Maybe a regex substitute would be faster, if you know the delimiter won't appear in the array. Something like: 
foreach (@$arry) {
    my $x = join("\n", @$_);
    $x =~ s/^${from}$/${to}/mg;
    @$_ = split("\n", $x);
}

[download]
Also, if you're just modifying the array in-place, map is inefficient because it accumaltes the results into an array.

In reply to Re: Fast search/replace? by Anonymous Monk
in thread Fast search/replace? by weingart

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