1. A method, comprising: (a) receiving a behavior-descriptive input stream; determining, by a meta-parser that performs a preliminary parse on one or more portions of the input stream, a structure of the input stream for either subsequent selection of a parser or subsequent creation of a parser, the meta-parser outputting the input stream and an indication of whether the meta-parser was able to successfully parse the input stream, the input stream output from the meta-parser being passed to the parser; (b) lexically analyzing the behavior-descriptive input stream to provide a tokenized equivalent; (c) syntactically parsing the tokenized equivalent to provide a parser output; (d) semantically analyzing, by a processor, the parser output to provide an indication of at least one of a behavior and type of behavior described by the input stream; and (e) based on the indication, selecting an appropriate response.