regex format string problem

[yawniek via Digitalmars-d-learn]

Hi Rikki,

On Monday, 23 November 2015 at 03:57:06 UTC, Rikki Cattermole 
wrote:
> I take it that browscap[0] does it not do what you want?
> I have an generator at [1].
> Feel free to steal.

This looks interesting, thanks for the hint. However it might be 
a bit limited,
i have 15M+ different User Agents with all kind of weird cases, 
sometimes not even the extensive ua-core regexs work. (if you're 
interested for testing let me know)

> Also once you do get yours working, you'll want to use ctRegex 
> and generate a file with all of them in it. That'll increase 
> performance significantly.

that was my plan.

> Reguarding regex, if you want a named sub part use:
> (?<text>[a-z]*)
> Where [a-z]* is just an example.
>
> I would recommend you learning how input ranges work. They are 
> used with how to get the matches out, e.g.
>
> auto rgx = ctRegex!`([a-z])[123]`;
> foreach(match; rgx.matchAll("b3")) {
>     writeln(match.hit);
> }

i'm aware how this works, the problem is a different  one:

i do have a second string that contains $n's which can occur in 
any order.
now of course i can just go and write another regex and replace 
it, job done.
but from looking at std.regex this seems to be built in, i just 
failed to get it to work properly, see my gist. i hoped this to 
be a 1liner.