58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
#ifndef ranked_match_hh_INCLUDED
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#define ranked_match_hh_INCLUDED
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#include "string.hh"
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#include "meta.hh"
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namespace Kakoune
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{
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using UsedLetters = uint64_t;
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UsedLetters used_letters(StringView str);
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constexpr UsedLetters upper_mask = 0xFFFFFFC000000;
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inline UsedLetters to_lower(UsedLetters letters)
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{
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return ((letters & upper_mask) >> 26) | (letters & (~upper_mask));
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}
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struct RankedMatch
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{
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RankedMatch(StringView candidate, StringView query);
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RankedMatch(StringView candidate, UsedLetters candidate_letters,
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StringView query, UsedLetters query_letters);
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const StringView& candidate() const { return m_candidate; }
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bool operator<(const RankedMatch& other) const;
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bool operator==(const RankedMatch& other) const { return m_candidate == other.m_candidate; }
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explicit operator bool() const { return not m_candidate.empty(); }
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private:
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template<typename TestFunc>
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RankedMatch(StringView candidate, StringView query, TestFunc test);
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enum class Flags : int
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{
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None = 0,
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// Order is important, the highest bit has precedence for comparison
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FirstCharMatch = 1 << 0,
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SingleWord = 1 << 1,
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Contiguous = 1 << 2,
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OnlyWordBoundary = 1 << 3,
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Prefix = 1 << 4,
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FullMatch = 1 << 5,
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};
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friend constexpr bool with_bit_ops(Meta::Type<Flags>) { return true; }
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StringView m_candidate{};
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Flags m_flags = Flags::None;
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int m_word_boundary_match_count = 0;
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int m_max_index = 0;
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};
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}
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#endif // ranked_match_hh_INCLUDED
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