Hi all, I am trying to come up with a way to compare two arrays. I don't want to just find the intersection and such, I want to end up with map of where each element in the second array was derived from in the first array. Something like this: 
my @array1=qw(I like to eat tacos);
my @array2=qw(Do you like to eat burritoes);
my @diff=get_diff(\@array1,\@array2);
@diff=(
   ['Do',0,0],
   ['you',1,0],
   ['like',2,1],
   ['to',3,2],
   ['eat',4,3],
   ['burritoes',5,4]
);

[download]
Note that if one element appears to have replaced another such as "burritoes" replaces "tacos", those elements are mapped together. I was wondering if there was some module out there that did something like this. I have been playing around with different algorthims, but I wanted to be sure I am not just reinventing the wheel.

In reply to Diff between two arrays by fletcher_the_dog

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