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<a href="bytestrie_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">*******************************************************************************</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">* Copyright (C) 2010-2012, International Business Machines</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">* Corporation and others. All Rights Reserved.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">*******************************************************************************</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">* file name: bytestrie.h</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">* encoding: US-ASCII</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">* tab size: 8 (not used)</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">* indentation:4</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">*</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">* created on: 2010sep25</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">* created by: Markus W. Scherer</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#ifndef __BYTESTRIE_H__</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor"></span><span class="preprocessor">#define __BYTESTRIE_H__</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include "<a class="code" href="utypes_8h.html">unicode/utypes.h</a>"</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "<a class="code" href="stringpiece_8h.html">unicode/stringpiece.h</a>"</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "<a class="code" href="uobject_8h.html">unicode/uobject.h</a>"</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "<a class="code" href="ustringtrie_8h.html">unicode/ustringtrie.h</a>"</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <a class="code" href="uversion_8h.html#a7d9374e037299886d4192b763b4c5e8b">U_NAMESPACE_BEGIN</a></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">class </span>ByteSink;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">class </span>BytesTrieBuilder;</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">class </span>CharString;</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">class </span>UVector32;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="classicu_1_1BytesTrie.html"> 48</a></span> <span class="keyword">class </span><a class="code" href="utypes_8h.html#a559955ec3bc692657c5d8b1c6de8e334">U_COMMON_API</a> <a class="code" href="classicu_1_1BytesTrie.html">BytesTrie</a> : <span class="keyword">public</span> <a class="code" href="classicu_1_1UMemory.html">UMemory</a> {</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="classicu_1_1BytesTrie.html#ad80f8e9d219cc6ccb159ea133244718f"> 64</a></span>  <a class="code" href="classicu_1_1BytesTrie.html#ad80f8e9d219cc6ccb159ea133244718f">BytesTrie</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *trieBytes)</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  : ownedArray_(<a class="code" href="utypes_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>), bytes_(static_cast<const uint8_t *>(trieBytes)),</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  pos_(bytes_), remainingMatchLength_(-1) {}</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  ~<a class="code" href="classicu_1_1BytesTrie.html">BytesTrie</a>();</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div>
<div class="line"><a name="l00080"></a><span class="lineno"><a class="line" href="classicu_1_1BytesTrie.html#aa228c8b87e2750808992ee65d8f6ae1e"> 80</a></span>  <a class="code" href="classicu_1_1BytesTrie.html#aa228c8b87e2750808992ee65d8f6ae1e">BytesTrie</a>(<span class="keyword">const</span> <a class="code" href="classicu_1_1BytesTrie.html">BytesTrie</a> &other)</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  : ownedArray_(<a class="code" href="utypes_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>), bytes_(other.bytes_),</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  pos_(other.pos_), remainingMatchLength_(other.remainingMatchLength_) {}</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div>
<div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="classicu_1_1BytesTrie.html#a48ae3393b8e84a4823fcd9fb1821cb43"> 89</a></span>  <a class="code" href="classicu_1_1BytesTrie.html">BytesTrie</a> &<a class="code" href="classicu_1_1BytesTrie.html#a48ae3393b8e84a4823fcd9fb1821cb43">reset</a>() {</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  pos_=bytes_;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  remainingMatchLength_=-1;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  }</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div>
<div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="classicu_1_1BytesTrie_1_1State.html"> 100</a></span>  <span class="keyword">class </span><a class="code" href="classicu_1_1BytesTrie_1_1State.html">State</a> : <span class="keyword">public</span> <a class="code" href="classicu_1_1UMemory.html">UMemory</a> {</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="classicu_1_1BytesTrie_1_1State.html#ace2b56645b7b51c3286845127019cdd4"> 106</a></span>  <a class="code" href="classicu_1_1BytesTrie_1_1State.html#ace2b56645b7b51c3286845127019cdd4">State</a>() { bytes=<a class="code" href="utypes_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>; }</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classicu_1_1BytesTrie.html">BytesTrie</a>;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keyword">const</span> uint8_t *bytes;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">const</span> uint8_t *pos;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  int32_t remainingMatchLength;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  };</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div>
<div class="line"><a name="l00122"></a><span class="lineno"><a class="line" href="classicu_1_1BytesTrie.html#a4f78aa42223eb6d4153bd37a5a3394cb"> 122</a></span>  <span class="keyword">const</span> <a class="code" href="classicu_1_1BytesTrie.html">BytesTrie</a> &<a class="code" href="classicu_1_1BytesTrie.html#a4f78aa42223eb6d4153bd37a5a3394cb">saveState</a>(<a class="code" href="classicu_1_1BytesTrie_1_1State.html">State</a> &state)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  state.bytes=bytes_;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  state.pos=pos_;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  state.remainingMatchLength=remainingMatchLength_;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  }</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div>
<div class="line"><a name="l00139"></a><span class="lineno"><a class="line" href="classicu_1_1BytesTrie.html#a460aed45ae9c2859f084d2e9b1418bd4"> 139</a></span>  <a class="code" href="classicu_1_1BytesTrie.html">BytesTrie</a> &<a class="code" href="classicu_1_1BytesTrie.html#a460aed45ae9c2859f084d2e9b1418bd4">resetToState</a>(<span class="keyword">const</span> <a class="code" href="classicu_1_1BytesTrie_1_1State.html">State</a> &state) {</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">if</span>(bytes_==state.bytes && bytes_!=<a class="code" href="utypes_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  pos_=state.pos;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  remainingMatchLength_=state.remainingMatchLength;</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  }</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  }</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <a class="code" href="ustringtrie_8h.html#a760046451d48a1551ba71162a31365bd">UStringTrieResult</a> current() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div>
<div class="line"><a name="l00163"></a><span class="lineno"><a class="line" href="classicu_1_1BytesTrie.html#a21e94ec7cc629081ed6c1cb501a95026"> 163</a></span>  <span class="keyword">inline</span> <a class="code" href="ustringtrie_8h.html#a760046451d48a1551ba71162a31365bd">UStringTrieResult</a> <a class="code" href="classicu_1_1BytesTrie.html#a21e94ec7cc629081ed6c1cb501a95026">first</a>(int32_t inByte) {</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  remainingMatchLength_=-1;</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">if</span>(inByte<0) {</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  inByte+=0x100;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  }</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> nextImpl(bytes_, inByte);</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  }</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <a class="code" href="ustringtrie_8h.html#a760046451d48a1551ba71162a31365bd">UStringTrieResult</a> next(int32_t inByte);</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <a class="code" href="ustringtrie_8h.html#a760046451d48a1551ba71162a31365bd">UStringTrieResult</a> next(<span class="keyword">const</span> <span class="keywordtype">char</span> *s, int32_t length);</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div>
<div class="line"><a name="l00206"></a><span class="lineno"><a class="line" href="classicu_1_1BytesTrie.html#a77e8a35daff9a53a382ee4cf05be3dbf"> 206</a></span>  <span class="keyword">inline</span> int32_t <a class="code" href="classicu_1_1BytesTrie.html#a77e8a35daff9a53a382ee4cf05be3dbf">getValue</a>()<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keyword">const</span> uint8_t *pos=pos_;</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  int32_t leadByte=*pos++;</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">// U_ASSERT(leadByte>=kMinValueLead);</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">return</span> readValue(pos, leadByte>>1);</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  }</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> </div>
<div class="line"><a name="l00222"></a><span class="lineno"><a class="line" href="classicu_1_1BytesTrie.html#a6e9c376428100ca9dc0830a0f98ee8fe"> 222</a></span>  <span class="keyword">inline</span> <a class="code" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> <a class="code" href="classicu_1_1BytesTrie.html#a6e9c376428100ca9dc0830a0f98ee8fe">hasUniqueValue</a>(int32_t &uniqueValue)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keyword">const</span> uint8_t *pos=pos_;</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="comment">// Skip the rest of a pending linear-match node.</span></div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keywordflow">return</span> pos!=<a class="code" href="utypes_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> && findUniqueValue(pos+remainingMatchLength_+1, <a class="code" href="umachine_8h.html#aa93f0eb578d23995850d61f7d61c55c1">FALSE</a>, uniqueValue);</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  }</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  int32_t getNextBytes(<a class="code" href="classicu_1_1ByteSink.html">ByteSink</a> &out) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> </div>
<div class="line"><a name="l00242"></a><span class="lineno"><a class="line" href="classicu_1_1BytesTrie_1_1Iterator.html"> 242</a></span>  <span class="keyword">class </span><a class="code" href="utypes_8h.html#a559955ec3bc692657c5d8b1c6de8e334">U_COMMON_API</a> <a class="code" href="classicu_1_1BytesTrie_1_1Iterator.html">Iterator</a> : <span class="keyword">public</span> <a class="code" href="classicu_1_1UMemory.html">UMemory</a> {</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <a class="code" href="classicu_1_1BytesTrie_1_1Iterator.html">Iterator</a>(<span class="keyword">const</span> <span class="keywordtype">void</span> *trieBytes, int32_t maxStringLength, <a class="code" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode);</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <a class="code" href="classicu_1_1BytesTrie_1_1Iterator.html">Iterator</a>(<span class="keyword">const</span> <a class="code" href="classicu_1_1BytesTrie.html">BytesTrie</a> &trie, int32_t maxStringLength, <a class="code" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode);</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  ~<a class="code" href="classicu_1_1BytesTrie_1_1Iterator.html">Iterator</a>();</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> </div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <a class="code" href="classicu_1_1BytesTrie_1_1Iterator.html">Iterator</a> &reset();</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> </div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <a class="code" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> hasNext() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> </div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <a class="code" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> next(<a class="code" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode);</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> </div>
<div class="line"><a name="l00309"></a><span class="lineno"><a class="line" href="classicu_1_1BytesTrie_1_1Iterator.html#aa4ebfcdd66e73c91edc6af5e30d51a9d"> 309</a></span>  <span class="keyword">const</span> <a class="code" href="classicu_1_1StringPiece.html">StringPiece</a> &<a class="code" href="classicu_1_1BytesTrie_1_1Iterator.html#aa4ebfcdd66e73c91edc6af5e30d51a9d">getString</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> sp_; }</div>
<div class="line"><a name="l00314"></a><span class="lineno"><a class="line" href="classicu_1_1BytesTrie_1_1Iterator.html#affe2c994a3069e04abe9307c54c6b06c"> 314</a></span>  int32_t <a class="code" href="classicu_1_1BytesTrie_1_1Iterator.html#affe2c994a3069e04abe9307c54c6b06c">getValue</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> value_; }</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> </div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <a class="code" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> truncateAndStop();</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span> </div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keyword">const</span> uint8_t *branchNext(<span class="keyword">const</span> uint8_t *pos, int32_t length, <a class="code" href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a> &errorCode);</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> </div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="keyword">const</span> uint8_t *bytes_;</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keyword">const</span> uint8_t *pos_;</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keyword">const</span> uint8_t *initialPos_;</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  int32_t remainingMatchLength_;</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  int32_t initialRemainingMatchLength_;</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> </div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  CharString *str_;</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <a class="code" href="classicu_1_1StringPiece.html">StringPiece</a> sp_;</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  int32_t maxLength_;</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  int32_t value_;</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> </div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="comment">// The stack stores pairs of integers for backtracking to another</span></div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="comment">// outbound edge of a branch node.</span></div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="comment">// The first integer is an offset from bytes_.</span></div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="comment">// The second integer has the str_->length() from before the node in bits 15..0,</span></div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="comment">// and the remaining branch length in bits 24..16. (Bits 31..25 are unused.)</span></div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="comment">// (We could store the remaining branch length minus 1 in bits 23..16 and not use bits 31..24,</span></div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="comment">// but the code looks more confusing that way.)</span></div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  UVector32 *stack_;</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  };</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> </div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span> <span class="keyword">private</span>:</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classicu_1_1BytesTrieBuilder.html">BytesTrieBuilder</a>;</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span> </div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <a class="code" href="classicu_1_1BytesTrie.html">BytesTrie</a>(<span class="keywordtype">void</span> *adoptBytes, <span class="keyword">const</span> <span class="keywordtype">void</span> *trieBytes)</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  : ownedArray_(static_cast<uint8_t *>(adoptBytes)),</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  bytes_(static_cast<const uint8_t *>(trieBytes)),</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  pos_(bytes_), remainingMatchLength_(-1) {}</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span> </div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="comment">// No assignment operator.</span></div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  BytesTrie &operator=(<span class="keyword">const</span> BytesTrie &other);</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> </div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> stop() {</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  pos_=<a class="code" href="utypes_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  }</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> </div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <span class="comment">// Reads a compact 32-bit integer.</span></div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="comment">// pos is already after the leadByte, and the lead byte is already shifted right by 1.</span></div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keyword">static</span> int32_t readValue(<span class="keyword">const</span> uint8_t *pos, int32_t leadByte);</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keyword">const</span> uint8_t *skipValue(<span class="keyword">const</span> uint8_t *pos, int32_t leadByte) {</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="comment">// U_ASSERT(leadByte>=kMinValueLead);</span></div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordflow">if</span>(leadByte>=(kMinTwoByteValueLead<<1)) {</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordflow">if</span>(leadByte<(kMinThreeByteValueLead<<1)) {</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  ++pos;</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(leadByte<(kFourByteValueLead<<1)) {</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  pos+=2;</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  pos+=3+((leadByte>>1)&1);</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  }</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  }</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keywordflow">return</span> pos;</div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  }</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keyword">const</span> uint8_t *skipValue(<span class="keyword">const</span> uint8_t *pos) {</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  int32_t leadByte=*pos++;</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="keywordflow">return</span> skipValue(pos, leadByte);</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  }</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span> </div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="comment">// Reads a jump delta and jumps.</span></div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keyword">static</span> <span class="keyword">const</span> uint8_t *jumpByDelta(<span class="keyword">const</span> uint8_t *pos);</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span> </div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keyword">const</span> uint8_t *skipDelta(<span class="keyword">const</span> uint8_t *pos) {</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  int32_t delta=*pos++;</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="keywordflow">if</span>(delta>=kMinTwoByteDeltaLead) {</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordflow">if</span>(delta<kMinThreeByteDeltaLead) {</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  ++pos;</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(delta<kFourByteDeltaLead) {</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  pos+=2;</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  pos+=3+(delta&1);</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  }</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  }</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="keywordflow">return</span> pos;</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  }</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> </div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keyword">static</span> <span class="keyword">inline</span> <a class="code" href="ustringtrie_8h.html#a760046451d48a1551ba71162a31365bd">UStringTrieResult</a> valueResult(int32_t node) {</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="keywordflow">return</span> (<a class="code" href="ustringtrie_8h.html#a760046451d48a1551ba71162a31365bd">UStringTrieResult</a>)(<a class="code" href="ustringtrie_8h.html#a760046451d48a1551ba71162a31365bda62f2fef78e07bab5f68fa803b581504f">USTRINGTRIE_INTERMEDIATE_VALUE</a>-(node&kValueIsFinal));</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  }</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span> </div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="comment">// Handles a branch node for both next(byte) and next(string).</span></div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <a class="code" href="ustringtrie_8h.html#a760046451d48a1551ba71162a31365bd">UStringTrieResult</a> branchNext(<span class="keyword">const</span> uint8_t *pos, int32_t length, int32_t inByte);</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span> </div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="comment">// Requires remainingLength_<0.</span></div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <a class="code" href="ustringtrie_8h.html#a760046451d48a1551ba71162a31365bd">UStringTrieResult</a> nextImpl(<span class="keyword">const</span> uint8_t *pos, int32_t inByte);</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span> </div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="comment">// Helper functions for hasUniqueValue().</span></div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="comment">// Recursively finds a unique value (or whether there is not a unique one)</span></div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="comment">// from a branch.</span></div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keyword">static</span> <span class="keyword">const</span> uint8_t *findUniqueValueFromBranch(<span class="keyword">const</span> uint8_t *pos, int32_t length,</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <a class="code" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> haveUniqueValue, int32_t &uniqueValue);</div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <span class="comment">// Recursively finds a unique value (or whether there is not a unique one)</span></div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="comment">// starting from a position on a node lead byte.</span></div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="keyword">static</span> <a class="code" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> findUniqueValue(<span class="keyword">const</span> uint8_t *pos, <a class="code" href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a> haveUniqueValue, int32_t &uniqueValue);</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span> </div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="comment">// Helper functions for getNextBytes().</span></div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="comment">// getNextBytes() when pos is on a branch node.</span></div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> getNextBranchBytes(<span class="keyword">const</span> uint8_t *pos, int32_t length, ByteSink &out);</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> append(ByteSink &out, <span class="keywordtype">int</span> c);</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> </div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="comment">// BytesTrie data structure</span></div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="comment">//</span></div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  <span class="comment">// The trie consists of a series of byte-serialized nodes for incremental</span></div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <span class="comment">// string/byte sequence matching. The root node is at the beginning of the trie data.</span></div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  <span class="comment">//</span></div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="comment">// Types of nodes are distinguished by their node lead byte ranges.</span></div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="comment">// After each node, except a final-value node, another node follows to</span></div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  <span class="comment">// encode match values or continue matching further bytes.</span></div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="comment">//</span></div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="comment">// Node types:</span></div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="comment">// - Value node: Stores a 32-bit integer in a compact, variable-length format.</span></div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="comment">// The value is for the string/byte sequence so far.</span></div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="comment">// One node bit indicates whether the value is final or whether</span></div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="comment">// matching continues with the next node.</span></div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="comment">// - Linear-match node: Matches a number of bytes.</span></div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="comment">// - Branch node: Branches to other nodes according to the current input byte.</span></div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="comment">// The node byte is the length of the branch (number of bytes to select from)</span></div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="comment">// minus 1. It is followed by a sub-node:</span></div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="comment">// - If the length is at most kMaxBranchLinearSubNodeLength, then</span></div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="comment">// there are length-1 (key, value) pairs and then one more comparison byte.</span></div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="comment">// If one of the key bytes matches, then the value is either a final value for</span></div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="comment">// the string/byte sequence so far, or a "jump" delta to the next node.</span></div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="comment">// If the last byte matches, then matching continues with the next node.</span></div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="comment">// (Values have the same encoding as value nodes.)</span></div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="comment">// - If the length is greater than kMaxBranchLinearSubNodeLength, then</span></div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="comment">// there is one byte and one "jump" delta.</span></div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  <span class="comment">// If the input byte is less than the sub-node byte, then "jump" by delta to</span></div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="comment">// the next sub-node which will have a length of length/2.</span></div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="comment">// (The delta has its own compact encoding.)</span></div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <span class="comment">// Otherwise, skip the "jump" delta to the next sub-node</span></div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="comment">// which will have a length of length-length/2.</span></div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span> </div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="comment">// Node lead byte values.</span></div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span> </div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="comment">// 00..0f: Branch node. If node!=0 then the length is node+1, otherwise</span></div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="comment">// the length is one more than the next byte.</span></div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> </div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="comment">// For a branch sub-node with at most this many entries, we drop down</span></div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="comment">// to a linear search.</span></div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMaxBranchLinearSubNodeLength=5;</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> </div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="comment">// 10..1f: Linear-match node, match 1..16 bytes and continue reading the next node.</span></div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMinLinearMatch=0x10;</div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMaxLinearMatchLength=0x10;</div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span> </div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="comment">// 20..ff: Variable-length value node.</span></div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <span class="comment">// If odd, the value is final. (Otherwise, intermediate value or jump delta.)</span></div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="comment">// Then shift-right by 1 bit.</span></div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="comment">// The remaining lead byte value indicates the number of following bytes (0..4)</span></div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <span class="comment">// and contains the value's top bits.</span></div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMinValueLead=kMinLinearMatch+kMaxLinearMatchLength; <span class="comment">// 0x20</span></div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="comment">// It is a final value if bit 0 is set.</span></div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kValueIsFinal=1;</div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span> </div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="comment">// Compact value: After testing bit 0, shift right by 1 and then use the following thresholds.</span></div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMinOneByteValueLead=kMinValueLead/2; <span class="comment">// 0x10</span></div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMaxOneByteValue=0x40; <span class="comment">// At least 6 bits in the first byte.</span></div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span> </div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMinTwoByteValueLead=kMinOneByteValueLead+kMaxOneByteValue+1; <span class="comment">// 0x51</span></div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMaxTwoByteValue=0x1aff;</div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span> </div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMinThreeByteValueLead=kMinTwoByteValueLead+(kMaxTwoByteValue>>8)+1; <span class="comment">// 0x6c</span></div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kFourByteValueLead=0x7e;</div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span> </div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  <span class="comment">// A little more than Unicode code points. (0x11ffff)</span></div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMaxThreeByteValue=((kFourByteValueLead-kMinThreeByteValueLead)<<16)-1;</div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span> </div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kFiveByteValueLead=0x7f;</div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span> </div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <span class="comment">// Compact delta integers.</span></div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMaxOneByteDelta=0xbf;</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMinTwoByteDeltaLead=kMaxOneByteDelta+1; <span class="comment">// 0xc0</span></div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMinThreeByteDeltaLead=0xf0;</div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kFourByteDeltaLead=0xfe;</div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kFiveByteDeltaLead=0xff;</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span> </div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMaxTwoByteDelta=((kMinThreeByteDeltaLead-kMinTwoByteDeltaLead)<<8)-1; <span class="comment">// 0x2fff</span></div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t kMaxThreeByteDelta=((kFourByteDeltaLead-kMinThreeByteDeltaLead)<<16)-1; <span class="comment">// 0xdffff</span></div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span> </div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  uint8_t *ownedArray_;</div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span> </div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <span class="comment">// Fixed value referencing the BytesTrie bytes.</span></div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="keyword">const</span> uint8_t *bytes_;</div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span> </div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="comment">// Iterator variables.</span></div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span> </div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="comment">// Pointer to next trie byte to read. NULL if no more matches.</span></div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <span class="keyword">const</span> uint8_t *pos_;</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  <span class="comment">// Remaining length of a linear-match node, minus 1. Negative if not in such a node.</span></div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  int32_t remainingMatchLength_;</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span> };</div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span> </div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span> <a class="code" href="uversion_8h.html#a3da1f00f3b02976ac53c014a3e4c0933">U_NAMESPACE_END</a></div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span> </div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span> <span class="preprocessor">#endif // __BYTESTRIE_H__</span></div>
<div class="ttc" id="classicu_1_1BytesTrieBuilder_html"><div class="ttname"><a href="classicu_1_1BytesTrieBuilder.html">icu::BytesTrieBuilder</a></div><div class="ttdoc">Builder class for BytesTrie. </div><div class="ttdef"><b>Definition:</b> <a href="bytestriebuilder_8h_source.html#l00039">bytestriebuilder.h:39</a></div></div>
<div class="ttc" id="classicu_1_1BytesTrie_html_a4f78aa42223eb6d4153bd37a5a3394cb"><div class="ttname"><a href="classicu_1_1BytesTrie.html#a4f78aa42223eb6d4153bd37a5a3394cb">icu::BytesTrie::saveState</a></div><div class="ttdeci">const BytesTrie & saveState(State &state) const </div><div class="ttdoc">Saves the state of this trie. </div><div class="ttdef"><b>Definition:</b> <a href="bytestrie_8h_source.html#l00122">bytestrie.h:122</a></div></div>
<div class="ttc" id="classicu_1_1BytesTrie_1_1State_html"><div class="ttname"><a href="classicu_1_1BytesTrie_1_1State.html">icu::BytesTrie::State</a></div><div class="ttdoc">BytesTrie state object, for saving a trie's current state and resetting the trie back to this state l...</div><div class="ttdef"><b>Definition:</b> <a href="bytestrie_8h_source.html#l00100">bytestrie.h:100</a></div></div>
<div class="ttc" id="ustringtrie_8h_html_a760046451d48a1551ba71162a31365bd"><div class="ttname"><a href="ustringtrie_8h.html#a760046451d48a1551ba71162a31365bd">UStringTrieResult</a></div><div class="ttdeci">UStringTrieResult</div><div class="ttdoc">Return values for BytesTrie::next(), UCharsTrie::next() and similar methods. </div><div class="ttdef"><b>Definition:</b> <a href="ustringtrie_8h_source.html#l00033">ustringtrie.h:33</a></div></div>
<div class="ttc" id="classicu_1_1BytesTrie_html_ad80f8e9d219cc6ccb159ea133244718f"><div class="ttname"><a href="classicu_1_1BytesTrie.html#ad80f8e9d219cc6ccb159ea133244718f">icu::BytesTrie::BytesTrie</a></div><div class="ttdeci">BytesTrie(const void *trieBytes)</div><div class="ttdoc">Constructs a BytesTrie reader instance. </div><div class="ttdef"><b>Definition:</b> <a href="bytestrie_8h_source.html#l00064">bytestrie.h:64</a></div></div>
<div class="ttc" id="classicu_1_1BytesTrie_1_1Iterator_html_aa4ebfcdd66e73c91edc6af5e30d51a9d"><div class="ttname"><a href="classicu_1_1BytesTrie_1_1Iterator.html#aa4ebfcdd66e73c91edc6af5e30d51a9d">icu::BytesTrie::Iterator::getString</a></div><div class="ttdeci">const StringPiece & getString() const </div><div class="ttdef"><b>Definition:</b> <a href="bytestrie_8h_source.html#l00309">bytestrie.h:309</a></div></div>
<div class="ttc" id="classicu_1_1ByteSink_html"><div class="ttname"><a href="classicu_1_1ByteSink.html">icu::ByteSink</a></div><div class="ttdoc">A ByteSink can be filled with bytes. </div><div class="ttdef"><b>Definition:</b> <a href="bytestream_8h_source.html#l00048">bytestream.h:48</a></div></div>
<div class="ttc" id="classicu_1_1BytesTrie_1_1Iterator_html_affe2c994a3069e04abe9307c54c6b06c"><div class="ttname"><a href="classicu_1_1BytesTrie_1_1Iterator.html#affe2c994a3069e04abe9307c54c6b06c">icu::BytesTrie::Iterator::getValue</a></div><div class="ttdeci">int32_t getValue() const </div><div class="ttdef"><b>Definition:</b> <a href="bytestrie_8h_source.html#l00314">bytestrie.h:314</a></div></div>
<div class="ttc" id="classicu_1_1BytesTrie_html_a77e8a35daff9a53a382ee4cf05be3dbf"><div class="ttname"><a href="classicu_1_1BytesTrie.html#a77e8a35daff9a53a382ee4cf05be3dbf">icu::BytesTrie::getValue</a></div><div class="ttdeci">int32_t getValue() const </div><div class="ttdoc">Returns a matching byte sequence's value if called immediately after current()/first()/next() returne...</div><div class="ttdef"><b>Definition:</b> <a href="bytestrie_8h_source.html#l00206">bytestrie.h:206</a></div></div>
<div class="ttc" id="classicu_1_1BytesTrie_html"><div class="ttname"><a href="classicu_1_1BytesTrie.html">icu::BytesTrie</a></div><div class="ttdoc">Light-weight, non-const reader class for a BytesTrie. </div><div class="ttdef"><b>Definition:</b> <a href="bytestrie_8h_source.html#l00048">bytestrie.h:48</a></div></div>
<div class="ttc" id="classicu_1_1BytesTrie_html_a48ae3393b8e84a4823fcd9fb1821cb43"><div class="ttname"><a href="classicu_1_1BytesTrie.html#a48ae3393b8e84a4823fcd9fb1821cb43">icu::BytesTrie::reset</a></div><div class="ttdeci">BytesTrie & reset()</div><div class="ttdoc">Resets this trie to its initial state. </div><div class="ttdef"><b>Definition:</b> <a href="bytestrie_8h_source.html#l00089">bytestrie.h:89</a></div></div>
<div class="ttc" id="stringpiece_8h_html"><div class="ttname"><a href="stringpiece_8h.html">stringpiece.h</a></div><div class="ttdoc">C++ API: StringPiece: Read-only byte string wrapper class. </div></div>
<div class="ttc" id="uversion_8h_html_a7d9374e037299886d4192b763b4c5e8b"><div class="ttname"><a href="uversion_8h.html#a7d9374e037299886d4192b763b4c5e8b">U_NAMESPACE_BEGIN</a></div><div class="ttdeci">#define U_NAMESPACE_BEGIN</div><div class="ttdoc">This is used to begin a declaration of a public ICU C++ API. </div><div class="ttdef"><b>Definition:</b> <a href="uversion_8h_source.html#l00129">uversion.h:129</a></div></div>
<div class="ttc" id="classicu_1_1BytesTrie_html_a21e94ec7cc629081ed6c1cb501a95026"><div class="ttname"><a href="classicu_1_1BytesTrie.html#a21e94ec7cc629081ed6c1cb501a95026">icu::BytesTrie::first</a></div><div class="ttdeci">UStringTrieResult first(int32_t inByte)</div><div class="ttdoc">Traverses the trie from the initial state for this input byte. </div><div class="ttdef"><b>Definition:</b> <a href="bytestrie_8h_source.html#l00163">bytestrie.h:163</a></div></div>
<div class="ttc" id="classicu_1_1BytesTrie_html_a6e9c376428100ca9dc0830a0f98ee8fe"><div class="ttname"><a href="classicu_1_1BytesTrie.html#a6e9c376428100ca9dc0830a0f98ee8fe">icu::BytesTrie::hasUniqueValue</a></div><div class="ttdeci">UBool hasUniqueValue(int32_t &uniqueValue) const </div><div class="ttdoc">Determines whether all byte sequences reachable from the current state map to the same value...</div><div class="ttdef"><b>Definition:</b> <a href="bytestrie_8h_source.html#l00222">bytestrie.h:222</a></div></div>
<div class="ttc" id="classicu_1_1BytesTrie_html_aa228c8b87e2750808992ee65d8f6ae1e"><div class="ttname"><a href="classicu_1_1BytesTrie.html#aa228c8b87e2750808992ee65d8f6ae1e">icu::BytesTrie::BytesTrie</a></div><div class="ttdeci">BytesTrie(const BytesTrie &other)</div><div class="ttdoc">Copy constructor, copies the other trie reader object and its state, but not the byte array which wil...</div><div class="ttdef"><b>Definition:</b> <a href="bytestrie_8h_source.html#l00080">bytestrie.h:80</a></div></div>
<div class="ttc" id="utypes_8h_html_a070d2ce7b6bb7e5c05602aa8c308d0c4"><div class="ttname"><a href="utypes_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a></div><div class="ttdeci">#define NULL</div><div class="ttdoc">Define NULL if necessary, to 0 for C++ and to ((void *)0) for C. </div><div class="ttdef"><b>Definition:</b> <a href="utypes_8h_source.html#l00186">utypes.h:186</a></div></div>
<div class="ttc" id="classicu_1_1BytesTrie_1_1State_html_ace2b56645b7b51c3286845127019cdd4"><div class="ttname"><a href="classicu_1_1BytesTrie_1_1State.html#ace2b56645b7b51c3286845127019cdd4">icu::BytesTrie::State::State</a></div><div class="ttdeci">State()</div><div class="ttdoc">Constructs an empty State. </div><div class="ttdef"><b>Definition:</b> <a href="bytestrie_8h_source.html#l00106">bytestrie.h:106</a></div></div>
<div class="ttc" id="classicu_1_1BytesTrie_1_1Iterator_html"><div class="ttname"><a href="classicu_1_1BytesTrie_1_1Iterator.html">icu::BytesTrie::Iterator</a></div><div class="ttdoc">Iterator for all of the (byte sequence, value) pairs in a BytesTrie. </div><div class="ttdef"><b>Definition:</b> <a href="bytestrie_8h_source.html#l00242">bytestrie.h:242</a></div></div>
<div class="ttc" id="uobject_8h_html"><div class="ttname"><a href="uobject_8h.html">uobject.h</a></div><div class="ttdoc">C++ API: Common ICU base class UObject. </div></div>
<div class="ttc" id="uversion_8h_html_a3da1f00f3b02976ac53c014a3e4c0933"><div class="ttname"><a href="uversion_8h.html#a3da1f00f3b02976ac53c014a3e4c0933">U_NAMESPACE_END</a></div><div class="ttdeci">#define U_NAMESPACE_END</div><div class="ttdoc">This is used to end a declaration of a public ICU C++ API. </div><div class="ttdef"><b>Definition:</b> <a href="uversion_8h_source.html#l00130">uversion.h:130</a></div></div>
<div class="ttc" id="utypes_8h_html_a3343c1c8a8377277046774691c98d78c"><div class="ttname"><a href="utypes_8h.html#a3343c1c8a8377277046774691c98d78c">UErrorCode</a></div><div class="ttdeci">UErrorCode</div><div class="ttdoc">Error code to replace exception handling, so that the code is compatible with all C++ compilers...</div><div class="ttdef"><b>Definition:</b> <a href="utypes_8h_source.html#l00476">utypes.h:476</a></div></div>
<div class="ttc" id="ustringtrie_8h_html"><div class="ttname"><a href="ustringtrie_8h.html">ustringtrie.h</a></div><div class="ttdoc">C API: Helper definitions for dictionary trie APIs. </div></div>
<div class="ttc" id="utypes_8h_html"><div class="ttname"><a href="utypes_8h.html">utypes.h</a></div><div class="ttdoc">Basic definitions for ICU, for both C and C++ APIs. </div></div>
<div class="ttc" id="umachine_8h_html_aa93f0eb578d23995850d61f7d61c55c1"><div class="ttname"><a href="umachine_8h.html#aa93f0eb578d23995850d61f7d61c55c1">FALSE</a></div><div class="ttdeci">#define FALSE</div><div class="ttdoc">The FALSE value of a UBool. </div><div class="ttdef"><b>Definition:</b> <a href="umachine_8h_source.html#l00208">umachine.h:208</a></div></div>
<div class="ttc" id="utypes_8h_html_a559955ec3bc692657c5d8b1c6de8e334"><div class="ttname"><a href="utypes_8h.html#a559955ec3bc692657c5d8b1c6de8e334">U_COMMON_API</a></div><div class="ttdeci">#define U_COMMON_API</div><div class="ttdoc">Set to export library symbols from inside the common library, and to import them from outside...</div><div class="ttdef"><b>Definition:</b> <a href="utypes_8h_source.html#l00357">utypes.h:357</a></div></div>
<div class="ttc" id="ustringtrie_8h_html_a760046451d48a1551ba71162a31365bda62f2fef78e07bab5f68fa803b581504f"><div class="ttname"><a href="ustringtrie_8h.html#a760046451d48a1551ba71162a31365bda62f2fef78e07bab5f68fa803b581504f">USTRINGTRIE_INTERMEDIATE_VALUE</a></div><div class="ttdoc">The input unit(s) continued a matching string and there is a value for the string so far...</div><div class="ttdef"><b>Definition:</b> <a href="ustringtrie_8h_source.html#l00064">ustringtrie.h:64</a></div></div>
<div class="ttc" id="classicu_1_1StringPiece_html"><div class="ttname"><a href="classicu_1_1StringPiece.html">icu::StringPiece</a></div><div class="ttdoc">A string-like object that points to a sized piece of memory. </div><div class="ttdef"><b>Definition:</b> <a href="stringpiece_8h_source.html#l00052">stringpiece.h:52</a></div></div>
<div class="ttc" id="classicu_1_1BytesTrie_html_a460aed45ae9c2859f084d2e9b1418bd4"><div class="ttname"><a href="classicu_1_1BytesTrie.html#a460aed45ae9c2859f084d2e9b1418bd4">icu::BytesTrie::resetToState</a></div><div class="ttdeci">BytesTrie & resetToState(const State &state)</div><div class="ttdoc">Resets this trie to the saved state. </div><div class="ttdef"><b>Definition:</b> <a href="bytestrie_8h_source.html#l00139">bytestrie.h:139</a></div></div>
<div class="ttc" id="classicu_1_1UMemory_html"><div class="ttname"><a href="classicu_1_1UMemory.html">icu::UMemory</a></div><div class="ttdoc">UMemory is the common ICU base class. </div><div class="ttdef"><b>Definition:</b> <a href="uobject_8h_source.html#l00110">uobject.h:110</a></div></div>
<div class="ttc" id="umachine_8h_html_a349ef00011f20ccd1d3b424445681aa5"><div class="ttname"><a href="umachine_8h.html#a349ef00011f20ccd1d3b424445681aa5">UBool</a></div><div class="ttdeci">int8_t UBool</div><div class="ttdoc">The ICU boolean type. </div><div class="ttdef"><b>Definition:</b> <a href="umachine_8h_source.html#l00200">umachine.h:200</a></div></div>
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