Adapted from ezcSearchQueryBuilder and ezcSearchQueryToken http://svn.ezcomponents.org/viewvc.cgi/trunk/Search/src License: New BSD License http://ez.no/licenses/new_bsd The main difference is that this set of classes * only addresses parsing and query generation, it does not handle communication with a Solr server like ezcSearch does * makes it possible to hook in totally different serialization formats for the generated queries. * the parser has been expanded to also support * backslash escape chars * makes brace support optional * properly implements fielded terms * make the parser itself is extensible. This all might be merged back into ezcSearch eventually and needs unit testing etc. I developed this to parse solr queries for resolutionfinder.org and construct queries against apache solr