File indexing completed on 2024-12-29 04:50:10

 /*
     SPDX-FileCopyrightText: 2019 Volker Krause <vkrause@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "alphaid.h"
 
 using namespace KItinerary;
 
 uint32_t KnowledgeDb::Internal::alphaIdFromString(QStringView s, int size)
 {
     uint32_t res = {};
     if (size != s.size()) {
         return res;
     }
 
     for (int i = 0; i < size; ++i) {
         const auto c = s[i];
         if (c.row() != 0 || (c.cell() < 'A' || c.cell() > 'Z')) {
             return {};
         }
         res |= (c.cell() - '@') << (5 * (size - i - 1));
     }
 
     return res;
 }
 
 QString KnowledgeDb::Internal::alphaIdToString(uint32_t id, int size)
 {
     if (id == 0) {
         return {};
     }
 
     QString s;
     s.reserve(size);
     for (int i = 0; i < size; ++i) {
         const auto shift = 5 * (size - i - 1);
         const auto mask = 31;
         const auto c = (id & (mask << shift)) >> shift;
         s.push_back(QLatin1Char(c + '@'));
     }
 
     return s;
 }