/usr/include/zim/search.h is in libzim-dev 1.2-9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (C) 2007 Tommi Maekitalo
*
* 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
* is provided AS IS, WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, and
* NON-INFRINGEMENT. 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef ZIM_SEARCH_H
#define ZIM_SEARCH_H
#include <zim/article.h>
#include <vector>
#include <map>
namespace zim
{
class SearchResult
{
Article article;
mutable double priority;
struct WordAttr
{
unsigned count;
unsigned addweight;
WordAttr() : count(0), addweight(1) { }
};
typedef std::map<std::string, WordAttr> WordListType; // map word => count and addweight
typedef std::map<size_type, std::string> PosListType; // map position => word
WordListType wordList;
PosListType posList;
public:
SearchResult() : priority(0) { }
explicit SearchResult(const Article& article_, unsigned priority_ = 0)
: article(article_),
priority(priority_)
{ }
const Article& getArticle() const { return article; }
double getPriority() const;
void foundWord(const std::string& word, size_type pos, unsigned addweight);
unsigned getCountWords() const { return wordList.size(); }
unsigned getCountPositions() const { return posList.size(); }
};
class Search
{
public:
class Results : public std::vector<SearchResult>
{
std::string expr;
public:
void setExpression(const std::string& e)
{ expr = e; }
const std::string& getExpression() const
{ return expr; }
};
private:
static double weightOcc;
static double weightOccOff;
static double weightPlus;
static double weightDist;
static double weightPos;
static double weightPosRel;
static double weightDistinctWords;
static unsigned searchLimit;
File indexfile;
File articlefile;
public:
Search()
{ }
explicit Search(const File& zimfile)
: indexfile(zimfile),
articlefile(zimfile)
{ }
Search(const File& articlefile_, const File& indexfile_)
: indexfile(indexfile_),
articlefile(articlefile_)
{ }
void search(Results& results, const std::string& expr);
void find(Results& results, char ns, const std::string& praefix, unsigned limit = searchLimit);
void find(Results& results, char ns, const std::string& begin, const std::string& end, unsigned limit = searchLimit);
static double getWeightOcc() { return weightOcc; }
static double getWeightOccOff() { return weightOccOff; }
static double getWeightPlus() { return weightPlus; }
static double getWeightDist() { return weightDist; }
static double getWeightPos() { return weightPos; }
static double getWeightPosRel() { return weightPosRel; }
static double getWeightDistinctWords() { return weightDistinctWords; }
static unsigned getSearchLimit() { return searchLimit; }
static void setWeightOcc(double v) { weightOcc = v; }
static void setWeightOccOff(double v) { weightOccOff = v; }
static void setWeightPlus(double v) { weightPlus = v; }
static void setWeightDist(double v) { weightDist = v; }
static void setWeightPos(double v) { weightPos = v; }
static void setWeightPosRel(double v) { weightPosRel = v; }
static void setWeightDistinctWords(double v) { weightDistinctWords = v; }
static void setSearchLimit(unsigned v) { searchLimit = v; }
};
}
#endif // ZIM_SEARCH_H
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