17. The system of claim 16 further comprising a policy management system component, coupled to the data monitoring component, to create the abstract data structure by identifying a plurality of tokens within the source data based on the tabular format, for each token in a word-based language, creating a signature of a relevant token, and adding the signature to the abstract data structure, and for each token in the character-based language, creating a token delimiter indicator and a signature of a relevant token, and adding the token delimiter indicator and the signature to the abstract data structure.
18. The system of claim 17 wherein the token delimiter indicator comprises a value of a first character of the relevant token and the length of the relevant token.