void TagConverter::applyPatternToColumns()
{
QList<int> columns;
//QRegularExpression re = this->generatePattern2(fileToTagLineEdit);
///
QString text = fileToTagLineEdit->text();
text = text.replace(':', '_');
// Remove and convert spaces according to columns
for (int i = fileToTagLineEdit->tags().count() - 1; i >= 0; i--) {
TagButton *tag = fileToTagLineEdit->tags().at(i);
QString substitution = ':' + QString::number(tag->column());
columns.prepend(tag->column());
text.replace(tag->position(), tag->spaceCount(), substitution);
}
QString pattern = "^";
QString characterClass;
// Depending on which detected columns, choose a sub-regex
for (int i = 0; i < text.size(); i++) {
QChar c = text.at(i);
if (c == ':') {
c = text.at(++i);
switch (c.digitValue()) {
case Miam::COL_Track:
case Miam::COL_Year:
case Miam::COL_Disc:
characterClass = "[\\d]+"; // Digits
break;
default:
characterClass = "[\\w\\W]+";
break;
}
pattern += "(" + characterClass + ")";
} else {
pattern += QRegularExpression::escape(text.at(i));
}
}
pattern += "$";
QRegularExpression re(pattern, QRegularExpression::UseUnicodePropertiesOption);
for (QModelIndex index : _tagEditor->selectionModel()->selectedRows()) {
QString filename = index.data().toString();
filename = filename.left(filename.lastIndexOf("."));
QRegularExpressionMatch m = re.match(filename);
if (!m.hasMatch()) {
continue;
}
// The implicit capturing group with index 0 captures the result of the whole match.
for (int i = 0; i < re.captureCount(); i++) {
_tagEditor->updateCellData(index.row(), columns.at(i), m.captured(i + 1));
}
}
this->setVisible(false);
_convertButton->setChecked(false);
}
QString TagConverter::generatePattern(TagLineEdit *lineEdit) const
{
QString pattern = lineEdit->text();
pattern = pattern.replace(':', '_');
/// XXX code review needed
// Proceed to substitutions in reverse order
for (int i = lineEdit->tags().count() - 1; i >= 0; i--) {
TagButton *tag = lineEdit->tags().at(i);
QString substitution = ':' + QString::number(tag->column());
pattern.replace(tag->position(), tag->spaceCount(), substitution);
}
return pattern;
}