#!/usr/bin/python

# Clean out files which look to have been generated by antlr

# Author: Colin Walters <walters@verbum.org>

# This file is hereby placed into the public domain.

import os,sys,re

_antlr_compiled_re = re.compile(r'// \$ANTLR.*:.*->.*\$$')

def clean_antlr_generated(basedir):

  for (dpath,subdirs,fnames) in os.walk(basedir):

    for fname in fnames:

      fpath = os.path.join(dpath, fname)

      f = open(fpath)

      first = f.readline()

      f.close()

      if _antlr_compiled_re.match(first):

        print "Deleting antlr-compiled %s" % (fpath,)

        os.unlink(fpath)

if __name__ == '__main__':

  basedir = sys.argv[1]

  clean_antlr_generated(basedir)