Initial revision

lisp/term/bg-mouse.el

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+;; GNU Emacs code for BBN Bitgraph mouse.
+;; Copyright (C) Free Software Foundation, Inc. Oct 1985.
+;; Time stamp <89/03/21 14:27:08 gildea>
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs 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 1, or (at your option)
+;; any later version.
+
+;; GNU Emacs 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 GNU Emacs; see the file COPYING.  If not, write to
+;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+
+;;;  Original version by John Robinson (jr@bbn-unix.arpa, bbncca!jr), Oct 1985
+;;;  Modularized and enhanced by gildea@bbn.com Nov 1987
+
+(provide 'bg-mouse)
+
+;;;  User customization option:
+
+(defvar bg-mouse-fast-select-window nil
+  "*Non-nil for mouse hits to select new window, then execute; else just select.")
+
+;;; These numbers are summed to make the index into the mouse-map.
+;;; The low three bits correspond to what the mouse actually sends.
+(defconst bg-button-r 1)
+(defconst bg-button-m 2)
+(defconst bg-button-c 2)
+(defconst bg-button-l 4)
+(defconst bg-in-modeline 8)
+(defconst bg-in-scrollbar 16)
+(defconst bg-in-minibuf 24)
+
+;;; semicolon screws up indenting, so use this instead
+(defconst semicolon ?\;)
+
+;;;  Defuns:
+
+(defun bg-mouse-report (prefix-arg)
+  "Read, parse, and execute a BBN BitGraph mouse click.
+
+L-- move point             | These apply for mouse click in a window.
+--R set mark               | If bg-mouse-fast-select-window is nil,
+L-R kill region            | these commands on a nonselected window
+-C- move point and yank    | just select that window.
+LC- yank-pop		   |
+-CR or LCR undo		   | \"Scroll bar\" is right-hand window column.
+
+on modeline:		    on \"scroll bar\":	in minibuffer:
+L-- scroll-up		    line to top		execute-extended-command
+--R scroll-down		    line to bottom	eval-expression
+-C- proportional goto-char  line to middle	suspend-emacs
+
+To reinitialize the mouse if the terminal is reset, type ESC : RET"
+  (interactive "P")
+  (bg-get-tty-num semicolon)
+  (let*
+      ((screen-mouse-x (min (1- (screen-width))	;don't hit column 86!
+			    (/ (bg-get-tty-num semicolon) 9)))
+       (screen-mouse-y (- (1- (screen-height)) ;assume default font size.
+			  (/ (bg-get-tty-num semicolon) 16))) 
+       (bg-mouse-buttons (% (bg-get-tty-num ?c) 8))
+       (bg-mouse-window (bg-window-from-x-y screen-mouse-x screen-mouse-y))
+       (bg-cursor-window (selected-window))
+       (edges (window-edges bg-mouse-window))
+       (minibuf-p (= screen-mouse-y (1- (screen-height))))
+       (in-modeline-p (and (not minibuf-p)
+			   (= screen-mouse-y (1- (nth 3 edges)))))
+       (in-scrollbar-p (and (not minibuf-p) (not in-modeline-p)
+			    (>= screen-mouse-x (1- (nth 2 edges)))))
+       (same-window-p (eq bg-mouse-window bg-cursor-window))
+       (in-minibuf-p (and minibuf-p
+			  (not bg-mouse-window))) ;minibuf must be inactive
+       (bg-mode-bits (+ (if in-minibuf-p bg-in-minibuf 0)
+			(if in-modeline-p bg-in-modeline 0)
+			(if in-scrollbar-p bg-in-scrollbar 0)))
+       (bg-command
+	 (lookup-key mouse-map
+		     (char-to-string (+ bg-mode-bits bg-mouse-buttons))))
+       (bg-mouse-x (- screen-mouse-x (nth 0 edges)))
+       (bg-mouse-y (- screen-mouse-y (nth 1 edges))))
+    (cond ((or in-modeline-p in-scrollbar-p)
+	   (select-window bg-mouse-window)
+	   (bg-command-execute bg-command)
+	   (select-window bg-cursor-window))
+	  ((or same-window-p in-minibuf-p)
+	   (bg-command-execute bg-command))
+	  (t				;in another window
+	    (select-window bg-mouse-window)
+	    (if bg-mouse-fast-select-window
+		(bg-command-execute bg-command)))
+	  )))
+
+
+;;; Library of commands:
+
+(defun bg-set-point ()
+  "Move point to location of BitGraph mouse."
+  (interactive)
+  (bg-move-point-to-x-y bg-mouse-x bg-mouse-y)
+  (setq this-command 'next-line)	;make subsequent line moves work
+  (setq temporary-goal-column bg-mouse-x))
+
+(defun bg-set-mark ()
+  "Set mark at location of BitGraph mouse."
+  (interactive)
+  (push-mark)
+  (bg-move-point-to-x-y bg-mouse-x bg-mouse-y)
+  (exchange-point-and-mark))
+
+(defun bg-yank ()
+  "Move point to location of BitGraph mouse and yank."
+  (interactive "*")
+  (bg-move-point-to-x-y bg-mouse-x bg-mouse-y)
+  (setq this-command 'yank)
+  (yank))
+
+(defun yank-pop-1 ()
+  (interactive "*")
+  (yank-pop 1))
+
+(defun bg-yank-or-pop ()
+  "Move point to location of BitGraph mouse and yank.  If last command
+was a yank, do a yank-pop."
+  (interactive "*")
+  (if (eql last-command 'yank)
+      (yank-pop 1)
+    (bg-yank)))
+
+;;; In 18.51, Emacs Lisp doesn't provide most-positive-fixnum
+(defconst bg-most-positive-fixnum 8388607)
+
+(defun bg-move-by-percentage ()
+  "Go to location in buffer that is the same percentage of the way
+through the buffer as the BitGraph mouse's X position in the window."
+  (interactive)
+  ;; check carefully for overflow in intermediate calculations
+  (goto-char
+   (cond ((zerop bg-mouse-x)
+	  0)
+	 ((< (buffer-size) (/ bg-most-positive-fixnum bg-mouse-x))
+	  ;; no danger of overflow: compute it exactly
+	  (/ (* bg-mouse-x (buffer-size))
+	     (1- (window-width))))
+	 (t
+	  ;; overflow possible: approximate
+	  (* (/ (buffer-size) (1- (window-width)))
+	     bg-mouse-x))))
+  (beginning-of-line)
+  (what-cursor-position))
+
+(defun bg-mouse-line-to-top ()
+  "Scroll the line pointed to by the BitGraph mouse to the top of the window."
+  (interactive)
+  (scroll-up bg-mouse-y))
+
+(defun bg-mouse-line-to-center ()
+  "Scroll the line pointed to by the BitGraph mouse to the center 
+of the window"
+  (interactive)
+  (scroll-up (/ (+ 2 bg-mouse-y bg-mouse-y (- (window-height))) 2)))
+
+(defun bg-mouse-line-to-bottom ()
+  "Scroll the line pointed to by the mouse to the bottom of the window."
+  (interactive)
+  (scroll-up (+ bg-mouse-y (- 2 (window-height)))))
+
+(defun bg-kill-region ()
+  (interactive "*")
+  (kill-region (region-beginning) (region-end)))
+
+(defun bg-insert-moused-sexp ()
+  "Insert a copy of the word (actually sexp) that the mouse is pointing at.
+Sexp is inserted into the buffer at point (where the text cursor is)."
+  (interactive)
+  (let ((moused-text
+	  (save-excursion
+	    (bg-move-point-to-x-y bg-mouse-x bg-mouse-y)
+	    (if (looking-at "\\s)")
+		(forward-char 1)
+	      (forward-sexp 1))
+	    (buffer-substring (save-excursion (backward-sexp 1) (point))
+			      (point)))))
+    (select-window bg-cursor-window)
+    (delete-horizontal-space)
+    (cond
+     ((bolp)
+      (indent-according-to-mode))
+     ;; In Lisp assume double-quote is closing; in Text assume opening.
+     ;; Why?  Because it does the right thing most often.
+     ((save-excursion (forward-char -1)
+		      (and (not (looking-at "\\s\""))
+			   (looking-at "[`'\"\\]\\|\\s(")))
+      nil)
+     (t
+      (insert-string " ")))
+    (insert-string moused-text)
+    (or (eolp)
+	(looking-at "\\s.\\|\\s)")
+	(and (looking-at "'") (looking-at "\\sw")) ;hack for text mode
+	(save-excursion (insert-string " ")))))
+
+;;; Utility functions:
+
+(defun bg-get-tty-num (term-char)
+  "Read from terminal until TERM-CHAR is read, and return intervening number.
+If non-numeric not matching TERM-CHAR, reprogram the mouse and signal an error."
+  (let
+      ((num 0)
+       (char (- (read-char) 48)))
+    (while (and (>= char 0)
+		(<= char 9))
+      (setq num (+ (* num 10) char))
+      (setq char (- (read-char) 48)))
+    (or (eq term-char (+ char 48))
+	(progn
+	  (bg-program-mouse)
+	  (error
+	    "Invalid data format in bg-mouse command: mouse reinitialized.")))
+    num))
+
+;;; Note that this fails in the minibuf because move-to-column doesn't
+;;; allow for the width of the prompt.
+(defun bg-move-point-to-x-y (x y)
+  "Position cursor in window coordinates.
+X and Y are 0-based character positions in the window."
+  (move-to-window-line y)
+  ;; if not on a wrapped line, zero-column will be 0
+  (let ((zero-column (current-column))
+	(scroll-offset (window-hscroll)))
+    ;; scrolling takes up column 0 to display the $
+    (if (> scroll-offset 0)
+	(setq scroll-offset (1- scroll-offset)))
+    (move-to-column (+ zero-column scroll-offset x))
+    ))
+
+;;; Returns the window that screen position (x, y) is in or nil if none,
+;;; meaning we are in the echo area with a non-active minibuffer.
+;;; If coordinates-in-window-p were not in an X-windows-specific file
+;;; we could use that.  In Emacs 19 can even use locate-window-from-coordinates
+(defun bg-window-from-x-y (x y)
+  "Find window corresponding to screen coordinates.
+X and Y are 0-based character positions on the screen."
+  (let ((edges (window-edges))
+	(window nil))
+    (while (and (not (eq window (selected-window)))
+		(or (<  y (nth 1 edges))
+		    (>= y (nth 3 edges))
+		    (<  x (nth 0 edges))
+		    (>= x (nth 2 edges))))
+      (setq window (next-window window))
+      (setq edges (window-edges window)))
+    (cond ((eq window (selected-window))
+	   nil)				;we've looped: not found
+	  ((not window)
+	   (selected-window))		;just starting: current window
+	  (t
+	    window))
+    ))
+
+(defun bg-command-execute (bg-command)
+  (if (commandp bg-command)
+      (command-execute bg-command)
+    (ding)))
+
+(defun bg-program-mouse ()
+  (send-string-to-terminal "\e:0;7;;;360;512;9;16;9;16c"))
+
+;;; Note that the doc string for mouse-map (as defined in subr.el)
+;;; says it is for the X-window mouse.  This is wrong; that keymap
+;;; should be used for your mouse no matter what terminal you have.
+
+(or (keymapp mouse-map)
+    (setq mouse-map (make-keymap)))
+
+(defun bind-bg-mouse-click (click-code function)
+  "Bind bg-mouse CLICK-CODE to run FUNCTION."
+  (define-key mouse-map (char-to-string click-code) function))
+
+(bind-bg-mouse-click bg-button-l 'bg-set-point) 
+(bind-bg-mouse-click bg-button-m 'bg-yank)
+(bind-bg-mouse-click bg-button-r 'bg-set-mark)
+(bind-bg-mouse-click (+ bg-button-l bg-button-m) 'yank-pop-1)
+(bind-bg-mouse-click (+ bg-button-l bg-button-r) 'bg-kill-region)
+(bind-bg-mouse-click (+ bg-button-m bg-button-r) 'undo)
+(bind-bg-mouse-click (+ bg-button-l bg-button-m bg-button-r) 'undo)
+(bind-bg-mouse-click (+ bg-in-modeline bg-button-l) 'scroll-up)
+(bind-bg-mouse-click (+ bg-in-modeline bg-button-m) 'bg-move-by-percentage)
+(bind-bg-mouse-click (+ bg-in-modeline bg-button-r) 'scroll-down)
+(bind-bg-mouse-click (+ bg-in-scrollbar bg-button-l) 'bg-mouse-line-to-top)
+(bind-bg-mouse-click (+ bg-in-scrollbar bg-button-m) 'bg-mouse-line-to-center)
+(bind-bg-mouse-click (+ bg-in-scrollbar bg-button-r) 'bg-mouse-line-to-bottom)
+(bind-bg-mouse-click (+ bg-in-minibuf bg-button-l) 'execute-extended-command)
+(bind-bg-mouse-click (+ bg-in-minibuf bg-button-m) 'suspend-emacs)
+(bind-bg-mouse-click (+ bg-in-minibuf bg-button-r) 'eval-expression)
+

lisp/textmodes/bib-mode.el

@@ -0,0 +1,233 @@
+;; bib-mode, major mode for editing bib files.
+;; Copyright (C) 1989 Free Software Foundation, Inc.
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs 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 1, or (at your option)
+;; any later version.
+
+;; GNU Emacs 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 GNU Emacs; see the file COPYING.  If not, write to
+;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+
+;; Bib-Mode
+;;   GNU Emacs code to help maintain databases compatible with (troff)
+;;   refer and lookbib.  The file bib-file should be set to your 
+;;   bibliography file.  Keys are automagically inserted as you type,
+;;   and appropriate keys are presented for various kinds of entries.
+
+(provide 'bib-mode)
+
+(defvar bib-file "~/my-bibliography.bib" 
+   "Default name of file used by `addbib'.")
+
+(defvar unread-bib-file "~/to-be-read.bib"
+   "Default name of file used by `unread-bib' in Bib mode.")
+
+(defvar bib-mode-map (copy-keymap text-mode-map))
+(define-key bib-mode-map "\C-M" 'return-key-bib)
+(define-key bib-mode-map "\C-c\C-u" 'unread-bib)
+(define-key bib-mode-map "\C-c\C-@" 'mark-bib)
+(define-key bib-mode-map "\e`" 'abbrev-mode)
+(defvar bib-mode-abbrev-table nil
+   "Abbrev table used in Bib mode")
+
+(defun addbib ()
+   "Set up editor to add to troff bibliography file specified 
+by global variable `bib-file'.  See description of `bib-mode'."
+   (interactive)
+   (find-file bib-file)
+   (goto-char (point-max))
+   (bib-mode)
+   )
+   
+(defun bib-mode ()
+   "Mode for editing `lookbib' style bibliographies.  
+Hit RETURN to get next % field key.
+If you want to ignore this field, just hit RETURN again.
+Use `text-mode' to turn this feature off.
+
+ journal papers:                    A* T D J V N P K W X
+ articles in books & proceedings:   A* T D B E* I C P K W X 
+ tech reports:                      A* T D R I C K W X
+ books:                             A* T D I C K W X
+
+Fields:
+
+A uthor		T itle		D ate  		J ournal
+V olume		N umber		P age		K eywords
+B in book or proceedings	E ditor		C ity & state
+I nstitution, school, or publisher
+R eport number or 'phd thesis' or 'masters thesis' or 'draft' or 
+     'unnumbered' or 'unpublished'
+W here can be found locally (login name, or ailib, etc.)
+X comments (not used in indexing)
+
+\\[unread-bib] appends current entry to a different file (for example,
+a file of papers to be read in the future), given by the value of the
+variable `unread-bib-file'.
+\\[mark-bib] marks current or previous entry.
+Abbreviations are saved in `bib-mode-abbrev-table'.
+Hook can be stored in `bib-mode-hook'.
+Field keys given by variable `bib-assoc'.
+
+Commands:
+\\{bib-mode-map}
+"
+   (interactive)
+   (text-mode)
+   (use-local-map bib-mode-map)
+   (setq mode-name "Bib")
+   (setq major-mode 'bib-mode)
+   (define-abbrev-table 'bib-mode-abbrev-table ())
+   (setq local-abbrev-table bib-mode-abbrev-table)
+   (abbrev-mode 1)
+   (run-hooks 'bib-mode-hook)
+   )
+
+(defconst bib-assoc '(
+		   (" *$" . "%A ")
+		   ("%A ." . "%A ")
+		   ("%A $" . "%T ")
+		   ("%T " . "%D ")
+		   ("%D " . "%J ")
+		   ("%J ." . "%V ")
+		   ("%V " . "%N ")
+		   ("%N " . "%P ")
+		   ("%P " . "%K ")
+		   ("%K " . "%W ")
+		   ("%W " . "%X ")
+		   ("%X " . "")
+		   ("%J $" . "%B ")
+		   ("%B ." . "%E ")
+		   ("%E ." . "%E ")
+		   ("%E $" . "%I ")
+		   ("%I " . "%C ")
+		   ("%C " . "%P ")
+		   ("%B $" . "%R ")
+		   ("%R " . "%I ")
+		   )
+		   
+"Describes bibliographic database format.  A line beginning with
+the car of an entry is followed by one beginning with the cdr.
+")
+
+(defun bib-find-key (slots)
+   (cond
+      ((null slots)
+	 (if (bobp)
+	    ""
+	    (progn (previous-line 1) (bib-find-key bib-assoc))))
+      ((looking-at (car (car slots)))
+	 (cdr (car slots)))
+      (t (bib-find-key (cdr slots)))
+      ))
+
+
+(defvar bib-auto-capitalize t 
+"*True to automatically capitalize appropriate fields in Bib mode.")
+
+(defconst bib-capitalized-fields "%[AETCBIJR]")
+
+(defun return-key-bib ()
+  "Magic when user hits return, used by `bib-mode'."
+  (interactive)
+  (if (eolp)
+    (let (empty new-key beg-current end-current)
+      (beginning-of-line)
+      (setq empty (looking-at "%. $"))
+      (if (not empty)
+	(progn
+	  (end-of-line)
+	  (newline)
+	  (forward-line -1)
+	  ))
+      (end-of-line)
+      (setq end-current (point))
+      (beginning-of-line)
+      (setq beg-current (point))
+      (setq new-key (bib-find-key bib-assoc))
+      (if (and (not empty) bib-auto-capitalize
+	    (looking-at bib-capitalized-fields))
+	(save-excursion
+	  (capitalize-title-region (+ (point) 3) end-current)))
+      (goto-char beg-current)
+      (if empty
+	(kill-line nil)
+	(forward-line 1)
+	)
+      (insert-string new-key))
+    (newline)))
+
+(defun mark-bib ()
+   "Set mark at beginning of current or previous bib entry, point at end."
+   (interactive)
+   (beginning-of-line nil)
+   (if (looking-at "^ *$") (re-search-backward "[^ \n]" nil 2))
+   (re-search-backward "^ *$" nil 2)
+   (re-search-forward "^%")
+   (beginning-of-line nil)
+   (push-mark (point))
+   (re-search-forward "^ *$" nil 2)
+   (next-line 1)
+   (beginning-of-line nil))
+
+(defun unread-bib ()
+   "Append current or previous entry to file of unread papers
+named by variable `unread-bib-file'."
+   (interactive)
+   (mark-bib)
+   (if (get-file-buffer unread-bib-file)
+      (append-to-buffer (get-file-buffer unread-bib-file) (mark) (point))
+      (append-to-file (mark) (point) unread-bib-file)))
+
+
+(defvar capitalize-title-stop-words
+   (concat
+      "the\\|and\\|of\\|is\\|a\\|an\\|of\\|for\\|in\\|to\\|in\\|on\\|at\\|"
+      "by\\|with\\|that\\|its")
+   "Words not to be capitialized in a title (unless they're the first word
+in the title).")
+
+(defvar capitalize-title-stop-regexp
+   (concat "\\(" capitalize-title-stop-words "\\)\\(\\b\\|'\\)"))
+
+(defun capitalize-title-region (begin end)
+   "Like `capitalize-region', but don't capitalize stop words, except the first."
+   (interactive "r")
+   (let ((case-fold-search nil) (orig-syntax-table (syntax-table)))
+      (unwind-protect
+	 (save-restriction
+	    (set-syntax-table text-mode-syntax-table)
+	    (narrow-to-region begin end)
+	    (goto-char (point-min))
+	    (if (looking-at "[A-Z][a-z]*[A-Z]")
+	       (forward-word 1)
+	       (capitalize-word 1))
+	    (while (re-search-forward "\\<" nil t)
+	       (if (looking-at "[A-Z][a-z]*[A-Z]")
+		  (forward-word 1)
+		  (if (let ((case-fold-search t))
+			 (looking-at capitalize-title-stop-regexp))
+		     (downcase-word 1)
+		     (capitalize-word 1)))
+	       ))
+	 (set-syntax-table orig-syntax-table))))
+
+
+(defun capitalize-title (s)
+   "Like `capitalize', but don't capitalize stop words, except the first."
+   (save-excursion
+      (set-buffer (get-buffer-create "$$$Scratch$$$"))
+      (erase-buffer)
+      (insert s)
+      (capitalize-title-region (point-min) (point-max))
+      (buffer-string)))