A partition token scanner returns tokens that represent partitions. For that reason,
a partition token scanner is vulnerable in respect to the document offset it starts
scanning. In a simple case, a partition token scanner must always start at a partition
boundary. A partition token scanner can also start in the middle of a partition,
if it knows the type of the partition.
void setPartialRange(IDocument document,
Configures the scanner by providing access to the document range that should be scanned. The
range may not only contain complete partitions but starts at the beginning of a line in the
middle of a partition of the given content type. This requires that a partition delimiter can
not contain a line delimiter.
document - the document to scan
offset - the offset of the document range to scan
length - the length of the document range to scan
contentType - the content type at the given offset
partitionOffset - the offset at which the partition of the given offset starts