8. The method as recited in claim 4 wherein said language boundary determining step further comprises: parsing said data stream so as to identify keys for said control languages; and indicating the presence or absence of a language boundary when sufficient key values from a control language are accumulated to equal a key value threshold.
8. The method as recited in claim 4 wherein said language boundary determining step further comprises: parsing said data stream so as to identify keys for said control languages; and indicating the presence or absence of a language boundary when sufficient key values from a control language are accumulated to equal a key value threshold. 9. The method as recited in claim 8 wherein each identified key is assigned a weight and said weights are summed to determine if said key value threshold has been reached.