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POXapian filtering with whitespace
 

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  1. POXapian filtering with whitespace
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    <p>How to filter search result with query with has white space.</p> <pre><code>#include &lt;iostream&gt; #include &lt;string&gt; #include &lt;xapian.h&gt; struct document{ std::string title; std::string content; std::string url; }; void indexData(document d) { try { Xapian::WritableDatabase db("/Users/ramesh/Desktop/xapian", Xapian::DB_CREATE_OR_OPEN); Xapian::TermGenerator indexer; Xapian::Stem stemmer("english"); indexer.set_stemmer(stemmer); Xapian::Document doc; doc.set_data(d.title); indexer.set_document(doc); indexer.index_text(d.title,1,"title"); indexer.index_text(d.content,1,"content"); indexer.index_text(d.url,1,"url"); doc.add_boolean_term("title"+d.title); db.replace_document(d.url,doc); db.commit(); } catch (const Xapian::Error &amp;e) { std::cout &lt;&lt; e.get_description() &lt;&lt; std::endl; exit(1); } } void searchData(std::string query_string){ try{ Xapian::Database db("/Users/ramesh/Desktop/xapian"); Xapian::Enquire enquire(db); Xapian::QueryParser qp; Xapian::Stem stemmer("english"); qp.set_default_op(Xapian::Query::OP_FILTER); qp.set_stemmer(stemmer); qp.add_prefix("","title"); qp.add_prefix("","content"); qp.add_boolean_prefix("title","title"); qp.set_database(db); qp.set_stemming_strategy(Xapian::QueryParser::STEM_SOME); Xapian::Query query = qp.parse_query(query_string); std::cout &lt;&lt; "Parsed query is: " &lt;&lt; query.get_description() &lt;&lt; std::endl; enquire.set_query(query); Xapian::MSet matches = enquire.get_mset(0, 10); std::cout &lt;&lt; matches.get_matches_estimated() &lt;&lt; " results found.\n"; std::cout &lt;&lt; "Matches 1-" &lt;&lt; matches.size() &lt;&lt; ":\n" &lt;&lt; std::endl; for (Xapian::MSetIterator i = matches.begin(); i != matches.end(); ++i) { std::cout &lt;&lt; i.get_rank() + 1 &lt;&lt; ": " &lt;&lt; i.get_weight() &lt;&lt; " docid=" &lt;&lt; *i &lt;&lt; " [" &lt;&lt; i.get_document().get_data() &lt;&lt; "]\n\n"; } } catch (const Xapian::Error &amp;e) { std::cout &lt;&lt; e.get_description() &lt;&lt; std::endl; exit(1); } } int main() { document d1,d2; d1.title = "Xapain is good"; d1.content = "Xapian is an open source search engine library, which allows developers to add advanced indexing and search facilities to their own applications."; d1.url = "http://www.xapian.org"; d2.title = "Xapain is awesome"; d2.content = "good Xapian is an open source search engine library, which allows developers to add advanced indexing and search facilities to their own applications."; d2.url = "http://www.xapian.org/test"; indexData(d1); indexData(d2); searchData("xapian title:good"); searchData("xapian title:Xapian is good"); return 0; } </code></pre> <p>First query "xapian title:good" works well.</p> <p>But "xapian title:Xapian is good" fails.</p> <p>Can any one please explain what is the issue</p>
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