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  }</div> 193 <div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  } </div> 194 <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  }</div> 195 <div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="preprocessor"> #ifndef BOOST_LOCALE_DO_LENGTH_MBSTATE_CONST</span></div> 196 <div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> from - save_from;</div> 197 <div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="preprocessor"> #else</span></div> 198 <div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> save_max - max;</div> 199 <div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="preprocessor"> #endif</span></div> 200 <div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="preprocessor"></span> }</div> 201 <div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div> 202 <div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  </div> 203 <div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keyword">virtual</span> std::codecvt_base::result </div> 204 <div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  do_in( std::mbstate_t &std_state,</div> 205 <div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> *from,</div> 206 <div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> *from_end,</div> 207 <div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> *&from_next,</div> 208 <div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  uchar *to,</div> 209 <div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  uchar *to_end,</div> 210 <div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  uchar *&to_next)<span class="keyword"> const</span></div> 211 <div class="line"><a name="l00247"></a><span class="lineno"> 247</span> <span class="keyword"> </span>{</div> 212 <div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  std::codecvt_base::result r=std::codecvt_base::ok;</div> 213 <div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  </div> 214 <div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="comment">// mbstate_t is POD type and should be initialized to 0 (i.a. state = stateT())</span></div> 215 <div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="comment">// according to standard. We use it to keep a flag 0/1 for surrogate pair writing</span></div> 216 <div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="comment">//</span></div> 217 <div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="comment">// if 0 no code above >0xFFFF observed, of 1 a code above 0xFFFF observerd</span></div> 218 <div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="comment">// and first pair is written, but no input consumed</span></div> 219 <div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  boost::uint16_t &state = *<span class="keyword">reinterpret_cast<</span>boost::uint16_t *<span class="keyword">></span>(&std_state);</div> 220 <div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> CodecvtImpl::state_type state_type;</div> 221 <div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  state_type cvt_state = implementation().initial_state(<a class="code" href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3a07029d87e1c62675db6b857d7b6214ec">generic_codecvt_base::to_unicode_state</a>);</div> 222 <div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keywordflow">while</span>(to < to_end && from < from_end)</div> 223 <div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  {</div> 224 <div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="preprocessor">#ifdef DEBUG_CODECVT </span></div> 225 <div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="preprocessor"></span> std::cout << <span class="stringliteral">"Entering IN--------------"</span> << std::endl;</div> 226 <div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  std::cout << <span class="stringliteral">"State "</span> << std::hex << state <<std::endl;</div> 227 <div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  std::cout << <span class="stringliteral">"Left in "</span> << std::dec << from_end - from << <span class="stringliteral">" out "</span> << to_end -to << std::endl;</div> 228 <div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="preprocessor">#endif </span></div> 229 <div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="preprocessor"></span> <span class="keywordtype">char</span> <span class="keyword">const</span> *from_saved = from;</div> 230 <div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  </div> 231 <div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  uint32_t ch=implementation().to_unicode(cvt_state,from,from_end);</div> 232 <div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  </div> 233 <div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keywordflow">if</span>(ch==<a class="code" href="namespaceboost_1_1locale_1_1utf.html#a30010000878c7732340bda8956b844fb">boost::locale::utf::illegal</a>) {</div> 234 <div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  from = from_saved;</div> 235 <div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  r=std::codecvt_base::error;</div> 236 <div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keywordflow">break</span>;</div> 237 <div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  }</div> 238 <div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">if</span>(ch==<a class="code" href="namespaceboost_1_1locale_1_1utf.html#a20dbe458fd18229a0e6c09888d031b38">boost::locale::utf::incomplete</a>) {</div> 239 <div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  from = from_saved;</div> 240 <div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  r=std::codecvt_base::partial;</div> 241 <div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keywordflow">break</span>;</div> 242 <div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  }</div> 243 <div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <span class="comment">// Normal codepoints go direcly to stream</span></div> 244 <div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">if</span>(ch <= 0xFFFF) {</div> 245 <div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  *to++=ch;</div> 246 <div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  }</div> 247 <div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keywordflow">else</span> {</div> 248 <div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="comment">// for other codepoints we do following</span></div> 249 <div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="comment">//</span></div> 250 <div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="comment">// 1. We can't consume our input as we may find ourselfs</span></div> 251 <div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="comment">// in state where all input consumed but not all output written,i.e. only</span></div> 252 <div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="comment">// 1st pair is written</span></div> 253 <div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="comment">// 2. We only write first pair and mark this in the state, we also revert back</span></div> 254 <div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="comment">// the from pointer in order to make sure this codepoint would be read</span></div> 255 <div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="comment">// once again and then we would consume our input together with writing</span></div> 256 <div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="comment">// second surrogate pair</span></div> 257 <div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  ch-=0x10000;</div> 258 <div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  boost::uint16_t vh = ch >> 10;</div> 259 <div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  boost::uint16_t vl = ch & 0x3FF;</div> 260 <div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  boost::uint16_t w1 = vh + 0xD800;</div> 261 <div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  boost::uint16_t w2 = vl + 0xDC00;</div> 262 <div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="keywordflow">if</span>(state == 0) {</div> 263 <div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  from = from_saved;</div> 264 <div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  *to++ = w1;</div> 265 <div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  state = 1;</div> 266 <div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  }</div> 267 <div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordflow">else</span> {</div> 268 <div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  *to++ = w2;</div> 269 <div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  state = 0;</div> 270 <div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  }</div> 271 <div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  }</div> 272 <div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  }</div> 273 <div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  from_next=from;</div> 274 <div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  to_next=to;</div> 275 <div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">if</span>(r == std::codecvt_base::ok && (from!=from_end || state!=0))</div> 276 <div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  r = std::codecvt_base::partial;</div> 277 <div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="preprocessor">#ifdef DEBUG_CODECVT </span></div> 278 <div class="line"><a name="l00314"></a><span class="lineno"> 314</span> <span class="preprocessor"></span> std::cout << <span class="stringliteral">"Returning "</span>;</div> 279 <div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">switch</span>(r) {</div> 280 <div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">case</span> std::codecvt_base::ok:</div> 281 <div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  std::cout << <span class="stringliteral">"ok"</span> << std::endl;</div> 282 <div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordflow">break</span>;</div> 283 <div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keywordflow">case</span> std::codecvt_base::partial:</div> 284 <div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  std::cout << <span class="stringliteral">"partial"</span> << std::endl;</div> 285 <div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="keywordflow">break</span>;</div> 286 <div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keywordflow">case</span> std::codecvt_base::error:</div> 287 <div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  std::cout << <span class="stringliteral">"error"</span> << std::endl;</div> 288 <div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordflow">break</span>;</div> 289 <div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="keywordflow">default</span>:</div> 290 <div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  std::cout << <span class="stringliteral">"other"</span> << std::endl;</div> 291 <div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordflow">break</span>;</div> 292 <div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  }</div> 293 <div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  std::cout << <span class="stringliteral">"State "</span> << std::hex << state <<std::endl;</div> 294 <div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  std::cout << <span class="stringliteral">"Left in "</span> << std::dec << from_end - from << <span class="stringliteral">" out "</span> << to_end -to << std::endl;</div> 295 <div class="line"><a name="l00331"></a><span class="lineno"> 331</span> <span class="preprocessor">#endif </span></div> 296 <div class="line"><a name="l00332"></a><span class="lineno"> 332</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> r;</div> 297 <div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  }</div> 298 <div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  </div> 299 <div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keyword">virtual</span> std::codecvt_base::result </div> 300 <div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  do_out( std::mbstate_t &std_state,</div> 301 <div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  uchar <span class="keyword">const</span> *from,</div> 302 <div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  uchar <span class="keyword">const</span> *from_end,</div> 303 <div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  uchar <span class="keyword">const</span> *&from_next,</div> 304 <div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keywordtype">char</span> *to,</div> 305 <div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="keywordtype">char</span> *to_end,</div> 306 <div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordtype">char</span> *&to_next)<span class="keyword"> const</span></div> 307 <div class="line"><a name="l00343"></a><span class="lineno"> 343</span> <span class="keyword"> </span>{</div> 308 <div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  std::codecvt_base::result r=std::codecvt_base::ok;</div> 309 <div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="comment">// mbstate_t is POD type and should be initialized to 0 (i.a. state = stateT())</span></div> 310 <div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="comment">// according to standard. We assume that sizeof(mbstate_t) >=2 in order</span></div> 311 <div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="comment">// to be able to store first observerd surrogate pair</span></div> 312 <div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="comment">//</span></div> 313 <div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="comment">// State: state!=0 - a first surrogate pair was observerd (state = first pair),</span></div> 314 <div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="comment">// we expect the second one to come and then zero the state</span></div> 315 <div class="line"><a name="l00352"></a><span class="lineno"> 352</span> <span class="comment"></span> boost::uint16_t &state = *<span class="keyword">reinterpret_cast<</span>boost::uint16_t *<span class="keyword">></span>(&std_state);</div> 316 <div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> CodecvtImpl::state_type state_type;</div> 317 <div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  state_type cvt_state = implementation().initial_state(<a class="code" href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3a2386c685ac9676370a20d2802184fed1">generic_codecvt_base::from_unicode_state</a>);</div> 318 <div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">while</span>(to < to_end && from < from_end)</div> 319 <div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  {</div> 320 <div class="line"><a name="l00357"></a><span class="lineno"> 357</span> <span class="preprocessor">#ifdef DEBUG_CODECVT </span></div> 321 <div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="preprocessor"></span> std::cout << <span class="stringliteral">"Entering OUT --------------"</span> << std::endl;</div> 322 <div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  std::cout << <span class="stringliteral">"State "</span> << std::hex << state <<std::endl;</div> 323 <div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  std::cout << <span class="stringliteral">"Left in "</span> << std::dec << from_end - from << <span class="stringliteral">" out "</span> << to_end -to << std::endl;</div> 324 <div class="line"><a name="l00361"></a><span class="lineno"> 361</span> <span class="preprocessor">#endif </span></div> 325 <div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="preprocessor"></span> boost::uint32_t ch=0;</div> 326 <div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="keywordflow">if</span>(state != 0) {</div> 327 <div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="comment">// if the state idecates that 1st surrogate pair was written</span></div> 328 <div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="comment">// we should make sure that the second one that comes is actually</span></div> 329 <div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="comment">// second surrogate</span></div> 330 <div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  boost::uint16_t w1 = state;</div> 331 <div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  boost::uint16_t w2 = *from; </div> 332 <div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="comment">// we don't forward from as writing may fail to incomplete or</span></div> 333 <div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="comment">// partial conversion</span></div> 334 <div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keywordflow">if</span>(0xDC00 <= w2 && w2<=0xDFFF) {</div> 335 <div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  boost::uint16_t vh = w1 - 0xD800;</div> 336 <div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  boost::uint16_t vl = w2 - 0xDC00;</div> 337 <div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  ch=((uint32_t(vh) << 10) | vl) + 0x10000;</div> 338 <div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  }</div> 339 <div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="keywordflow">else</span> {</div> 340 <div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="comment">// Invalid surrogate</span></div> 341 <div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  r=std::codecvt_base::error;</div> 342 <div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="keywordflow">break</span>;</div> 343 <div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  }</div> 344 <div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  }</div> 345 <div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <span class="keywordflow">else</span> {</div> 346 <div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  ch = *from;</div> 347 <div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keywordflow">if</span>(0xD800 <= ch && ch<=0xDBFF) {</div> 348 <div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="comment">// if this is a first surrogate pair we put</span></div> 349 <div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="comment">// it into the state and consume it, note we don't</span></div> 350 <div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="comment">// go forward as it should be illegal so we increase</span></div> 351 <div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="comment">// the from pointer manually</span></div> 352 <div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  state = ch;</div> 353 <div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  from++;</div> 354 <div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="keywordflow">continue</span>;</div> 355 <div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  }</div> 356 <div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span>(0xDC00 <= ch && ch<=0xDFFF) {</div> 357 <div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="comment">// if we observe second surrogate pair and </span></div> 358 <div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="comment">// first only may be expected we should break from the loop with error</span></div> 359 <div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="comment">// as it is illegal input</span></div> 360 <div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  r=std::codecvt_base::error;</div> 361 <div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keywordflow">break</span>;</div> 362 <div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  }</div> 363 <div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  }</div> 364 <div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordflow">if</span>(!<a class="code" href="namespaceboost_1_1locale_1_1utf.html#a189805c4e9f4c033ce5f88daf780e08e">boost::locale::utf::is_valid_codepoint</a>(ch)) {</div> 365 <div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  r=std::codecvt_base::error;</div> 366 <div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="keywordflow">break</span>;</div> 367 <div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  }</div> 368 <div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  boost::uint32_t len = implementation().from_unicode(cvt_state,ch,to,to_end);</div> 369 <div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="keywordflow">if</span>(len == <a class="code" href="namespaceboost_1_1locale_1_1utf.html#a20dbe458fd18229a0e6c09888d031b38">boost::locale::utf::incomplete</a>) {</div> 370 <div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  r=std::codecvt_base::partial;</div> 371 <div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">break</span>;</div> 372 <div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  }</div> 373 <div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span>(len == <a class="code" href="namespaceboost_1_1locale_1_1utf.html#a30010000878c7732340bda8956b844fb">boost::locale::utf::illegal</a>) {</div> 374 <div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  r=std::codecvt_base::error;</div> 375 <div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keywordflow">break</span>;</div> 376 <div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  }</div> 377 <div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keywordflow">else</span></div> 378 <div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  to+= len;</div> 379 <div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  state = 0;</div> 380 <div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  from++;</div> 381 <div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  }</div> 382 <div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  from_next=from;</div> 383 <div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  to_next=to;</div> 384 <div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keywordflow">if</span>(r==std::codecvt_base::ok && from!=from_end)</div> 385 <div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  r = std::codecvt_base::partial;</div> 386 <div class="line"><a name="l00423"></a><span class="lineno"> 423</span> <span class="preprocessor">#ifdef DEBUG_CODECVT </span></div> 387 <div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="preprocessor"></span> std::cout << <span class="stringliteral">"Returning "</span>;</div> 388 <div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="keywordflow">switch</span>(r) {</div> 389 <div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keywordflow">case</span> std::codecvt_base::ok:</div> 390 <div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  std::cout << <span class="stringliteral">"ok"</span> << std::endl;</div> 391 <div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="keywordflow">break</span>;</div> 392 <div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="keywordflow">case</span> std::codecvt_base::partial:</div> 393 <div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  std::cout << <span class="stringliteral">"partial"</span> << std::endl;</div> 394 <div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keywordflow">break</span>;</div> 395 <div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="keywordflow">case</span> std::codecvt_base::error:</div> 396 <div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  std::cout << <span class="stringliteral">"error"</span> << std::endl;</div> 397 <div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="keywordflow">break</span>;</div> 398 <div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keywordflow">default</span>:</div> 399 <div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  std::cout << <span class="stringliteral">"other"</span> << std::endl;</div> 400 <div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keywordflow">break</span>;</div> 401 <div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  }</div> 402 <div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  std::cout << <span class="stringliteral">"State "</span> << std::hex << state <<std::endl;</div> 403 <div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  std::cout << <span class="stringliteral">"Left in "</span> << std::dec << from_end - from << <span class="stringliteral">" out "</span> << to_end -to << std::endl;</div> 404 <div class="line"><a name="l00441"></a><span class="lineno"> 441</span> <span class="preprocessor">#endif </span></div> 405 <div class="line"><a name="l00442"></a><span class="lineno"> 442</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> r;</div> 406 <div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  }</div> 407 <div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  </div> 408 <div class="line"><a name="l00445"></a><span class="lineno"> 445</span> };</div> 409 <div class="line"><a name="l00446"></a><span class="lineno"> 446</span> </div> 410 <div class="line"><a name="l00453"></a><span class="lineno"> 453</span> <span class="keyword">template</span><<span class="keyword">typename</span> CharType,<span class="keyword">typename</span> CodecvtImpl></div> 411 <div class="line"><a name="l00454"></a><span class="lineno"><a class="line" href="classboost_1_1locale_1_1generic__codecvt_3_01CharType_00_01CodecvtImpl_00_014_01_4.html"> 454</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1locale_1_1generic__codecvt.html">generic_codecvt</a><CharType,CodecvtImpl,4> : <span class="keyword">public</span> std::codecvt<CharType,char,std::mbstate_t>, <span class="keyword">public</span> <a class="code" href="classboost_1_1locale_1_1generic__codecvt__base.html">generic_codecvt_base</a></div> 412 <div class="line"><a name="l00455"></a><span class="lineno"> 455</span> {</div> 413 <div class="line"><a name="l00456"></a><span class="lineno"> 456</span> <span class="keyword">public</span>:</div> 414 <div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="keyword">typedef</span> CharType uchar;</div> 415 <div class="line"><a name="l00458"></a><span class="lineno"> 458</span> </div> 416 <div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <a class="code" href="classboost_1_1locale_1_1generic__codecvt.html">generic_codecvt</a>(<span class="keywordtype">size_t</span> refs = 0) : </div> 417 <div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  std::codecvt<CharType,char,std::mbstate_t>(refs)</div> 418 <div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  {</div> 419 <div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  }</div> 420 <div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  </div> 421 <div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  CodecvtImpl <span class="keyword">const</span> &implementation()<span class="keyword"> const</span></div> 422 <div class="line"><a name="l00465"></a><span class="lineno"> 465</span> <span class="keyword"> </span>{</div> 423 <div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="keywordflow">return</span> *<span class="keyword">static_cast<</span>CodecvtImpl <span class="keyword">const </span>*<span class="keyword">></span>(<span class="keyword">this</span>);</div> 424 <div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  }</div> 425 <div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  </div> 426 <div class="line"><a name="l00469"></a><span class="lineno"> 469</span> <span class="keyword">protected</span>:</div> 427 <div class="line"><a name="l00470"></a><span class="lineno"> 470</span> </div> 428 <div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <span class="keyword">virtual</span> std::codecvt_base::result do_unshift(std::mbstate_t &<span class="comment">/*s*/</span>,<span class="keywordtype">char</span> *from,<span class="keywordtype">char</span> * <span class="comment">/*to*/</span>,<span class="keywordtype">char</span> *&next)<span class="keyword"> const</span></div> 429 <div class="line"><a name="l00472"></a><span class="lineno"> 472</span> <span class="keyword"> </span>{</div> 430 <div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  next=from;</div> 431 <div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <span class="keywordflow">return</span> std::codecvt_base::ok;</div> 432 <div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  }</div> 433 <div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keyword">virtual</span> <span class="keywordtype">int</span> do_encoding() <span class="keyword">const</span> <span class="keywordflow">throw</span>()</div> 434 <div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  {</div> 435 <div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="keywordflow">return</span> 0;</div> 436 <div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  }</div> 437 <div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keyword">virtual</span> <span class="keywordtype">int</span> do_max_length() <span class="keyword">const</span> <span class="keywordflow">throw</span>()</div> 438 <div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  {</div> 439 <div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <span class="keywordflow">return</span> implementation().max_encoding_length();</div> 440 <div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  }</div> 441 <div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> do_always_noconv() <span class="keyword">const</span> <span class="keywordflow">throw</span>()</div> 442 <div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  {</div> 443 <div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> 444 <div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  }</div> 445 <div class="line"><a name="l00488"></a><span class="lineno"> 488</span> </div> 446 <div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  <span class="keyword">virtual</span> <span class="keywordtype">int</span></div> 447 <div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  do_length( std::mbstate_t </div> 448 <div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  #ifdef BOOST_LOCALE_DO_LENGTH_MBSTATE_CONST</div> 449 <div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="keyword">const</span> </div> 450 <div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  #endif </div> 451 <div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  &<span class="comment">/*state*/</span>,</div> 452 <div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> *from,</div> 453 <div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> *from_end,</div> 454 <div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keywordtype">size_t</span> max)<span class="keyword"> const</span></div> 455 <div class="line"><a name="l00498"></a><span class="lineno"> 498</span> <span class="keyword"> </span>{</div> 456 <div class="line"><a name="l00499"></a><span class="lineno"> 499</span> <span class="preprocessor"> #ifndef BOOST_LOCALE_DO_LENGTH_MBSTATE_CONST </span></div> 457 <div class="line"><a name="l00500"></a><span class="lineno"> 500</span> <span class="preprocessor"></span> <span class="keywordtype">char</span> <span class="keyword">const</span> *start_from = from;</div> 458 <div class="line"><a name="l00501"></a><span class="lineno"> 501</span> <span class="preprocessor"> #else</span></div> 459 <div class="line"><a name="l00502"></a><span class="lineno"> 502</span> <span class="preprocessor"></span> <span class="keywordtype">size_t</span> save_max = max;</div> 460 <div class="line"><a name="l00503"></a><span class="lineno"> 503</span> <span class="preprocessor"> #endif</span></div> 461 <div class="line"><a name="l00504"></a><span class="lineno"> 504</span> <span class="preprocessor"></span> <span class="keyword">typedef</span> <span class="keyword">typename</span> CodecvtImpl::state_type state_type;</div> 462 <div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  state_type cvt_state = implementation().initial_state(<a class="code" href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3a07029d87e1c62675db6b857d7b6214ec">generic_codecvt_base::to_unicode_state</a>);</div> 463 <div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <span class="keywordflow">while</span>(max > 0 && from < from_end){</div> 464 <div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> *save_from = from;</div> 465 <div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  boost::uint32_t ch=implementation().to_unicode(cvt_state,from,from_end);</div> 466 <div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keywordflow">if</span>(ch==<a class="code" href="namespaceboost_1_1locale_1_1utf.html#a20dbe458fd18229a0e6c09888d031b38">boost::locale::utf::incomplete</a> || ch==<a class="code" href="namespaceboost_1_1locale_1_1utf.html#a30010000878c7732340bda8956b844fb">boost::locale::utf::illegal</a>) {</div> 467 <div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  from = save_from;</div> 468 <div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="keywordflow">break</span>;</div> 469 <div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  }</div> 470 <div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  max--;</div> 471 <div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  }</div> 472 <div class="line"><a name="l00515"></a><span class="lineno"> 515</span> <span class="preprocessor"> #ifndef BOOST_LOCALE_DO_LENGTH_MBSTATE_CONST </span></div> 473 <div class="line"><a name="l00516"></a><span class="lineno"> 516</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> from - start_from;</div> 474 <div class="line"><a name="l00517"></a><span class="lineno"> 517</span> <span class="preprocessor"> #else</span></div> 475 <div class="line"><a name="l00518"></a><span class="lineno"> 518</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> save_max - max;</div> 476 <div class="line"><a name="l00519"></a><span class="lineno"> 519</span> <span class="preprocessor"> #endif</span></div> 477 <div class="line"><a name="l00520"></a><span class="lineno"> 520</span> <span class="preprocessor"></span> }</div> 478 <div class="line"><a name="l00521"></a><span class="lineno"> 521</span> </div> 479 <div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  </div> 480 <div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keyword">virtual</span> std::codecvt_base::result </div> 481 <div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  do_in( std::mbstate_t &<span class="comment">/*state*/</span>,</div> 482 <div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> *from,</div> 483 <div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> *from_end,</div> 484 <div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> *&from_next,</div> 485 <div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  uchar *to,</div> 486 <div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  uchar *to_end,</div> 487 <div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  uchar *&to_next)<span class="keyword"> const</span></div> 488 <div class="line"><a name="l00531"></a><span class="lineno"> 531</span> <span class="keyword"> </span>{</div> 489 <div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  std::codecvt_base::result r=std::codecvt_base::ok;</div> 490 <div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  </div> 491 <div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <span class="comment">// mbstate_t is POD type and should be initialized to 0 (i.a. state = stateT())</span></div> 492 <div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <span class="comment">// according to standard. We use it to keep a flag 0/1 for surrogate pair writing</span></div> 493 <div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="comment">//</span></div> 494 <div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="comment">// if 0 no code above >0xFFFF observed, of 1 a code above 0xFFFF observerd</span></div> 495 <div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  <span class="comment">// and first pair is written, but no input consumed</span></div> 496 <div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> CodecvtImpl::state_type state_type;</div> 497 <div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  state_type cvt_state = implementation().initial_state(<a class="code" href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3a07029d87e1c62675db6b857d7b6214ec">generic_codecvt_base::to_unicode_state</a>);</div> 498 <div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  <span class="keywordflow">while</span>(to < to_end && from < from_end)</div> 499 <div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  {</div> 500 <div class="line"><a name="l00543"></a><span class="lineno"> 543</span> <span class="preprocessor">#ifdef DEBUG_CODECVT </span></div> 501 <div class="line"><a name="l00544"></a><span class="lineno"> 544</span> <span class="preprocessor"></span> std::cout << <span class="stringliteral">"Entering IN--------------"</span> << std::endl;</div> 502 <div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  std::cout << <span class="stringliteral">"State "</span> << std::hex << state <<std::endl;</div> 503 <div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  std::cout << <span class="stringliteral">"Left in "</span> << std::dec << from_end - from << <span class="stringliteral">" out "</span> << to_end -to << std::endl;</div> 504 <div class="line"><a name="l00547"></a><span class="lineno"> 547</span> <span class="preprocessor">#endif </span></div> 505 <div class="line"><a name="l00548"></a><span class="lineno"> 548</span> <span class="preprocessor"></span> <span class="keywordtype">char</span> <span class="keyword">const</span> *from_saved = from;</div> 506 <div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  </div> 507 <div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  uint32_t ch=implementation().to_unicode(cvt_state,from,from_end);</div> 508 <div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  </div> 509 <div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <span class="keywordflow">if</span>(ch==<a class="code" href="namespaceboost_1_1locale_1_1utf.html#a30010000878c7732340bda8956b844fb">boost::locale::utf::illegal</a>) {</div> 510 <div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  r=std::codecvt_base::error;</div> 511 <div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  from = from_saved;</div> 512 <div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  <span class="keywordflow">break</span>;</div> 513 <div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  }</div> 514 <div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  <span class="keywordflow">if</span>(ch==<a class="code" href="namespaceboost_1_1locale_1_1utf.html#a20dbe458fd18229a0e6c09888d031b38">boost::locale::utf::incomplete</a>) {</div> 515 <div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  r=std::codecvt_base::partial;</div> 516 <div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  from=from_saved;</div> 517 <div class="line"><a name="l00560"></a><span class="lineno"> 560</span>  <span class="keywordflow">break</span>;</div> 518 <div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  }</div> 519 <div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  *to++=ch;</div> 520 <div class="line"><a name="l00563"></a><span class="lineno"> 563</span>  }</div> 521 <div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  from_next=from;</div> 522 <div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  to_next=to;</div> 523 <div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  <span class="keywordflow">if</span>(r == std::codecvt_base::ok && from!=from_end)</div> 524 <div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  r = std::codecvt_base::partial;</div> 525 <div class="line"><a name="l00568"></a><span class="lineno"> 568</span> <span class="preprocessor">#ifdef DEBUG_CODECVT </span></div> 526 <div class="line"><a name="l00569"></a><span class="lineno"> 569</span> <span class="preprocessor"></span> std::cout << <span class="stringliteral">"Returning "</span>;</div> 527 <div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  <span class="keywordflow">switch</span>(r) {</div> 528 <div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="keywordflow">case</span> std::codecvt_base::ok:</div> 529 <div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  std::cout << <span class="stringliteral">"ok"</span> << std::endl;</div> 530 <div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  <span class="keywordflow">break</span>;</div> 531 <div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  <span class="keywordflow">case</span> std::codecvt_base::partial:</div> 532 <div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  std::cout << <span class="stringliteral">"partial"</span> << std::endl;</div> 533 <div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  <span class="keywordflow">break</span>;</div> 534 <div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="keywordflow">case</span> std::codecvt_base::error:</div> 535 <div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  std::cout << <span class="stringliteral">"error"</span> << std::endl;</div> 536 <div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="keywordflow">break</span>;</div> 537 <div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  <span class="keywordflow">default</span>:</div> 538 <div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  std::cout << <span class="stringliteral">"other"</span> << std::endl;</div> 539 <div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  <span class="keywordflow">break</span>;</div> 540 <div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  }</div> 541 <div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  std::cout << <span class="stringliteral">"State "</span> << std::hex << state <<std::endl;</div> 542 <div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  std::cout << <span class="stringliteral">"Left in "</span> << std::dec << from_end - from << <span class="stringliteral">" out "</span> << to_end -to << std::endl;</div> 543 <div class="line"><a name="l00586"></a><span class="lineno"> 586</span> <span class="preprocessor">#endif </span></div> 544 <div class="line"><a name="l00587"></a><span class="lineno"> 587</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> r;</div> 545 <div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  }</div> 546 <div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  </div> 547 <div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <span class="keyword">virtual</span> std::codecvt_base::result </div> 548 <div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  do_out( std::mbstate_t &<span class="comment">/*std_state*/</span>,</div> 549 <div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  uchar <span class="keyword">const</span> *from,</div> 550 <div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  uchar <span class="keyword">const</span> *from_end,</div> 551 <div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  uchar <span class="keyword">const</span> *&from_next,</div> 552 <div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  <span class="keywordtype">char</span> *to,</div> 553 <div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <span class="keywordtype">char</span> *to_end,</div> 554 <div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <span class="keywordtype">char</span> *&to_next)<span class="keyword"> const</span></div> 555 <div class="line"><a name="l00598"></a><span class="lineno"> 598</span> <span class="keyword"> </span>{</div> 556 <div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  std::codecvt_base::result r=std::codecvt_base::ok;</div> 557 <div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> CodecvtImpl::state_type state_type;</div> 558 <div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  state_type cvt_state = implementation().initial_state(<a class="code" href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3a2386c685ac9676370a20d2802184fed1">generic_codecvt_base::from_unicode_state</a>);</div> 559 <div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  <span class="keywordflow">while</span>(to < to_end && from < from_end)</div> 560 <div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  {</div> 561 <div class="line"><a name="l00604"></a><span class="lineno"> 604</span> <span class="preprocessor">#ifdef DEBUG_CODECVT </span></div> 562 <div class="line"><a name="l00605"></a><span class="lineno"> 605</span> <span class="preprocessor"></span> std::cout << <span class="stringliteral">"Entering OUT --------------"</span> << std::endl;</div> 563 <div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  std::cout << <span class="stringliteral">"State "</span> << std::hex << state <<std::endl;</div> 564 <div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  std::cout << <span class="stringliteral">"Left in "</span> << std::dec << from_end - from << <span class="stringliteral">" out "</span> << to_end -to << std::endl;</div> 565 <div class="line"><a name="l00608"></a><span class="lineno"> 608</span> <span class="preprocessor">#endif </span></div> 566 <div class="line"><a name="l00609"></a><span class="lineno"> 609</span> <span class="preprocessor"></span> boost::uint32_t ch=0;</div> 567 <div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  ch = *from;</div> 568 <div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  <span class="keywordflow">if</span>(!<a class="code" href="namespaceboost_1_1locale_1_1utf.html#a189805c4e9f4c033ce5f88daf780e08e">boost::locale::utf::is_valid_codepoint</a>(ch)) {</div> 569 <div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  r=std::codecvt_base::error;</div> 570 <div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  <span class="keywordflow">break</span>;</div> 571 <div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  }</div> 572 <div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  boost::uint32_t len = implementation().from_unicode(cvt_state,ch,to,to_end);</div> 573 <div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <span class="keywordflow">if</span>(len == <a class="code" href="namespaceboost_1_1locale_1_1utf.html#a20dbe458fd18229a0e6c09888d031b38">boost::locale::utf::incomplete</a>) {</div> 574 <div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  r=std::codecvt_base::partial;</div> 575 <div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  <span class="keywordflow">break</span>;</div> 576 <div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  }</div> 577 <div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span>(len == <a class="code" href="namespaceboost_1_1locale_1_1utf.html#a30010000878c7732340bda8956b844fb">boost::locale::utf::illegal</a>) {</div> 578 <div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  r=std::codecvt_base::error;</div> 579 <div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  <span class="keywordflow">break</span>;</div> 580 <div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  }</div> 581 <div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  to+=len;</div> 582 <div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  from++;</div> 583 <div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  }</div> 584 <div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  from_next=from;</div> 585 <div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  to_next=to;</div> 586 <div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <span class="keywordflow">if</span>(r==std::codecvt_base::ok && from!=from_end)</div> 587 <div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  r = std::codecvt_base::partial;</div> 588 <div class="line"><a name="l00631"></a><span class="lineno"> 631</span> <span class="preprocessor">#ifdef DEBUG_CODECVT </span></div> 589 <div class="line"><a name="l00632"></a><span class="lineno"> 632</span> <span class="preprocessor"></span> std::cout << <span class="stringliteral">"Returning "</span>;</div> 590 <div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  <span class="keywordflow">switch</span>(r) {</div> 591 <div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  <span class="keywordflow">case</span> std::codecvt_base::ok:</div> 592 <div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  std::cout << <span class="stringliteral">"ok"</span> << std::endl;</div> 593 <div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  <span class="keywordflow">break</span>;</div> 594 <div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  <span class="keywordflow">case</span> std::codecvt_base::partial:</div> 595 <div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  std::cout << <span class="stringliteral">"partial"</span> << std::endl;</div> 596 <div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  <span class="keywordflow">break</span>;</div> 597 <div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  <span class="keywordflow">case</span> std::codecvt_base::error:</div> 598 <div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  std::cout << <span class="stringliteral">"error"</span> << std::endl;</div> 599 <div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  <span class="keywordflow">break</span>;</div> 600 <div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  <span class="keywordflow">default</span>:</div> 601 <div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  std::cout << <span class="stringliteral">"other"</span> << std::endl;</div> 602 <div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  <span class="keywordflow">break</span>;</div> 603 <div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  }</div> 604 <div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  std::cout << <span class="stringliteral">"State "</span> << std::hex << state <<std::endl;</div> 605 <div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  std::cout << <span class="stringliteral">"Left in "</span> << std::dec << from_end - from << <span class="stringliteral">" out "</span> << to_end -to << std::endl;</div> 606 <div class="line"><a name="l00649"></a><span class="lineno"> 649</span> <span class="preprocessor">#endif </span></div> 607 <div class="line"><a name="l00650"></a><span class="lineno"> 650</span> <span class="preprocessor"></span> <span class="keywordflow">return</span> r;</div> 608 <div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  }</div> 609 <div class="line"><a name="l00652"></a><span class="lineno"> 652</span> };</div> 610 <div class="line"><a name="l00653"></a><span class="lineno"> 653</span> </div> 611 <div class="line"><a name="l00654"></a><span class="lineno"> 654</span> </div> 612 <div class="line"><a name="l00655"></a><span class="lineno"> 655</span> <span class="keyword">template</span><<span class="keyword">typename</span> CharType,<span class="keyword">typename</span> CodecvtImpl></div> 613 <div class="line"><a name="l00656"></a><span class="lineno"><a class="line" href="classboost_1_1locale_1_1generic__codecvt_3_01CharType_00_01CodecvtImpl_00_011_01_4.html"> 656</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1locale_1_1generic__codecvt.html">generic_codecvt</a><CharType,CodecvtImpl,1> : <span class="keyword">public</span> std::codecvt<CharType,char,std::mbstate_t>, <span class="keyword">public</span> <a class="code" href="classboost_1_1locale_1_1generic__codecvt__base.html">generic_codecvt_base</a></div> 614 <div class="line"><a name="l00657"></a><span class="lineno"> 657</span> {</div> 615 <div class="line"><a name="l00658"></a><span class="lineno"> 658</span> <span class="keyword">public</span>:</div> 616 <div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  <span class="keyword">typedef</span> CharType uchar;</div> 617 <div class="line"><a name="l00660"></a><span class="lineno"> 660</span> </div> 618 <div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  CodecvtImpl <span class="keyword">const</span> &implementation()<span class="keyword"> const</span></div> 619 <div class="line"><a name="l00662"></a><span class="lineno"> 662</span> <span class="keyword"> </span>{</div> 620 <div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <span class="keywordflow">return</span> *<span class="keyword">static_cast<</span>CodecvtImpl <span class="keyword">const </span>*<span class="keyword">></span>(<span class="keyword">this</span>);</div> 621 <div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  }</div> 622 <div class="line"><a name="l00665"></a><span class="lineno"> 665</span> </div> 623 <div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  <a class="code" href="classboost_1_1locale_1_1generic__codecvt.html">generic_codecvt</a>(<span class="keywordtype">size_t</span> refs = 0) : std::codecvt<char,char,std::mbstate_t>(refs)</div> 624 <div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  {</div> 625 <div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  }</div> 626 <div class="line"><a name="l00669"></a><span class="lineno"> 669</span> };</div> 627 <div class="line"><a name="l00670"></a><span class="lineno"> 670</span> </div> 628 <div class="line"><a name="l00671"></a><span class="lineno"> 671</span> } <span class="comment">// locale</span></div> 629 <div class="line"><a name="l00672"></a><span class="lineno"> 672</span> } <span class="comment">// namespace boost</span></div> 630 <div class="line"><a name="l00673"></a><span class="lineno"> 673</span> </div> 631 <div class="line"><a name="l00674"></a><span class="lineno"> 674</span> <span class="preprocessor">#endif</span></div> 632 <div class="line"><a name="l00675"></a><span class="lineno"> 675</span> <span class="preprocessor"></span><span class="comment">// vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4</span></div> 633 <div class="ttc" id="namespaceboost_1_1locale_1_1utf_html_a189805c4e9f4c033ce5f88daf780e08e"><div class="ttname"><a href="namespaceboost_1_1locale_1_1utf.html#a189805c4e9f4c033ce5f88daf780e08e">boost::locale::utf::is_valid_codepoint</a></div><div class="ttdeci">bool is_valid_codepoint(code_point v)</div><div class="ttdoc">the function checks if v is a valid code point </div><div class="ttdef"><b>Definition:</b> utf.hpp:49</div></div> 634 <div class="ttc" id="classboost_1_1locale_1_1generic__codecvt__base_html_af28c4b64af6cbf2eb01c444e2cdf08c3a07029d87e1c62675db6b857d7b6214ec"><div class="ttname"><a href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3a07029d87e1c62675db6b857d7b6214ec">boost::locale::generic_codecvt_base::to_unicode_state</a></div><div class="ttdoc">The state would be used by to_unicode functions. </div><div class="ttdef"><b>Definition:</b> generic_codecvt.hpp:40</div></div> 635 <div class="ttc" id="namespaceboost_1_1locale_1_1utf_html_a20dbe458fd18229a0e6c09888d031b38"><div class="ttname"><a href="namespaceboost_1_1locale_1_1utf.html#a20dbe458fd18229a0e6c09888d031b38">boost::locale::utf::incomplete</a></div><div class="ttdeci">static const code_point incomplete</div><div class="ttdoc">Special constant that defines incomplete code point. </div><div class="ttdef"><b>Definition:</b> utf.hpp:44</div></div> 636 <div class="ttc" id="classboost_1_1locale_1_1generic__codecvt__base_html_af28c4b64af6cbf2eb01c444e2cdf08c3"><div class="ttname"><a href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3">boost::locale::generic_codecvt_base::initial_convertion_state</a></div><div class="ttdeci">initial_convertion_state</div><div class="ttdef"><b>Definition:</b> generic_codecvt.hpp:39</div></div> 637 <div class="ttc" id="namespaceboost_1_1locale_1_1utf_html_a30010000878c7732340bda8956b844fb"><div class="ttname"><a href="namespaceboost_1_1locale_1_1utf.html#a30010000878c7732340bda8956b844fb">boost::locale::utf::illegal</a></div><div class="ttdeci">static const code_point illegal</div><div class="ttdoc">Special constant that defines illegal code point. </div><div class="ttdef"><b>Definition:</b> utf.hpp:39</div></div> 638 <div class="ttc" id="classboost_1_1locale_1_1generic__codecvt__base_html"><div class="ttname"><a href="classboost_1_1locale_1_1generic__codecvt__base.html">boost::locale::generic_codecvt_base</a></div><div class="ttdoc">A base class that used to define constants for generic_codecvt. </div><div class="ttdef"><b>Definition:</b> generic_codecvt.hpp:34</div></div> 639 <div class="ttc" id="classboost_1_1locale_1_1generic__codecvt_html"><div class="ttname"><a href="classboost_1_1locale_1_1generic__codecvt.html">boost::locale::generic_codecvt</a></div><div class="ttdoc">Geneneric generic codecvt facet, various stateless encodings to UTF-16 and UTF-32 using wchar_t...</div><div class="ttdef"><b>Definition:</b> generic_codecvt.hpp:140</div></div> 640 <div class="ttc" id="classboost_1_1locale_1_1generic__codecvt__base_html_af28c4b64af6cbf2eb01c444e2cdf08c3a2386c685ac9676370a20d2802184fed1"><div class="ttname"><a href="classboost_1_1locale_1_1generic__codecvt__base.html#af28c4b64af6cbf2eb01c444e2cdf08c3a2386c685ac9676370a20d2802184fed1">boost::locale::generic_codecvt_base::from_unicode_state</a></div><div class="ttdoc">The state would be used by from_unicode functions. </div><div class="ttdef"><b>Definition:</b> generic_codecvt.hpp:41</div></div> 641 </div><!-- fragment --></div><!-- contents --> 642 </div><!-- doc-content --> 643 644 <li class="footer"> 645 © Copyright 2009-2012 Artyom Beilis, Distributed under the <a href="http://www.boost.org/LICENSE_1_0.txt">Boost Software License</a>, Version 1.0. 646 </li> 647 </ul> 648 </div> 649 </body> 650 </html> 651
