1 files changed, 52 insertions, 0 deletions
diff --git a/debian/htdig/htdig-3.2.0b6/htsearch/SimpleQueryParser.h b/debian/htdig/htdig-3.2.0b6/htsearch/SimpleQueryParser.h
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+#ifndef _SimpleQueryParser_h_
+#define _SimpleQueryParser_h_
+
+//
+// SimpleQueryParser.h
+//
+// SimpleQueryParser: (abstract) a family of parsers that generate queries
+//                    for strings with the syntax (word|phrase){(word|phrase)}
+//                    combining them in a single operator.
+//                    The operator to apply is tbd by concrete classes.
+//
+// Part of the ht://Dig package   <http://www.htdig.org/>
+// Copyright (c) 1995-2004 The ht://Dig Group
+// For copyright details, see the file COPYING in your distribution
+// or the GNU Library General Public License (LGPL) version 2 or later
+// <http://www.gnu.org/copyleft/lgpl.html>
+//
+// $Id: SimpleQueryParser.h,v 1.4 2004/05/28 13:15:24 lha Exp $
+//
+
+#include "QueryParser.h"
+#include "SimpleLexer.h"
+
+// abstract
+class OperatorQuery;
+
+class SimpleQueryParser : public QueryParser
+{
+public:
+	virtual ~SimpleQueryParser() {}
+
+protected:
+	SimpleQueryParser() {}
+
+	// get a combination query
+	virtual OperatorQuery *MakeQuery() = 0;
+
+private:
+	// apply expr == term { term }
+	Query *ParseExpression();
+
+	// apply term == word | phrase
+	Query *ParseTerm();
+
+	// let the parent access the lexer
+	QueryLexer &Token() { return token; }
+
+	// the used lexer
+	SimpleLexer token;
+};
+
+#endif