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Annotation of 43BSD/contrib/emacs/lisp/mlsupport.el, revision 1.1

1.1     ! root        1: ;; Run-time support for mocklisp code.
        !             2: ;; Copyright (C) 1985 Richard M. Stallman.
        !             3: 
        !             4: ;; This file is part of GNU Emacs.
        !             5: 
        !             6: ;; GNU Emacs is distributed in the hope that it will be useful,
        !             7: ;; but WITHOUT ANY WARRANTY.  No author or distributor
        !             8: ;; accepts responsibility to anyone for the consequences of using it
        !             9: ;; or for whether it serves any particular purpose or works at all,
        !            10: ;; unless he says so in writing.  Refer to the GNU Emacs General Public
        !            11: ;; License for full details.
        !            12: 
        !            13: ;; Everyone is granted permission to copy, modify and redistribute
        !            14: ;; GNU Emacs, but only under the conditions described in the
        !            15: ;; GNU Emacs General Public License.   A copy of this license is
        !            16: ;; supposed to have been given to you along with GNU Emacs so you
        !            17: ;; can know your rights and responsibilities.  It should be in a
        !            18: ;; file named COPYING.  Among other things, the copyright notice
        !            19: ;; and this notice must be preserved on all copies.
        !            20: 
        !            21: 
        !            22: (provide 'mlsupport)
        !            23: 
        !            24: (defmacro ml-defun (&rest defs)
        !            25:   (list 'ml-defun-1 (list 'quote defs)))
        !            26: 
        !            27: (defun ml-defun-1 (args)
        !            28:   (while args
        !            29:     (fset (car (car args)) (cons 'mocklisp (cdr (car args))))
        !            30:     (setq args (cdr args))))
        !            31: 
        !            32: (defmacro declare-buffer-specific (&rest vars)
        !            33:   (cons 'progn (mapcar (function (lambda (var) (list 'make-variable-buffer-local (list 'quote var)))) vars)))
        !            34: 
        !            35: (defmacro setq-default (var val)
        !            36:   (list 'set-default (list 'quote var) val))
        !            37: 
        !            38: (defun ml-set-default (varname value)
        !            39:   (set-default (intern varname) value))
        !            40: 
        !            41: ; Lossage: must make various things default missing args to the prefix arg
        !            42: ; Alternatively, must make provide-prefix-argument do something hairy.
        !            43: 
        !            44: (defun >> (val count) (lsh val (- count)))
        !            45: (defun novalue () nil)
        !            46: 
        !            47: (defun provide-prefix-arg (arg form)
        !            48:   (funcall (car form) arg))
        !            49: 
        !            50: (defun define-keymap (name)
        !            51:   (fset (intern name) (make-keymap)))
        !            52: 
        !            53: (defun ml-use-local-map (name)
        !            54:   (use-local-map (intern (concat name "-map"))))
        !            55: 
        !            56: (defun ml-use-global-map (name)
        !            57:   (use-global-map (intern (concat name "-map"))))
        !            58: 
        !            59: (defun local-bind-to-key (name key)
        !            60:   (or (current-local-map)
        !            61:       (use-local-map (make-keymap)))
        !            62:   (define-key (current-local-map)
        !            63:     (if (integerp key)
        !            64:        (if (>= key 128)
        !            65:            (concat (char-to-string meta-prefix-char)
        !            66:                    (char-to-string (- key 128)))
        !            67:          (char-to-string key))
        !            68:       key)
        !            69:     (intern name)))
        !            70: 
        !            71: (defun bind-to-key (name key)
        !            72:   (define-key global-map (if (integerp key) (char-to-string key) key)
        !            73:     (intern name)))
        !            74: 
        !            75: (defun ml-autoload (name file)
        !            76:   (autoload (intern name) file))
        !            77: 
        !            78: (defun ml-define-string-macro (name defn)
        !            79:   (fset (intern name) defn))
        !            80: 
        !            81: (defun push-back-character (char)
        !            82:   (setq unread-command-char char))
        !            83: 
        !            84: (defun to-col (column)
        !            85:   (indent-to column 0))
        !            86: 
        !            87: (defmacro is-bound (&rest syms)
        !            88:   (cons 'and (mapcar (function (lambda (sym) (list 'boundp (list 'quote sym)))) syms)))
        !            89: 
        !            90: (defmacro declare-global (&rest syms)
        !            91:   (cons 'progn (mapcar (function (lambda (sym) (list 'defvar sym nil))) syms)))
        !            92: 
        !            93: (defmacro error-occurred (&rest body)
        !            94:   (list 'condition-case nil (cons 'progn (append body '(nil))) '(error t)))
        !            95: 
        !            96: (defun return-prefix-argument (value)
        !            97:   (setq prefix-arg value))
        !            98: 
        !            99: (defun ml-prefix-argument ()
        !           100:   (if (null current-prefix-arg) 1
        !           101:     (if (listp current-prefix-arg) (car current-prefix-arg)
        !           102:       (if (eq current-prefix-arg '-) -1
        !           103:        current-prefix-arg))))
        !           104: 
        !           105: (defun ml-print (varname)
        !           106:   (interactive "vPrint variable: ")
        !           107:   (if (boundp varname)
        !           108:     (message "%s => %s" (symbol-name varname) (symbol-value varname))
        !           109:     (message "%s has no value" (symbol-name varname))))
        !           110: 
        !           111: (defun ml-set (str val) (set (intern str) val))
        !           112: 
        !           113: (defun ml-message (&rest args) (message "%s" (apply 'concat args)))
        !           114: 
        !           115: (defun kill-to-end-of-line ()
        !           116:   (ml-prefix-argument-loop
        !           117:     (if (eolp)
        !           118:        (kill-region (point) (1+ (point)))
        !           119:       (kill-region (point) (if (search-forward ?\n nil t)
        !           120:                               (1- (point)) (point-max))))))
        !           121: 
        !           122: (defun set-auto-fill-hook (arg)
        !           123:   (setq auto-fill-hook (intern arg)))
        !           124: 
        !           125: (defun auto-execute (function pattern)
        !           126:   (if (/= (aref pattern 0) ?*)
        !           127:       (error "Only patterns starting with * supported in auto-execute"))
        !           128:   (setq auto-mode-alist
        !           129:        (cons (cons (substring pattern 1) function)
        !           130:              auto-mode-alist)))
        !           131: 
        !           132: (defun move-to-comment-column ()
        !           133:   (indent-to comment-column))
        !           134: 
        !           135: (defun erase-region ()
        !           136:   (delete-region (point) (mark)))
        !           137: 
        !           138: (defun delete-region-to-buffer (bufname)
        !           139:   (copy-to-buffer bufname (point) (mark))
        !           140:   (delete-region (point) (mark)))
        !           141: 
        !           142: (defun copy-region-to-buffer (bufname)
        !           143:   (copy-to-buffer bufname (point) (mark)))
        !           144: 
        !           145: (defun append-region-to-buffer (bufname)
        !           146:   (append-to-buffer bufname (point) (mark)))
        !           147: 
        !           148: (defun prepend-region-to-buffer (bufname)
        !           149:   (prepend-to-buffer bufname (point) (mark)))
        !           150: 
        !           151: (defun delete-next-character ()
        !           152:   (delete-char (ml-prefix-argument)))
        !           153: 
        !           154: (defun delete-next-word ()
        !           155:   (delete-region (point) (progn (forward-word (ml-prefix-argument)) (point))))
        !           156: 
        !           157: (defun delete-previous-word ()
        !           158:   (delete-region (point) (progn (backward-word (ml-prefix-argument)) (point))))
        !           159: 
        !           160: (defun delete-previous-character ()
        !           161:   (delete-backward-char (ml-prefix-argument)))
        !           162: 
        !           163: (defun forward-character ()
        !           164:   (forward-char (ml-prefix-argument)))
        !           165: 
        !           166: (defun backward-character ()
        !           167:   (backward-char (ml-prefix-argument)))
        !           168: 
        !           169: (defun ml-newline ()
        !           170:   (newline (ml-prefix-argument)))
        !           171: 
        !           172: (defun ml-next-line ()
        !           173:   (next-line (ml-prefix-argument)))
        !           174: 
        !           175: (defun ml-previous-line ()
        !           176:   (previous-line (ml-prefix-argument)))
        !           177: 
        !           178: (defun delete-to-kill-buffer ()
        !           179:   (kill-region (point) (mark)))
        !           180: 
        !           181: (defun narrow-region ()
        !           182:   (narrow-to-region (point) (mark)))
        !           183: 
        !           184: (defun ml-newline-and-indent ()
        !           185:   (let ((column (current-indentation)))
        !           186:     (newline (ml-prefix-argument))
        !           187:     (indent-to column)))
        !           188: 
        !           189: (defun newline-and-backup ()
        !           190:   (open-line (ml-prefix-argument)))
        !           191: 
        !           192: (defun quote-char ()
        !           193:   (quoted-insert (ml-prefix-argument)))
        !           194: 
        !           195: (defun ml-current-column ()
        !           196:   (1+ (current-column)))
        !           197: 
        !           198: (defun ml-current-indent ()
        !           199:   (1+ (current-indentation)))
        !           200: 
        !           201: (defun region-around-match (&optional n)
        !           202:   (set-mark (match-beginning n))
        !           203:   (goto-char (match-end n)))
        !           204: 
        !           205: (defun region-to-string ()
        !           206:   (buffer-substring (min (point) (mark)) (max (point) (mark))))
        !           207: 
        !           208: (defun use-abbrev-table (name)
        !           209:   (let ((symbol (intern (concat name "-abbrev-table"))))
        !           210:     (or (boundp symbol)
        !           211:        (define-abbrev-table symbol nil))
        !           212:     (symbol-value symbol)))
        !           213: 
        !           214: (defun define-hooked-local-abbrev (name exp hook)
        !           215:   (define-local-abbrev name exp (intern hook)))
        !           216: 
        !           217: (defun define-hooked-global-abbrev (name exp hook)
        !           218:   (define-global-abbrev name exp (intern hook)))
        !           219: 
        !           220: (defun case-word-lower ()
        !           221:   (ml-casify-word 'downcase-region))
        !           222: 
        !           223: (defun case-word-upper ()
        !           224:   (ml-casify-word 'upcase-region))
        !           225: 
        !           226: (defun case-word-capitalize ()
        !           227:   (ml-casify-word 'capitalize-region))
        !           228: 
        !           229: (defun ml-casify-word (fun)
        !           230:   (save-excursion
        !           231:    (forward-char 1)
        !           232:    (forward-word -1)
        !           233:    (funcall fun (point)
        !           234:            (progn (forward-word (ml-prefix-argument))
        !           235:                   (point)))))
        !           236: 
        !           237: (defun case-region-lower ()
        !           238:   (downcase-region (point) (mark)))
        !           239: 
        !           240: (defun case-region-upper ()
        !           241:   (upcase-region (point) (mark)))
        !           242: 
        !           243: (defun case-region-capitalize ()
        !           244:   (capitalize-region (point) (mark)))
        !           245: 
        !           246: (defun argc ()
        !           247:   (setq inhibit-command-line t)
        !           248:   (length command-line-args))
        !           249: 
        !           250: (defun argv (i)
        !           251:   (setq inhibit-command-line t)
        !           252:   (nth i command-line-args))
        !           253: 
        !           254: (defun invisible-argc ()
        !           255:   (length command-line-args))
        !           256: 
        !           257: (defun invisible-argv (i)
        !           258:   (nth i command-line-args))
        !           259: 
        !           260: (defun exit-emacs ()
        !           261:   (interactive)
        !           262:   (condition-case ()
        !           263:                  (exit-recursive-edit)
        !           264:     (error (kill-emacs))))
        !           265: 
        !           266: ;; Lisp function buffer-size returns total including invisible;
        !           267: ;; mocklisp wants just visible.
        !           268: (defun ml-buffer-size ()
        !           269:   (- (point-max) (point-min)))
        !           270: 
        !           271: (defun previous-command ()
        !           272:   last-command)
        !           273: 
        !           274: (defun beginning-of-window ()
        !           275:   (goto-char (window-start)))
        !           276: 
        !           277: (defun end-of-window ()
        !           278:   (goto-char (window-start))
        !           279:   (vertical-motion (- (window-height) 2)))
        !           280: 
        !           281: (defun ml-search-forward (string)
        !           282:   (search-forward string nil nil (ml-prefix-argument)))
        !           283: 
        !           284: (defun ml-re-search-forward (string)
        !           285:   (re-search-forward string nil nil (ml-prefix-argument)))
        !           286: 
        !           287: (defun ml-search-backward (string)
        !           288:   (search-backward string nil nil (ml-prefix-argument)))
        !           289: 
        !           290: (defun ml-re-search-backward (string)
        !           291:   (re-search-backward string nil nil (ml-prefix-argument)))
        !           292: 
        !           293: (defvar use-users-shell 1
        !           294:   "Mocklisp compatibility variable; 1 means use shell from SHELL env var.
        !           295: 0 means use /bin/sh.")
        !           296: 
        !           297: (defvar use-csh-option-f 1
        !           298:   "Mocklisp compatibility variable; 1 means pass -f when calling csh.")
        !           299: 
        !           300: (defun filter-region (command)
        !           301:   (let ((shell (if (/= use-users-shell 0) shell-file-name "/bin/sh"))
        !           302:        (csh (equal (file-name-nondirectory shell) "csh")))
        !           303:     (call-process-region (point) (mark) shell t t nil
        !           304:                         (if (and csh use-csh-option-f) "-cf" "-c")
        !           305:                         (concat "exec " command))))
        !           306: 
        !           307: (defun execute-monitor-command (command)
        !           308:   (let ((shell (if (/= use-users-shell 0) shell-file-name "/bin/sh"))
        !           309:        (csh (equal (file-name-nondirectory shell) "csh")))
        !           310:     (call-process shell nil t t
        !           311:                  (if (and csh use-csh-option-f) "-cf" "-c")
        !           312:                  (concat "exec " command))))
        !           313: 
        !           314: (defun use-syntax-table (name)
        !           315:   (set-syntax-table (symbol-value (intern (concat name "-syntax-table")))))
        !           316: 
        !           317: (defun line-to-top-of-window ()
        !           318:   (recenter (1- (ml-prefix-argument))))
        !           319: 
        !           320: (defun ml-previous-page (&optional arg)
        !           321:   (let ((count (or arg (ml-prefix-argument))))
        !           322:     (while (> count 0)
        !           323:       (scroll-down nil)
        !           324:       (setq count (1- count)))
        !           325:     (while (< count 0)
        !           326:       (scroll-up nil)
        !           327:       (setq count (1+ count)))))
        !           328: 
        !           329: (defun ml-next-page ()
        !           330:   (previous-page (- (ml-prefix-argument))))
        !           331: 
        !           332: (defun page-next-window (&optional arg)
        !           333:   (let ((count (or arg (ml-prefix-argument))))
        !           334:     (while (> count 0)
        !           335:       (scroll-other-window nil)
        !           336:       (setq count (1- count)))
        !           337:     (while (< count 0)
        !           338:       (scroll-other-window '-)
        !           339:       (setq count (1+ count)))))
        !           340: 
        !           341: (defun ml-next-window ()
        !           342:   (select-window (next-window)))
        !           343: 
        !           344: (defun ml-previous-window ()
        !           345:   (select-window (previous-window)))
        !           346: 
        !           347: (defun scroll-one-line-up ()
        !           348:   (scroll-up (ml-prefix-argument)))
        !           349: 
        !           350: (defun scroll-one-line-down ()
        !           351:   (scroll-down (ml-prefix-argument)))
        !           352: 
        !           353: (defun split-current-window ()
        !           354:   (split-window (selected-window)))
        !           355: 
        !           356: (defun last-key-struck () last-command-char)
        !           357: 
        !           358: (defun execute-mlisp-line (string)
        !           359:   (eval (read string)))
        !           360: 
        !           361: (defun move-dot-to-x-y (x y)
        !           362:   (goto-char (window-start (selected-window)))
        !           363:   (vertical-motion (1- y))
        !           364:   (move-to-column (1- x)))
        !           365: 
        !           366: (defun ml-modify-syntax-entry (string)
        !           367:   (let ((i 5)
        !           368:        (len (length string))
        !           369:        (datastring (substring string 0 2)))
        !           370:     (if (= (aref string 0) ?\-)
        !           371:        (aset datastring 0 ?\ ))
        !           372:     (if (= (aref string 2) ?\{)
        !           373:        (if (= (aref string 4) ?\ )
        !           374:            (aset datastring 0 ?\<)
        !           375:          (error "Two-char comment delimiter: use modify-syntax-entry directly")))
        !           376:     (if (= (aref string 3) ?\})
        !           377:        (if (= (aref string 4) ?\ )
        !           378:            (aset datastring 0 ?\>)
        !           379:          (error "Two-char comment delimiter: use modify-syntax-entry directly")))
        !           380:     (while (< i len)
        !           381:       (modify-syntax-entry
        !           382:        (aref string i)
        !           383:        datastring)
        !           384:       (setq i (1+ i))
        !           385:       (if (and (< i len)
        !           386:               (= (aref string i) ?\-))
        !           387:          (let ((c (aref string (1- i)))
        !           388:                (lim (aref string (1+ i))))
        !           389:            (while (<= c lim)
        !           390:              (modify-syntax-entry c datastring)
        !           391:              (setq c (1+ c)))
        !           392:            (setq i (+ 2 i)))))))

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