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#include "tsvserializer.h"
#ifdef Q_OS_MACX
QString TsvSerializer::rowSeparator = "\r";
#else
QString TsvSerializer::rowSeparator = "\n";
#endif
QString TsvSerializer::columnSeparator = "\t";
QString TsvSerializer::serialize(const QList<QStringList>& data)
{
QStringList outputRows;
for (const QStringList& dataRow : data)
outputRows << serialize(dataRow);
return outputRows.join(rowSeparator);
}
QString TsvSerializer::serialize(const QStringList& data)
{
QString value;
bool hasQuote;
QStringList outputCells;
for (const QString& rowValue : data)
{
value = rowValue;
hasQuote = value.contains("\"");
if (value.contains(columnSeparator) || value.contains(rowSeparator))
{
if (hasQuote)
value.replace("\"", "\"\"");
value = "\""+value+"\"";
}
outputCells << value;
}
return outputCells.join(columnSeparator);
}
QList<QStringList> TsvSerializer::deserialize(const QString& data)
{
QList<QStringList> rows;
QStringList cells;
QStringList tokens;
QStringList parts = data.split(columnSeparator);
for (const QString& part : parts)
{
if (!part.contains(rowSeparator))
{
cells << part;
continue;
}
tokens = tokenizeStrWithRowSeparator(part);
for (const QString& token : tokens)
{
if (token != rowSeparator)
{
cells << token;
continue;
}
rows << cells;
cells.clear();
}
}
if ((cells.size() > 0 && !cells.first().isEmpty()) || cells.size() > 1)
rows << cells;
return rows;
}
QStringList TsvSerializer::tokenizeStrWithRowSeparator(const QString& data)
{
QStringList tokens;
int pos = 0;
int lgt = data.length();
bool quotes = false;
QString field = "";
QChar c;
while (pos < lgt)
{
c = data[pos];
if (!quotes && c == '"' )
{
if (field.isEmpty())
quotes = true;
field += c;
}
else if (quotes && c == '"' )
{
field += c;
if (pos + 1 < data.length() && data[pos+1] == '"' )
{
field += c;
pos++;
}
else
{
quotes = false;
}
}
else if (!quotes && c == rowSeparator)
{
tokens << flushToken(field);
field.clear();
tokens << QString(c);
}
else
{
field += c;
}
pos++;
}
if (field.size() > 0)
tokens << flushToken(field);
return tokens;
}
QString TsvSerializer::flushToken(const QString& token)
{
if (!token.startsWith('"') || !token.contains(rowSeparator))
return token;
int decr = 1;
if (token.endsWith('"'))
decr++;
return token.mid(1, token.length() - decr).replace("\"\"", "\"");
}
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