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POsolr autosuggest with diacritics
 

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    <p>I'm using solr4 with the <code>TermsComponent</code> Autosuggest (as described <a href="http://wiki.apache.org/solr/TermsComponent" rel="nofollow">here</a>) We're doing a regEx "startsWith"-search, that ignores upper/lower-case, the whole searchQuery looks like this:</p> <pre><code>&lt;solr&gt;/terms ?terms.fl=name &amp;terms=true &amp;terms.limit=5 &amp;terms.regex=&lt;term&gt;.* &amp;terms.regex.flag=case_insensitive &amp;qt=%2Fterms </code></pre> <p>Let me give you a few examples what that returns:</p> <pre><code>test -&gt; Test Listing; test lowercase Test -&gt; Test Listing; test lowercase </code></pre> <p>Unfortunately, this solution can't handle diacritics, umlaute, accents .. So the following won't work:</p> <pre><code>têst -&gt; Test Listing; test lowercase; Têst áccènt Test -&gt; Test Listing; test lowercase; Têst áccènt </code></pre> <p>The field is a <code>string</code> - I've tried with a tokenized <code>test_en</code> as well, but without success</p> <pre><code>&lt;field name="name" type="string" indexed="true" stored="true" required="true" /&gt; </code></pre> <p>What's the best way to enable bidirectional accent-searching for this autosuggest?</p> <hr> <p>Edit: Changes for AnalyzerSuggester:</p> <pre><code> &lt;searchComponent class="solr.SpellCheckComponent" name="autosuggest"&gt; &lt;lst name="spellchecker"&gt; &lt;str name="name"&gt;autosuggest&lt;/str&gt; &lt;str name="classname"&gt;org.apache.solr.spelling.suggest.Suggester&lt;/str&gt; &lt;str name="lookupImpl"&gt;org.apache.solr.spelling.suggest.fst.AnalyzingLookupFactory&lt;/str&gt; &lt;str name="storeDir"&gt;autosuggest&lt;/str&gt; &lt;str name="buildOnCommit"&gt;true&lt;/str&gt; &lt;str name="field"&gt;asug&lt;/str&gt; &lt;str name="suggestAnalyzerFieldType"&gt;text_asug&lt;/str&gt; &lt;!-- Suggester properties --&gt; &lt;bool name="exactMatchFirst"&gt;true&lt;/bool&gt; &lt;/lst&gt; &lt;/searchComponent&gt; &lt;requestHandler class="org.apache.solr.handler.component.SearchHandler" name="/autosuggest"&gt; &lt;lst name="defaults"&gt; &lt;str name="spellcheck"&gt;true&lt;/str&gt; &lt;str name="spellcheck.dictionary"&gt;autosuggest&lt;/str&gt; &lt;str name="spellcheck.onlyMorePopular"&gt;true&lt;/str&gt; &lt;str name="spellcheck.count"&gt;5&lt;/str&gt; &lt;str name="spellcheck.collate"&gt;true&lt;/str&gt; &lt;/lst&gt; &lt;arr name="components"&gt; &lt;str&gt;autosuggest&lt;/str&gt; &lt;/arr&gt; &lt;/requestHandler&gt; </code></pre> <p>.</p> <pre><code>&lt;fieldType name="text_asug" class="solr.TextField" positionIncrementGap="100"&gt; &lt;analyzer type="index"&gt; &lt;tokenizer class="solr.KeywordTokenizerFactory"/&gt; &lt;filter class="solr.LowerCaseFilterFactory"/&gt; &lt;filter class="solr.ASCIIFoldingFilterFactory"/&gt; &lt;/analyzer&gt; &lt;analyzer type="query"&gt; &lt;tokenizer class="solr.KeywordTokenizerFactory"/&gt; &lt;filter class="solr.LowerCaseFilterFactory"/&gt; &lt;filter class="solr.ASCIIFoldingFilterFactory"/&gt; &lt;/analyzer&gt; &lt;/fieldType&gt; </code></pre>
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