Emacs: Replace Greek Letter Names to Unicode

Here's a command to convert Greek to unicode symbols.

(require 'xah-replace-pairs)

(defun xah-replace-greek-letter-name-to-symbol (@begin @end)
  "Replace alpha to α, beta to β etc in current line or selection.

URL `http://xahlee.info/emacs/emacs/elisp_replace_greeks_to_symbols.html'
Version 2016-10-05"
  (interactive
   (if (use-region-p)
       (list (region-beginning) (region-end))
     (list (line-beginning-position) (line-end-position))))
  (let ((case-fold-search nil))
    (xah-replace-pairs-region
     @begin
     @end
     '(
       ["Alpha" "Α"]
       ["Beta" "Β"]
       ["Gamma" "Γ"]
       ["Delta" "Δ"]
       ["Epsilon" "Ε"]
       ["Zeta" "Ζ"]
       ["Eta" "Η"]
       ["Theta" "Θ"]
       ["Iota" "Ι"]
       ["Kappa" "Κ"]
       ["Lambda" "Λ"]
       ["Mu" "Μ"]
       ["Nu" "Ν"]
       ["Xi" "Ξ"]
       ["Omicron" "Ο"]
       ["Pi" "Π"]
       ["Rho" "Ρ"]
       ["Sigma" "Σ"]
       ["Tau" "Τ"]
       ["Upsilon" "Υ"]
       ["Phi" "Φ"]
       ["Chi" "Χ"]
       ["Psi" "Ψ"]
       ["Omega" "Ω"]

       ["alpha" "α"]
       ["beta" "β"]
       ["gamma" "γ"]
       ["delta" "δ"]
       ["epsilon" "ε"]
       ["zeta" "ζ"]
       ["eta" "η"]
       ["theta" "θ"]
       ["iota" "ι"]
       ["kappa" "κ"]
       ["lambda" "λ"]
       ["mu" "μ"]
       ["nu" "ν"]
       ["xi" "ξ"]
       ["omicron" "ο"]
       ["pi" "π"]
       ["rho" "ρ"]
       ["sigmaf" "ς"]
       ["sigma" "σ"]
       ["tau" "τ"]
       ["upsilon" "υ"]
       ["phi" "φ"]
       ["chi" "χ"]
       ["psi" "ψ"]
       ["omega" "ω"]
       ["thetasym" "ϑ"]
       ["upsih" "ϒ"]
       ["piv" "ϖ"]
       ) 'REPORT 'HILIGHT )))

You need the elisp library Emacs: Xah Replace Pairs, xah-replace-pairs.el.

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