Parses a log file that contains MFC sessions into a collection of sequences. $USAGE$ name of the log file optional; name of the sequences; default: sequences optional; if true, a statistic how often each message occurs in the log intended for debugging and optimization is generated; default: false Example(s): parseXML usagedata/mfc.xml parseXML usagedata/mfc.xml mfc_sequences parseXML usagedata/mfc.xml mfc_sequences true