fuzzy logic through pig programming

[Harshit Bhargava]

Hi,
I want a fuzzy logic in pig latin language which should match two string for
Example1
I have two words ‘Ramesh’ and ‘Rahim’ I want to check how much percentage
of the string are equal
Example2
If the two words are ‘Ramesh’ and ‘Ramesh’ .then  it should give 100%.
Kindly provide the solution if available.
Thanks
Harshit Bhargava