#ifndef _WASASTRINGTOQUERY_H_INCLUDED_
#define _WASASTRINGTOQUERY_H_INCLUDED_
/* @(#$Id: wasastringtoquery.h,v 1.3 2006-12-10 17:03:08 dockes Exp $ (C) 2006 J.F.Dockes */
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <string>
#include <vector>
using std::string;
using std::vector;
/**
* A simple class to represent a parsed wasabiSimple query
* string. Can hold a string value or an array of subqueries.
* The value can hold one or several words. In the latter case, it should
* be interpreted as a phrase (comes from a user-entered "quoted string").
*/
class WasaQuery {
public:
enum Op {OP_NULL, OP_LEAF, OP_EXCL, OP_OR, OP_AND};
typedef vector<WasaQuery*> subqlist_t;
WasaQuery()
: m_op(OP_NULL), m_typeKind(WQTK_NONE)
{}
~WasaQuery();
// Get string describing the query tree from this point
void describe(string &desc) const;
WasaQuery::Op m_op;
string m_fieldspec;
/* Valid for op == OP_LEAF */
string m_value;
/* Valid for conjunctions */
vector<WasaQuery*> m_subs;
/* Restrict results to some file type, defined by either mime, app group,
* or extension */
enum TypeKind {WQTK_NONE, WQTK_MIME, WQTK_GROUP, WQTK_EXT};
TypeKind m_typeKind;
vector<string> m_types;
/* Sort on relevance, date, name or group */
enum SortKind {WQSK_REL, WQSK_DATE, WQSK_ALPHA, WQSK_GROUP};
vector<SortKind> m_sortSpec;
};
/**
* Wasabi query string parser class. Could be a simple function
* really, but there might be some parser initialization work done in
* the constructor.
*/
class StringToWasaQuery {
public:
StringToWasaQuery();
~StringToWasaQuery();
WasaQuery *stringToQuery(const string& str, string& reason);
class Internal;
private:
Internal *internal;
};
#endif /* _WASASTRINGTOQUERY_H_INCLUDED_ */