CJS:
Unfortunately my current best attemp doesn't compile:
What errors are you seeing?
auto cross(R1, R2)(in R1 A, in R2 B){
Better to add a space before the open brace.
Also you may want to remove "in" if you want to use cross() on
lazy ranges.
return cartesianProduct(A,B).map!(ab => ab[].text).array;
And a space after the comma.
string letters = "ABCDEFGHI";
string digits = "123456789";
And a enum/const/immutable for variables that don't need to
change.
unitlist ~= cross(rows, to!string(c));
to!string(c) ===> c.text
units[s] = filter!(x=>any!(y=>(s==y)))(unitlist);
Better to use UFCS here, don't forget spaces around operators:
units[s] = unitlist.filter!(x => any!(y => (s == y)));
And filter returns a lazy range, so perhaps that doesn't work.
For the associative arrays I'm unsure I have the correct calls,
but they looked reasonable. Any suggestions?
Phobos needs a very handy set().
Bye,
bearophile
