remwharead::Search Class Reference

Search in database entries. More...

#include <remwharead/search.hpp>

Public Member Functions
	Search (const list< Database::entry > &entries)
	Defines the entries to search. More...
const list< Database::entry >	search_tags (string expression, const bool is_re) const
	Search in tags of database entries. More...
const list< Database::entry >	search_all (string expression, const bool is_re) const
	Search in full text of database entries. More...

Detailed Description

Search in database entries.

Since

0.7.0

Constructor & Destructor Documentation

Search()

remwharead::Search::Search ( const list< Database::entry > &  entries )

explicit

Defines the entries to search.

Since

0.7.0

        :_entries(entries)
    {}

Member Function Documentation

search_all()

const list< DB::entry > remwharead::Search::search_all	(	string	expression,
		const bool	is_re
	)		const

Search in full text of database entries.

Searches in tags, title, description and full text.

Parameters

entries	Vector of Database::entry to search.
expression	Search expression.
is_re	Is it a regular expression?

Returns

Vector of matching Database::entry.

Since

0.7.0

    {
        vector<vector<string>> searchlist = parse_expression(expression);
        list<DB::entry> result = search_tags(expression, is_re);

        for (const vector<string> &terms_or : searchlist)
        {
            for (const DB::entry &entry : _entries)
            {
                // Add entry to result if all terms in an OR-slice match title,
                // description or full text.
                bool matched_title = true;
                bool matched_description = true;
                bool matched_fulltext = true;

                const auto it = find(result.begin(), result.end(), entry);
                if (it != result.end())
                {                   // Skip if already in result list.
                    continue;
                }

                for (const string &term : terms_or)
                {
                    const string title = to_lowercase(entry.title);
                    const string description = to_lowercase(entry.description);
                    const string fulltext = to_lowercase(entry.fulltext);

                    // Set matched_* to false if term is not found.
                    if (is_re)
                    {
                        const regex re(term);

                        if(!regex_search(title, re))
                        {
                            matched_title = false;
                        }

                        if(!regex_search(description, re))
                        {
                            matched_description = false;
                        }

                        if(!regex_search(fulltext, re))
                        {
                            matched_fulltext = false;
                        }
                    }
                    else
                    {
                        if (title.find(term) == string::npos)
                        {
                            matched_title = false;
                        }

                        if (description.find(term) == string::npos)
                        {
                            matched_description = false;
                        }

                        if (fulltext.find(term) == string::npos)
                        {
                            matched_fulltext = false;
                        }
                    }
                }
                if (matched_title == true
                    || matched_description == true
                    || matched_fulltext == true)
                {
                    result.push_back(entry);
                }
            }
        }

        return result;
    }

search_tags()

const list< DB::entry > remwharead::Search::search_tags	(	string	expression,
		const bool	is_re
	)		const

Search in tags of database entries.

Only matches whole tags, Pill does not match Pillow.

Parameters

expression	Search expression.
is_re	Is it a regular expression?

Returns

Vector of matching Database::entry.

Since

0.7.0

    {
        vector<vector<string>> searchlist = parse_expression(expression);
        list<DB::entry> result;

        for (const vector<string> &tags_or : searchlist)
        {
            for (const DB::entry &entry : _entries)
            {           // Add entry to result if all tags in an OR-slice match.
                bool matched = true;

                for (const string &tag : tags_or)
                {
                    const auto it = find_if(
                        entry.tags.begin(), entry.tags.end(),
                        [&, is_re](string s)
                        {
                            s = to_lowercase(s);
                            if (is_re)
                            {
                                const regex re("^" + tag + "$");
                                return regex_search(s, re);
                            }
                            else
                            {
                                return (s == tag);
                            }
                        });
                    if (it == entry.tags.end())
                    {
                        matched = false;
                    }
                }
                if (matched == true)
                {
                    result.push_back(entry);
                }
            }
        }

        return result;
    }

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The documentation for this class was generated from the following files:

• include/search.hpp
• src/lib/search.cpp