#!/usr/bin/env python
import chardataeffect, inkex, string
class C(chardataeffect.CharDataEffect):
def process_chardata(self,text, line, par):
r = ""
for i in range(len(text)):
c = text[i]
if c.islower():
r = r + c.upper()
elif c.isupper():
r = r + c.lower()
else:
r = r + c
return r
c = C()
c.affect()