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xapiandocument.cpp
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xapiandocument.cpp
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/*
* <one line to give the library's name and an idea of what it does.>
* Copyright (C) 2014 Vishesh Handa <me@vhanda.in>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include "xapiandocument.h"
using namespace Baloo;
XapianDocument::XapianDocument()
: m_termGen(&m_doc)
{
}
XapianDocument::XapianDocument(const Xapian::Document& doc)
: m_doc(doc)
, m_termGen(&m_doc)
{
}
void XapianDocument::addTerm(const QString& term, const QString& prefix)
{
QByteArray arr = prefix.toUtf8();
arr += term.toUtf8();
m_doc.add_term(arr.constData());
}
void XapianDocument::addBoolTerm(int term, const QString& prefix)
{
addBoolTerm(QString::number(term), prefix);
}
void XapianDocument::addBoolTerm(const QString& term, const QString& prefix)
{
QByteArray arr = prefix.toUtf8();
arr += term.toUtf8();
m_doc.add_boolean_term(arr.constData());
}
void XapianDocument::indexText(const QString& text, const QString& prefix, int wdfInc)
{
m_termGen.indexText(text, prefix, wdfInc);
}
void XapianDocument::indexText(const QString& text, int wdfInc)
{
indexText(text, QString(), wdfInc);
}
Xapian::Document XapianDocument::doc() const
{
return m_doc;
}
void XapianDocument::addValue(int pos, const QString& value)
{
m_doc.add_value(pos, value.toUtf8().constData());
}
QString XapianDocument::fetchTermStartsWith(const QByteArray& term)
{
try {
Xapian::TermIterator it = m_doc.termlist_begin();
it.skip_to(term.constData());
if (it == m_doc.termlist_end()) {
return QString();
}
std::string str = *it;
return QString::fromUtf8(str.c_str(), str.length());
}
catch (const Xapian::Error&) {
return QString();
}
}
bool XapianDocument::removeTermStartsWith(const QByteArray& prefix)
{
bool modified = false;
Xapian::TermIterator it = m_doc.termlist_begin();
it.skip_to(prefix.constData());
while (it != m_doc.termlist_end()){
const std::string t = *it;
const QByteArray term = QByteArray::fromRawData(t.c_str(), t.size());
if (!term.startsWith(prefix)) {
break;
}
// The term should not just be the prefix
if (term.size() <= prefix.size()) {
break;
}
// The term should not contain any more upper case letters
if (isupper(term.at(prefix.size()))) {
++it;
continue;
}
++it;
m_doc.remove_term(t);
modified = true;
}
return modified;
}

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