lean2/emacs/lean.el

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EmacsLisp
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(require 'generic-x)
(define-abbrev-table 'lean-mode-abbrev-table '(
;; math/unicode symbols
("forall" "")
("exists" "")
("fun" "λ")
("imp" "")
("and" "")
("or" "")
("not" "¬")
("neq" "")
("geq" "")
("leq" "")
("Nat" "")
("Int" "")
("var" "variable")
("vars" "variables")
("def" "definition")
("th" "theorem")
))
(define-generic-mode
'lean-mode ;; name of the mode to create
'("--") ;; comments start with
'("import" "definition" "variable" "variables" "print" "axiom" "theorem" "universe" "alias" "help" "set::option" "set::opaque" "environment" "options" "infix" "infixl" "infixr" "notation" "eval" "check" "exit" "coercion" "end" "using" "namespace" "builtin" "scope" "pop::scope") ;; some keywords
'(("\\<\\(Bool\\|Int\\|Nat\\|Real\\|Type\\|TypeU\\|\\|\\)\\>" . 'font-lock-type-face)
("\\<\\(calc\\|have\\|in\\|let\\)\\>" . font-lock-keyword-face)
("\"[^\"]*\"" . 'font-lock-string-face)
("\\(->\\|/\\\\\\|==\\|\\\\/\\|[*+/:<=>¬λ→∀∃∧∨≠≤≥-]\\)" . 'font-lock-constant-face))
'("\\.lean$") ;; files for which to activate this mode
'((lambda()
(setq local-abbrev-table lean-mode-abbrev-table)
(abbrev-mode 1)))
"A mode for Lean files" ;; doc string for this mode
)
; (regexp-opt '("Int" "Bool" "Nat" "Type" "Real") t)
; (regexp-opt '("let" "in" "have" "calc" "forall" "exists") t)
; (regexp-opt '("=" "->" "≠" "" "∧" "¬" "/\\" "\\/" "+" "-" "*" "/" "<" ">" "≤" "≥" "==" "∀" "∃" "→" "λ" ":") t)