Additional symbols

[mankoff]

I've been working for a few weeks now with the following setup, and for coding python (I use elpy and emacs) and IPython interactive shell in emacs, everything is working great. Perhaps others would like this, or perhaps the kdm-custom list could be broken into superscript, subscript, greek, etc. These sets could be made available even if not turn on (if the categories remain only '(lambda relational logical))

(autoload 'pretty-symbols-mode "pretty-symbols-mode" nil t)
(setq pretty-symbol-categories '(lambda relational logical kdm-custom))
(add-hook 'prog-mode-hook 'pretty-symbols-mode)

(eval-after-load "pretty-symbols-mode"
  '(progn
     ;; superscripts
     (add-to-list 'pretty-symbol-patterns '(?² kdm-custom "\\*\\*2" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?³ kdm-custom "\\*\\*3" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ⁿ kdm-custom "\\*\\*n" (python-mode inferior-python-mode)))
     ;; subscripts
     (add-to-list 'pretty-symbol-patterns '(?๐ kdm-custom "_0\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?₁ kdm-custom "_1\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?₂ kdm-custom "_2\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?₃ kdm-custom "_3\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?₄ kdm-custom "_4\\>" (python-mode inferior-python-mode)))
     ;; (add-to-list 'pretty-symbol-patterns '(?₅ kdm-custom "_5\\>" (python-mode inferior-python-mode)))
     ;; (add-to-list 'pretty-symbol-patterns '(?₆ kdm-custom "_6\\>" (python-mode inferior-python-mode)))
     ;; (add-to-list 'pretty-symbol-patterns '(?₇ kdm-custom "_7\\>" (python-mode inferior-python-mode)))
     ;; (add-to-list 'pretty-symbol-patterns '(?₈ kdm-custom "_8\\>" (python-mode inferior-python-mode)))
     ;; (add-to-list 'pretty-symbol-patterns '(?₉ kdm-custom "_9\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ᵢ kdm-custom "_i\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ⱼ kdm-custom "_j\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ᵣ kdm-custom "_r\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ᵤ kdm-custom "_u\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ᵥ kdm-custom "_v\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ᵪ kdm-custom "_x\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ᵧ kdm-custom "_y\\>" (python-mode inferior-python-mode)))
     ;; python specific
     (add-to-list 'pretty-symbol-patterns '(?⓪ kdm-custom "None" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?∑ kdm-custom "\\<sum\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?∑ kdm-custom "\\<nansum\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?√ kdm-custom "sqrt" (python-mode inferior-python-mode)))
     ;; Greek
     (add-to-list 'pretty-symbol-patterns '(?α kdm-custom "\\<alpha\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Α kdm-custom "\\<Alpha\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?β kdm-custom "\\<beta\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Β kdm-custom "\\<Beta\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?γ kdm-custom "\\<gamma\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Γ kdm-custom "\\<Gamma\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?δ kdm-custom "\\<delta\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Δ kdm-custom "\\<Delta\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ε kdm-custom "\\<epsilon\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Ε kdm-custom "\\<Epsilon\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ζ kdm-custom "\\<zeta\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Ζ kdm-custom "\\<Zeta\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?η kdm-custom "\\<eta\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Η kdm-custom "\\<Eta\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?θ kdm-custom "\\<theta\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Θ kdm-custom "\\<Theta\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ι kdm-custom "\\<iota\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Ι kdm-custom "\\<Iota\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?κ kdm-custom "\\<kappa\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?K kdm-custom "\\<Kappa\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?λ kdm-custom "\\<lambda\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Λ kdm-custom "\\<Lambda\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?μ kdm-custom "\\<mu\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Μ kdm-custom "\\<Mu\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ν kdm-custom "\\<nu\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Ν kdm-custom "\\<Nu\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ν kdm-custom "\\<vega\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ν kdm-custom "\\<Vega\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ξ kdm-custom "\\<xi\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Ξ kdm-custom "\\<Xi\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ο kdm-custom "\\<omicron\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Ο kdm-custom "\\<Omicron\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?π kdm-custom "\\<pi\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Π kdm-custom "\\<pi\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ρ kdm-custom "\\<rho\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Ρ kdm-custom "\\<Rho\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?σ kdm-custom "\\<sigma\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Σ kdm-custom "\\<Sigma\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?τ kdm-custom "\\<tau\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Τ kdm-custom "\\<Tau\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?υ kdm-custom "\\<upsilon\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Y kdm-custom "\\<Upsilon\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?φ kdm-custom "\\<phi\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Φ kdm-custom "\\<Phi\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?χ kdm-custom "\\<chi\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Χ kdm-custom "\\<Chi\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ψ kdm-custom "\\<psi\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Ψ kdm-custom "\\<Psi\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?ω kdm-custom "\\<omega\\>" (python-mode inferior-python-mode)))
     (add-to-list 'pretty-symbol-patterns '(?Ω kdm-custom "\\<Omega\\>" (python-mode inferior-python-mode)))
     ))

[fommil]

@mankoff great stuff! I like the thought of splitting it into three parts. Could you make this available for prettify-symbols? Found myself wanting greek letters today. This is the format we've been using in scala-mode https://github.com/ensime/emacs-scala-mode/blob/master/scala-mode-prettify-symbols.el (but obviously the above is far more generalisable)