162 lines
5.0 KiB
C++
162 lines
5.0 KiB
C++
/*
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Copyright 2015-2016 Amebis
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This file is part of ZRCola.
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ZRCola is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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ZRCola is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with ZRCola. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "common.h"
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#include <zrcola/common.h>
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#include <stdex/idrec.h>
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#include <istream>
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#include <vector>
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#pragma warning(push)
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#pragma warning(disable: 4200)
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#pragma warning(disable: 4251)
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#pragma warning(disable: 4512)
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namespace ZRCola {
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///
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/// Character group database
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///
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class ZRCOLAUI_API chrgrp_db {
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public:
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#pragma pack(push)
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#pragma pack(2)
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///
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/// Character group data
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///
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struct chrgrp {
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unsigned __int16 id; ///< Character group id
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unsigned __int16 rank; ///< Character group rank
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unsigned __int16 name_len; ///< Character group name length in \c data
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unsigned __int16 char_len; ///< Character list length in \c data
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wchar_t data[]; ///< Character group name and character list
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};
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#pragma pack(pop)
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///
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/// Rank index
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///
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class indexRank : public index<unsigned __int16, unsigned __int32, chrgrp>
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{
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public:
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///
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/// Constructs the index
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///
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/// \param[in] h Reference to vector holding the data
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///
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indexRank(_In_ std::vector<unsigned __int16> &h) : index<unsigned __int16, unsigned __int32, chrgrp>(h) {}
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///
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/// Compares two character groups by rank (for searching)
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///
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/// \param[in] a Pointer to character group
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/// \param[in] b Pointer to second character group
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///
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/// \returns
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/// - <0 when a < b
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/// - =0 when a == b
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/// - >0 when a > b
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///
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virtual int compare(_In_ const chrgrp &a, _In_ const chrgrp &b) const
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{
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if (a.rank < b.rank) return -1;
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else if (a.rank > b.rank) return +1;
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return 0;
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}
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///
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/// Compares two character groups by rank (for sorting)
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///
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/// \param[in] a Pointer to character group
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/// \param[in] b Pointer to second character group
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///
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/// \returns
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/// - <0 when a < b
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/// - =0 when a == b
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/// - >0 when a > b
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///
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virtual int compare_sort(_In_ const chrgrp &a, _In_ const chrgrp &b) const
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{
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if (a.rank < b.rank) return -1;
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else if (a.rank > b.rank) return +1;
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int r = _wcsncoll(a.data, b.data, std::min<unsigned __int16>(a.name_len, b.name_len));
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if (r != 0) return r;
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if (a.name_len < b.name_len) return -1;
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else if (a.name_len > b.name_len) return +1;
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return 0;
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}
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} idxRnk; ///< Rank index
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std::vector<unsigned __int16> data; ///< Character groups data
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public:
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///
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/// Constructs the database
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///
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inline chrgrp_db() : idxRnk(data) {}
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};
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typedef ZRCOLAUI_API stdex::idrec::record<chrgrp_db, recordid_t, recordsize_t, ZRCOLA_RECORD_ALIGN> chrgrp_rec;
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};
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const ZRCola::recordid_t stdex::idrec::record<ZRCola::chrgrp_db, ZRCola::recordid_t, ZRCola::recordsize_t, ZRCOLA_RECORD_ALIGN>::id = *(ZRCola::recordid_t*)"CGR";
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///
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/// Reads character group database from a stream
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///
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/// \param[in] stream Input stream
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/// \param[out] db Character group database
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///
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/// \returns The stream \p stream
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///
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inline std::istream& operator >>(_In_ std::istream& stream, _Out_ ZRCola::chrgrp_db &db)
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{
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unsigned __int32 count;
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// Read index count.
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stream.read((char*)&count, sizeof(count));
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if (!stream.good()) return stream;
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// Read rank index.
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db.idxRnk.resize(count);
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stream.read((char*)db.idxRnk.data(), sizeof(unsigned __int32)*count);
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if (!stream.good()) return stream;
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// Read data count.
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stream.read((char*)&count, sizeof(count));
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if (!stream.good()) return stream;
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// Read data.
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db.data.resize(count);
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stream.read((char*)db.data.data(), sizeof(unsigned __int16)*count);
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return stream;
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}
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#pragma warning(pop)
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