Joerg Schuelke schrieb:
I see this point and it is one reason for me to think very careful
about: "Is it possible to do it without touching the scanner?"
Is the rest interesting enough to make it worth a further thinking.
If not, trash it.
The macro definition and expansion has to be changed.
Macro definition has to handle the formal parameter list, and this added
code will execute only when a parameter list is present.
Macro expansion will have to deal with the actual parameter list, also
only when such a macro is used. With proper separation of old and new
macro handling (with/out parameters), the new code again only executes
when new macros are used in the code.
DoDi
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