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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Xapian: API Documentation: Xapian::QueryParser Class Reference</title>
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<div id="projectname">xapian-core
 <span id="projectnumber">1.4.18</span>
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<li class="navelem"><a class="el" href="namespaceXapian.html">Xapian</a></li><li class="navelem"><a class="el" href="classXapian_1_1QueryParser.html">QueryParser</a></li> </ul>
</div>
</div><!-- top -->
<div class="header">
<div class="summary">
<a href="#pub-types">Public Types</a> |
<a href="#pub-methods">Public Member Functions</a> |
<a href="classXapian_1_1QueryParser-members.html">List of all members</a> </div>
<div class="headertitle">
<div class="title">Xapian::QueryParser Class Reference</div> </div>
</div><!--header-->
<div class="contents">
<p>Build a <a class="el" href="classXapian_1_1Query.html" title="Class representing a query.">Xapian::Query</a> object from a user query string.
<a href="classXapian_1_1QueryParser.html#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:ae96a58a8de9d219ca3214a5a66e0407e"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407e">feature_flag</a> { <br />
  <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407eaffc56acef4c5b0da425d4ea74b7affde">FLAG_BOOLEAN</a> = 1
, <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ead7e3ef99f48e26f40836a2e98ac86e6b">FLAG_PHRASE</a> = 2
, <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ea0c7c618a79df1201ef342951450447cd">FLAG_LOVEHATE</a> = 4
, <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ea9046353051e08dd0149b4fced176ed3d">FLAG_BOOLEAN_ANY_CASE</a> = 8
, <br />
  <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ea99e75d48aca2ebbf477572d855c82e36">FLAG_WILDCARD</a> = 16
, <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407eacafc7c8cf7c90adac0fc07d02125aed0">FLAG_PURE_NOT</a> = 32
, <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407eae0b632c2f797fc7ae53c444f104072c7">FLAG_PARTIAL</a> = 64
, <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407eaacef09c368bdafe64debabe112f1024c">FLAG_SPELLING_CORRECTION</a> = 128
, <br />
  <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407eaa139c20751d70cc6d19d7541160d7d3f">FLAG_SYNONYM</a> = 256
, <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ea15716c0dcfe839e7d9a8e8337bbed16b">FLAG_AUTO_SYNONYMS</a> = 512
, <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ea175afae857d6aa6a4aecccfe8793be1b">FLAG_AUTO_MULTIWORD_SYNONYMS</a> = 1024
, <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ea4c83dcc06ba2cd69c81521133dc68ff8">FLAG_CJK_NGRAM</a> = 2048
, <br />
  <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ea3eed74bc16ebada0f503ca05fbdaa670">FLAG_ACCUMULATE</a> = 65536
, <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ea4e4a5c38e629300d01219456add0ea4a">FLAG_DEFAULT</a> = FLAG_PHRASE|FLAG_BOOLEAN|FLAG_LOVEHATE
<br />
}</td></tr>
<tr class="memdesc:ae96a58a8de9d219ca3214a5a66e0407e"><td class="mdescLeft"> </td><td class="mdescRight">Enum of feature flags. <a href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407e">More...</a><br /></td></tr>
<tr class="separator:ae96a58a8de9d219ca3214a5a66e0407e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae2959f7a1c5680f3fd1421d92445e220"><td class="memItemLeft" align="right" valign="top"><a id="ae2959f7a1c5680f3fd1421d92445e220"></a>enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#ae2959f7a1c5680f3fd1421d92445e220">stem_strategy</a> { <br />
  <b>STEM_NONE</b>
, <b>STEM_SOME</b>
, <b>STEM_ALL</b>
, <b>STEM_ALL_Z</b>
, <br />
  <b>STEM_SOME_FULL_POS</b>
<br />
}</td></tr>
<tr class="memdesc:ae2959f7a1c5680f3fd1421d92445e220"><td class="mdescLeft"> </td><td class="mdescRight">Stemming strategies, for use with <a class="el" href="classXapian_1_1QueryParser.html#ac7dc3b55b6083bd3ff98fc8b2726c8fd" title="Set the stemming strategy.">set_stemming_strategy()</a>. <br /></td></tr>
<tr class="separator:ae2959f7a1c5680f3fd1421d92445e220"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a00d9afcf20b20cd9c8b3d22dd1bc82b7"><td class="memItemLeft" align="right" valign="top"><a id="a00d9afcf20b20cd9c8b3d22dd1bc82b7"></a>
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a00d9afcf20b20cd9c8b3d22dd1bc82b7">QueryParser</a> (const <a class="el" href="classXapian_1_1QueryParser.html">QueryParser</a> &o)</td></tr>
<tr class="memdesc:a00d9afcf20b20cd9c8b3d22dd1bc82b7"><td class="mdescLeft"> </td><td class="mdescRight">Copy constructor. <br /></td></tr>
<tr class="separator:a00d9afcf20b20cd9c8b3d22dd1bc82b7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a18adb637032c2149a0457f2f79f332a5"><td class="memItemLeft" align="right" valign="top"><a id="a18adb637032c2149a0457f2f79f332a5"></a>
<a class="el" href="classXapian_1_1QueryParser.html">QueryParser</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a18adb637032c2149a0457f2f79f332a5">operator=</a> (const <a class="el" href="classXapian_1_1QueryParser.html">QueryParser</a> &o)</td></tr>
<tr class="memdesc:a18adb637032c2149a0457f2f79f332a5"><td class="mdescLeft"> </td><td class="mdescRight">Assignment. <br /></td></tr>
<tr class="separator:a18adb637032c2149a0457f2f79f332a5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a724f1e26b785516c4c8cde78455f9cd5"><td class="memItemLeft" align="right" valign="top"><a id="a724f1e26b785516c4c8cde78455f9cd5"></a>
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a724f1e26b785516c4c8cde78455f9cd5">QueryParser</a> ()</td></tr>
<tr class="memdesc:a724f1e26b785516c4c8cde78455f9cd5"><td class="mdescLeft"> </td><td class="mdescRight">Default constructor. <br /></td></tr>
<tr class="separator:a724f1e26b785516c4c8cde78455f9cd5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a69d48b819b0c6d6a29f86a756f91d047"><td class="memItemLeft" align="right" valign="top"><a id="a69d48b819b0c6d6a29f86a756f91d047"></a>
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a69d48b819b0c6d6a29f86a756f91d047">~QueryParser</a> ()</td></tr>
<tr class="memdesc:a69d48b819b0c6d6a29f86a756f91d047"><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <br /></td></tr>
<tr class="separator:a69d48b819b0c6d6a29f86a756f91d047"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2312c9865a58cc1149fe7cda9f0c2585"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a2312c9865a58cc1149fe7cda9f0c2585">set_stemmer</a> (const <a class="el" href="classXapian_1_1Stem.html">Xapian::Stem</a> &stemmer)</td></tr>
<tr class="memdesc:a2312c9865a58cc1149fe7cda9f0c2585"><td class="mdescLeft"> </td><td class="mdescRight">Set the stemmer. <a href="classXapian_1_1QueryParser.html#a2312c9865a58cc1149fe7cda9f0c2585">More...</a><br /></td></tr>
<tr class="separator:a2312c9865a58cc1149fe7cda9f0c2585"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac7dc3b55b6083bd3ff98fc8b2726c8fd"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#ac7dc3b55b6083bd3ff98fc8b2726c8fd">set_stemming_strategy</a> (<a class="el" href="classXapian_1_1QueryParser.html#ae2959f7a1c5680f3fd1421d92445e220">stem_strategy</a> strategy)</td></tr>
<tr class="memdesc:ac7dc3b55b6083bd3ff98fc8b2726c8fd"><td class="mdescLeft"> </td><td class="mdescRight">Set the stemming strategy. <a href="classXapian_1_1QueryParser.html#ac7dc3b55b6083bd3ff98fc8b2726c8fd">More...</a><br /></td></tr>
<tr class="separator:ac7dc3b55b6083bd3ff98fc8b2726c8fd"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab1046610676f72ba564108f0df5d77ab"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#ab1046610676f72ba564108f0df5d77ab">set_stopper</a> (const <a class="el" href="classXapian_1_1Stopper.html">Stopper</a> *stop=NULL)</td></tr>
<tr class="memdesc:ab1046610676f72ba564108f0df5d77ab"><td class="mdescLeft"> </td><td class="mdescRight">Set the stopper. <a href="classXapian_1_1QueryParser.html#ab1046610676f72ba564108f0df5d77ab">More...</a><br /></td></tr>
<tr class="separator:ab1046610676f72ba564108f0df5d77ab"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2efe48be88c4872afec4bc963f417ea5"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a2efe48be88c4872afec4bc963f417ea5">set_default_op</a> (<a class="el" href="classXapian_1_1Query.html#a7e7b6b8ad0c915c2364578dfaaf6100b">Query::op</a> default_op)</td></tr>
<tr class="memdesc:a2efe48be88c4872afec4bc963f417ea5"><td class="mdescLeft"> </td><td class="mdescRight">Set the default operator. <a href="classXapian_1_1QueryParser.html#a2efe48be88c4872afec4bc963f417ea5">More...</a><br /></td></tr>
<tr class="separator:a2efe48be88c4872afec4bc963f417ea5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac21692986aad0dfae791459cbbf36175"><td class="memItemLeft" align="right" valign="top"><a id="ac21692986aad0dfae791459cbbf36175"></a>
<a class="el" href="classXapian_1_1Query.html#a7e7b6b8ad0c915c2364578dfaaf6100b">Query::op</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#ac21692986aad0dfae791459cbbf36175">get_default_op</a> () const</td></tr>
<tr class="memdesc:ac21692986aad0dfae791459cbbf36175"><td class="mdescLeft"> </td><td class="mdescRight">Get the current default operator. <br /></td></tr>
<tr class="separator:ac21692986aad0dfae791459cbbf36175"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a576d221ba746506e51d9ea596ecb2cf6"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a576d221ba746506e51d9ea596ecb2cf6">set_database</a> (const <a class="el" href="classXapian_1_1Database.html">Database</a> &db)</td></tr>
<tr class="memdesc:a576d221ba746506e51d9ea596ecb2cf6"><td class="mdescLeft"> </td><td class="mdescRight">Specify the database being searched. <a href="classXapian_1_1QueryParser.html#a576d221ba746506e51d9ea596ecb2cf6">More...</a><br /></td></tr>
<tr class="separator:a576d221ba746506e51d9ea596ecb2cf6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:afabe68a4eb93a05150ae7cf070d33752"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#afabe68a4eb93a05150ae7cf070d33752">set_max_expansion</a> (<a class="el" href="namespaceXapian.html#a4464380f6fa0055b5f26b8d03ae170e2">Xapian::termcount</a> max_expansion, int max_type=<a class="el" href="classXapian_1_1Query.html#a7d8b24e46a691bea139d347bc6102a9aa4e374000be4ce7c0f319e335b008c19a">Xapian::Query::WILDCARD_LIMIT_ERROR</a>, unsigned flags=<a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ea99e75d48aca2ebbf477572d855c82e36">FLAG_WILDCARD</a>|<a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407eae0b632c2f797fc7ae53c444f104072c7">FLAG_PARTIAL</a>)</td></tr>
<tr class="memdesc:afabe68a4eb93a05150ae7cf070d33752"><td class="mdescLeft"> </td><td class="mdescRight">Specify the maximum expansion of a wildcard and/or partial term. <a href="classXapian_1_1QueryParser.html#afabe68a4eb93a05150ae7cf070d33752">More...</a><br /></td></tr>
<tr class="separator:afabe68a4eb93a05150ae7cf070d33752"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0a2651e3363f82933b5c6e350bab6d8b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a0a2651e3363f82933b5c6e350bab6d8b">set_max_wildcard_expansion</a> (<a class="el" href="namespaceXapian.html#a4464380f6fa0055b5f26b8d03ae170e2">Xapian::termcount</a>)</td></tr>
<tr class="memdesc:a0a2651e3363f82933b5c6e350bab6d8b"><td class="mdescLeft"> </td><td class="mdescRight">Specify the maximum expansion of a wildcard. <a href="classXapian_1_1QueryParser.html#a0a2651e3363f82933b5c6e350bab6d8b">More...</a><br /></td></tr>
<tr class="separator:a0a2651e3363f82933b5c6e350bab6d8b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a73d32cc7f862ab2e3fdd7da61f352fb2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classXapian_1_1Query.html">Query</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a73d32cc7f862ab2e3fdd7da61f352fb2">parse_query</a> (const std::string &query_string, unsigned flags=<a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ea4e4a5c38e629300d01219456add0ea4a">FLAG_DEFAULT</a>, const std::string &default_prefix=std::string())</td></tr>
<tr class="memdesc:a73d32cc7f862ab2e3fdd7da61f352fb2"><td class="mdescLeft"> </td><td class="mdescRight">Parse a query. <a href="classXapian_1_1QueryParser.html#a73d32cc7f862ab2e3fdd7da61f352fb2">More...</a><br /></td></tr>
<tr class="separator:a73d32cc7f862ab2e3fdd7da61f352fb2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad4829ddcaa0582ff94d1066870a18c97"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#ad4829ddcaa0582ff94d1066870a18c97">add_prefix</a> (const std::string &field, const std::string &prefix)</td></tr>
<tr class="memdesc:ad4829ddcaa0582ff94d1066870a18c97"><td class="mdescLeft"> </td><td class="mdescRight">Add a free-text field term prefix. <a href="classXapian_1_1QueryParser.html#ad4829ddcaa0582ff94d1066870a18c97">More...</a><br /></td></tr>
<tr class="separator:ad4829ddcaa0582ff94d1066870a18c97"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3c6b58293a8e0e0d1db354362c5b7e19"><td class="memItemLeft" align="right" valign="top"><a id="a3c6b58293a8e0e0d1db354362c5b7e19"></a>
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a3c6b58293a8e0e0d1db354362c5b7e19">add_prefix</a> (const std::string &field, <a class="el" href="classXapian_1_1FieldProcessor.html">Xapian::FieldProcessor</a> *proc)</td></tr>
<tr class="memdesc:a3c6b58293a8e0e0d1db354362c5b7e19"><td class="mdescLeft"> </td><td class="mdescRight">Register a <a class="el" href="classXapian_1_1FieldProcessor.html" title="Base class for field processors.">FieldProcessor</a>. <br /></td></tr>
<tr class="separator:a3c6b58293a8e0e0d1db354362c5b7e19"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8590431c481fe0eea43cd4ce619a0816"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a8590431c481fe0eea43cd4ce619a0816">add_boolean_prefix</a> (const std::string &field, const std::string &prefix, const std::string *grouping=NULL)</td></tr>
<tr class="memdesc:a8590431c481fe0eea43cd4ce619a0816"><td class="mdescLeft"> </td><td class="mdescRight">Add a boolean term prefix allowing the user to restrict a search with a boolean filter specified in the free text query. <a href="classXapian_1_1QueryParser.html#a8590431c481fe0eea43cd4ce619a0816">More...</a><br /></td></tr>
<tr class="separator:a8590431c481fe0eea43cd4ce619a0816"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a67d25f9297bb98c2101a03ff3d60cf30"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a67d25f9297bb98c2101a03ff3d60cf30">add_boolean_prefix</a> (const std::string &field, const std::string &prefix, bool exclusive)</td></tr>
<tr class="memdesc:a67d25f9297bb98c2101a03ff3d60cf30"><td class="mdescLeft"> </td><td class="mdescRight">Add a boolean term prefix allowing the user to restrict a search with a boolean filter specified in the free text query. <a href="classXapian_1_1QueryParser.html#a67d25f9297bb98c2101a03ff3d60cf30">More...</a><br /></td></tr>
<tr class="separator:a67d25f9297bb98c2101a03ff3d60cf30"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad475afb6389e05cf996a862a9305c666"><td class="memItemLeft" align="right" valign="top"><a id="ad475afb6389e05cf996a862a9305c666"></a>
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#ad475afb6389e05cf996a862a9305c666">add_boolean_prefix</a> (const std::string &field, <a class="el" href="classXapian_1_1FieldProcessor.html">Xapian::FieldProcessor</a> *proc, const std::string *grouping=NULL)</td></tr>
<tr class="memdesc:ad475afb6389e05cf996a862a9305c666"><td class="mdescLeft"> </td><td class="mdescRight">Register a <a class="el" href="classXapian_1_1FieldProcessor.html" title="Base class for field processors.">FieldProcessor</a> for a boolean prefix. <br /></td></tr>
<tr class="separator:ad475afb6389e05cf996a862a9305c666"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aead663f25674137f723c58b1ceaf5071"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#aead663f25674137f723c58b1ceaf5071">add_boolean_prefix</a> (const std::string &field, <a class="el" href="classXapian_1_1FieldProcessor.html">Xapian::FieldProcessor</a> *proc, bool exclusive)</td></tr>
<tr class="memdesc:aead663f25674137f723c58b1ceaf5071"><td class="mdescLeft"> </td><td class="mdescRight">Register a <a class="el" href="classXapian_1_1FieldProcessor.html" title="Base class for field processors.">FieldProcessor</a> for a boolean prefix. <a href="classXapian_1_1QueryParser.html#aead663f25674137f723c58b1ceaf5071">More...</a><br /></td></tr>
<tr class="separator:aead663f25674137f723c58b1ceaf5071"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6c90c2951a57d9c93efe469dfcb1faec"><td class="memItemLeft" align="right" valign="top"><a id="a6c90c2951a57d9c93efe469dfcb1faec"></a>
<a class="el" href="classXapian_1_1TermIterator.html">TermIterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a6c90c2951a57d9c93efe469dfcb1faec">stoplist_begin</a> () const</td></tr>
<tr class="memdesc:a6c90c2951a57d9c93efe469dfcb1faec"><td class="mdescLeft"> </td><td class="mdescRight">Begin iterator over terms omitted from the query as stopwords. <br /></td></tr>
<tr class="separator:a6c90c2951a57d9c93efe469dfcb1faec"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3ff57d1cfce464a83d471acc1044789e"><td class="memItemLeft" align="right" valign="top"><a id="a3ff57d1cfce464a83d471acc1044789e"></a>
<a class="el" href="classXapian_1_1TermIterator.html">TermIterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a3ff57d1cfce464a83d471acc1044789e">stoplist_end</a> () const</td></tr>
<tr class="memdesc:a3ff57d1cfce464a83d471acc1044789e"><td class="mdescLeft"> </td><td class="mdescRight">End iterator over terms omitted from the query as stopwords. <br /></td></tr>
<tr class="separator:a3ff57d1cfce464a83d471acc1044789e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0ff6b1caa3b6fc4e7cc1d2560eef8080"><td class="memItemLeft" align="right" valign="top"><a id="a0ff6b1caa3b6fc4e7cc1d2560eef8080"></a>
<a class="el" href="classXapian_1_1TermIterator.html">TermIterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a0ff6b1caa3b6fc4e7cc1d2560eef8080">unstem_begin</a> (const std::string &term) const</td></tr>
<tr class="memdesc:a0ff6b1caa3b6fc4e7cc1d2560eef8080"><td class="mdescLeft"> </td><td class="mdescRight">Begin iterator over unstemmed forms of the given stemmed query term. <br /></td></tr>
<tr class="separator:a0ff6b1caa3b6fc4e7cc1d2560eef8080"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:afc3326d7535907a73a4ec37f4d39887f"><td class="memItemLeft" align="right" valign="top"><a id="afc3326d7535907a73a4ec37f4d39887f"></a>
<a class="el" href="classXapian_1_1TermIterator.html">TermIterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#afc3326d7535907a73a4ec37f4d39887f">unstem_end</a> (const std::string &) const</td></tr>
<tr class="memdesc:afc3326d7535907a73a4ec37f4d39887f"><td class="mdescLeft"> </td><td class="mdescRight">End iterator over unstemmed forms of the given stemmed query term. <br /></td></tr>
<tr class="separator:afc3326d7535907a73a4ec37f4d39887f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af8e15e0a73460b2134ca202273d513b9"><td class="memItemLeft" align="right" valign="top"><a id="af8e15e0a73460b2134ca202273d513b9"></a>
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#af8e15e0a73460b2134ca202273d513b9">add_rangeprocessor</a> (<a class="el" href="classXapian_1_1RangeProcessor.html">Xapian::RangeProcessor</a> *range_proc, const std::string *grouping=NULL)</td></tr>
<tr class="memdesc:af8e15e0a73460b2134ca202273d513b9"><td class="mdescLeft"> </td><td class="mdescRight">Register a <a class="el" href="classXapian_1_1RangeProcessor.html" title="Base class for range processors.">RangeProcessor</a>. <br /></td></tr>
<tr class="separator:af8e15e0a73460b2134ca202273d513b9"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8f8583a9f044f2eb33859b442a8aea76"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a8f8583a9f044f2eb33859b442a8aea76">add_valuerangeprocessor</a> (<a class="el" href="classXapian_1_1ValueRangeProcessor.html">Xapian::ValueRangeProcessor</a> *vrproc)</td></tr>
<tr class="memdesc:a8f8583a9f044f2eb33859b442a8aea76"><td class="mdescLeft"> </td><td class="mdescRight">Register a <a class="el" href="classXapian_1_1ValueRangeProcessor.html" title="Base class for value range processors.">ValueRangeProcessor</a>. <a href="classXapian_1_1QueryParser.html#a8f8583a9f044f2eb33859b442a8aea76">More...</a><br /></td></tr>
<tr class="separator:a8f8583a9f044f2eb33859b442a8aea76"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a84e3dfc618f2583f3b1458d4c07325c1"><td class="memItemLeft" align="right" valign="top">std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a84e3dfc618f2583f3b1458d4c07325c1">get_corrected_query_string</a> () const</td></tr>
<tr class="memdesc:a84e3dfc618f2583f3b1458d4c07325c1"><td class="mdescLeft"> </td><td class="mdescRight">Get the spelling-corrected query string. <a href="classXapian_1_1QueryParser.html#a84e3dfc618f2583f3b1458d4c07325c1">More...</a><br /></td></tr>
<tr class="separator:a84e3dfc618f2583f3b1458d4c07325c1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a656f72461f74e86bb2ad35b0eebaef1c"><td class="memItemLeft" align="right" valign="top"><a id="a656f72461f74e86bb2ad35b0eebaef1c"></a>
std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1QueryParser.html#a656f72461f74e86bb2ad35b0eebaef1c">get_description</a> () const</td></tr>
<tr class="memdesc:a656f72461f74e86bb2ad35b0eebaef1c"><td class="mdescLeft"> </td><td class="mdescRight">Return a string describing this object. <br /></td></tr>
<tr class="separator:a656f72461f74e86bb2ad35b0eebaef1c"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Build a <a class="el" href="classXapian_1_1Query.html" title="Class representing a query.">Xapian::Query</a> object from a user query string. </p>
</div><h2 class="groupheader">Member Enumeration Documentation</h2>
<a id="ae96a58a8de9d219ca3214a5a66e0407e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae96a58a8de9d219ca3214a5a66e0407e">◆ </a></span>feature_flag</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">enum <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407e">Xapian::QueryParser::feature_flag</a></td>
</tr>
</table>
</div><div class="memdoc">
<p>Enum of feature flags. </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="ae96a58a8de9d219ca3214a5a66e0407eaffc56acef4c5b0da425d4ea74b7affde"></a>FLAG_BOOLEAN </td><td class="fielddoc"><p>Support AND, OR, etc and bracketed subexpressions. </p>
</td></tr>
<tr><td class="fieldname"><a id="ae96a58a8de9d219ca3214a5a66e0407ead7e3ef99f48e26f40836a2e98ac86e6b"></a>FLAG_PHRASE </td><td class="fielddoc"><p>Support quoted phrases. </p>
</td></tr>
<tr><td class="fieldname"><a id="ae96a58a8de9d219ca3214a5a66e0407ea0c7c618a79df1201ef342951450447cd"></a>FLAG_LOVEHATE </td><td class="fielddoc"><p>Support + and -. </p>
</td></tr>
<tr><td class="fieldname"><a id="ae96a58a8de9d219ca3214a5a66e0407ea9046353051e08dd0149b4fced176ed3d"></a>FLAG_BOOLEAN_ANY_CASE </td><td class="fielddoc"><p>Support AND, OR, etc even if they aren't in ALLCAPS. </p>
</td></tr>
<tr><td class="fieldname"><a id="ae96a58a8de9d219ca3214a5a66e0407ea99e75d48aca2ebbf477572d855c82e36"></a>FLAG_WILDCARD </td><td class="fielddoc"><p>Support wildcards. </p>
<pre class="fragment"> At present only right truncation (e.g. Xap*) is supported.
Currently you can't use wildcards with boolean filter prefixes,
or in a phrase (either an explicitly quoted one, or one implicitly
generated by hyphens or other punctuation).
In Xapian 1.2.x, you needed to tell the QueryParser object which
database to expand wildcards from by calling set_database(). In
Xapian 1.3.3, OP_WILDCARD was added and wildcards are now
expanded when Enquire::get_mset() is called, with the expansion
using the database being searched.
</pre> </td></tr>
<tr><td class="fieldname"><a id="ae96a58a8de9d219ca3214a5a66e0407eacafc7c8cf7c90adac0fc07d02125aed0"></a>FLAG_PURE_NOT </td><td class="fielddoc"><p>Allow queries such as 'NOT apples'. </p>
<pre class="fragment"> These require the use of a list of all documents in the database
which is potentially expensive, so this feature isn't enabled by
default.
</pre> </td></tr>
<tr><td class="fieldname"><a id="ae96a58a8de9d219ca3214a5a66e0407eae0b632c2f797fc7ae53c444f104072c7"></a>FLAG_PARTIAL </td><td class="fielddoc"><p>Enable partial matching. </p>
<pre class="fragment"> Partial matching causes the parser to treat the query as a
"partially entered" search. This will automatically treat the
final word as a wildcarded match, unless it is followed by
whitespace, to produce more stable results from interactive
searches.
Currently FLAG_PARTIAL doesn't do anything if the final word
in the query has a boolean filter prefix, or if it is in a phrase
(either an explicitly quoted one, or one implicitly generated by
hyphens or other punctuation). It also doesn't do anything if
if the final word is part of a value range.
In Xapian 1.2.x, you needed to tell the QueryParser object which
database to expand wildcards from by calling set_database(). In
Xapian 1.3.3, OP_WILDCARD was added and wildcards are now
expanded when Enquire::get_mset() is called, with the expansion
using the database being searched.
</pre> </td></tr>
<tr><td class="fieldname"><a id="ae96a58a8de9d219ca3214a5a66e0407eaacef09c368bdafe64debabe112f1024c"></a>FLAG_SPELLING_CORRECTION </td><td class="fielddoc"><p>Enable spelling correction. </p>
<pre class="fragment"> For each word in the query which doesn't exist as a term in the
database, Database::get_spelling_suggestion() will be called and if
a suggestion is returned, a corrected version of the query string
will be built up which can be read using
QueryParser::get_corrected_query_string(). The query returned is
based on the uncorrected query string however - if you want a
parsed query based on the corrected query string, you must call
QueryParser::parse_query() again.
NB: You must also call set_database() for this to work.
</pre> </td></tr>
<tr><td class="fieldname"><a id="ae96a58a8de9d219ca3214a5a66e0407eaa139c20751d70cc6d19d7541160d7d3f"></a>FLAG_SYNONYM </td><td class="fielddoc"><p>Enable synonym operator '~'. </p>
<pre class="fragment"> NB: You must also call set_database() for this to work.
</pre> </td></tr>
<tr><td class="fieldname"><a id="ae96a58a8de9d219ca3214a5a66e0407ea15716c0dcfe839e7d9a8e8337bbed16b"></a>FLAG_AUTO_SYNONYMS </td><td class="fielddoc"><p>Enable automatic use of synonyms for single terms. </p>
<pre class="fragment"> NB: You must also call set_database() for this to work.
</pre> </td></tr>
<tr><td class="fieldname"><a id="ae96a58a8de9d219ca3214a5a66e0407ea175afae857d6aa6a4aecccfe8793be1b"></a>FLAG_AUTO_MULTIWORD_SYNONYMS </td><td class="fielddoc"><p>Enable automatic use of synonyms for single terms and groups of terms. </p>
<p>NB: You must also call <a class="el" href="classXapian_1_1QueryParser.html#a576d221ba746506e51d9ea596ecb2cf6" title="Specify the database being searched.">set_database()</a> for this to work. </p>
</td></tr>
<tr><td class="fieldname"><a id="ae96a58a8de9d219ca3214a5a66e0407ea4c83dcc06ba2cd69c81521133dc68ff8"></a>FLAG_CJK_NGRAM </td><td class="fielddoc"><p>Enable generation of n-grams from CJK text. </p>
<pre class="fragment"> With this enabled, spans of CJK characters are split into unigrams
and bigrams, with the unigrams carrying positional information.
Non-CJK characters are split into words as normal.
The corresponding option needs to have been used at index time.
Flag added in Xapian 1.3.4 and 1.2.22. This mode can be
enabled in 1.2.8 and later by setting environment variable
XAPIAN_CJK_NGRAM to a non-empty value (but doing so was deprecated
in 1.4.11).
</pre> </td></tr>
<tr><td class="fieldname"><a id="ae96a58a8de9d219ca3214a5a66e0407ea3eed74bc16ebada0f503ca05fbdaa670"></a>FLAG_ACCUMULATE </td><td class="fielddoc"><p>Accumulate unstem and stoplist results. </p>
<pre class="fragment"> By default, the unstem and stoplist data is reset by a call to
parse_query(), which makes sense if you use the same QueryParser
object to parse a series of independent queries.
If you're using the same QueryParser object to parse several
fields on the same query form, you may want to have the unstem
and stoplist data combined for all of them, in which case you
can use this flag to prevent this data from being reset.
@since Added in Xapian 1.4.18.
</pre> </td></tr>
<tr><td class="fieldname"><a id="ae96a58a8de9d219ca3214a5a66e0407ea4e4a5c38e629300d01219456add0ea4a"></a>FLAG_DEFAULT </td><td class="fielddoc"><p>The default flags. </p>
<pre class="fragment"> Used if you don't explicitly pass any to @a parse_query().
The default flags are FLAG_PHRASE|FLAG_BOOLEAN|FLAG_LOVEHATE.
Added in Xapian 1.0.11.
</pre> </td></tr>
</table>
</div>
</div>
<h2 class="groupheader">Member Function Documentation</h2>
<a id="a67d25f9297bb98c2101a03ff3d60cf30"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a67d25f9297bb98c2101a03ff3d60cf30">◆ </a></span>add_boolean_prefix() <span class="overload">[1/3]</span></h2>
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<td class="memname">void Xapian::QueryParser::add_boolean_prefix </td>
<td>(</td>
<td class="paramtype">const std::string & </td>
<td class="paramname"><em>field</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const std::string & </td>
<td class="paramname"><em>prefix</em>, </td>
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<td class="paramtype">bool </td>
<td class="paramname"><em>exclusive</em> </td>
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<p>Add a boolean term prefix allowing the user to restrict a search with a boolean filter specified in the free text query. </p>
<p>This is an older version of this method - use the version with the <code>grouping</code> parameter in preference to this one.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">field</td><td>The user visible field name </td></tr>
<tr><td class="paramname">prefix</td><td>The term prefix to map this to </td></tr>
<tr><td class="paramname">exclusive</td><td>Controls how multiple filters are combined. If true then <em>prefix</em> is used as the <code>grouping</code> value, so terms with the same prefix are combined with OP_OR, then the resulting queries are combined with OP_AND. If false, then a unique grouping is created for each filter (this is sometimes useful when each document can have multiple terms with this prefix). </td></tr>
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</dd>
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<td class="memname">void Xapian::QueryParser::add_boolean_prefix </td>
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<td class="paramtype">const std::string & </td>
<td class="paramname"><em>field</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const std::string & </td>
<td class="paramname"><em>prefix</em>, </td>
</tr>
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<td class="paramkey"></td>
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<td class="paramtype">const std::string * </td>
<td class="paramname"><em>grouping</em> = <code>NULL</code> </td>
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<p>Add a boolean term prefix allowing the user to restrict a search with a boolean filter specified in the free text query. </p>
<p>For example:</p>
<div class="fragment"><div class="line">qp.add_boolean_prefix(<span class="stringliteral">"site"</span>, <span class="stringliteral">"H"</span>);</div>
</div><!-- fragment --><p>This allows the user to restrict a search with site:xapian.org which will be converted to Hxapian.org combined with any weighted query with <code><a class="el" href="classXapian_1_1Query.html#a7e7b6b8ad0c915c2364578dfaaf6100bac657f344bf26128ab7bf8fe25410b102" title="Match like OP_AND but only taking weight from the first subquery.">Xapian::Query::OP_FILTER</a></code>.</p>
<p>If multiple boolean filters are specified in a query for the same prefix, they will be combined with the <code><a class="el" href="classXapian_1_1Query.html#a7e7b6b8ad0c915c2364578dfaaf6100bac50e54f3dd9dc59dab7daa2c50cf631b" title="Match documents which at least one subquery matches.">Xapian::Query::OP_OR</a></code> operator. Then, if there are boolean filters for different prefixes, they will be combined with the <code><a class="el" href="classXapian_1_1Query.html#a7e7b6b8ad0c915c2364578dfaaf6100bab99aad2dfc85eccc56163bc65eb0fdda" title="Match only documents which all subqueries match.">Xapian::Query::OP_AND</a></code> operator.</p>
<p>Multiple fields can be mapped to the same prefix (so for example you can make site: and domain: aliases for each other). Instances of fields with different aliases but the same prefix will still be combined with the OR operator.</p>
<p>For example, if "site" and "domain" map to "H", but author maps to "A", a search for "site:foo domain:bar author:Fred" will map to "(Hfoo OR Hbar) AND Afred".</p>
<p>As of 1.0.4, you can call this method multiple times with the same value of field to allow a single field to be mapped to multiple prefixes. Multiple terms being generated for such a field, and combined with <code><a class="el" href="classXapian_1_1Query.html#a7e7b6b8ad0c915c2364578dfaaf6100bac50e54f3dd9dc59dab7daa2c50cf631b" title="Match documents which at least one subquery matches.">Xapian::Query::OP_OR</a></code>.</p>
<p>Calling this method with an empty string for <em>field</em> will cause a <code><a class="el" href="classXapian_1_1InvalidArgumentError.html" title="InvalidArgumentError indicates an invalid parameter value was passed to the API.">Xapian::InvalidArgumentError</a></code>.</p>
<p>If you call <code><a class="el" href="classXapian_1_1QueryParser.html#ad4829ddcaa0582ff94d1066870a18c97" title="Add a free-text field term prefix.">add_prefix()</a></code> and <code><a class="el" href="classXapian_1_1QueryParser.html#a8590431c481fe0eea43cd4ce619a0816" title="Add a boolean term prefix allowing the user to restrict a search with a boolean filter specified in t...">add_boolean_prefix()</a></code> for the same value of <em>field</em>, a <code><a class="el" href="classXapian_1_1InvalidOperationError.html" title="InvalidOperationError indicates the API was used in an invalid way.">Xapian::InvalidOperationError</a></code> exception will be thrown.</p>
<p>In 1.0.3 and earlier, subsequent calls to this method with the same value of <em>field</em> had no effect.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">field</td><td>The user visible field name </td></tr>
<tr><td class="paramname">prefix</td><td>The term prefix to map this to </td></tr>
<tr><td class="paramname">grouping</td><td>Controls how multiple filters are combined - filters with the same grouping value are combined with OP_OR, then the resulting queries are combined with OP_AND. If NULL, then <em>field</em> is used for grouping. If an empty string, then a unique grouping is created for each filter (this is sometimes useful when each document can have multiple terms with this prefix). [default: NULL] </td></tr>
</table>
</dd>
</dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#aead663f25674137f723c58b1ceaf5071">◆ </a></span>add_boolean_prefix() <span class="overload">[3/3]</span></h2>
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<td class="memname">void Xapian::QueryParser::add_boolean_prefix </td>
<td>(</td>
<td class="paramtype">const std::string & </td>
<td class="paramname"><em>field</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classXapian_1_1FieldProcessor.html">Xapian::FieldProcessor</a> * </td>
<td class="paramname"><em>proc</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">bool </td>
<td class="paramname"><em>exclusive</em> </td>
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<p>Register a <a class="el" href="classXapian_1_1FieldProcessor.html" title="Base class for field processors.">FieldProcessor</a> for a boolean prefix. </p>
<p>This is an older version of this method - use the version with the <code>grouping</code> parameter in preference to this one. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ad4829ddcaa0582ff94d1066870a18c97">◆ </a></span>add_prefix()</h2>
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<td class="memname">void Xapian::QueryParser::add_prefix </td>
<td>(</td>
<td class="paramtype">const std::string & </td>
<td class="paramname"><em>field</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const std::string & </td>
<td class="paramname"><em>prefix</em> </td>
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<p>Add a free-text field term prefix. </p>
<p>For example:</p>
<div class="fragment"><div class="line">qp.add_prefix(<span class="stringliteral">"author"</span>, <span class="stringliteral">"A"</span>);</div>
</div><!-- fragment --><p>This allows the user to search for author:Orwell which will be converted to a search for the term "Aorwell".</p>
<p>Multiple fields can be mapped to the same prefix. For example, you can make title: and subject: aliases for each other.</p>
<p>As of 1.0.4, you can call this method multiple times with the same value of field to allow a single field to be mapped to multiple prefixes. Multiple terms being generated for such a field, and combined with <code><a class="el" href="classXapian_1_1Query.html#a7e7b6b8ad0c915c2364578dfaaf6100bac50e54f3dd9dc59dab7daa2c50cf631b" title="Match documents which at least one subquery matches.">Xapian::Query::OP_OR</a></code>.</p>
<p>If any prefixes are specified for the empty field name (i.e. you call this method with an empty string as the first parameter) these prefixes will be used for terms without a field specifier. If you do this and also specify the <code>default_prefix</code> parameter to <code><a class="el" href="classXapian_1_1QueryParser.html#a73d32cc7f862ab2e3fdd7da61f352fb2" title="Parse a query.">parse_query()</a></code>, then the <code>default_prefix</code> parameter will override.</p>
<p>If the prefix parameter is empty, then "field:word" will produce the term "word" (and this can be one of several prefixes for a particular field, or for terms without a field specifier).</p>
<p>If you call <code><a class="el" href="classXapian_1_1QueryParser.html#ad4829ddcaa0582ff94d1066870a18c97" title="Add a free-text field term prefix.">add_prefix()</a></code> and <code><a class="el" href="classXapian_1_1QueryParser.html#a8590431c481fe0eea43cd4ce619a0816" title="Add a boolean term prefix allowing the user to restrict a search with a boolean filter specified in t...">add_boolean_prefix()</a></code> for the same value of <em>field</em>, a <code><a class="el" href="classXapian_1_1InvalidOperationError.html" title="InvalidOperationError indicates the API was used in an invalid way.">Xapian::InvalidOperationError</a></code> exception will be thrown.</p>
<p>In 1.0.3 and earlier, subsequent calls to this method with the same value of <em>field</em> had no effect.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">field</td><td>The user visible field name </td></tr>
<tr><td class="paramname">prefix</td><td>The term prefix to map this to </td></tr>
</table>
</dd>
</dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a8f8583a9f044f2eb33859b442a8aea76">◆ </a></span>add_valuerangeprocessor()</h2>
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<td class="memname">void Xapian::QueryParser::add_valuerangeprocessor </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classXapian_1_1ValueRangeProcessor.html">Xapian::ValueRangeProcessor</a> * </td>
<td class="paramname"><em>vrproc</em></td><td>)</td>
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<p>Register a <a class="el" href="classXapian_1_1ValueRangeProcessor.html" title="Base class for value range processors.">ValueRangeProcessor</a>. </p>
<p>This method is provided for API compatibility with <a class="el" href="namespaceXapian.html" title="The Xapian namespace contains public interfaces for the Xapian library.">Xapian</a> 1.2.x and is deprecated - use <em><a class="el" href="classXapian_1_1QueryParser.html#af8e15e0a73460b2134ca202273d513b9" title="Register a RangeProcessor.">add_rangeprocessor()</a></em> with a <a class="el" href="classXapian_1_1RangeProcessor.html" title="Base class for range processors.">RangeProcessor</a> instead. </p>
<p>Compatibility shim.</p>
<p class="reference">References <a class="el" href="namespaceXapian.html#a0a75ef120e641c77f703e60f595ffda2">Xapian::BAD_VALUENO</a>, <a class="el" href="classXapian_1_1Query.html#a7e7b6b8ad0c915c2364578dfaaf6100baf93bdb686fea46eb2dae4c36a52e0e3c">Xapian::Query::OP_INVALID</a>, and <a class="el" href="classXapian_1_1RangeProcessor.html#a4e84753e4553ae7515edb4ef12da55b0">Xapian::RangeProcessor::operator()()</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a84e3dfc618f2583f3b1458d4c07325c1">◆ </a></span>get_corrected_query_string()</h2>
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<td class="memname">std::string Xapian::QueryParser::get_corrected_query_string </td>
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<p>Get the spelling-corrected query string. </p>
<p>This will only be set if FLAG_SPELLING_CORRECTION is specified when <a class="el" href="classXapian_1_1QueryParser.html#a73d32cc7f862ab2e3fdd7da61f352fb2" title="Parse a query.">QueryParser::parse_query()</a> was last called.</p>
<p>If there were no corrections, an empty string is returned. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a73d32cc7f862ab2e3fdd7da61f352fb2">◆ </a></span>parse_query()</h2>
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<td class="memname"><a class="el" href="classXapian_1_1Query.html">Query</a> Xapian::QueryParser::parse_query </td>
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<td class="paramtype">const std::string & </td>
<td class="paramname"><em>query_string</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned </td>
<td class="paramname"><em>flags</em> = <code><a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ea4e4a5c38e629300d01219456add0ea4a">FLAG_DEFAULT</a></code>, </td>
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<td class="paramname"><em>default_prefix</em> = <code>std::string()</code> </td>
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<p>Parse a query. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">query_string</td><td>A free-text query as entered by a user </td></tr>
<tr><td class="paramname">flags</td><td>Zero or more <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407e" title="Enum of feature flags.">QueryParser::feature_flag</a> specifying what features the <a class="el" href="classXapian_1_1QueryParser.html" title="Build a Xapian::Query object from a user query string.">QueryParser</a> should support. Combine multiple values with bitwise-or (|) (default FLAG_DEFAULT). </td></tr>
<tr><td class="paramname">default_prefix</td><td>The default term prefix to use (default none). For example, you can pass "A" when parsing an "Author" field.</td></tr>
</table>
</dd>
</dl>
<dl class="exception"><dt>Exceptions</dt><dd>
<table class="exception">
<tr><td class="paramname">If</td><td>the query string can't be parsed, then <a class="el" href="classXapian_1_1QueryParserError.html" title="Indicates a query string can't be parsed.">Xapian::QueryParserError</a> is thrown. You can get an English error message to report to the user by catching it and calling get_msg() on the caught exception. The current possible values (in case you want to translate them) are:</td></tr>
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<ul>
<li>Unknown range operation </li>
<li>parse error </li>
<li>Syntax: <expression> AND <expression> </li>
<li>Syntax: <expression> AND NOT <expression> </li>
<li>Syntax: <expression> NOT <expression> </li>
<li>Syntax: <expression> OR <expression> </li>
<li>Syntax: <expression> XOR <expression> </li>
</ul>
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<h2 class="memtitle"><span class="permalink"><a href="#a576d221ba746506e51d9ea596ecb2cf6">◆ </a></span>set_database()</h2>
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<td class="memname">void Xapian::QueryParser::set_database </td>
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<td class="paramtype">const <a class="el" href="classXapian_1_1Database.html">Database</a> & </td>
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<p>Specify the database being searched. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">db</td><td>The database to use for spelling correction (FLAG_SPELLING_CORRECTION), and synonyms (FLAG_SYNONYM, FLAG_AUTO_SYNONYMS, and FLAG_AUTO_MULTIWORD_SYNONYMS). </td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#a2efe48be88c4872afec4bc963f417ea5">◆ </a></span>set_default_op()</h2>
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<td class="memname">void Xapian::QueryParser::set_default_op </td>
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<td class="paramtype"><a class="el" href="classXapian_1_1Query.html#a7e7b6b8ad0c915c2364578dfaaf6100b">Query::op</a> </td>
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<p>Set the default operator. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">default_op</td><td>The operator to use to combine non-filter query items when no explicit operator is used.</td></tr>
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<p>So for example, 'weather forecast' is parsed as if it were 'weather OR forecast' by default.</p>
<p>The most useful values for this are OP_OR (the default) and OP_AND. OP_NEAR, OP_PHRASE, OP_ELITE_SET, OP_SYNONYM and OP_MAX are also permitted. Passing other values will result in <a class="el" href="classXapian_1_1InvalidArgumentError.html" title="InvalidArgumentError indicates an invalid parameter value was passed to the API.">InvalidArgumentError</a> being thrown. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#afabe68a4eb93a05150ae7cf070d33752">◆ </a></span>set_max_expansion()</h2>
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<td class="memname">void Xapian::QueryParser::set_max_expansion </td>
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<td class="paramtype"><a class="el" href="namespaceXapian.html#a4464380f6fa0055b5f26b8d03ae170e2">Xapian::termcount</a> </td>
<td class="paramname"><em>max_expansion</em>, </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>max_type</em> = <code><a class="el" href="classXapian_1_1Query.html#a7d8b24e46a691bea139d347bc6102a9aa4e374000be4ce7c0f319e335b008c19a">Xapian::Query::WILDCARD_LIMIT_ERROR</a></code>, </td>
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<td class="paramtype">unsigned </td>
<td class="paramname"><em>flags</em> = <code><a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ea99e75d48aca2ebbf477572d855c82e36">FLAG_WILDCARD</a>|<a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407eae0b632c2f797fc7ae53c444f104072c7">FLAG_PARTIAL</a></code> </td>
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<p>Specify the maximum expansion of a wildcard and/or partial term. </p>
<p>Note: you must also set FLAG_WILDCARD and/or FLAG_PARTIAL in the flags parameter to <em><a class="el" href="classXapian_1_1QueryParser.html#a73d32cc7f862ab2e3fdd7da61f352fb2" title="Parse a query.">parse_query()</a></em> for this setting to have anything to affect.</p>
<p>If you don't call this method, the default settings are no limit on wildcard expansion, and partial terms expanding to the most frequent 100 terms - i.e. as if you'd called:</p>
<p>set_max_expansion(0); set_max_expansion(100, Xapian::Query::WILDCARD_LIMIT_MOST_FREQUENT, Xapian::QueryParser::FLAG_PARTIAL);</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">max_expansion</td><td>The maximum number of terms each wildcard in the query can expand to, or 0 for no limit (which is the default). </td></tr>
<tr><td class="paramname">max_type</td><td><em><a class="el" href="classXapian_1_1Query.html#a7d8b24e46a691bea139d347bc6102a9aa4e374000be4ce7c0f319e335b008c19a" title="Throw an error if OP_WILDCARD exceeds its expansion limit.">Xapian::Query::WILDCARD_LIMIT_ERROR</a></em>, <em><a class="el" href="classXapian_1_1Query.html#a7d8b24e46a691bea139d347bc6102a9aaa08d373f6c100bdbff9420dc51a621f2" title="Stop expanding when OP_WILDCARD reaches its expansion limit.">Xapian::Query::WILDCARD_LIMIT_FIRST</a></em> or <em><a class="el" href="classXapian_1_1Query.html#a7d8b24e46a691bea139d347bc6102a9aaa1568bc15280d8c8a10128d3b7f1db71" title="Limit OP_WILDCARD expansion to the most frequent terms.">Xapian::Query::WILDCARD_LIMIT_MOST_FREQUENT</a></em> (default: <a class="el" href="classXapian_1_1Query.html#a7d8b24e46a691bea139d347bc6102a9aa4e374000be4ce7c0f319e335b008c19a" title="Throw an error if OP_WILDCARD exceeds its expansion limit.">Xapian::Query::WILDCARD_LIMIT_ERROR</a>). </td></tr>
<tr><td class="paramname">flags</td><td>What to set the limit for (default: FLAG_WILDCARD|FLAG_PARTIAL, setting the limit for both wildcards and partial terms).</td></tr>
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<dl class="section since"><dt>Since</dt><dd>1.3.3 </dd></dl>
<p class="reference">Referenced by <a class="el" href="classXapian_1_1QueryParser.html#a0a2651e3363f82933b5c6e350bab6d8b">set_max_wildcard_expansion()</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a0a2651e3363f82933b5c6e350bab6d8b">◆ </a></span>set_max_wildcard_expansion()</h2>
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<td class="memname">void Xapian::QueryParser::set_max_wildcard_expansion </td>
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<td class="paramtype"><a class="el" href="namespaceXapian.html#a4464380f6fa0055b5f26b8d03ae170e2">Xapian::termcount</a> </td>
<td class="paramname"><em>max_expansion</em></td><td>)</td>
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<p>Specify the maximum expansion of a wildcard. </p>
<p>If any wildcard expands to more than <em>max_expansion</em> terms, an exception will be thrown.</p>
<p>This method is provided for API compatibility with <a class="el" href="namespaceXapian.html" title="The Xapian namespace contains public interfaces for the Xapian library.">Xapian</a> 1.2.x and is deprecated - replace it with:</p>
<p>set_max_wildcard_expansion(max_expansion, <a class="el" href="classXapian_1_1Query.html#a7d8b24e46a691bea139d347bc6102a9aa4e374000be4ce7c0f319e335b008c19a" title="Throw an error if OP_WILDCARD exceeds its expansion limit.">Xapian::Query::WILDCARD_LIMIT_ERROR</a>, <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ea99e75d48aca2ebbf477572d855c82e36" title="Support wildcards.">Xapian::QueryParser::FLAG_WILDCARD</a>); </p>
<p class="reference">References <a class="el" href="classXapian_1_1QueryParser.html#ae96a58a8de9d219ca3214a5a66e0407ea99e75d48aca2ebbf477572d855c82e36">FLAG_WILDCARD</a>, <a class="el" href="classXapian_1_1QueryParser.html#afabe68a4eb93a05150ae7cf070d33752">set_max_expansion()</a>, and <a class="el" href="classXapian_1_1Query.html#a7d8b24e46a691bea139d347bc6102a9aa4e374000be4ce7c0f319e335b008c19a">Xapian::Query::WILDCARD_LIMIT_ERROR</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a2312c9865a58cc1149fe7cda9f0c2585">◆ </a></span>set_stemmer()</h2>
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<td class="memname">void Xapian::QueryParser::set_stemmer </td>
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<p>Set the stemmer. </p>
<p>This sets the stemming algorithm which will be used by the query parser. The stemming algorithm will be used according to the stemming strategy set by <a class="el" href="classXapian_1_1QueryParser.html#ac7dc3b55b6083bd3ff98fc8b2726c8fd" title="Set the stemming strategy.">set_stemming_strategy()</a>. As of 1.3.1, this defaults to STEM_SOME, but in earlier versions the default was STEM_NONE. If you want to work with older versions, you should explicitly set a stemming strategy as well as setting a stemmer, otherwise your stemmer won't actually be used.</p>
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<tr><td class="paramname">stemmer</td><td>The <a class="el" href="classXapian_1_1Stem.html" title="Class representing a stemming algorithm.">Xapian::Stem</a> object to set. </td></tr>
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<h2 class="memtitle"><span class="permalink"><a href="#ac7dc3b55b6083bd3ff98fc8b2726c8fd">◆ </a></span>set_stemming_strategy()</h2>
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<td class="memname">void Xapian::QueryParser::set_stemming_strategy </td>
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<td class="paramtype"><a class="el" href="classXapian_1_1QueryParser.html#ae2959f7a1c5680f3fd1421d92445e220">stem_strategy</a> </td>
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<p>Set the stemming strategy. </p>
<p>This controls how the query parser will apply the stemming algorithm. Note that the stemming algorithm is only applied to words in free-text fields - boolean filter terms are never stemmed.</p>
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<tr><td class="paramname">strategy</td><td>The strategy to use - possible values are:<ul>
<li>STEM_NONE: Don't perform any stemming. (default in <a class="el" href="namespaceXapian.html" title="The Xapian namespace contains public interfaces for the Xapian library.">Xapian</a> <= 1.3.0)</li>
<li>STEM_SOME: <a class="el" href="classXapian_1_1Stem.html" title="Class representing a stemming algorithm.">Stem</a> all terms except for those which start with a capital letter, or are followed by certain characters (currently: <code>(/@<>=*[{"</code> ), or are used with operators which need positional information. Stemmed terms are prefixed with 'Z'. (default in <a class="el" href="namespaceXapian.html" title="The Xapian namespace contains public interfaces for the Xapian library.">Xapian</a> >= 1.3.1)</li>
<li>STEM_SOME_FULL_POS: Like STEM_SOME but also stems terms used with operators which need positional information. Added in <a class="el" href="namespaceXapian.html" title="The Xapian namespace contains public interfaces for the Xapian library.">Xapian</a> 1.4.8.</li>
<li>STEM_ALL: <a class="el" href="classXapian_1_1Stem.html" title="Class representing a stemming algorithm.">Stem</a> all terms (note: no 'Z' prefix is added).</li>
<li>STEM_ALL_Z: <a class="el" href="classXapian_1_1Stem.html" title="Class representing a stemming algorithm.">Stem</a> all terms (note: 'Z' prefix is added). (new in <a class="el" href="namespaceXapian.html" title="The Xapian namespace contains public interfaces for the Xapian library.">Xapian</a> 1.2.11 and 1.3.1) </li>
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<h2 class="memtitle"><span class="permalink"><a href="#ab1046610676f72ba564108f0df5d77ab">◆ </a></span>set_stopper()</h2>
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<td class="memname">void Xapian::QueryParser::set_stopper </td>
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<p>Set the stopper. </p>
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<tr><td class="paramname">stop</td><td>The <a class="el" href="classXapian_1_1Stopper.html" title="Base class for stop-word decision functor.">Stopper</a> object to set (default NULL, which means no stopwords). </td></tr>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>xapian/<a class="el" href="queryparser_8h.html">queryparser.h</a></li>
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