CheckForTabs returns true if data has tabs in it.

GenerateSyntaxError converts from the offset error message into a human readable syntax error.

TabListing shows tabs as '\\t' instead of a whitepace.

Debug if true will turn on extra debugging output.

HintList a set of possible, sometimes naive, hints on how to find/fix error.

HintType is a single hint on what might have cause the error.