TianZD/QtXlsxWriter
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Improve Document::read() support for shared formula

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This commit is contained in:
Debao Zhang
2014-10-28 15:56:45 +08:00
parent 41e3dc1bf7
commit c1aca6994e
3 changed files with 53 additions and 30 deletions
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src/xlsx/xlsxutility.cpp
+41 -27
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@@ -159,62 +159,76 @@ bool isSpaceReserveNeeded(const QString &s)
*/
QString convertSharedFormula(const QString &rootFormula, const CellReference &rootCell, const CellReference &cell)
{
//Find all the "[A-Z]+[0-9]+" patterns in the rootFormula.
QList<QPair<QString, bool> > segments;
//Find all the "$?[A-Z]+$?[0-9]+" patterns in the rootFormula.
QList<QPair<QString, int> > segments;
QString segment;
bool inQuote = false;
int cellFlag = 0; //-1, 0, 1, 2 ==> Invalid, Empty, A-Z ready, A1 ready
enum RefState{INVALID, PRE_AZ, AZ, PRE_09, _09};
RefState refState = INVALID;
int refFlag = 0; // 0x00, 0x01, 0x02, 0x03 ==> A1, $A1, A$1, $A$1
foreach (QChar ch, rootFormula) {
if (inQuote) {
segment.append(ch);
if (ch == QLatin1Char('"')) {
segments.append(qMakePair(segment, false));
segment = QString();
if (ch == QLatin1Char('"'))
inQuote = false;
cellFlag = 0;
}
} else {
if (ch == QLatin1Char('"')) {
segments.append(qMakePair(segment, false));
segment = QString(ch);
inQuote = true;
refState = INVALID;
segment.append(ch);
} else if (ch == QLatin1Char('$')) {
if (refState == AZ) {
segment.append(ch);
refState = PRE_09;
refFlag |= 0x02;
} else {
segments.append(qMakePair(segment, refState==_09 ? refFlag : -1));
segment = QString(ch); //Start new segment.
refState = PRE_AZ;
refFlag = 0x01;
}
} else if (ch >= QLatin1Char('A') && ch <=QLatin1Char('Z')) {
if (cellFlag == 0 || cellFlag == 1) {
if (refState == PRE_AZ || refState == AZ) {
segment.append(ch);
} else {
segments.append(qMakePair(segment, (cellFlag == 2)));
segment = QString(ch); //start new "A1" segment
segments.append(qMakePair(segment, refState==_09 ? refFlag : -1));
segment = QString(ch); //Start new segment.
refFlag = 0x00;
}
cellFlag = 1;
refState = AZ;
} else if (ch >= QLatin1Char('0') && ch <=QLatin1Char('9')) {
segment.append(ch);
if (cellFlag == 1)
cellFlag = 2;
if (refState == AZ || refState == PRE_09 || refState == _09)
refState = _09;
else
refState = INVALID;
} else {
if (cellFlag == 2) {
segments.append(qMakePair(segment, true)); //find one "A1" segment
segment = QString(ch);
if (refState == _09) {
segments.append(qMakePair(segment, refFlag));
segment = QString(ch); //Start new segment.
} else {
segment.append(ch);
}
cellFlag = -1;
refState = INVALID;
}
}
}
if (!segment.isEmpty())
segments.append(qMakePair(segment, (cellFlag == 2)));
segments.append(qMakePair(segment, refState==_09 ? refFlag : -1));
//Replace "A1" segment with proper one.
//Replace "A1", "$A1", "A$1" segment with proper one.
QStringList result;
typedef QPair<QString, bool> PairType;
typedef QPair<QString, int> PairType;
foreach (PairType p, segments) {
if (p.second) {
//qDebug()<<p.first<<p.second;
if (p.second != -1 && p.second != 3) {
CellReference oldRef(p.first);
CellReference newRef(oldRef.row()-rootCell.row()+cell.row(),
oldRef.column()-rootCell.column()+cell.column());
result.append(newRef.toString());
int row = p.second & 0x02 ? oldRef.row() : oldRef.row()-rootCell.row()+cell.row();
int col = p.second & 0x01 ? oldRef.column() : oldRef.column()-rootCell.column()+cell.column();
result.append(CellReference(row, col).toString(p.second & 0x02, p.second & 0x01));
} else {
result.append(p.first);
}