Michael a écrit :
> Hi,
> I'm trying to write a script to parse a .cpp file and begin to create a
> 'translational unit'.
> To do this i need to:
>
> Go through the file and remove all 'C' comments as
> /* Comment 1*/
> (can be on multiple lines)
>
> Go through and remove all 'C++' comments, anything between // and '\n' char.
>
> The start at the top, and work the way through, with the following valid
> terms:
>
> #include <filename>
> #include "filename"
> - copy the contents of filename to this point in the file and continue.
>
> #define X Y
> -Store the term X,Y in DefineDictionary, then later if X is encountered,
> substitute Y.
>
> namespace n
> {
>
> };
> -a namespace, can contain classes, functions and sub-namespaces
>
> class c
> {
>
>
> };
> -a class.
>
>
> If i were to process this in C++, i would create some form of statemachine,
> similar to a regex engine... I would just like some ideas on the easiest way
> to implment this in python!!
I have no real answer, but well:
- there's a regexp module in the stdlib
- there's a quite nice FSM implementation on the Python Cookbook
- there are many Python-based parser generators
And I would of course recommand the reading of "Text Processing in
Python"...
HTH
Bruno
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