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To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Translating SI notation to SPICE
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Comments: In-reply-to Evan Foss <evanfoss AT gmail DOT com>
   message dated "Tue, 11 Dec 2012 10:42:25 -0500."
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Date: Tue, 11 Dec 2012 17:47:45 +0100 (CET)
From: karl AT aspodata DOT se (Karl Hammar)
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Evan Foss:
> On Tue, Dec 11, 2012 at 9:17 AM, Karl Hammar <karl AT aspodata DOT se> wrote:
> > Evan Foss:
> >> On Tue, Dec 11, 2012 at 3:00 AM, Karl Hammar <karl AT aspodata DOT se> wrote:
> > ...
> >> > Why not write it as an engineer/scientist would do it?
> >> > E.g. 10 Hz, 10Hz, 10 1/s, 15 A/V, 25 m/s2, 2e-4mmol, 3 km/ms, 3 V/As ...
> >> >
> >> > It cannot be that hard to parse that, something like:
> >> >
> >> > value : number dimension
> >> > dimension : tdimension | tdimension "/" tdimension
> >> > tdimension : "" | "1" | prefix unit | tdimension sep tdimension |
> >> >              tdimension exponent | "(" tdimension ")" exponent
> >> > sep : " " | "*"

> What if someone actually wants to write km/s as in kilo meters per second?

Yes, I don't see any problem with that. I consists of "km" "/" and "s", 
where "km" consists of the prefix "k" and the unit "m". It is legal 
accordig to the rules-to-be above. What problem do you see with it ?

BTW, it doesn't matter much what you and I thinks about this. The one
who writes the parser usually decides. Are you volunteering?

Regards,
/Karl Hammar

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