:c1*:kohm::kΩ ; kiloohm
:c1*:okhm::kΩ ; kiloohm
:c1*:mohm::MΩ ; megaohm
:c1*:gohm::GΩ ; gigaohm
:c1*:tohm::TΩ ; teraohm
:*:|ohm::Ω
; :*:ohm::Ω   ; not sure if want
; :*:ohms::Ω  

; micro- prefix using Unicode micro sign (µ), not mu character (μ)
:c*:uA::µA ; microamp
:c*:uF::µF ; microfarad
:c*:uH::µH ; microhenry  - needs to be case sensitive - "uh" is a word
:c*:uV::µV ; microvolt
:c*:uW::µW ; microwatt
:c*:uPa::µPa ; micropascal
:*:|um::µm
::microm::µm ; micrometer or micron
:*:|micron::µm
:*:|us::µs ; microsecond
:*c:uS::µs ; "microsamples per second" doesn't make sense, so this is ok

:c:pf::pF ; picofarad
:c:nf::nF ; nanofarad
; :c:mv::mV ; millivolt - conflicts with bash command
:c:nv::nV ; nanovolt
:*?:degC::°C ; degrees Celsius
:*?:degF::°F ; degrees Fahrenheit
:*?:|deg::° ; degree symbol
:*:rthz::√Hz ; square root of hertz
:r:thdn::THD+N ; total harmonic distortion and noise
::|diam::⌀ ; diameter symbol - alternately could be "Latin small letter o with stroke" (ø) if no font support

; add Unicode non-breaking spaces before units?  or is that too pedantic?

;------------------------------------------------------------------------------
; Math
;------------------------------------------------------------------------------
:?*:+-::±		; plus-or-minus sign
:?:|-::−		; true minus sign
:?:|minus::−	; true minus sign
:?:|x::×		; true times sign
:?:|times::×
:?:|*::⋅		; "dot operator" (⋅), for multiplication, dot product
:?:|.::·		; "middle dot" (·), for interword separation, punctuation, ???

; middot · U+00B7 HTMLlat1   middle dot (= Georgian comma = Greek middle dot)
; sdot   ⋅ U+22C5 HTMLsymbol dot operator ('dot operator' is NOT the same character as U+00B7 'middle dot'.)

::divby::÷  ; division sign or obelus
::./.::÷    ; any conflicts?

::|>=::≥   ; '>=' conflicts with usage in programming.  Alternatively, it could specify different rules for code windows.
::|<=::≤
::|!=::≠ ; not equal to
::|>>::≫ ; much greater than
::|<<::≪ ; much less than
::|!=::≠
::notequal::≠
::approx::≈ ; approximately equal to
::asymp::≈
::|~::≈
::propto::∝ ; proportional to

; superscripts and subscripts from HTML entity names sup2 and sup3
; km² is simple and easy.  CuSO₄·5H₂O or ²³⁸U are hard to type
; Alternate maybe better notation: x^2 → x², x_2 → x₂  
; Of course, that would conflict with programming
; There's also ⁱ⁺⁻⁼⁽⁾ⁿ ₊₋₌₍₎ₐₑₒₓₔ which could be added
:?:sup0::⁰
:?:sup1::¹
:?:sup2::² ; common
:?:sup3::³ ; common
:?:sup4::⁴
:?:sup5::⁵
:?:sup6::⁶
:?:sup7::⁷
:?:sup8::⁸
:?:sup9::⁹

:?:sub0::₀
:?:sub1::₁
:?:sub2::₂
:?:sub3::₃
:?:sub4::₄
:?:sub5::₅
:?:sub6::₆
:?:sub7::₇
:?:sub8::₈
:?:sub9::₉

::|sqrt::√ ; square root
::radic::√
::|inf::∞

; Greek characters for math, etc.
:C:|Alpha::Α
:C:|Beta::Β
:C:|Gamma::Γ
:C:|Delta::Δ
:C:|Epsilon::Ε
:C:|Zeta::Ζ
:C:|Eta::Η
:C:|Theta::Θ
:C:|Iota::Ι
:C:|Kappa::Κ
:C:|Lambda::Λ
:C:|Mu::Μ
:C:|Nu::Ν
:C:|Xi::Ξ
:C:|Omicron::Ο
:C:|Pi::Π
:C:|Rho::Ρ
:C:|Sigma::Σ
:C:|Tau::Τ
:C:|Upsilon::Υ
:C:|Phi::Φ
:C:|Chi::Χ
:C:|Psi::Ψ
:C*:|Omega::Ω
:C:|alpha::α
:C:|beta::β
:C:|gamma::γ
:C:|delta::δ
:C:|epsilon::ε
:C:|zeta::ζ
:C:|eta::η
:C:|theta::θ
:C:|iota::ι
:C:|kappa::κ
:C:|lambda::λ
:C:|mu::μ
:C:|nu::ν
:C:|xi::ξ
:C:|omicron::ο
:C?:|pi::π
:C:|rho::ρ
:C:|sigmaf::ς
:C:|sigma::σ
:C:|tau::τ
:C:|upsilon::υ
:C:|phi::φ
:C:|chi::χ
:C:|psi::ψ
:C*:|omega::ω
:C*:|thetasym::ϑ
:C:|upsih::ϒ
:C:|piv::ϖ

;------------------------------------------------------------------------------
; Typography / symbols
;------------------------------------------------------------------------------
::|c::©   ; copyright symbol
::(c)::©
::|r::®   ; registered symbol
::(r)::®
::|s::§   ; section symbol
::(tm)::™ ; trademark symbol
; ::qtr::¼
; ::hlf::½
; ::tqtr::¾

::|o::• 	; bullet
::|bull::•
::|bullet::•
;::|--::–  	; en dash – these don't work due to minus sign. needs to ignore dashes as closing characters for just these.
::|en::–
;::|---::— 	; em dash —
::|em::—
; ¦ ; broken bar
:?*:|cent::¢ ; cents symbol

; Arrows
:?*:-->::→
:?*:==>::⇒
:?*:<--::←
:?*:<==::⇐
:?*:<->::↔
:?*:<=>::⇔
::|^::↑
::|v::↓

; Special characters
;:r:|nbsp:: ; Doesn't work?

;------------------------------------------------------------------------------
; Emoticons
;------------------------------------------------------------------------------
::0_0::ಠ_ಠ ; look of disapproval
::|<3::♥
::(:))::☺
::|:)::☺
::(:()::☹
::|:(::☹
::|snowman::☃
::|skull::☠
::|music::♪♫

;------------------------------------------------------------------------------
; HTML shortcuts
;------------------------------------------------------------------------------
:*b0:|bq::{bs 3}<blockquote></blockquote>{left 13}
; :*:|bq::<blockquote>
:*:|/bq::</blockquote>
:*:|\bq::</blockquote>

:*b0:|qu::{bs 3}[QUOTE][/QUOTE]{left 8}
:*:|/qu::[/QUOTE]
:*:|\qu::[/QUOTE]

:*b0:<em>::</em>{left 5}