[address1][,address2]y/abc/xyz/
address1
,
address2
y/
abc
/
xyz
Translate characters. Change every instance of a to x, b to y, c to z, etc.
a
x
b
y
c
z
# Change item 1, 2, 3 to Item A, B, C ... /^item [1-9]/y/i123456789/IABCDEFGHI/