# E12 scale

_E12_1=(??)0	-> _E12=${_E12_1:1}
_E12_1=(??)1	-> _E12=${_E12_1:1}0
_E12_1=(?)(?)2	-> _E12=$_E12_1:1.${_E12_1:2}k
_E12_1=(??)3	-> _E12=${_E12_1:1}k
_E12_1=(??)4	-> _E12=${_E12_1:1}0k
_E12_1=(?)(?)5	-> _E12=$_E12_1:1.${_E12_1:2}M
_E12_1=(??)6	-> _E12=${_E12_1:1}M
_E12_1=(??)7	-> _E12=${_E12_1:1}0M
_E12_1=(?)R(?)	-> _E12=$_E12_1:1.$_E12_1:2

# E96 scale

_E12_1=(???)0	-> _E12=${_E12_1:1}
_E12_1=(?)(??)1	-> _E12=$_E12_1:1.${_E12_1:2}k
_E12_1=(??)(?)2	-> _E12=$_E12_1:1.${_E12_1:2}k
_E12_1=(???)3	-> _E12=${_E12_1:1}k
_E12_1=(?)(??)4	-> _E12=$_E12_1:1.${_E12_1:2}M
_E12_1=(??)(?)5	-> _E12=$_E12_1:1.${_E12_1:2}M
_E12_1=(?)R(??)	-> _E12=$_E12_1:1.$_E12_1:2
_E12_1=(??)R(?)	-> _E12=$_E12_1:1.$_E12_1:2

# E12 scale, base multiplier is 10^-12 (pico)

_E12_P=(??)8	-> _E12=${_E12_P:1}0f
_E12_P=(?)(?)9	-> _E12=$_E12_P:1.${_E12_P:2}p
_E12_P=(??)0	-> _E12=${_E12_P:1}p
_E12_P=(??)1	-> _E12=${_E12_P:1}0p
_E12_P=(?)(?)2	-> _E12=$_E12_P:1.${_E12_P:2}n
_E12_P=(??)3	-> _E12=${_E12_P:1}n
_E12_P=(??)4	-> _E12=${_E12_P:1}0n
_E12_P=(?)(?)5	-> _E12=$_E12_P:1.${_E12_P:2}u
_E12_P=(??)6	-> _E12=${_E12_P:1}u
_E12_P=(??)7	-> _E12=${_E12_P:1}0u
_E12_P=(?)R(?)	-> _E12=$_E12_P:1.${_E12_P:2}p	# strange

# remove leading and trailing zeroes

_E12=0([0-9]*)			-> _E12=$_E12:1
_E12=(*.[0-9]*)0([fpnumkM])	-> _E12=$_E12:1$_E12:2
_E12=(*).0([fpnumkM])		-> _E12=$_E12:1$_E12:2
_E12=(*.[0-9]*)0		-> _E12=$_E12:1
_E12=(*).0			-> _E12=$_E12:1