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/******************************************************************************
*
* Copyright (C) 1997-2020 by Dimitri van Heesch.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation under the terms of the GNU General Public License is hereby
* granted. No representations are made about the suitability of this software
* for any purpose. It is provided "as is" without express or implied warranty.
* See the GNU General Public License for more details.
*
* Documents produced by Doxygen are derivative works derived from the
* input used in their production; they are not affected by this license.
*
*/
#ifndef SEARCHINDEX_H
#define SEARCHINDEX_H
#include <memory>
#include <vector>
#include <map>
#include <unordered_map>
#include <string>
#include <array>
#include <functional>
#include <qcstring.h>
class Definition;
/*! Initialize the search indexer */
void initSearchIndexer();
/*! Cleanup the search indexer */
void finalizeSearchIndexer();
//------- server side search index ----------------------
struct URL
{
URL(QCString n,QCString u) : name(n), url(u) {}
QCString name;
QCString url;
};
struct URLInfo
{
URLInfo(int idx,int f) : urlIdx(idx), freq(f) {}
int urlIdx;
int freq;
};
class IndexWord
{
public:
using URLInfoMap = std::unordered_map<int,URLInfo>;
IndexWord(QCString word);
void addUrlIndex(int,bool);
URLInfoMap urls() const { return m_urls; }
QCString word() const { return m_word; }
private:
QCString m_word;
URLInfoMap m_urls;
};
class SearchIndexIntf
{
public:
enum Kind { Internal, External };
SearchIndexIntf(Kind k) : m_kind(k) {}
virtual ~SearchIndexIntf() {}
virtual void setCurrentDoc(const Definition *ctx,const char *anchor,bool isSourceFile) = 0;
virtual void addWord(const char *word,bool hiPriority) = 0;
virtual void write(const char *file) = 0;
Kind kind() const { return m_kind; }
private:
Kind m_kind;
};
class SearchIndex : public SearchIndexIntf
{
public:
SearchIndex();
void setCurrentDoc(const Definition *ctx,const char *anchor,bool isSourceFile) override;
void addWord(const char *word,bool hiPriority) override;
void write(const char *file) override;
private:
void addWord(const char *word,bool hiPrio,bool recurse);
std::unordered_map<std::string,int> m_words;
std::vector< std::vector< IndexWord> > m_index;
std::unordered_map<std::string,int> m_url2IdMap;
std::map<int,URL> m_urls;
int m_urlIndex = -1;
};
class SearchIndexExternal : public SearchIndexIntf
{
struct Private;
public:
SearchIndexExternal();
void setCurrentDoc(const Definition *ctx,const char *anchor,bool isSourceFile);
void addWord(const char *word,bool hiPriority);
void write(const char *file);
private:
std::unique_ptr<Private> p;
};
//------- client side search index ----------------------
#define NUM_SEARCH_INDICES 20
QCString searchId(const Definition *d);
QCString searchName(const Definition *d);
using SearchIndexList = std::vector<const Definition *>;
using SearchIndexMap = std::map<std::string,SearchIndexList>;
struct SearchIndexInfo
{
void add(const std::string &letter,const Definition *def);
QCString name;
std::function<QCString()> getText;
SearchIndexMap symbolMap;
};
void createJavaScriptSearchIndex();
void writeJavaScriptSearchIndex();
const std::array<SearchIndexInfo,NUM_SEARCH_INDICES> &getSearchIndices();
#endif
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