DWT2 Phobos-compatible logging suggestion

[Jacob Carlborg]

On 2010-07-13 23.00, torhu wrote:
> Ok, this is sort my way to get some cooperation going on the DWT
> project.  Check it out and make suggestions for improvements, or just
> say "ok" if you approve :)
>
> I've been trying for a couple of hours to find a way to do logging
> that's compatible with both Phobos and Tango.
>
> Here's what I came up with, this is tested and working:
> http://pastebin.ca/1900029
>
> This is what I had to take into consideration:
>
> 1) Phobos formatting uses functions like format(...), while tango uses
> format(char[] fmt, ...). Using the signature func(T...)(String fmt, T
> args) was the simplest way I found to be able to just forward arguments
> to both kinds of formatters.
>
> 2) Format specifiers are different. I just did fmt = replace(fmt, "{}",
> "%s") in the Phobos version, which takes care of most cases. We can
> revisit this later if there's an actual need for more flexible formatting.
>
> 3) The IDwtLogger interface had to go, as template member functions
> cannot be virtual. Cfr. item 1. The interface was not put to use
> anywhere, so this should be of no concern.
>
> 4) ExceptionPrintStackTrace has become less flexible, but this shouldn't
> matter and can easily be fixed if needed.

Seems good, just a question: what is this diff against? Is it to your 
own branch or to the DWT2 main branch? I don't see a version condition 
in ExceptionPrintStackTrace in the DWT2 main branch for example.

-- 
Jacob Carlborg