array to string functional?

[Paul Backus]

On Saturday, 15 September 2018 at 20:04:36 UTC, berni wrote:
> Anotherone I'm not getting to work: From some output with 
> newlines I want to discard all lines, that start with a # and 
> select part of the other lines with a regex. (I know the regex 
> r".*" is quite useless, but it will be replaced by something 
> more usefull.)
>
> I tried the following, but non worked:
>
>> output.split("\n").filter!(a=>a.length>0 && 
>> a[0]!='#').matchFirst(r".*");
>
>> output.split("\n").filter!(a=>a.length>0 && 
>> a[0]!='#').array.matchFirst(r".*");
>
>> output.split("\n").filter!(a=>a.length>0 && 
>> a[0]!='#').array.map!(matchFirst(r".*"));
>
>> output.split("\n").filter!(a=>a.length>0 && 
>> a[0]!='#').array.map!(a=>matchFirst(a,r".*"));
>
> Any ideas?

Your last example works for me: https://run.dlang.io/is/F5n3mk

Can you post a complete, runnable example that illustrates your 
problem?