Unit descriptions are not always consistent

In GitLab by @je-cook on Mar 9, 2022, 15:32

Summary

Units would benefit from be easily parsible from the dictionary definitions and most things should have a unit even if it is dimensionless

Suggested layout

• All units should be encapsulated in square brackets to aide parsing out of the description and not used elsewhere in description
• powers should be signified by a carat '^'
• No prefixes in units eg 1200MW -> GW and change the values of the variables accordingly
• should be parsible by pint (currency units are not so straight forward)
  • import pint; pint.Unit("W")
• ratio/fractions or other dimensionless units should be '[-]'
• \m3 -> m^-3
• Temperature should be ["degC"] or ["K"] or similar not C -> coulomb
• m^(-2).^(-1) (what...? isnt this just m^2)
• time 'y' is not a parsible unit 'yr' is
• Multiplicative (eg ohm.m) can be specified either with a dot between or without but no hypens

Some discussion is probably required for some units eg coil, neutrons (there is a particle unit that could be used)

Attached is the parsed state I have currently I've split it into a couple of sections which hopefully should make it easier to go through
each line is:

the string that is parsed - errors produced (if any, some are false positives or I dealt with) - regex search - pint unit - string to be replaced

process_units.md

Start with the attached process_units.md, reviewing each listed string, parse result, regex, Pint unit, and replacement. Use the suggested square-bracket, exponent, prefix, dimensionless, temperature, time, and multiplicative-unit rules as completion criteria, while resolving the noted coil and neutron cases through discussion.