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1 import re
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2 comment = re.compile('/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+/', re.MULTILINE)
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3
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4 def read(filename):
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5 token = '##//' # magical token
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6 lines = [i.strip() for i in file(filename).readlines() if i.strip()]
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7 retval = {}
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8 _lines = []
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9 for line in lines:
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10 if line.startswith('#'):
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11 continue
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12 if '//' in line:
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13 line = line.replace('//', token)
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14 _lines.append(line)
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15 string = '\n'.join(_lines)
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16 string = re.sub(comment, '', string)
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17 def pref(a, b):
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18 retval[a] = b
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19 lines = [i.strip().rstrip(';') for i in string.split('\n') if i.strip()]
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20 for line in lines:
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21 try:
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22 _globals = {'retval': retval, 'pref': pref, 'user_pref': pref, 'true': True, 'false': False}
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23 eval(line, _globals, {})
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24 except SyntaxError:
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25 print line
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26 import pdb; pdb.set_trace()
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27 for key in retval:
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28 if isinstance(retval[key], basestring) and token in retval[key]:
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29 retval[key] = retval[key].replace(token, '//')
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30 return retval
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31
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32 def write(filename, prefs, pref_string='user_pref("%s", %s);'):
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33 f = file(filename, 'w')
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34 for key, value in prefs.items():
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35 if value is True:
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36 print >> f, pref_string % (key, 'true')
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37 elif value is False:
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38 print >> f, pref_string % (key, 'true')
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39 elif isinstance(value, basestring):
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40 print >> f, pref_string % (key, repr(string(value)))
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41 else:
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42 print >> f, pref_string % (key, value) # should be numeric!
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43 f.close()
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44
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45 if __name__ == '__main__':
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46 import sys
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47 if not sys.argv[1:]:
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48 sys.exit(1)
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49 print read(sys.argv[1])
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