NestedMap 1.0

NestedMap is a module to make nesting map{}s inside map{}s easierc. SYNOPSIS # show all combinations of (A,B,C) (a,b,c) and (1,2,3) print join("n", nestedmap { nestedmap { nestedmap { join(,@NestedMap::stack[0..2]) } qw(A B C) } qw(a b c) } qw(1 2 3) ); # a zip() function for any number of lists of varying length sub zipn { my @args = @_; [ nestedmap { nestedmap { defined($args[$_][$NestedMap::stack[1]]) ? $args[$_][$NestedMap::stack[1]] : } 0..$#args } 0 .. max(map { $#{$_[$_]} } 0..$#args) ] } NB - older versions of perl may not like the code blocks I use in these examples. You may have to use: nestedmap sub { ... }, @list; instead of nestedmap { ... } @list; See the test suite for examples of the above code modified to use that syntax..

Requirements:	No special requirements
Platforms:	Linux
Keyword:	Inside,  Libraries,  Map,  Module,  Nestedmap,  Nesting,  Programming,  To Make
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