[uf-discuss] Re: Currency + Unit of measurement
gl at brixlogic.com
Fri Sep 29 15:38:41 PDT 2006
One little correction in the text below.
The following rules should be used:
* "unit" is optional
* if "unit" is present, then "value" is optional, and if "value" not
present, then it is assumed to be 1.
Guillaume Lebleu wrote:
> I don't think Lorenzo is talking of: *currency amount per
> item/product* as your title and example imply (that, I agree, is a
> but of *currency amount per unit of measurement* (which is widely used
> - see for instance: http://www.bloomberg.com/energy/, although not in
> the context of a house/product/job in which case the unit is obvious).
> In "$25 per barrel" or in "25 ($/bbl)", I think you would agree that
> knowing that the barrel is the unit of measurement is very
> significant, and even though knowing that "$" means USD dollars,
> overlooking that it is a price per barrel would lead to a big mistake.
> I think Lorenzo is furthermore suggesting that a currency is just
> another unit. I agree conceptually that it is, but in practice,
> standard bodies (that I know of) have traditionally separated currency
> amounts from other measures. For instance, I took a look at the UNECE
> recommended codes for units of measurement (reused by some industry
> standards), available at:
> http://www.unece.org/cefact/recommendations/rec20/rec20.zip. They
> indeed have the barrel (US) as a well-known unit, but as I mentioned
> UNECE does not include currencies in their list of units of measurement.
> Which leads me to my updated code examples.
> <span class="price"><abbr class="currency" title="USD">$</abbv><span
> class="value">25</span> <span class="unit" title="BLL">per
> <span class="price"><span class="value">25</span> <abbr
> class="currency" title="USD">$</abbv><abbr class="unit"
> <span class="price">On <abbr class="datetime"
> title="1998-03-12T08:30:00-05:00">August 1</abbr>, the US Dollar still
> stood at <span class="value">643 <abbr class="currency"
> title="DEM">Marks</abbr></span> to the <span class="unit currency"
> The following rules should be used:
> * If "value" is not present, then value = 1.
> * "unit" is optional
> By the way, I haven't found any measurement microformat on the wiki,
> so maybe we could do the currency+measurement at the same time.
> Let me know what you think.
> microformats-discuss mailing list
> microformats-discuss at microformats.org
More information about the microformats-discuss