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;;; sail-mode.el --- Major mode for editing .sail files -*- lexical-binding: t; -*-
;; Copyright (C) 2013-2018 The Sail Authors
;;
;; Author: The Sail Authors
;; URL: http://github.com/rems-project/sail
;; Package-Requires: ((emacs "25"))
;; Version: 0.0.1
;; Keywords: language
;; This file is not part of GNU Emacs.
;;; License:
;; 2-Clause BSD License (See LICENSE file in Sail repository)
;;; Commentary:
;; This mode is only compatible with new, recent of the new Sail on the "sail2" branch.
;;; Code:
(defvar sail2-mode-hook nil)
(add-to-list 'auto-mode-alist '("\\.sail\\'" . sail2-mode))
(defconst sail2-keywords
'("val" "function" "type" "struct" "union" "enum" "let" "var" "if" "then" "by"
"else" "match" "in" "return" "register" "ref" "forall" "operator" "effect"
"overload" "cast" "sizeof" "constant" "constraint" "default" "assert" "newtype" "from"
"pure" "infixl" "infixr" "infix" "scattered" "end" "try" "catch" "and" "to"
"throw" "clause" "as" "repeat" "until" "while" "do" "foreach" "bitfield"
"mapping" "where" "with"))
(defconst sail2-kinds
'("Int" "Type" "Order" "Bool" "inc" "dec"
"barr" "depend" "rreg" "wreg" "rmem" "rmemt" "wmv" "wmvt" "eamem" "wmem"
"exmem" "undef" "unspec" "nondet" "escape" "configuration"))
(defconst sail2-types
'("vector" "int" "nat" "atom" "range" "unit" "bit" "real" "list" "bool" "string" "bits" "option"
"uint64_t" "int64_t" "bv_t" "mpz_t"))
(defconst sail2-special
'("_prove" "_not_prove" "create" "kill" "convert" "undefined"
"$define" "$include" "$ifdef" "$ifndef" "$else" "$endif" "$option" "$optimize" "$latex"))
(defconst sail2-font-lock-keywords
`((,(regexp-opt sail2-keywords 'symbols) . font-lock-keyword-face)
(,(regexp-opt sail2-kinds 'symbols) . font-lock-builtin-face)
(,(regexp-opt sail2-types 'symbols) . font-lock-type-face)
(,(regexp-opt sail2-special 'symbols) . font-lock-preprocessor-face)
("~" . font-lock-negation-char-face)
("\\(::\\)<" 1 font-lock-keyword-face)
("@" . font-lock-preprocessor-face)
("<->" . font-lock-negation-char-face)
("\'[a-zA-Z0-9_]+" . font-lock-variable-name-face)
("\\([a-zA-Z0-9_]+\\)(" 1 font-lock-function-name-face)
("function \\([a-zA-Z0-9_]+\\)" 1 font-lock-function-name-face)
("val \\([a-zA-Z0-9_]+\\)" 1 font-lock-function-name-face)
("\\_<\\([0-9]+\\|0b[0-9_]+\\|0x[0-9a-fA-F_]+\\|true\\|false\\|bitone\\|bitzero\\)\\_>\\|()" . font-lock-constant-face)))
(defconst sail2-mode-syntax-table
(let ((st (make-syntax-table)))
(modify-syntax-entry ?> "." st)
(modify-syntax-entry ?_ "w" st)
(modify-syntax-entry ?' "w" st)
(modify-syntax-entry ?* ". 23" st)
(modify-syntax-entry ?/ ". 124b" st)
(modify-syntax-entry ?\n "> b" st)
st)
"Syntax table for Sail2 mode")
(defun sail2-mode ()
"Major mode for editing Sail Language files"
(interactive)
(kill-all-local-variables)
(set-syntax-table sail2-mode-syntax-table)
(setq font-lock-defaults '(sail2-font-lock-keywords))
(setq comment-start-skip "\\(//+\\|/\\*+\\)\\s *")
(setq comment-start "/*")
(setq comment-end "*/")
(setq major-mode 'sail2-mode)
(setq mode-name "Sail2")
(run-hooks 'sail2-mode-hook))
(provide 'sail2-mode)
;;; sail-mode.el ends here
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