Hi Steve,

I looked at this again. I think the comment disturbed me because
there is also an example "4a" and I first wondered if there is really
a special treatment for this, and the old (wrong) code did not show
so clearly what was really meant.
I've attached a small patch to improve the comments.

Gerd

> Date: Fri, 21 Nov 2014 09:58:13 +0000
> From: steve@parabola.me.uk
> To: mkgmap-dev@lists.mkgmap.org.uk
> Subject: Re: [mkgmap-dev] Assertion error with r3350
>
> Hi Gerd
>
> > for SimpleStreetPhoneNumber are a bit confusing.
> > I don't understand the (or A) in "If the string is not all numeric (or A) "
>
> The code converts from base 11 to a string using a general routine so
> that it uses 0123456789A in the same way that hexadecimal uses
> 0123456789ABCDEF.
>
> Since that routine is not used elsewhere, we could make it specific
> to base 11 and replace String digit =
> "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
> with "0123456789-"
>
> ..Steve
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