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Annotation of GNUtools/emacs/lisp/mlsupport.el, revision 1.1

1.1     ! root        1: ;; Run-time support for mocklisp code.
        !             2: ;; Copyright (C) 1985 Free Software Foundation, Inc.
        !             3: 
        !             4: ;; This file is part of GNU Emacs.
        !             5: 
        !             6: ;; GNU Emacs is free software; you can redistribute it and/or modify
        !             7: ;; it under the terms of the GNU General Public License as published by
        !             8: ;; the Free Software Foundation; either version 1, or (at your option)
        !             9: ;; any later version.
        !            10: 
        !            11: ;; GNU Emacs is distributed in the hope that it will be useful,
        !            12: ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            13: ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            14: ;; GNU General Public License for more details.
        !            15: 
        !            16: ;; You should have received a copy of the GNU General Public License
        !            17: ;; along with GNU Emacs; see the file COPYING.  If not, write to
        !            18: ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
        !            19: 
        !            20: 
        !            21: (provide 'mlsupport)
        !            22: 
        !            23: (defmacro ml-defun (&rest defs)
        !            24:   (list 'ml-defun-1 (list 'quote defs)))
        !            25: 
        !            26: (defun ml-defun-1 (args)
        !            27:   (while args
        !            28:     (fset (car (car args)) (cons 'mocklisp (cdr (car args))))
        !            29:     (setq args (cdr args))))
        !            30: 
        !            31: (defmacro declare-buffer-specific (&rest vars)
        !            32:   (cons 'progn (mapcar (function (lambda (var) (list 'make-variable-buffer-local (list 'quote var)))) vars)))
        !            33: 
        !            34: (defmacro setq-default (var val)
        !            35:   (list 'set-default (list 'quote var) val))
        !            36: 
        !            37: (defun ml-set-default (varname value)
        !            38:   (set-default (intern varname) value))
        !            39: 
        !            40: ; Lossage: must make various things default missing args to the prefix arg
        !            41: ; Alternatively, must make provide-prefix-argument do something hairy.
        !            42: 
        !            43: (defun >> (val count) (lsh val (- count)))
        !            44: (defun novalue () nil)
        !            45: 
        !            46: (defun ml-not (arg) (if (zerop arg) 1 0))
        !            47: 
        !            48: (defun provide-prefix-arg (arg form)
        !            49:   (funcall (car form) arg))
        !            50: 
        !            51: (defun define-keymap (name)
        !            52:   (fset (intern name) (make-keymap)))
        !            53: 
        !            54: (defun ml-use-local-map (name)
        !            55:   (use-local-map (intern (concat name "-map"))))
        !            56: 
        !            57: (defun ml-use-global-map (name)
        !            58:   (use-global-map (intern (concat name "-map"))))
        !            59: 
        !            60: (defun local-bind-to-key (name key)
        !            61:   (or (current-local-map)
        !            62:       (use-local-map (make-keymap)))
        !            63:   (define-key (current-local-map)
        !            64:     (if (integerp key)
        !            65:        (if (>= key 128)
        !            66:            (concat (char-to-string meta-prefix-char)
        !            67:                    (char-to-string (- key 128)))
        !            68:          (char-to-string key))
        !            69:       key)
        !            70:     (intern name)))
        !            71: 
        !            72: (defun bind-to-key (name key)
        !            73:   (define-key global-map (if (integerp key) (char-to-string key) key)
        !            74:     (intern name)))
        !            75: 
        !            76: (defun ml-autoload (name file)
        !            77:   (autoload (intern name) file))
        !            78: 
        !            79: (defun ml-define-string-macro (name defn)
        !            80:   (fset (intern name) defn))
        !            81: 
        !            82: (defun push-back-character (char)
        !            83:   (setq unread-command-char char))
        !            84: 
        !            85: (defun to-col (column)
        !            86:   (indent-to column 0))
        !            87: 
        !            88: (defmacro is-bound (&rest syms)
        !            89:   (cons 'and (mapcar (function (lambda (sym) (list 'boundp (list 'quote sym)))) syms)))
        !            90: 
        !            91: (defmacro declare-global (&rest syms)
        !            92:   (cons 'progn (mapcar (function (lambda (sym) (list 'defvar sym nil))) syms)))
        !            93: 
        !            94: (defmacro error-occurred (&rest body)
        !            95:   (list 'condition-case nil (cons 'progn (append body '(nil))) '(error t)))
        !            96: 
        !            97: (defun return-prefix-argument (value)
        !            98:   (setq prefix-arg value))
        !            99: 
        !           100: (defun ml-prefix-argument ()
        !           101:   (if (null current-prefix-arg) 1
        !           102:     (if (listp current-prefix-arg) (car current-prefix-arg)
        !           103:       (if (eq current-prefix-arg '-) -1
        !           104:        current-prefix-arg))))
        !           105: 
        !           106: (defun ml-print (varname)
        !           107:   (interactive "vPrint variable: ")
        !           108:   (if (boundp varname)
        !           109:     (message "%s => %s" (symbol-name varname) (symbol-value varname))
        !           110:     (message "%s has no value" (symbol-name varname))))
        !           111: 
        !           112: (defun ml-set (str val) (set (intern str) val))
        !           113: 
        !           114: (defun ml-message (&rest args) (message "%s" (apply 'concat args)))
        !           115: 
        !           116: (defun kill-to-end-of-line ()
        !           117:   (ml-prefix-argument-loop
        !           118:     (if (eolp)
        !           119:        (kill-region (point) (1+ (point)))
        !           120:       (kill-region (point) (if (search-forward ?\n nil t)
        !           121:                               (1- (point)) (point-max))))))
        !           122: 
        !           123: (defun set-auto-fill-hook (arg)
        !           124:   (setq auto-fill-hook (intern arg)))
        !           125: 
        !           126: (defun auto-execute (function pattern)
        !           127:   (if (/= (aref pattern 0) ?*)
        !           128:       (error "Only patterns starting with * supported in auto-execute"))
        !           129:   (setq auto-mode-alist (cons (cons (concat "\\." (substring pattern 1)
        !           130:                                            "$")
        !           131:                                    function)
        !           132:                              auto-mode-alist)))
        !           133: 
        !           134: (defun move-to-comment-column ()
        !           135:   (indent-to comment-column))
        !           136: 
        !           137: (defun erase-region ()
        !           138:   (delete-region (point) (mark)))
        !           139: 
        !           140: (defun delete-region-to-buffer (bufname)
        !           141:   (copy-to-buffer bufname (point) (mark))
        !           142:   (delete-region (point) (mark)))
        !           143: 
        !           144: (defun copy-region-to-buffer (bufname)
        !           145:   (copy-to-buffer bufname (point) (mark)))
        !           146: 
        !           147: (defun append-region-to-buffer (bufname)
        !           148:   (append-to-buffer bufname (point) (mark)))
        !           149: 
        !           150: (defun prepend-region-to-buffer (bufname)
        !           151:   (prepend-to-buffer bufname (point) (mark)))
        !           152: 
        !           153: (defun delete-next-character ()
        !           154:   (delete-char (ml-prefix-argument)))
        !           155: 
        !           156: (defun delete-next-word ()
        !           157:   (delete-region (point) (progn (forward-word (ml-prefix-argument)) (point))))
        !           158: 
        !           159: (defun delete-previous-word ()
        !           160:   (delete-region (point) (progn (backward-word (ml-prefix-argument)) (point))))
        !           161: 
        !           162: (defun delete-previous-character ()
        !           163:   (delete-backward-char (ml-prefix-argument)))
        !           164: 
        !           165: (defun forward-character ()
        !           166:   (forward-char (ml-prefix-argument)))
        !           167: 
        !           168: (defun backward-character ()
        !           169:   (backward-char (ml-prefix-argument)))
        !           170: 
        !           171: (defun ml-newline ()
        !           172:   (newline (ml-prefix-argument)))
        !           173: 
        !           174: (defun ml-next-line ()
        !           175:   (next-line (ml-prefix-argument)))
        !           176: 
        !           177: (defun ml-previous-line ()
        !           178:   (previous-line (ml-prefix-argument)))
        !           179: 
        !           180: (defun delete-to-kill-buffer ()
        !           181:   (kill-region (point) (mark)))
        !           182: 
        !           183: (defun narrow-region ()
        !           184:   (narrow-to-region (point) (mark)))
        !           185: 
        !           186: (defun ml-newline-and-indent ()
        !           187:   (let ((column (current-indentation)))
        !           188:     (newline (ml-prefix-argument))
        !           189:     (indent-to column)))
        !           190: 
        !           191: (defun newline-and-backup ()
        !           192:   (open-line (ml-prefix-argument)))
        !           193: 
        !           194: (defun quote-char ()
        !           195:   (quoted-insert (ml-prefix-argument)))
        !           196: 
        !           197: (defun ml-current-column ()
        !           198:   (1+ (current-column)))
        !           199: 
        !           200: (defun ml-current-indent ()
        !           201:   (1+ (current-indentation)))
        !           202: 
        !           203: (defun region-around-match (&optional n)
        !           204:   (set-mark (match-beginning n))
        !           205:   (goto-char (match-end n)))
        !           206: 
        !           207: (defun region-to-string ()
        !           208:   (buffer-substring (min (point) (mark)) (max (point) (mark))))
        !           209: 
        !           210: (defun use-abbrev-table (name)
        !           211:   (let ((symbol (intern (concat name "-abbrev-table"))))
        !           212:     (or (boundp symbol)
        !           213:        (define-abbrev-table symbol nil))
        !           214:     (symbol-value symbol)))
        !           215: 
        !           216: (defun define-hooked-local-abbrev (name exp hook)
        !           217:   (define-local-abbrev name exp (intern hook)))
        !           218: 
        !           219: (defun define-hooked-global-abbrev (name exp hook)
        !           220:   (define-global-abbrev name exp (intern hook)))
        !           221: 
        !           222: (defun case-word-lower ()
        !           223:   (ml-casify-word 'downcase-region))
        !           224: 
        !           225: (defun case-word-upper ()
        !           226:   (ml-casify-word 'upcase-region))
        !           227: 
        !           228: (defun case-word-capitalize ()
        !           229:   (ml-casify-word 'capitalize-region))
        !           230: 
        !           231: (defun ml-casify-word (fun)
        !           232:   (save-excursion
        !           233:    (forward-char 1)
        !           234:    (forward-word -1)
        !           235:    (funcall fun (point)
        !           236:            (progn (forward-word (ml-prefix-argument))
        !           237:                   (point)))))
        !           238: 
        !           239: (defun case-region-lower ()
        !           240:   (downcase-region (point) (mark)))
        !           241: 
        !           242: (defun case-region-upper ()
        !           243:   (upcase-region (point) (mark)))
        !           244: 
        !           245: (defun case-region-capitalize ()
        !           246:   (capitalize-region (point) (mark)))
        !           247: 
        !           248: (defvar saved-command-line-args nil)
        !           249: 
        !           250: (defun argc ()
        !           251:   (or saved-command-line-args
        !           252:       (setq saved-command-line-args command-line-args
        !           253:            command-line-args ()))
        !           254:   (length command-line-args))
        !           255: 
        !           256: (defun argv (i)
        !           257:   (or saved-command-line-args
        !           258:       (setq saved-command-line-args command-line-args
        !           259:            command-line-args ()))
        !           260:   (nth i saved-command-line-args))
        !           261: 
        !           262: (defun invisible-argc ()
        !           263:   (length (or saved-command-line-args
        !           264:              command-line-args)))
        !           265: 
        !           266: (defun invisible-argv (i)
        !           267:   (nth i (or saved-command-line-args
        !           268:             command-line-args)))
        !           269: 
        !           270: (defun exit-emacs ()
        !           271:   (interactive)
        !           272:   (condition-case ()
        !           273:       (exit-recursive-edit)
        !           274:     (error (kill-emacs))))
        !           275: 
        !           276: ;; Lisp function buffer-size returns total including invisible;
        !           277: ;; mocklisp wants just visible.
        !           278: (defun ml-buffer-size ()
        !           279:   (- (point-max) (point-min)))
        !           280: 
        !           281: (defun previous-command ()
        !           282:   last-command)
        !           283: 
        !           284: (defun beginning-of-window ()
        !           285:   (goto-char (window-start)))
        !           286: 
        !           287: (defun end-of-window ()
        !           288:   (goto-char (window-start))
        !           289:   (vertical-motion (- (window-height) 2)))
        !           290: 
        !           291: (defun ml-search-forward (string)
        !           292:   (search-forward string nil nil (ml-prefix-argument)))
        !           293: 
        !           294: (defun ml-re-search-forward (string)
        !           295:   (re-search-forward string nil nil (ml-prefix-argument)))
        !           296: 
        !           297: (defun ml-search-backward (string)
        !           298:   (search-backward string nil nil (ml-prefix-argument)))
        !           299: 
        !           300: (defun ml-re-search-backward (string)
        !           301:   (re-search-backward string nil nil (ml-prefix-argument)))
        !           302: 
        !           303: (defvar use-users-shell 1
        !           304:   "Mocklisp compatibility variable; 1 means use shell from SHELL env var.
        !           305: 0 means use /bin/sh.")
        !           306: 
        !           307: (defvar use-csh-option-f 1
        !           308:   "Mocklisp compatibility variable; 1 means pass -f when calling csh.")
        !           309: 
        !           310: (defun filter-region (command)
        !           311:   (let ((shell (if (/= use-users-shell 0) shell-file-name "/bin/sh"))
        !           312:        (csh (equal (file-name-nondirectory shell) "csh")))
        !           313:     (call-process-region (point) (mark) shell t t nil
        !           314:                         (if (and csh use-csh-option-f) "-cf" "-c")
        !           315:                         (concat "exec " command))))
        !           316: 
        !           317: (defun execute-monitor-command (command)
        !           318:   (let ((shell (if (/= use-users-shell 0) shell-file-name "/bin/sh"))
        !           319:        (csh (equal (file-name-nondirectory shell) "csh")))
        !           320:     (call-process shell nil t t
        !           321:                  (if (and csh use-csh-option-f) "-cf" "-c")
        !           322:                  (concat "exec " command))))
        !           323: 
        !           324: (defun use-syntax-table (name)
        !           325:   (set-syntax-table (symbol-value (intern (concat name "-syntax-table")))))
        !           326: 
        !           327: (defun line-to-top-of-window ()
        !           328:   (recenter (1- (ml-prefix-argument))))
        !           329: 
        !           330: (defun ml-previous-page (&optional arg)
        !           331:   (let ((count (or arg (ml-prefix-argument))))
        !           332:     (while (> count 0)
        !           333:       (scroll-down nil)
        !           334:       (setq count (1- count)))
        !           335:     (while (< count 0)
        !           336:       (scroll-up nil)
        !           337:       (setq count (1+ count)))))
        !           338: 
        !           339: (defun ml-next-page ()
        !           340:   (previous-page (- (ml-prefix-argument))))
        !           341: 
        !           342: (defun page-next-window (&optional arg)
        !           343:   (let ((count (or arg (ml-prefix-argument))))
        !           344:     (while (> count 0)
        !           345:       (scroll-other-window nil)
        !           346:       (setq count (1- count)))
        !           347:     (while (< count 0)
        !           348:       (scroll-other-window '-)
        !           349:       (setq count (1+ count)))))
        !           350: 
        !           351: (defun ml-next-window ()
        !           352:   (select-window (next-window)))
        !           353: 
        !           354: (defun ml-previous-window ()
        !           355:   (select-window (previous-window)))
        !           356: 
        !           357: (defun scroll-one-line-up ()
        !           358:   (scroll-up (ml-prefix-argument)))
        !           359: 
        !           360: (defun scroll-one-line-down ()
        !           361:   (scroll-down (ml-prefix-argument)))
        !           362: 
        !           363: (defun split-current-window ()
        !           364:   (split-window (selected-window)))
        !           365: 
        !           366: (defun last-key-struck () last-command-char)
        !           367: 
        !           368: (defun execute-mlisp-line (string)
        !           369:   (eval (read string)))
        !           370: 
        !           371: (defun move-dot-to-x-y (x y)
        !           372:   (goto-char (window-start (selected-window)))
        !           373:   (vertical-motion (1- y))
        !           374:   (move-to-column (1- x)))
        !           375: 
        !           376: (defun ml-modify-syntax-entry (string)
        !           377:   (let ((i 5)
        !           378:        (len (length string))
        !           379:        (datastring (substring string 0 2)))
        !           380:     (if (= (aref string 0) ?\-)
        !           381:        (aset datastring 0 ?\ ))
        !           382:     (if (= (aref string 2) ?\{)
        !           383:        (if (= (aref string 4) ?\ )
        !           384:            (aset datastring 0 ?\<)
        !           385:          (error "Two-char comment delimiter: use modify-syntax-entry directly")))
        !           386:     (if (= (aref string 3) ?\})
        !           387:        (if (= (aref string 4) ?\ )
        !           388:            (aset datastring 0 ?\>)
        !           389:          (error "Two-char comment delimiter: use modify-syntax-entry directly")))
        !           390:     (while (< i len)
        !           391:       (modify-syntax-entry (aref string i) datastring)
        !           392:       (setq i (1+ i))
        !           393:       (if (and (< i len)
        !           394:               (= (aref string i) ?\-))
        !           395:          (let ((c (aref string (1- i)))
        !           396:                (lim (aref string (1+ i))))
        !           397:            (while (<= c lim)
        !           398:              (modify-syntax-entry c datastring)
        !           399:              (setq c (1+ c)))
        !           400:            (setq i (+ 2 i)))))))
        !           401: 
        !           402: 
        !           403: 
        !           404: (defun ml-substr (string from to)
        !           405:   (let ((length (length string)))
        !           406:     (if (< from 0) (setq from (+ from length)))
        !           407:     (if (< to 0) (setq to (+ to length)))
        !           408:     (substring string from (+ from to))))

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