compare files

Hi,

Before to ask my firts question of the year.
Happy new year to all !


Then,
I have some difficulties to compare two files with with many arguments.



File A.txt

henry;1;
christophe;1;
bill;1;
nathalie;2;
jane;2;
william;1;
dominique;1 2;
pierre-henry;1;


File B.txt

( 'TA', 'Christophe', 'Jane', 'Christophe', 'US', 'New York')
( 'XA', 'Dominique', 'Grant', 'Dominique', 'US', 'New York'),
( 'XA', 'Bill', 'Jane', 'Bill', 'US', 'New York'),
( 'BC', 'Nathalie', 'Portman', 'Nathalie', 'US', 'New York'),
( 'BC', 'Pierre', 'Robert', 'Pierre', 'US', 'New York'),
( 'XV', 'Jane', 'Fonda', 'Jane', 'IT', 'Roma'),
( 'HG', 'William', 'Jefferson', 'William', 'US', 'Chicago'),
( 'HG', 'Barberousse', 'Pirate', 'Barberousse', 'US', 'Chicago'),
( 'XA', 'Henry', 'Grant', 'Henry', 'US', 'Miami'),



In file B, if the EXACT content of the colum 4 exist in the first colum in the file A.txt, then replace it with the value of the second colum of the file A.txt . it should be only 1 OR 2

And

In file B, if the EXACT content of the colum 4 does not exist in the first colum in the file A.txt, then replace  the value of the fourth colum of the file B.txt  with 0 .




I hope to be clear...


Here is the expected result in the example I have just given


Need Result.
( 'TA', 'Christophe', 'Jane', '1', 'US', 'New York')
( 'XA', 'Dominique', 'Grant', '0', 'US', 'New York'),
( 'XA', 'Bill', 'Jane', '1', 'US', 'New York'),
( 'BC', 'Nathalie', 'Portman', '2', 'US', 'New York'),
( 'BC', 'Pierre', 'Robert', '0', 'US', 'New York'),
( 'XV', 'Jane', 'Fonda', '2', 'IT', 'Roma'),
( 'HG', 'William', 'Jefferson', '1', 'US', 'Chicago'),
( 'HG', 'Barberousse', 'Pirate', '0', 'US', 'Chicago'),
( 'XA', 'Henry', 'Grant', '1', 'US', 'Miami'),


Any suggestions ?

Best regards,
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