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<div id="projectname">tesseract
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 <span id="projectnumber">3.03</span>
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<a href="#pub-methods">Public Member Functions</a> </div>
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<div class="title">tesseract::TessLangModel Class Reference</div> </div>
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<div class="contents">
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<!-- doxytag: class="tesseract::TessLangModel" --><!-- doxytag: inherits="tesseract::LangModel" -->
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<p><code>#include <<a class="el" href="a01012_source.html">tess_lang_model.h</a>></code></p>
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<div class="dynheader">
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Inheritance diagram for tesseract::TessLangModel:</div>
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<div class="dyncontent">
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<img src="a00612.png" usemap="#tesseract::TessLangModel_map" alt=""/>
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<map id="tesseract::TessLangModel_map" name="tesseract::TessLangModel_map">
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<area href="a00445.html" alt="tesseract::LangModel" shape="rect" coords="0,0,158,24"/>
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<p><a href="a01850.html">List of all members.</a></p>
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<table class="memberdecls">
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<tr><td colspan="2"><h2><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00612.html#a23d5290b102bb43428957c4c4a96e6d6">TessLangModel</a> (const string &lm_params, const string &data_file_path, bool load_system_dawg, <a class="el" href="a00606.html">TessdataManager</a> *tessdata_manager, <a class="el" href="a00339.html">CubeRecoContext</a> *cntxt)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00612.html#a3976ab4c324b005b9165609e3b077dbc">~TessLangModel</a> ()</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00611.html">TessLangModEdge</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00612.html#a939ea7ad8b064d8167b3c7019bf82d9f">Root</a> ()</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00444.html">LangModEdge</a> ** </td><td class="memItemRight" valign="bottom"><a class="el" href="a00612.html#abd9a2fc77fe18caeb4a8f17020b460a4">GetEdges</a> (<a class="el" href="a00300.html">CharAltList</a> *alt_list, <a class="el" href="a00444.html">LangModEdge</a> *edge, int *edge_cnt)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="a00612.html#a2c303d6052f7b99c6b65a497592e5e2e">IsValidSequence</a> (const <a class="el" href="a01265.html#aea2c6172b0ca77907e29cd018595b425">char_32</a> *sequence, bool eow_flag, <a class="el" href="a00444.html">LangModEdge</a> **final_edge=NULL)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="a00612.html#ae012b6f6dec52e66ccc7b78fa8975b10">IsLeadingPunc</a> (<a class="el" href="a01265.html#aea2c6172b0ca77907e29cd018595b425">char_32</a> ch)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="a00612.html#aed986e1547e8faf18a522ef074e0413a">IsTrailingPunc</a> (<a class="el" href="a01265.html#aea2c6172b0ca77907e29cd018595b425">char_32</a> ch)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="a00612.html#a69d61128a73ddf1e9ce709a3808c6530">IsDigit</a> (<a class="el" href="a01265.html#aea2c6172b0ca77907e29cd018595b425">char_32</a> ch)</td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00612.html#a1fc3e4c81803a84dba0ff7dd1e0ec936">RemoveInvalidCharacters</a> (string *lm_str)</td></tr>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
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<div class="textblock">
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<p>Definition at line <a class="el" href="a01012_source.html#l00038">38</a> of file <a class="el" href="a01012_source.html">tess_lang_model.h</a>.</p>
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</div><hr/><h2>Constructor & Destructor Documentation</h2>
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<a class="anchor" id="a23d5290b102bb43428957c4c4a96e6d6"></a><!-- doxytag: member="tesseract::TessLangModel::TessLangModel" ref="a23d5290b102bb43428957c4c4a96e6d6" args="(const string &lm_params, const string &data_file_path, bool load_system_dawg, TessdataManager *tessdata_manager, CubeRecoContext *cntxt)" -->
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<td class="memname"><a class="el" href="a00612.html#a23d5290b102bb43428957c4c4a96e6d6">tesseract::TessLangModel::TessLangModel</a> </td>
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<td class="paramtype">const string & </td>
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<td class="paramname"><em>lm_params</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const string & </td>
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<td class="paramname"><em>data_file_path</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">bool </td>
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<td class="paramname"><em>load_system_dawg</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="a00606.html">TessdataManager</a> * </td>
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<td class="paramname"><em>tessdata_manager</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="a00339.html">CubeRecoContext</a> * </td>
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<td class="paramname"><em>cntxt</em> </td>
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<p>Definition at line <a class="el" href="a01011_source.html#l00060">60</a> of file <a class="el" href="a01011_source.html">tess_lang_model.cpp</a>.</p>
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<div class="fragment"><pre class="fragment"> {
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has_case_ = cntxt_-><a class="code" href="a00339.html#a935e5758a4674f439814ec57b8c4d42b">HasCase</a>();
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<span class="comment">// Load the rest of the language model elements from file</span>
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LoadLangModelElements(lm_params);
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<span class="comment">// Load word_dawgs_ if needed.</span>
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<span class="keywordflow">if</span> (tessdata_manager->SeekToStart(<a class="code" href="a01265.html#a5f278974ef80900b460194614d4f1899a87310a274403592ee7b1bd07e8b29973">TESSDATA_CUBE_UNICHARSET</a>)) {
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word_dawgs_ = <span class="keyword">new</span> <a class="code" href="a01265.html#a8dc259fa09d9302b96f5b3d2aad10c9f">DawgVector</a>();
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<span class="keywordflow">if</span> (load_system_dawg &&
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tessdata_manager->SeekToStart(<a class="code" href="a01265.html#a5f278974ef80900b460194614d4f1899a445f2a31c9940f2027a67ba8f8630f9f">TESSDATA_CUBE_SYSTEM_DAWG</a>)) {
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<span class="comment">// The last parameter to the Dawg constructor (the debug level) is set to</span>
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<span class="comment">// false, until Cube has a way to express its preferred debug level.</span>
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*word_dawgs_ += <span class="keyword">new</span> SquishedDawg(tessdata_manager->GetDataFilePtr(),
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<a class="code" href="a01265.html#a07c41f251f1782c60df4e626c35d2151a9c67e397ff6d57a705cd4cd4524a2b34">DAWG_TYPE_WORD</a>,
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cntxt_-><a class="code" href="a00339.html#a5e8e654a7db7d086d7e05d08bb53fa97">Lang</a>().c_str(),
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<a class="code" href="a00788.html#a18e2c75cefe9e5b78e8ce41aa5fa25bca616bdbcaed7dd414823b303af5c8b1f1">SYSTEM_DAWG_PERM</a>, <span class="keyword">false</span>);
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} <span class="keywordflow">else</span> {
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<a class="anchor" id="a3976ab4c324b005b9165609e3b077dbc"></a><!-- doxytag: member="tesseract::TessLangModel::~TessLangModel" ref="a3976ab4c324b005b9165609e3b077dbc" args="()" -->
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<td class="memname"><a class="el" href="a00612.html#a3976ab4c324b005b9165609e3b077dbc">tesseract::TessLangModel::~TessLangModel</a> </td>
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<td class="paramname"></td><td>)</td>
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<td><code> [inline]</code></td>
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<p>Definition at line <a class="el" href="a01012_source.html#l00045">45</a> of file <a class="el" href="a01012_source.html">tess_lang_model.h</a>.</p>
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<div class="fragment"><pre class="fragment"> {
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<span class="keywordflow">if</span> (word_dawgs_ != NULL) {
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word_dawgs_-><a class="code" href="a00403.html#a98f62dccd75224a60437c2761bd215cd">delete_data_pointers</a>();
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<span class="keyword">delete</span> word_dawgs_;
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<hr/><h2>Member Function Documentation</h2>
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<a class="anchor" id="abd9a2fc77fe18caeb4a8f17020b460a4"></a><!-- doxytag: member="tesseract::TessLangModel::GetEdges" ref="abd9a2fc77fe18caeb4a8f17020b460a4" args="(CharAltList *alt_list, LangModEdge *edge, int *edge_cnt)" -->
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<td class="memname"><a class="el" href="a00444.html">LangModEdge</a> ** <a class="el" href="a00612.html#abd9a2fc77fe18caeb4a8f17020b460a4">tesseract::TessLangModel::GetEdges</a> </td>
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<td class="paramtype"><a class="el" href="a00300.html">CharAltList</a> * </td>
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<td class="paramname"><em>alt_list</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="a00444.html">LangModEdge</a> * </td>
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<td class="paramname"><em>edge</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">int * </td>
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<td class="paramname"><em>edge_cnt</em> </td>
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<td></td><td><code> [virtual]</code></td>
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<p>Implements <a class="el" href="a00445.html#a61071a0736427f808d7134aeeb456701">tesseract::LangModel</a>.</p>
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<p>Definition at line <a class="el" href="a01011_source.html#l00169">169</a> of file <a class="el" href="a01011_source.html">tess_lang_model.cpp</a>.</p>
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<div class="fragment"><pre class="fragment"> {
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TessLangModEdge *tess_lm_edge =
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<span class="keyword">reinterpret_cast<</span>TessLangModEdge *<span class="keyword">></span>(lang_mod_edge);
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LangModEdge **edge_array = NULL;
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<span class="comment">// if we are starting from the root, we'll instantiate every DAWG</span>
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<span class="comment">// and get the all the edges that emerge from the root</span>
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<span class="keywordflow">if</span> (tess_lm_edge == NULL) {
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<span class="comment">// get DAWG count from Tesseract</span>
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<span class="keywordtype">int</span> dawg_cnt = NumDawgs();
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<span class="comment">// preallocate the edge buffer</span>
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(*edge_cnt) = dawg_cnt * max_edge_;
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edge_array = <span class="keyword">new</span> LangModEdge *[(*edge_cnt)];
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<span class="keywordflow">if</span> (edge_array == NULL) {
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<span class="keywordflow">return</span> NULL;
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<span class="keywordflow">for</span> (<span class="keywordtype">int</span> dawg_idx = (*edge_cnt) = 0; dawg_idx < dawg_cnt; dawg_idx++) {
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<span class="keyword">const</span> Dawg *curr_dawg = GetDawg(dawg_idx);
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<span class="comment">// Only look through word Dawgs (since there is a special way of</span>
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<span class="comment">// handling numbers and punctuation).</span>
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<span class="keywordflow">if</span> (curr_dawg->type() == <a class="code" href="a01265.html#a07c41f251f1782c60df4e626c35d2151a9c67e397ff6d57a705cd4cd4524a2b34">DAWG_TYPE_WORD</a>) {
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(*edge_cnt) += FanOut(alt_list, curr_dawg, 0, 0, NULL, <span class="keyword">true</span>,
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edge_array + (*edge_cnt));
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} <span class="comment">// dawg</span>
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(*edge_cnt) += FanOut(alt_list, number_dawg_, 0, 0, NULL, <span class="keyword">true</span>,
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edge_array + (*edge_cnt));
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<span class="comment">// OOD: it is intentionally not added to the list to make sure it comes</span>
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<span class="comment">// at the end</span>
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(*edge_cnt) += FanOut(alt_list, ood_dawg_, 0, 0, NULL, <span class="keyword">true</span>,
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edge_array + (*edge_cnt));
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<span class="comment">// set the root flag for all root edges</span>
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<span class="keywordflow">for</span> (<span class="keywordtype">int</span> edge_idx = 0; edge_idx < (*edge_cnt); edge_idx++) {
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edge_array[edge_idx]->SetRoot(<span class="keyword">true</span>);
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} <span class="keywordflow">else</span> { <span class="comment">// not starting at the root</span>
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<span class="comment">// preallocate the edge buffer</span>
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(*edge_cnt) = max_edge_;
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<span class="comment">// allocate memory for edges</span>
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edge_array = <span class="keyword">new</span> LangModEdge *[(*edge_cnt)];
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<span class="keywordflow">if</span> (edge_array == NULL) {
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<span class="keywordflow">return</span> NULL;
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<span class="comment">// get the FanOut edges from the root of each dawg</span>
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(*edge_cnt) = FanOut(alt_list,
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tess_lm_edge->GetDawg(),
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tess_lm_edge->EndEdge(), tess_lm_edge->EdgeMask(),
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tess_lm_edge->EdgeString(), <span class="keyword">false</span>, edge_array);
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<span class="keywordflow">return</span> edge_array;
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<a class="anchor" id="a69d61128a73ddf1e9ce709a3808c6530"></a><!-- doxytag: member="tesseract::TessLangModel::IsDigit" ref="a69d61128a73ddf1e9ce709a3808c6530" args="(char_32 ch)" -->
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<td class="paramtype"><a class="el" href="a01265.html#aea2c6172b0ca77907e29cd018595b425">char_32</a> </td>
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<td class="paramname"><em>ch</em></td><td>)</td>
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<td><code> [virtual]</code></td>
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<p>Implements <a class="el" href="a00445.html#aae119709c73d00d731c65588be763a1d">tesseract::LangModel</a>.</p>
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<p>Definition at line <a class="el" href="a01011_source.html#l00162">162</a> of file <a class="el" href="a01011_source.html">tess_lang_model.cpp</a>.</p>
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<div class="fragment"><pre class="fragment"> {
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<span class="keywordflow">return</span> digits_.find(ch) != string::npos;
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<td class="memname">bool <a class="el" href="a00612.html#ae012b6f6dec52e66ccc7b78fa8975b10">tesseract::TessLangModel::IsLeadingPunc</a> </td>
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<td class="paramtype"><a class="el" href="a01265.html#aea2c6172b0ca77907e29cd018595b425">char_32</a> </td>
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<td class="paramname"><em>ch</em></td><td>)</td>
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<td><code> [virtual]</code></td>
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<p>Implements <a class="el" href="a00445.html#ade13ad9a3c3f6bb19a1071aa20bffb4b">tesseract::LangModel</a>.</p>
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<p>Definition at line <a class="el" href="a01011_source.html#l00154">154</a> of file <a class="el" href="a01011_source.html">tess_lang_model.cpp</a>.</p>
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<div class="fragment"><pre class="fragment"> {
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<span class="keywordflow">return</span> lead_punc_.find(ch) != string::npos;
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<td class="memname">bool <a class="el" href="a00612.html#aed986e1547e8faf18a522ef074e0413a">tesseract::TessLangModel::IsTrailingPunc</a> </td>
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<td class="paramtype"><a class="el" href="a01265.html#aea2c6172b0ca77907e29cd018595b425">char_32</a> </td>
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<td class="paramname"><em>ch</em></td><td>)</td>
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<td><code> [virtual]</code></td>
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<p>Implements <a class="el" href="a00445.html#a0235bd607e1d0cd00082661e0b71d495">tesseract::LangModel</a>.</p>
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<p>Definition at line <a class="el" href="a01011_source.html#l00158">158</a> of file <a class="el" href="a01011_source.html">tess_lang_model.cpp</a>.</p>
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<div class="fragment"><pre class="fragment"> {
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<span class="keywordflow">return</span> trail_punc_.find(ch) != string::npos;
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<a class="anchor" id="a2c303d6052f7b99c6b65a497592e5e2e"></a><!-- doxytag: member="tesseract::TessLangModel::IsValidSequence" ref="a2c303d6052f7b99c6b65a497592e5e2e" args="(const char_32 *sequence, bool eow_flag, LangModEdge **final_edge=NULL)" -->
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<td class="paramtype">const <a class="el" href="a01265.html#aea2c6172b0ca77907e29cd018595b425">char_32</a> * </td>
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<td class="paramname"><em>sequence</em>, </td>
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<td class="paramtype">bool </td>
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<td class="paramname"><em>eow_flag</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="a00444.html">LangModEdge</a> ** </td>
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<td class="paramname"><em>final_edge</em> = <code>NULL</code> </td>
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<td></td><td><code> [virtual]</code></td>
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<p>Implements <a class="el" href="a00445.html#a8b2edb01fa6b82d7a0eba6fb28717494">tesseract::LangModel</a>.</p>
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<p>Definition at line <a class="el" href="a01011_source.html#l00145">145</a> of file <a class="el" href="a01011_source.html">tess_lang_model.cpp</a>.</p>
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<div class="fragment"><pre class="fragment"> {
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<span class="keywordflow">if</span> (final_edge != NULL) {
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(*final_edge) = NULL;
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<span class="keywordflow">return</span> <a class="code" href="a00612.html#a2c303d6052f7b99c6b65a497592e5e2e">IsValidSequence</a>(NULL, sequence, eow_flag, final_edge);
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<a class="anchor" id="a1fc3e4c81803a84dba0ff7dd1e0ec936"></a><!-- doxytag: member="tesseract::TessLangModel::RemoveInvalidCharacters" ref="a1fc3e4c81803a84dba0ff7dd1e0ec936" args="(string *lm_str)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">void <a class="el" href="a00612.html#a1fc3e4c81803a84dba0ff7dd1e0ec936">tesseract::TessLangModel::RemoveInvalidCharacters</a> </td>
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<td class="paramtype">string * </td>
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<td class="paramname"><em>lm_str</em></td><td>)</td>
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<p>Definition at line <a class="el" href="a01011_source.html#l00482">482</a> of file <a class="el" href="a01011_source.html">tess_lang_model.cpp</a>.</p>
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<div class="fragment"><pre class="fragment"> {
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CharSet *char_set = cntxt_-><a class="code" href="a00339.html#ab9c6b5f85ef4baa38ad8ef9c949b8dee">CharacterSet</a>();
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<a class="code" href="a01265.html#a5e51e225e3ac13c918ed9f77715fa041">tesseract::string_32</a> lm_str32;
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<a class="code" href="a01265.html#a903ffe993b52191b0b18a019dd790276">CubeUtils::UTF8ToUTF32</a>(lm_str->c_str(), &lm_str32);
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<span class="keywordtype">int</span> len = <a class="code" href="a00343.html#a88fe596e3dcadab7909c0bff64f61f59">CubeUtils::StrLen</a>(lm_str32.c_str());
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<a class="code" href="a01265.html#aea2c6172b0ca77907e29cd018595b425">char_32</a> *clean_str32 = <span class="keyword">new</span> <a class="code" href="a01265.html#aea2c6172b0ca77907e29cd018595b425">char_32</a>[len + 1];
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<span class="keywordflow">if</span> (!clean_str32)
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<span class="keywordflow">return</span>;
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<span class="keywordtype">int</span> clean_len = 0;
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<span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < len; ++i) {
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<span class="keywordtype">int</span> class_id = char_set->ClassID((<a class="code" href="a01265.html#aea2c6172b0ca77907e29cd018595b425">char_32</a>)lm_str32[i]);
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<span class="keywordflow">if</span> (class_id != INVALID_UNICHAR_ID) {
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clean_str32[clean_len] = lm_str32[i];
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clean_str32[clean_len] = 0;
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<span class="keywordflow">if</span> (clean_len < len) {
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<a class="code" href="a01265.html#a34f64417c417283fbb3cbdd220e77ae2">CubeUtils::UTF32ToUTF8</a>(clean_str32, lm_str);
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<span class="keyword">delete</span> [] clean_str32;
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<a class="anchor" id="a939ea7ad8b064d8167b3c7019bf82d9f"></a><!-- doxytag: member="tesseract::TessLangModel::Root" ref="a939ea7ad8b064d8167b3c7019bf82d9f" args="()" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname"><a class="el" href="a00611.html">TessLangModEdge</a>* <a class="el" href="a00612.html#a939ea7ad8b064d8167b3c7019bf82d9f">tesseract::TessLangModel::Root</a> </td>
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<td class="paramname"></td><td>)</td>
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<td><code> [inline, virtual]</code></td>
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<p>Implements <a class="el" href="a00445.html#a46178bf09d08aa9c8048adb0a8561b75">tesseract::LangModel</a>.</p>
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<p>Definition at line <a class="el" href="a01012_source.html#l00053">53</a> of file <a class="el" href="a01012_source.html">tess_lang_model.h</a>.</p>
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<div class="fragment"><pre class="fragment"> {
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<span class="keywordflow">return</span> NULL;
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<hr/>The documentation for this class was generated from the following files:<ul>
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<li>/usr/local/google/home/jbreiden/tesseract-ocr-read-only/cube/<a class="el" href="a01012_source.html">tess_lang_model.h</a></li>
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<li>/usr/local/google/home/jbreiden/tesseract-ocr-read-only/cube/<a class="el" href="a01011_source.html">tess_lang_model.cpp</a></li>
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<li class="navelem"><a class="el" href="a01265.html">tesseract</a> </li>
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<li class="navelem"><a class="el" href="a00612.html">TessLangModel</a> </li>
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<li class="footer">Generated on Mon Feb 3 2014 10:59:21 for tesseract by
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.6.1 </li>
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