Module:Val/units

Documentation for this module may be created at Module:Val/units/doc

local units_tbl = {
	-- No space before unit
	arcminute = { abbr='′', link='minute of arc', nospace=true },
	arcmin = { abbr='′', link='minute of arc', nospace=true },
	["'"] = { abbr='′', link='minute of arc', nospace=true },
	['′'] = { abbr='′', link='minute of arc', nospace=true },
	arcsecond = { abbr='″', link='second of arc', nospace=true },
	arcsec = { abbr='″', link='second of arc', nospace=true },
	['"'] = { abbr='″', link='second of arc', nospace=true },
	['″'] = { abbr='″', link='second of arc', nospace=true },
	['deg'] = { abbr='°', link='degree (angle)', nospace=true },
	['°'] = { abbr='°', link='degree (angle)', nospace=true },
	percent = { abbr='%', link='percent', nospace=true },
	['per cent'] = { abbr='%', link='percent', nospace=true },
	['%'] = { abbr='%', link='percent', nospace=true },
	permil = { abbr='‰', link='per mil', nospace=true },
	permill = { abbr='‰', link='per mil', nospace=true },
	permille = { abbr='‰', link='per mil', nospace=true },
	['per mil'] = { abbr='‰', link='per mil', nospace=true },
	['per mill'] = { abbr='‰', link='per mil', nospace=true },
	['per mille'] = { abbr='‰', link='per mil', nospace=true },
	['‰'] = { abbr='‰', link='per mil', nospace=true },
	-- Space before unit
	A = { abbr='A', link='ampere' },
	aA = { abbr='aA', link='attoampere' },
	AD = { abbr='AD', link='Anno Domini' },
	aG = { abbr='aG', link='attogauss' },
	ag = { abbr='ag', link='attogram' },
	aHz = { abbr='aHz', link='attohertz' },
	aK = { abbr='aK', link='attokelvin' },
	am = { abbr='am', link='attometre' },
	aT = { abbr='aT', link='attotesla' },
	BC = { abbr='BC', link='Before Christ' },
	BCE = { abbr='BCE', link='Before the Common Era' },
	['bit/s'] = { abbr='bit/s', link='bit per second' },
	bps = { abbr='bit/s', link='bit per second' },
	BP = { abbr='BP', link='Before present' },
	bya = { abbr='bya', link='billion years ago' },
	byr = { abbr='byr', link='billion years' },
	C = { abbr='C', link='coulomb' },
	c = { abbr='<i>c</i>', link='speed of light' },
	cA = { abbr='cA', link='centiampere' },
	CE = { abbr='CE', link='Common Era' },
	cG = { abbr='cG', link='centigauss' },
	cg = { abbr='cg', link='centigram' },
	cHz = { abbr='cHz', link='centihertz' },
	cK = { abbr='cK', link='centikelvin' },
	['cm-1'] = { abbr='cm<sup>&minus;1</sup>', link='wavenumber' },
	cT = { abbr='cT', link='centitesla' },
	cV = { abbr='cV', link='volt' },
	dA = { abbr='dA', link='ampere' },
	daA = { abbr='daA', link='decaampere' },
	daG = { abbr='daG', link='decagauss' },
	dag = { abbr='dag', link='decagram' },
	daHz = { abbr='daHz', link='decahertz' },
	daK = { abbr='daK', link='decakelvin' },
	daT = { abbr='daT', link='decatesla' },
	daV = { abbr='daV', link='volt' },
	degC = { abbr='°C', link='degree Celsius' },
	degF = { abbr='°F', link='Fahrenheit' },
	degR = { abbr='°R', link='Rankine scale' },
	dG = { abbr='dG', link='decigauss' },
	dg = { abbr='dg', link='decigram' },
	dHz = { abbr='dHz', link='hertz' },
	dK = { abbr='dK', link='decikelvin' },
	dT = { abbr='dT', link='decitesla' },
	dV = { abbr='dV', link='volt' },
	EA = { abbr='EA', link='ampere' },
	['Earth mass'] = { abbr='<i>M</i><sub>⊕</sub>', link='Earth mass' },
	['Earth radius'] = { abbr='<i>R</i><sub>⊕</sub>', link='Earth radius' },
	EG = { abbr='EG', link='exagauss' },
	Eg = { abbr='Eg', link='exagram' },
	EHz = { abbr='EHz', link='exahertz' },
	EK = { abbr='EK', link='exakelvin' },
	ET = { abbr='ET', link='exatesla' },
	EV = { abbr='EV', link='volt' },
	['eV/c2'] = { abbr='eV/<i>c</i><sup>2</sup>', link='electronvolt#Mass' },
	F = { abbr='F', link='farad' },
	fA = { abbr='fA', link='femtoampere' },
	['fb-1'] = { abbr='fb<sup>&minus;1</sup>', link='Barn (unit)' },
	fG = { abbr='fG', link='femtogauss' },
	fg = { abbr='fg', link='femtogram' },
	fHz = { abbr='fHz', link='femtohertz' },
	fK = { abbr='fK', link='femtokelvin' },
	fT = { abbr='fT', link='femtotesla' },
	fV = { abbr='fV', link='femtovolt' },
	gal = { abbr='gal', link='gallon' },
	['g/cm3'] = { abbr='g/cm<sup>3</sup>', link='gram per cubic centimetre' },
	['g/l'] = { abbr='g/l', link='gram per litre' },
	['g/L'] = { abbr='g/L', link='gram per litre' },
	['g*mol-1'] = { abbr='g&sdot;mol<sup>&minus;1</sup>', link='molar mass' },
	['g/mol'] = { abbr='g&sdot;mol<sup>&minus;1</sup>', link='molar mass' },
	GA = { abbr='GA', link='gigaampere' },
	Ga = { abbr='Ga', link='gigaannum' },
	['Gbit/s'] = { abbr='Gbit/s', link='gigabit per second' },
	['GeV/c2'] = { abbr='GeV/<i>c</i><sup>2</sup>', link='electronvolt#Mass' },
	GG = { abbr='GG', link='gigagauss' },
	Gg = { abbr='Gg', link='gigagram' },
	GHz = { abbr='GHz', link='gigahertz' },
	['GJ*mol-1'] = { abbr='GJ&sdot;mol<sup>&minus;1</sup>', link='joule per mole' },
	['GJ/mol'] = { abbr='GJ/mol', link='joule per mole' },
	GK = { abbr='GK', link='gigakelvin' },
	GPa = { abbr='GPa', link='gigapascal' },
	Gpc = { abbr='Gpc', link='megaparsec#Megaparsecs_and_gigaparsecs' },
	['Gpc2'] = { abbr='Gpc<sup>2</sup>', link='megaparsec#Megaparsecs_and_gigaparsecs' },
	['Gpc3'] = { abbr='Gpc<sup>3</sup>', link='megaparsec#Megaparsecs_and_gigaparsecs' },
	GT = { abbr='GT', link='gigatesla' },
	GV = { abbr='GV', link='gigavolt' },
	Gyr = { abbr='Ga', link='gigaannum' },
	H = { abbr='H', link='Henry (unit)' },
	['H*m-1'] = { abbr='H', link='Henry (unit)' },
	hA = { abbr='hA', link='hectoampere' },
	hG = { abbr='hG', link='hectogauss' },
	hg = { abbr='hg', link='hectogram' },
	hHz = { abbr='hHz', link='hectohertz' },
	hK = { abbr='hK', link='hectokelvin' },
	hT = { abbr='hT', link='hectotesla' },
	hV = { abbr='hV', link='volt' },
	Hz = { abbr='Hz', link='hertz' },
	['Jupiter mass'] = { abbr='<i>M</i><sub>J</sub>', link='Jupiter mass' },
	['Jupiter radius'] = { abbr='<i>R</i><sub>J</sub>', link='Jupiter radius' },
	['J/kg'] = { abbr='J/kg', link='joule' },
	['J*mol-1'] = { abbr='J&sdot;mol<sup>&minus;1</sup>', link='joule per mole' },
	['J/mol'] = { abbr='J/mol', link='joule per mole' },
	Js = { abbr='J&sdot;s', link='joule-second' },
	['J*s'] = { abbr='J&sdot;s', link='joule-second' },
	kA = { abbr='kA', link='kiloampere' },
	ka = { abbr='ka', link='kiloannum' },
	['kbit/s'] = { abbr='kbit/s', link='kilobit per second' },
	['keV/c2'] = { abbr='keV/<i>c</i><sup>2</sup>', link='electronvolt#Mass' },
	kG = { abbr='kG', link='kilogauss' },
	['kg/cm3'] = { abbr='kg/cm<sup>3</sup>', link='density#Formula_and_common_units' },
	['kg/m3'] = { abbr='kg/m<sup>3</sup>', link='kilogram per cubic metre' },
	['kg/mol'] = { abbr='kg&sdot;mol<sup>&minus;1</sup>', link='molar mass' },
	kHz = { abbr='kHz', link='Kilohertz' },
	kpc = { abbr='kpc', link='kiloparsec' },
	['kpc2'] = { abbr='kpc<sup>2</sup>', link='kiloparsec' },
	['kpc3'] = { abbr='kpc<sup>3</sup>', link='kiloparsec' },
	['kJ*mol-1'] = { abbr='kJ&sdot;mol<sup>&minus;1</sup>', link='joule per mole' },
	['kJ/mol'] = { abbr='kJ/mol', link='joule per mole' },
	kK = { abbr='kK', link='kilokelvin' },
	KPa = { abbr='kPa', link='pascal (unit)' },
	kT = { abbr='kT', link='kilotesla' },
	kV = { abbr='kV', link='kilovolt' },
	['kW·h'] = { abbr='kW&sdot;h', link='kilowatt hour' },
	['kW.h'] = { abbr='kW&sdot;h', link='kilowatt hour' },
	kWh = { abbr='kWh', link='kilowatt hour' },
	kya = { abbr='kya', link='kyr' },
	kyr = { abbr='kyr', link='kyr' },
	lbf = { abbr='{{lbf}}', link='Pound (force)' },
	lbm = { abbr='{{lbm}}', link='Pound (mass)' },
	ly = { abbr='ly', link='light-year' },
	['L_solar'] = { abbr='<i>L</i><sub>&#x2609;</sub>', link='solar luminosity' },
	['m-3'] = { abbr='m<sup>&minus;3</sup>', link='cubic metre' },
	['m-2'] = { abbr='m<sup>&minus;2</sup>', link='square metre' },
	['m-1'] = { abbr='m<sup>&minus;1</sup>', link='metre' },
	m = { abbr='m', link='metre' },
	['m2'] = { abbr='m<sup>2</sup>', link='Square metre' },
	['m3'] = { abbr='m<sup>3</sup>', link='Cubic metre' },
	metre = { abbr='m', link='metre' },
	meter = { abbr='m', link='metre' },
	['m*s-1'] = { abbr='m&sdot;s<sup>&minus;1</sup>', link='metre per second' },
	['m*s-2'] = { abbr='m&sdot;s<sup>&minus;2</sup>', link='metre per second squared' },
	['M_Earth'] = { abbr='<i>M</i><sub>⊕</sub>', link='Earth mass' },
	['M_Jupiter'] = { abbr='<i>M</i><sub>J</sub>', link='Jupiter mass' },
	['M_Solar'] = { abbr='<i>M</i><sub>&#x2609;</sub>', link='solar mass' },
	['M_solar'] = { abbr='<i>M</i><sub>&#x2609;</sub>', link='solar mass' },
	mA = { abbr='mA', link='milliampere' },
	MA = { abbr='MA', link='megaampere' },
	Ma = { abbr='Ma', link='megaannum' },
	['Mbit/s'] = { abbr='Mbit/s', link='megabit per second' },
	mcg = { abbr='µg', link='microgram' },
	['mcg/dL'] = { abbr='µg/dL', link='gram per' },
	['mcg/dl'] = { abbr='µg/dl', link='gram per' },
	['MeV/c2'] = { abbr='MeV/<i>c</i><sup>2</sup>', link='electronvolt#Mass' },
	MG = { abbr='MG', link='megagauss' },
	Mg = { abbr='Mg', link='megagram' },
	mG = { abbr='mG', link='milligauss' },
	['mg/mL'] = { abbr='mg/mL', link='gram per litre' },
	['mg/ml'] = { abbr='mg/mL', link='gram per litre' },
	MHz = { abbr='MHz', link='megahertz' },
	mHz = { abbr='mHz', link='hertz' },
	['MJ*mol-1'] = { abbr='MJ&sdot;mol<sup>&minus;1</sup>', link='joule per mole' },
	['MJ/mol'] = { abbr='MJ/mol', link='joule per mole' },
	MK = { abbr='MK', link='megakelvin' },
	mK = { abbr='mK', link='millikelvin' },
	Mpc = { abbr='Mpc', link='parsec#Megaparsecs_and_gigaparsecs' },
	['Mpc2'] = { abbr='Mpc<sup>2</sup>', link='parsec#Megaparsecs_and_gigaparsecs' },
	['Mpc3'] = { abbr='Mpc<sup>3</sup>', link='parsec#Megaparsecs_and_gigaparsecs' },
	mpgimp = { abbr='mpg', link='Fuel economy in automobiles#Units_of_measure', imperial = true },
	MT = { abbr='MT', link='megatesla' },
	mT = { abbr='mT', link='millitesla' },
	muA = { abbr='µA', link='ampere' },
	muG = { abbr='µG', link='microgauss' },
	mug = { abbr='µg', link='microgram' },
	muGal = { abbr='µGal', link='Gal (unit)' },
	muHz = { abbr='µHz', link='hertz' },
	muJ = { abbr='µJ', link='joule' },
	muK = { abbr='µK', link='microkelvin' },
	mum = { abbr='µm', link='micrometre' },
	mus = { abbr='µs', link='microsecond' },
	muT = { abbr='µT', link='microtesla' },
	muV = { abbr='µV', link='volt' },
	MV = { abbr='MV', link='volt' },
	mV = { abbr='mV', link='volt' },
	mya = { abbr='mya', link='million years ago' },
	myr = { abbr='myr', link='million years' },
	nA = { abbr='nA', link='ampere' },
	['N*A-2'] = { abbr='N&sdot;A<sup>&minus;2</sup>', link='permeability (electromagnetism)' },
	nG = { abbr='nG', link='nanogauss' },
	ng = { abbr='ng', link='nanogram' },
	nHz = { abbr='nHz', link='hertz' },
	nK = { abbr='nK', link='nanokelvin' },
	['N*m-1'] = { abbr='N&sdot;m<sup>&minus;1</sup>', link='joule (unit)' },
	nT = { abbr='nT', link='nanotesla' },
	nV = { abbr='nV', link='volt' },
	PA = { abbr='PA', link='ampere' },
	pA = { abbr='pA', link='ampere' },
	['pc2'] = { abbr='pc<sup>2</sup>', link='Parsec' },
	['pc3'] = { abbr='pc<sup>3</sup>', link='Parsec' },
	PG = { abbr='PG', link='petagauss' },
	Pg = { abbr='Pg', link='petagram' },
	pG = { abbr='pG', link='picogauss' },
	pg = { abbr='pg', link='picogram' },
	PHz = { abbr='PHz', link='petahertz' },
	pHz = { abbr='pHz', link='hertz' },
	PK = { abbr='PK', link='petakelvin' },
	pK = { abbr='pK', link='picokelvin' },
	ppb = { abbr='ppb', link='parts per billion' },
	ppm = { abbr='ppm', link='parts per million' },
	PT = { abbr='PT', link='petatesla' },
	pT = { abbr='pT', link='picotesla' },
	PV = { abbr='PV', link='volt' },
	pV = { abbr='pV', link='volt' },
	R = { abbr='R', link='rayleigh (unit)' },
	['R_Earth'] = { abbr='<i>R</i><sub>⊕</sub>', link='Earth radius' },
	['R_Jupiter'] = { abbr='<i>R</i><sub>J</sub>', link='Jupiter radius' },
	['R_Solar'] = { abbr='<i>R</i><sub>&#x2609;</sub>', link='solar radius' },
	['R_solar'] = { abbr='<i>R</i><sub>&#x2609;</sub>', link='solar radius' },
	s = { abbr='s', link='second' },
	['s-1'] = { abbr='s<sup>&minus;1</sup>', link='second' },
	['s-2'] = { abbr='s<sup>&minus;2</sup>', link='second' },
	['s2'] = { abbr='s<sup>2</sup>', link='second' },
	['Solar luminosity'] = { abbr='<i>L</i><sub>&#x2609;</sub>', link='solar luminosity' },
	['solar luminosity'] = { abbr='<i>L</i><sub>&#x2609;</sub>', link='solar luminosity' },
	['Solar mass'] = { abbr='<i>M</i><sub>&#x2609;</sub>', link='solar mass' },
	['solar mass'] = { abbr='<i>M</i><sub>&#x2609;</sub>', link='solar mass' },
	['Solar radius'] = { abbr='<i>R</i><sub>&#x2609;</sub>', link='solar radius' },
	['solar radius'] = { abbr='<i>R</i><sub>&#x2609;</sub>', link='solar radius' },
	TA = { abbr='TA', link='ampere' },
	['Tbit/s'] = { abbr='Tbit/s', link='terabit per second' },
	['TeV/c2'] = { abbr='TeV/<i>c</i><sup>2</sup>', link='electronvolt#Mass' },
	TG = { abbr='TG', link='teragauss' },
	Tg = { abbr='Tg', link='teragram' },
	THz = { abbr='THz', link='terahertz' },
	['TJ*mol-1'] = { abbr='TJ&sdot;mol<sup>&minus;1</sup>', link='joule per mole' },
	['TJ/mol'] = { abbr='TJ/mol', link='joule per mole' },
	TK = { abbr='TK', link='terakelvin' },
	Torr = { abbr='Torr', link='Torr' },
	torr = { abbr='Torr', link='Torr' },
	TT = { abbr='TT', link='teratesla' },
	TV = { abbr='TV', link='volt' },
	u = { abbr='u', link='atomic mass unit' },
	uBP = { abbr='<sup>14</sup>C yr BP', link='Radiocarbon dating#Calibration' },
	USgal = { abbr='US gal', link='US gallon' },
	V = { abbr='V', link='volt' },
	VV = { abbr='VV', link='volt' },
	['V/m'] = { abbr='V/m', link='electric field' },
	['Vm-1'] = { abbr='V&sdot;m<sup>&minus;1</sup>', link='electric field' },
	['V*m-1'] = { abbr='V&sdot;m<sup>&minus;1</sup>', link='electric field' },
	Wb = { abbr='Wb', link='Weber (unit)' },
	y = { abbr='y', link='year' },
	yA = { abbr='yA', link='ampere' },
	YA = { abbr='YA', link='ampere' },
	year = { abbr='year', link='year' },
	years = { abbr='years', link='year' },
	YG = { abbr='YG', link='yottagauss' },
	Yg = { abbr='Yg', link='yottagram' },
	yG = { abbr='yG', link='yoctogauss' },
	yg = { abbr='yg', link='yoctogram' },
	YHz = { abbr='YHz', link='yottahertz' },
	yHz = { abbr='yHz', link='hertz' },
	YK = { abbr='YK', link='yottakelvin' },
	yK = { abbr='yK', link='yoctokelvin' },
	ym = { abbr='ym', link='yoctometre' },
	yr = { abbr='yr', link='year#Symbols_y_and_yr' },
	YT = { abbr='YT', link='Yottatesla' },
	yT = { abbr='yT', link='yoctotesla' },
	YV = { abbr='YV', link='volt' },
	yV = { abbr='yV', link='volt' },
	ZA = { abbr='ZA', link='ampere' },
	zA = { abbr='zA', link='ampere' },
	ZG = { abbr='ZG', link='zettagauss' },
	Zg = { abbr='Zg', link='zettagram' },
	zG = { abbr='zG', link='zeptogauss' },
	zg = { abbr='zg', link='zeptogram' },
	ZHz = { abbr='ZHz', link='hertz' },
	zHz = { abbr='zHz', link='hertz' },
	ZK = { abbr='ZK', link='zettakelvin' },
	zK = { abbr='zK', link='zeptokelvin' },
	zm = { abbr='zm', link='zeptometre' },
	ZT = { abbr='ZT', link='zettatesla' },
	zT = { abbr='zT', link='zeptotesla' },
	ZV = { abbr='ZV', link='volt' },
	zV = { abbr='zV', link='volt' },
	['µA'] = { abbr='µA', link='microampere' },
	['µB'] = { abbr='µ<sub>B</sub>', link='Bohr magneton' },
	['µG'] = { abbr='µG', link='microgauss' },
	['µGal'] = { abbr='µGal', link='Gal (unit)' },
	['μg/dl'] = { abbr='μg/dL', link='gram per litre' },
	['μg/dL'] = { abbr='μg/dL', link='gram per litre' },
	['µHz'] = { abbr='µHz', link='hertz' },
	['µK'] = { abbr='µK', link='microkelvin' },
	['µN'] = { abbr='µ<sub>N</sub>', link='nuclear magneton' },
	['μN'] = { abbr='µ<sub>N</sub>', link='nuclear magneton' },
	['µT'] = { abbr='µT', link='microtesla' },
	['µV'] = { abbr='µV', link='microvolt' }
}

return function (u, tbl)
	if not tbl then
		tbl = {}
	end
	local per = tbl.per
	local link = tbl.link
	local perl = tbl.per_link
	local unit = units_tbl[u] or {abbr = u, link = u}
	local imperial = unit.imperial and '<sub>-[[Imperial unit|imp]]</sub>'
	local nospace = not unit.nospace
	if link then
		unit = '[['..unit.link..'|'..unit.abbr..']]'
	else
		unit = unit.abbr
	end
	if per then
		-- Look for "*" "." or "/"
		-- If found, add parentheses
		if u:find('[%*%.%/]') then
			unit = '('..unit..')'
		end
		local per_u = units_tbl[per] or {abbr = per, link=per}
		if perl then
			per_u = '[['..per_u..'|'..per_u.abbr..']]'
		else
			per_u = per_u.abbr
		end
		-- Look for "*" "." or "/"
		-- If found, add parentheses
		if per:find('[%*%.%/]') then
			per_u = '('..per_u..')'
		end
		unit = unit..'/'..per_u
	end
	if imperial then
		unit = unit..imperial
	end
	if nospace then
		unit = '&nbsp;'..unit
	end
	return unit
end