You can assign it to a hash using split.

my $text = "pro my project con my customer date 2009-10-5 at 17:00 pri
+ 2 msg Rack new server";

my @list = split /(pro|con|date|at|pri|msg)\s/, $text;
shift @list;
my %hash = @list;
foreach(sort keys %hash) { printf "$_, %s\n", $hash{$_} }
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