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|
;;; sml-defs.el --- Various definitions for sml-mode
;; Copyright (C) 1999,2000,2003,2005,2007,2012 Stefan Monnier
;;
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3 of the License, or
;; (at your option) any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program; if not, write to the Free Software
;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
;;; Commentary:
;;; Code:
(eval-when-compile (require 'cl))
(defgroup sml ()
"Editing SML code."
:group 'languages)
(defvar sml-outline-regexp
;; `st' and `si' are to match structure and signature.
" \\|s[ti]\\|[ \t]*\\(let[ \t]+\\)?\\(fun\\|and\\)\\>"
"Regexp matching a major heading.
This actually can't work without extending `outline-minor-mode' with the
notion of \"the end of an outline\".")
;;;
;;; Internal defines
;;;
(defvar sml-mode-map
(let ((map (make-sparse-keymap)))
;; Smarter cursor movement.
;; (define-key map [remap forward-sexp] 'sml-user-forward-sexp)
;; (define-key map [remap backward-sexp] 'sml-user-backward-sexp)
;; Text-formatting commands:
(define-key map "\C-c\C-m" 'sml-insert-form)
(define-key map "\C-c\C-i" 'sml-mode-info)
(define-key map "\M-|" 'sml-electric-pipe)
(define-key map "\M-\ " 'sml-electric-space)
(define-key map "\;" 'sml-electric-semi)
(define-key map [backtab] 'sml-back-to-outer-indent)
;; Process commands added to sml-mode-map -- these should autoload.
(define-key map "\C-c\C-l" 'sml-load-file)
(define-key map "\C-c\C-c" 'sml-compile)
(define-key map "\C-c\C-s" 'switch-to-sml)
(define-key map "\C-c\C-r" 'sml-send-region)
(define-key map "\C-c\C-b" 'sml-send-buffer)
map)
"The keymap used in `sml-mode'.")
(defconst sml-builtin-nested-comments-flag
(ignore-errors
(not (equal (let ((st (make-syntax-table)))
(modify-syntax-entry ?\* ". 23n" st) st)
(let ((st (make-syntax-table)))
(modify-syntax-entry ?\* ". 23" st) st))))
"Non-nil means this Emacs understands the `n' in syntax entries.")
(defvar sml-mode-syntax-table
(let ((st (make-syntax-table)))
(modify-syntax-entry ?\* (if sml-builtin-nested-comments-flag
". 23n" ". 23") st)
(modify-syntax-entry ?\( "()1" st)
(modify-syntax-entry ?\) ")(4" st)
(mapc (lambda (c) (modify-syntax-entry c "_" st)) "._'")
(mapc (lambda (c) (modify-syntax-entry c "." st)) ",;")
;; `!' is not really a prefix-char, oh well!
(mapc (lambda (c) (modify-syntax-entry c "'" st)) "~#!")
(mapc (lambda (c) (modify-syntax-entry c "." st)) "%&$+-/:<=>?@`^|")
st)
"The syntax table used in `sml-mode'.")
(easy-menu-define sml-mode-menu sml-mode-map "Menu used in `sml-mode'."
'("SML"
("Process"
["Start default ML compiler" run-sml t]
["-" nil nil]
["run CM.make" sml-compile t]
["load ML source file" sml-load-file t]
["switch to ML buffer" switch-to-sml t]
["--" nil nil]
["send buffer contents" sml-send-buffer t]
["send region" sml-send-region t]
["send paragraph" sml-send-function t]
["goto next error" next-error (featurep 'sml-proc)]
["---" nil nil]
;; ["Standard ML of New Jersey" sml-smlnj (fboundp 'sml-smlnj)]
;; ["Poly/ML" sml-poly-ml (fboundp 'sml-poly-ml)]
;; ["Moscow ML" sml-mosml (fboundp 'sml-mosml)]
["Help for Inferior ML" (describe-function 'inferior-sml-mode) :active (featurep 'sml-proc)])
["electric pipe" sml-electric-pipe t]
["insert SML form" sml-insert-form t]
("Forms" :filter sml-forms-menu)
("Format/Mode Variables"
["indent region" indent-region t]
["outdent" sml-back-to-outer-indent t]
;; ["-" nil nil]
;; ["set indent-level" sml-indent-level t]
;; ["set pipe-indent" sml-pipe-indent t]
;; ["--" nil nil]
;; ["toggle type-of-indent" sml-type-of-indent t]
;; ["toggle nested-if-indent" sml-nested-if-indent t]
;; ["toggle electric-semi-mode" sml-electric-semi-mode t]
)
["-----" nil nil]
["SML mode help (brief)" describe-mode t]
["SML mode *info*" sml-mode-info t]
["-----" nil nil]
["Remove overlay" (sml-error-overlay 'undo) t ;:active (sml-overlay-active-p)
]))
;; Make's sure they appear in the menu bar when sml-mode-map is active.
;; On the hook for XEmacs only -- see easy-menu-add in auc-menu.el.
;; (defun sml-mode-menu-bar ()
;; "Make sure menus appear in the menu bar as well as under mouse 3."
;; (and (eq major-mode 'sml-mode)
;; (easy-menu-add sml-mode-menu sml-mode-map)))
;; (add-hook 'sml-mode-hook 'sml-mode-menu-bar)
;;
;; regexps
;;
(defun sml-syms-re (syms)
(concat "\\<" (regexp-opt syms t) "\\>"))
;;
(defconst sml-module-head-syms
'("signature" "structure" "functor" "abstraction"))
(defconst sml-=-starter-syms
(list* "|" "val" "fun" "and" "datatype" "type" "abstype" "eqtype"
sml-module-head-syms)
"Symbols that can be followed by a `='.")
(defconst sml-=-starter-re
(concat "\\S.|\\S.\\|" (sml-syms-re (cdr sml-=-starter-syms)))
"Symbols that can be followed by a `='.")
(defconst sml-non-nested-of-starter-re
(sml-syms-re '("datatype" "abstype" "exception"))
"Symbols that can introduce an `of' that shouldn't behave like a paren.")
(defconst sml-starters-syms
(append sml-module-head-syms
'("abstype" "datatype" "exception" "fun"
"local" "infix" "infixr" "sharing" "nonfix"
"open" "type" "val" "and"
"withtype" "with"))
"The starters of new expressions.")
(defconst sml-pipeheads
'("|" "of" "fun" "fn" "and" "handle" "datatype" "abstype")
"A `|' corresponds to one of these.")
(provide 'sml-defs)
;;; sml-defs.el ends here
|
