On Mon, 15 Oct 2012 12:08:30 +0200
Sietse Brouwer <sbbrou...@gmail.com> wrote:
> > There is a bug with format() as redefined in m-graph.mkiv
> > 1e10 and 1e-10 truncate the tailing 0.
>
> The function strip() is removing 0 throughout the exponent, and I
> don't know what purpose that might serve. If we never want to remove
> zeroes, this works:
>
> local function strip(s)
> - return "\\times10^{"..(s:gsub("%+*0*","")).."}"
> + return "\\times10^{"..(s:gsub("%+*","")).."}"
> end
>
> Note that if the exponent is zero the "× 10^0" will be left out
> completely, in both the old and the new strip() function. This seems
> to be by design. Illustration of this behaviour:
>
> \usemodule[graph]
> \starttext
> \startMPpage
> label(format("@g","1e+0"),(2cm,-1cm)) ;
> \stopMPpage
> \stoptext
Thanks, this "fixes" it for now,
but I believe that the strip is intended to remove leading zeros, as in
label(format("@g","1e+08"),(2cm,-1cm)) ;
I suppose that the correct syntax must be something like the regex
s/[+-]*0*\([1-9]\)/\1/
(not sure how to state this in lua gsub()...)
Alan
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