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word_db.hh
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word_db.hh
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#ifndef word_db_hh_INCLUDED
#define word_db_hh_INCLUDED
#include "shared_string.hh"
#include "hash_map.hh"
#include "vector.hh"
#include "ranked_match.hh"
#include "option_manager.hh"
#include "safe_ptr.hh"
namespace Kakoune
{
using RankedMatchList = Vector<RankedMatch>;
class Buffer;
// maintain a database of words available in a buffer
class WordDB : public OptionManagerWatcher
{
public:
static constexpr ByteCount max_word_len = 50;
WordDB(const Buffer& buffer);
~WordDB();
WordDB(const WordDB&) = delete;
WordDB(WordDB&&) noexcept;
RankedMatchList find_matching(StringView str);
int get_word_occurences(StringView word) const;
private:
void update_db();
void add_words(StringView line, ConstArrayView<Codepoint> extra_word_chars);
void remove_words(StringView line, ConstArrayView<Codepoint> extra_word_chars);
void rebuild_db();
void on_option_changed(const Option& option) override;
struct WordInfo
{
StringDataPtr word;
UsedLetters letters;
int refcount;
};
using WordToInfo = HashMap<StringView, WordInfo, MemoryDomain::WordDB>;
using Lines = Vector<StringDataPtr, MemoryDomain::WordDB>;
SafePtr<const Buffer> m_buffer;
size_t m_timestamp;
WordToInfo m_words;
Lines m_lines;
};
WordDB& get_word_db(const Buffer& buffer);
}
#endif // word_db_hh_INCLUDED