1 import chardataeffect, inkex, string
3 import random
5 class C(chardataeffect.CharDataEffect):
7 def process_chardata(self,text, line, par):
8 r = ""
9 a = 1
10 for i in range(len(text)):
11 c = text[i]
12 # bias the randomness towards inversion of the previous case:
13 if a > 0:
14 a = random.choice([-2,-1,1])
15 else:
16 a = random.choice([-1,1,2])
17 if a > 0 and c.isalpha():
18 r = r + c.upper()
19 elif a < 0 and c.isalpha():
20 r = r + c.lower()
21 else:
22 r = r + c
24 return r
26 c = C()
27 c.affect()