kakoune/src/word_db.hh
2014-10-28 19:23:02 +00:00

47 lines
989 B
C++

#ifndef word_db_hh_INCLUDED
#define word_db_hh_INCLUDED
#include "buffer.hh"
#include "interned_string.hh"
#include <map>
#include <bitset>
namespace Kakoune
{
// maintain a database of words available in a buffer
class WordDB
{
public:
WordDB(const Buffer& buffer);
WordDB(const WordDB&) { kak_assert(false); }
WordDB(WordDB&&) = default;
std::vector<InternedString> find_prefix(StringView prefix);
std::vector<InternedString> find_subsequence(StringView subsequence);
int get_word_occurences(StringView word) const;
using UsedChars = std::bitset<64>;
struct WordInfo
{
UsedChars letters;
int refcount;
};
using WordList = std::unordered_map<InternedString, WordInfo>;
private:
using LineToWords = std::vector<std::vector<InternedString>>;
void update_db();
safe_ptr<const Buffer> m_buffer;
size_t m_timestamp;
WordList m_words;
LineToWords m_line_to_words;
};
}
#endif // word_db_hh_INCLUDED