I have the following code for masking numbers

my $len = length $Number;
substr($Number, 6, $len - 10) = 'X' x ($len - 10);

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Through this code i can i show the first 6 and last 4 digits eg:541321069873210200 is masked as 541321XXXXXXXX0200. But the problem is that when there is a seperator in between the numbers that is also counted as a result of which 5413 21069873210200 is masked as 5413 2XXXXXXXXX0200which only shows the first 5 digits instead of 6.

Please help

In reply to numbers masking by Anonymous Monk

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