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;; dafny-mode.el - GNU Emacs mode for Dafny
;; Adapted by Rustan Leino from Jean-Christophe FILLIATRE's GNU Emancs mode for Why
(defvar dafny-mode-hook nil)
(defvar dafny-mode-map nil
"Keymap for Dafny major mode")
(if dafny-mode-map nil
(setq dafny-mode-map (make-keymap))
(define-key dafny-mode-map "\C-c\C-c" 'dafny-run-verifier)
(define-key dafny-mode-map [(control return)] 'font-lock-fontify-buffer))
(setq auto-mode-alist
(append
'(("\\.dfy" . dafny-mode))
auto-mode-alist))
;; font-lock
(defun dafny-regexp-opt (l)
(concat "\\_<" (concat (regexp-opt l t) "\\_>")))
(defconst dafny-font-lock-keywords-1
(list
; comments have the form /* ... */
'("/\\*\\([^*]\\|\\*[^/]\\)*\\*/" . font-lock-comment-face)
; or // ...
'("//\\([^
]\\)*" . font-lock-comment-face)
`(,(dafny-regexp-opt '(
"class" "trait" "datatype" "codatatype" "newtype" "type" "iterator"
"function" "predicate" "copredicate" "inductive"
"var" "method" "constructor" "lemma" "colemma"
"ghost" "static" "protected" "abstract"
"module" "import" "default" "as" "opened"
"include"
"extends" "refines" "returns" "yields"
"requires" "ensures" "modifies" "reads" "free" "invariant" "decreases"
)) . font-lock-builtin-face)
`(,(dafny-regexp-opt '(
"assert" "assume" "break" "then" "else" "if" "label" "return" "yield"
"while" "print" "where"
"old" "forall" "exists" "new" "calc" "modify" "in" "this" "fresh"
"match" "case" "false" "true" "null")) . font-lock-keyword-face)
`(,(dafny-regexp-opt '(
"bool" "char" "int" "nat" "real"
"set" "multiset" "seq" "string" "map" "imap"
"object" "array" "array2" "array3")) . font-lock-type-face)
)
"Minimal highlighting for Dafny mode")
(defvar dafny-font-lock-keywords dafny-font-lock-keywords-1
"Default highlighting for Dafny mode")
;; syntax
(defvar dafny-mode-syntax-table nil
"Syntax table for dafny-mode")
(defun dafny-create-syntax-table ()
(if dafny-mode-syntax-table
()
(setq dafny-mode-syntax-table (make-syntax-table))
(set-syntax-table dafny-mode-syntax-table)
(modify-syntax-entry ?' "w" dafny-mode-syntax-table)
(modify-syntax-entry ?_ "w" dafny-mode-syntax-table)))
;; menu
(require 'easymenu)
(defun dafny-menu ()
(easy-menu-define
dafny-mode-menu (list dafny-mode-map)
"Dafny Mode Menu."
'("Dafny"
["Run Dafny" dafny-run-verifier t]
"---"
["Recolor buffer" font-lock-fontify-buffer t]
"---"
))
(easy-menu-add dafny-mode-menu))
;; commands
(defun dafny-command-line (file)
(concat "boogie " file))
(defun dafny-run-verifier ()
"run Dafny verifier"
(interactive)
(let ((f (buffer-name)))
(compile (dafny-command-line f))))
;; setting the mode
(defun dafny-mode ()
"Major mode for editing Dafny programs.
\\{dafny-mode-map}"
(interactive)
(kill-all-local-variables)
(dafny-create-syntax-table)
; hilight
(make-local-variable 'font-lock-defaults)
(setq font-lock-defaults '(dafny-font-lock-keywords))
; indentation
; (make-local-variable 'indent-line-function)
; (setq indent-line-function 'dafny-indent-line)
; menu
; providing the mode
(setq major-mode 'dafny-mode)
(setq mode-name "Dafny")
(use-local-map dafny-mode-map)
(font-lock-mode 1)
(dafny-menu)
(run-hooks 'dafny-mode-hook))
(provide 'dafny-mode)
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