String Frame::searchForLabelsAboveCell(RegularExpression* regExp, HTMLTableCellElement* cell, size_t* resultDistanceFromStartOfCell)
{
HTMLTableCellElement* aboveCell = cell->cellAbove();
if (aboveCell) {
// search within the above cell we found for a match
size_t lengthSearched = 0;
for (Node* n = aboveCell->firstChild(); n; n = n->traverseNextNode(aboveCell)) {
if (n->isTextNode() && n->renderer() && n->renderer()->style()->visibility() == VISIBLE) {
// For each text chunk, run the regexp
String nodeString = n->nodeValue();
int pos = regExp->searchRev(nodeString);
if (pos >= 0) {
if (resultDistanceFromStartOfCell)
*resultDistanceFromStartOfCell = lengthSearched;
return nodeString.substring(pos, regExp->matchedLength());
}
lengthSearched += nodeString.length();
}
}
}
// Any reason in practice to search all cells in that are above cell?
if (resultDistanceFromStartOfCell)
*resultDistanceFromStartOfCell = notFound;
return String();
}
