Directory filtering when parsing cpp files in get-include in python bindings / clang

Question

I have to write a python-clang parser that returns all inclusions in cpp files. Therefore, I use sth as the following code:

def _main():
    from clang.cindex import Index
    from optparse import OptionParser

    filter=['/usr/lib','usr/include']
    p=OptionParser()
    (o,a)=p.parse_args()
    i=Index.create()
    t=i.parse(None,a)
    for i in t.get_includes():
        print i.include

if __name__=='__main__':
    _main()

Now I need to filter out only some inclusions, such as specific directories:

filter=['/usr/lib','usr/include']

Question 1: I would like to know how this filtering is possible and how should my code change?

Question 2: How to make a configuration file to include all these filters in it, and not just impose them hard-coded?

to run the test: you need to have a cpp file, for example:

  #include<iostream>
  #include"ex1.h"

  int main(){
      return 0;
  }

and * .h file:

 #include<QMap>

mileage:

./python-clang.py ex1.cpp

sample results:

 /usr/include/pthread.h
 /usr/include/sched.h
 /usr/include/time.h
 /usr/include/bits/sched.h
 /usr/include/time.h
 /usr/include/bits/time.h
 /usr/include/signal.h
 /usr/include/bits/sigset.h
 /usr/include/bits/pthreadtypes.h
 /usr/include/bits/wordsize.h
 /usr/include/bits/setjmp.h
 /usr/include/bits/wordsize.h
 /usr/include/bits/wordsize.h
 /usr/include/unistd.h
 /usr/include/bits/posix_opt.h
 /usr/include/bits/environments.h
 /usr/include/bits/wordsize.h
 /usr/include/bits/confname.h
 /usr/include/getopt.h
 /usr/lib/gcc/i486-linux-gnu/4.4/../../../../include/c++/4.4/i486-linux-gnu/bits      /atomic_word.h
/usr/lib/gcc/i486-linux-gnu/4.4/../../../../include/c++/4.4/bits/locale_classes.h
/usr/lib/gcc/i486-linux-gnu/4.4/../../../../include/c++/4.4/string
/usr/lib/gcc/i486-linux-gnu/4.4/../../../../include/c++/4.4/bits/allocator.h
/usr/lib/gcc/i486-linux-gnu/4.4/../../../../include/c++/4.4/i486-linux-gnu/bits/c++allocator.h
/usr/lib/gcc/i486-linux-gnu/4.4/../../../../include/c++/4.4/ext/new_allocator.h

Answer 1

for:

...
for i in t.get_includes():
    if not i.include in filter:
        print i.include
...

, . - :

def _main():
    ...
    with open('/path/to/file/ignore.txt') as f:
        filter = f.readlines()
    ...

ignore.txt:

/usr/lib
/usr/include
...

UPDATE

.

def _main():
    ...
    with open('/path/to/file/ignore.txt') as f:
        ignore = map(lambda l: l.strip(), f.readlines())

    for i in t.get_includes():
        if not i.include.startswith(ignore):
            print i.include

, .

• filter ignore, filter .
• ignore.txt \n, a tuple list, startswith .
• , , .

results = [i.include for i in t.get_includes() if not i.startswith(ignore)]