QList<int> Differ::getPageList(int which, PdfDocument pdf)
{
// Poppler has 0-based page numbers; the UI has 1-based page numbers
QString page_string = (which == 1 ? pageRangeDoc1 : pageRangeDoc2);
bool error = false;
QList<int> pages;
page_string = page_string.replace(QRegExp("\\s+"), "");
QStringList page_list = page_string.split(",");
bool ok;
if (page_string.isEmpty())
{
for (int page = 0; page < pdf->numPages(); ++page)
pages.append(page);
}
else
{
foreach (const QString &page, page_list) {
int hyphen = page.indexOf("-");
if (hyphen > -1) {
int p1 = page.left(hyphen).toInt(&ok);
if (!ok || p1 < 1) {
error = true;
break;
}
int p2 = page.mid(hyphen + 1).toInt(&ok);
if (!ok || p2 < 1 || p2 < p1) {
error = true;
break;
}
if (p1 == p2)
pages.append(p1 - 1);
else {
for (int p = p1; p <= p2; ++p) {
if (p > pdf->numPages())
break;
pages.append(p - 1);
}
}
}
else {
int p = page.toInt(&ok);
if (ok && p > 0 && p <= pdf->numPages())
pages.append(p - 1);
else {
error = true;
break;
}
}
}
}
