lean2/emacs/lean-mode.el

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EmacsLisp
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(require 'generic-x)
(require 'lean-input)
(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()
(set-input-method "Lean")
(set (make-local-variable 'lisp-indent-function)
'common-lisp-indent-function)
))
"A mode for Lean files" ;; doc string for this mode
)
(provide 'lean-mode)
; (regexp-opt '("Int" "Bool" "Nat" "Type" "Real") t)
; (regexp-opt '("let" "in" "have" "calc" "forall" "exists") t)
; (regexp-opt '("=" "->" "≠" "" "∧" "¬" "/\\" "\\/" "+" "-" "*" "/" "<" ">" "≤" "≥" "==" "∀" "∃" "→" "λ" ":") t)