Calculations with properties don't seem to compose

[whitequark]

Ex.:

[tiffany352]

It's an issue with the precedence of the of operator. The way it works now, it's reading as (density) of (milk * 10L). I think the only way to fix this is to finally give in and make parsing dependent on the data file, which would allow me to stop parsing of at the first substance. For now, I've found myself writing expressions backwards instead, e.g. 10L * density of milk. Idiomatically, this expression should probably be written mass of 10L milk, which does work.

Edit: I should have mentioned, you can also write (density of milk) * 10L.

[whitequark]

Aside from all above, I think the error message should be fixed also.

[tiffany352]

Yeah, it should indicate that the property exists but is not useful or potentially misleading in context.