Big features
* Variable context (xid, call in RPC)? -- no variable context
* Helpers
* Connection states and actions
* Case and analyzer redef
* &also withinput
* Explicit analyzer context (interface + instantiation) "withcontext"
+ Interface with C++ and Zeek (events, extern, weird)
+ Incremental input
+ ASCII protocols
+ Reassembly
- Dealing with exceptions
- Dependency analysis to save parsing time on unused fields
- Performance measurement

Small features
* Restructure the code: break up pac.{h,cc}
* ref counting (to keep certain structures)
* analyzer context as a parameter of class
* &autolength
* find a better name for "analyzer_context" ("analcxt", "context", "analyzer") $context
* &if
* &autolength (now &restofdata)
* Use vector<> instead of array<>?
* set end_of_data when &length = ...
- make the `default' case mandatory?
- &inline
- &warn and &check? (follow &if)
- typedef?

Binpac 1
- create a namespace for each .pac file
- type equivalence
- byteorder() for every type?