46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
/**
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* Copyright 2013 (c) Anna Schumaker.
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*/
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#ifndef OCARINA_CORE_FILTER_H
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#define OCARINA_CORE_FILTER_H
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extern "C" {
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#include <core/set.h>
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}
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#include <string>
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/**
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* The filter layer is used to find a subset of songs based on an input
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* string. Since this layer does text processing, it also provides a
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* functions for converting strings to lowercase.
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*
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* The text processing is mostly interested in alphanumeric characters, so
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* any special characters included in the input text will be stripped out.
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* Tabs, spaces and the following characters are used to delimit words:
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*
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* \/,;()_-~+"
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*/
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namespace filter {
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/**
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* Converts the input text to lowercase and returns the result.
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*
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* @param text The text to be converted.
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* @return The lowercase form of the input text.
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*/
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std::string lowercase(const std::string &);
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};
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void filter_init();
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void filter_deinit();
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/* Add the input string to the index. */
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void filter_add(const gchar *, unsigned int);
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/* Search for the input string in the index. */
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void filter_search(const gchar *, struct set *);
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#endif /* OCARINA_CORE_FILTER_H */
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