QCLuceneQuery* QCLuceneMultiFieldQueryParser::parse(const QString &query,
const QStringList &fieldList,
QCLuceneAnalyzer &analyzer)
{
QCLuceneBooleanQuery *retValue = new QCLuceneBooleanQuery();
foreach (const QString &field, fieldList) {
QCLuceneQuery *q = QCLuceneQueryParser::parse(query, field, analyzer);
if (!q) {
delete retValue;
retValue = 0; break;
} else {
retValue->add(q, true, false, false);
}
}
bool QHelpSearchIndexReaderClucene::addWithoutQuery(const QHelpSearchQuery &query,
const QString &fieldName, QCLuceneBooleanQuery &booleanQuery)
{
bool queryIsValid = false;
const QStringList &stopWords = QCLuceneStopAnalyzer().englishStopWords();
foreach (const QString &term, query.wordList) {
if (stopWords.contains(term, Qt::CaseInsensitive))
continue;
QCLuceneQuery *lQuery = new QCLuceneTermQuery(QCLuceneTerm(
fieldName, term.toLower()));
booleanQuery.add(lQuery, true, false, true);
queryIsValid = true;
}
return queryIsValid;
}
bool QHelpSearchIndexReaderClucene::addPhraseQuery(const QHelpSearchQuery &query,
const QString &fieldName, QCLuceneBooleanQuery &booleanQuery)
{
bool queryIsValid = false;
const QString &term = query.wordList.at(0).toLower();
if (term.contains(QLatin1Char(' '))) {
const QStringList termList = term.split(QLatin1String(" "));
QCLucenePhraseQuery *q = new QCLucenePhraseQuery();
const QStringList stopWords = QCLuceneStopAnalyzer().englishStopWords();
foreach (const QString &term, termList) {
if (!stopWords.contains(term, Qt::CaseInsensitive))
q->addTerm(QCLuceneTerm(fieldName, term.toLower()));
}
if (!q->getTerms().isEmpty()) {
booleanQuery.add(q, true, true, false);
queryIsValid = true;
}
} else {
bool QHelpSearchIndexReaderClucene::addFuzzyQuery(const QHelpSearchQuery &query,
const QString &fieldName, QCLuceneBooleanQuery &booleanQuery,
QCLuceneAnalyzer &analyzer)
{
bool queryIsValid = false;
const QLatin1String fuzzy("~");
foreach (const QString &term, query.wordList) {
if (!term.isEmpty()) {
QCLuceneQuery *lQuery =
QCLuceneQueryParser::parse(term + fuzzy, fieldName, analyzer);
if (lQuery != 0) {
booleanQuery.add(lQuery, true, false, false);
queryIsValid = true;
}
}
}
return queryIsValid;
}