Hi there, I'm using boost::wave to implement a C/C++ preprocessor for the Synopsis (http://synopsis.fresco.org/) project. I have just been asked for support of the '-include' command line option, which, for typical compilers, means to preload an include file before parsing the actual input. I wonder how to implement that with wave. The wave::context<> constructor expects two input iterators (begin and end) which it will use during parsing. Relying only on this would mean I have to write my own iterators (or wrapper container) that is able to switch from one input source (the one specified by '-include') to the next (the actual input file). However, I believe there is a lot of value in wave::context<> being able to do that internally (either, by allowing to reassign a new pair of iterators, or by providing a copy constructor for the context that creates a new context from a new pair of iterators, but inherits the state of an existing context). Does anything like this exist ? Are there plans to support such use cases ? Many thanks, Stefan -- ...ich hab' noch einen Koffer in Berlin...