std.locale

[Derek Parnell]

On Mon, 02 Mar 2009 07:02:10 -0800, Andrei Alexandrescu wrote:

> Consider some code in phobos that must throw an exception:
> 
> throw Exception("File `%s' not found, system error is %s.",
>      filename, errnomsg);
> 
> The localized version will look like this:
> 
> auto format = "File `%s' not found, system error is %s.";
> auto localFormat = currentLocale ? currentLocale.peek(format) : null;
> if (!localFormat) localFormat = format;
> throw Exception(localFormat, filename, errnomsg);

One problem with this approach is that we meet the limitation of the
formatting string's micro-syntax. Currently, there is no way to reorder the
tokens in a message string, and that is required for /some/ messages in
/some/ languages.

I have used my own text formatting routine rather than Phobos' because it
allows the implementer to develop messages whose word order is correct for
their target language.

-- 
Derek Parnell
Melbourne, Australia
skype: derek.j.parnell