79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
/*
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QUERY.hpp - interface for capability queries
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Copyright (C) CinelerraCV
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2007, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef CINELERRA_QUERY_H
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#define CINELERRA_QUERY_H
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#include <string>
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#include <typeinfo>
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#include <boost/format.hpp>
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namespace cinelerra
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{
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using std::string;
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using boost::format;
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/* ==== comon definitions for rule based queries ==== */
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typedef const char * const Symbol;
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/**
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* Generic query interface for retrieving objects matching
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* some capability query
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*/
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template<class OBJ>
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class Query : public std::string
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{
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public:
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explicit Query (const string& predicate="") : string(predicate) {}
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explicit Query (format& pattern) : string(str(pattern)) {}
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const string asKey() const
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{
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return string(typeid(OBJ).name())+": "+*this;
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}
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};
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namespace query
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{
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/** ensure standard format for a given id string.
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* Trim, sanitize and ensure the first letter is lower case.
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* @note modifies the given string ref in place
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*/
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void normalizeID (string& id);
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const string extractID (Symbol, const string& termString);
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} // namespace query
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} // namespace cinelerra
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#endif
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