File indexing completed on 2024-04-21 14:52:26

 /*
     SPDX-FileCopyrightText: 2015 Vishesh Handa <vhanda@kde.org>
 
     SPDX-License-Identifier: LGPL-2.1-or-later
 */
 
 #include "doctermscodec.h"
 
 using namespace Baloo;
 
 QByteArray DocTermsCodec::encode(const QVector<QByteArray>& terms)
 {
     Q_ASSERT(!terms.isEmpty());
 
     QByteArray full;
     full.append(terms.first());
     full.append('\0');
 
     for (int i = 1; i < terms.size(); i++) {
         const QByteArray term = terms[i];
         const QByteArray prevTerm = terms[i-1];
 
         if (term.startsWith(prevTerm)) {
             full.append(term.mid(prevTerm.size()));
             full.append(static_cast<char>(1));
         } else {
             full.append(term);
             full.append('\0');
         }
     }
 
     return full;
 }
 
 QVector<QByteArray> DocTermsCodec::decode(const QByteArray& full)
 {
     Q_ASSERT(full.size());
 
     QVector<QByteArray> list;
 
     int prevWordBoundary = 0;
     for (int i = 0; i < full.size(); i++) {
         if (full[i] == 1) {
             if (list.isEmpty()) {
                 // corrupted entry - no way to recover
                 return list;
             }
 
             QByteArray arr(full.constData() + prevWordBoundary, i - prevWordBoundary);
 
             list << list.last() + arr;
             prevWordBoundary = i + 1;
             continue;
         }
 
         if (full[i] == '\0') {
             QByteArray arr(full.constData() + prevWordBoundary, i - prevWordBoundary);
 
             list << arr;
             prevWordBoundary = i + 1;
             continue;
         }
     }
 
     return list;
 }