From mboxrd@z Thu Jan  1 00:00:00 1970
From: Erik Hetzner <egh@e6h.org>
Subject: Re: org-cook
Date: Mon, 17 Mar 2014 07:52:45 -0700
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To: Ken Mankoff <mankoff@gmail.com>
Cc: Xebar Saram <zeltakc@gmail.com>, Fletcher Charest <fletcher.charest@gmail.com>, org mode <emacs-orgmode@gnu.org>, Robert Horn <rjhorn@alum.mit.edu>

At Mon, 17 Mar 2014 10:34:55 -0400,
Ken Mankoff wrote:
> 
> Hi,
> 
> This isn't directly related to Org, but I'll mention it anyway since
> people are discussing quantities and "scale" for their
> recipes. Various programming languages have "physical units" packages
> that can make working with units quite fun. I use the python
> "Quantities" package
> http://pythonhosted.org/quantities/user/tutorial.html . It lets you
> define custom quantities such as how many grams of butter are in a
> stick, etc. A wrapper to this would let you convert Org recipe
> shopping lists from units of "g" and "teaspoon" to units of "sticks"
> and "fluid oz".

Hi Ken,

emacs calc also handles units. For org-cook [1] I extended the
definitions as follows (calc already has definitions for fluid oz):

  (setq math-additional-units
    '((pinch "tsp / 8" "Pinch")
      (drop "tsp / 76" "Drop")
      (dash "drop * 6" "Dash")
      (jigger "floz * 1.5" "Jigger")
      (gill "floz * 4" "Gill")))

best, Erik

1. https://gitorious.org/org-cook/org-cook/

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