qstringlist.cpp

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#include <qstringlist.h>
#include <qset.h>

QT_BEGIN_NAMESPACE

void QtPrivate::QStringList_sort(QStringList *that)
{
    qSort(*that);
}


#ifdef QT3_SUPPORT

#ifndef QT_NO_REGEXP

#endif
#endif // QT3_SUPPORT

QStringList QtPrivate::QStringList_filter(const QStringList *that, const QString &str,
                                          Qt::CaseSensitivity cs)
{
    QStringMatcher matcher(str, cs);
    QStringList res;
    for (int i = 0; i < that->size(); ++i)
        if (matcher.indexIn(that->at(i)) != -1)
            res << that->at(i);
    return res;
}


QBool QtPrivate::QStringList_contains(const QStringList *that, const QString &str,
                                      Qt::CaseSensitivity cs)
{
    for (int i = 0; i < that->size(); ++i) {
        const QString & string = that->at(i);
        if (string.length() == str.length() && str.compare(string, cs) == 0)
            return QBool(true);
    }
    return QBool(false);
}

#ifndef QT_NO_REGEXP

QStringList QtPrivate::QStringList_filter(const QStringList *that, const QRegExp &rx)
{
    QStringList res;
    for (int i = 0; i < that->size(); ++i)
        if (that->at(i).contains(rx))
            res << that->at(i);
    return res;
}
#endif

void QtPrivate::QStringList_replaceInStrings(QStringList *that, const QString &before,
                                             const QString &after, Qt::CaseSensitivity cs)
{
    for (int i = 0; i < that->size(); ++i)
        (*that)[i].replace(before, after, cs);
}


#ifndef QT_NO_REGEXP

void QtPrivate::QStringList_replaceInStrings(QStringList *that, const QRegExp &rx, const QString &after)
{
    for (int i = 0; i < that->size(); ++i)
        (*that)[i].replace(rx, after);
}
#endif

QString QtPrivate::QStringList_join(const QStringList *that, const QString &sep)
{
    int totalLength = 0;
    const int size = that->size();

    for (int i = 0; i < size; ++i)
        totalLength += that->at(i).size();

    if(size > 0)
        totalLength += sep.size() * (size - 1);

    QString res;
    if (totalLength == 0)
    return res;
    res.reserve(totalLength);
    for (int i = 0; i < that->size(); ++i) {
        if (i)
            res += sep;
        res += that->at(i);
    }
    return res;
}

#ifndef QT_NO_DATASTREAM

#endif // QT_NO_DATASTREAM

#ifndef QT_NO_REGEXP
static int indexOfMutating(const QStringList *that, QRegExp &rx, int from)
{
    if (from < 0)
        from = qMax(from + that->size(), 0);
    for (int i = from; i < that->size(); ++i) {
        if (rx.exactMatch(that->at(i)))
            return i;
    }
    return -1;
}

static int lastIndexOfMutating(const QStringList *that, QRegExp &rx, int from)
{
    if (from < 0)
        from += that->size();
    else if (from >= that->size())
        from = that->size() - 1;
    for (int i = from; i >= 0; --i) {
        if (rx.exactMatch(that->at(i)))
            return i;
        }
    return -1;
}

int QtPrivate::QStringList_indexOf(const QStringList *that, const QRegExp &rx, int from)
{
    QRegExp rx2(rx);
    return indexOfMutating(that, rx2, from);
}

int QtPrivate::QStringList_indexOf(const QStringList *that, QRegExp &rx, int from)
{
    return indexOfMutating(that, rx, from);
}

int QtPrivate::QStringList_lastIndexOf(const QStringList *that, const QRegExp &rx, int from)
{
    QRegExp rx2(rx);
    return lastIndexOfMutating(that, rx2, from);
}

int QtPrivate::QStringList_lastIndexOf(const QStringList *that, QRegExp &rx, int from)
{
    return lastIndexOfMutating(that, rx, from);
}
#endif

int QtPrivate::QStringList_removeDuplicates(QStringList *that)
{
    int n = that->size();
    int j = 0;
    QSet<QString> seen;
    seen.reserve(n);
    for (int i = 0; i < n; ++i) {
        const QString &s = that->at(i);
        if (seen.contains(s))
            continue;
        seen.insert(s);
        if (j != i)
            (*that)[j] = s;
        ++j;
    }
    if (n != j)
        that->erase(that->begin() + j, that->end());
    return n - j;
}

QT_END_NAMESPACE