On Nov 14, 10:49=A0am, Matthew Moss <(E-Mail Removed)> wrote:

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>

> The three rules of Ruby Quiz 2:

>

> 1. =A0Please do not post any solutions or spoiler discussion for this

> quiz until 48 hours have passed from the time on this message.

>

> 2. =A0Support Ruby Quiz 2 by submitting ideas as often as you can!

> Visit <http://splatbang.com/rubyquiz/>.

>

> 3. =A0Enjoy!

>

> Suggestion: =A0A [QUIZ] in the subject of emails about the problem

> helps everyone on Ruby Talk follow the discussion. =A0Please reply to

> the original quiz message, if you can.

>

> -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=
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>

> ## Unit Conversion (#183)

>

> Google added a calculator to its search engine a while back. Enter =A0

> "convert 50 miles to kilometers", or even just "50 mi to km", and the =A0

> first "search" result will tell you that 50 miles is 80.4672 =A0

> kilometers. This works for units other than length. Try "33 ml to =A0

> gal", "6 hours to minutes", and"50 stones to lbs", and you'll see that =
=A0

> Google's calculator knows a lot of different units and how to convert =A0

> between them all.

>

> Your task is to write a units converter script. The input to the =A0

> script must be three arguments: the quantity, the source units, and =A0

> the destination units. The first example above would be run like this:

>

> =A0 =A0 =A0$ ruby convert.rb 50 miles kilometers

>

> Or, using abbreviations:

>

> =A0 =A0 =A0$ ruby convert.rb 50 mi km

>

> Support as many units and categories of units (i.e. volume, length, =A0

> weight, etc.) as you can, along with appropriate abbreviations for =A0

> each unit.
This will be interesting. I'm not going to endeavor into myself b/c I

help maintain Stick (

http://stick.rubyforge.org) which already does

this (and there's another lib out there that does it too). But it will

be interesting to see how others approach it.

Thanks,

T.