I'm trying to analyze the usage of certain words in a large number of spam emails, and I want for every interesting word a list of 'providors', that mentioned that word. with associative arrays I hoped to get it by using array["interestingworde].
And I have to refer outside from sort(x,y) as associative arrays have no order, I'll always have to sort a key-array according to values obtained through the associative array. It's supposed to be a delegate anyway, otherwise the least it could do is throw a compilation error. 2014-05-28 12:53 GMT+02:00 Wanderer via Digitalmars-d-learn < digitalmars-d-learn@puremagic.com>: > On Wednesday, 28 May 2014 at 10:10:41 UTC, maarten van damme via > > Digitalmars-d-learn wrote: > >> an anyone explain me what I'm doing wrong here : >> >> [code] >> dstring[][dstring] providor_symbol_map; >> ... >> >> writeln(providor_symbol_map.keys.sort!((x,y)=>providor_ >> symbol_map[x].length>=providor_symbol_map[y].length)); >> [/code] >> >> output: >> core.exception.RangeError@std.algorithm(9429): Range violation >> > > "dstring[][dstring]" declaration looks a bit obscure to me... > what do you intent with it, "array of maps" or "map of arrays"? > > Also, it looks unnatural that inside sorting lambda, you refer > outside from it (back to providor_symbol_map variable). Ideally, > you should only use variables x and y. Does D support sorting by > map entries instead of by keys only or by values only? >
