I would like to know how I can access directly the input char stream in 
camlp4

i want a

c-code { ... }

producing an empty str_item, but consuming the c-code in the { ... "} 
and outputing it in a separate file. An easy way is to access directly 
the char stream, but I do not find it (actually, looking at the source 
it is not stored in an accessible variable.

Someonce see a solution, other that parsing a string ?

[ [ c_code STRING -> ... ] ] would be easy, but is not very satisfactory.