Delete the directory, will try to resubmit later.

git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@117751 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 0 insertions, 3822 deletions

diff --git a/utils/emacs/README b/utils/emacs/README
deleted file mode 100644
index dae6cb3bc..000000000
--- a/utils/emacs/README
+++ /dev/null
@@ -1,10 +0,0 @@
-The lldb-enhanced gud.el is based on the emacs 22.3.1 version from Aquamacs 1.8c
-distribution.
-
-The gud-diffs.txt is the diff from the gud.el file from emacs 22.3.1.
-
-To use it, load the file from within emacs and type 'M-x lldb' to invoke lldb.
-
-The lldb-gud-window.tiff is a screen capture of the gud (with lldb) at work on
-Aquamacs distribution 2.1 by loading the gud.el in this directory and 'M-x lldb'
-on the ../../test/condition_break directory.
diff --git a/utils/emacs/gud-diffs.txt b/utils/emacs/gud-diffs.txt
deleted file mode 100644
index f4531cad9..000000000
--- a/utils/emacs/gud-diffs.txt
+++ /dev/null
@@ -1,250 +0,0 @@
---- /tmp/gud.el	2009-05-06 05:16:32.000000000 -0700
-+++ utils/emacs/gud.el	2010-10-29 16:41:53.000000000 -0700
-@@ -144,12 +144,12 @@
- 			       (display-graphic-p)
- 			       (fboundp 'x-show-tip))
- 		  :visible (memq gud-minor-mode
--				'(gdbmi gdba dbx sdb xdb pdb))
-+				'(lldb gdbmi gdba dbx sdb xdb pdb))
- 	          :button (:toggle . gud-tooltip-mode))
-     ([refresh]	"Refresh" . gud-refresh)
-     ([run]	menu-item "Run" gud-run
-                   :enable (not gud-running)
--		  :visible (memq gud-minor-mode '(gdbmi gdb dbx jdb)))
-+		  :visible (memq gud-minor-mode '(lldb gdbmi gdb dbx jdb)))
-     ([go]	menu-item (if gdb-active-process "Continue" "Run") gud-go
- 		  :visible (and (not gud-running)
- 				(eq gud-minor-mode 'gdba)))
-@@ -167,18 +167,18 @@
-     ([tbreak]	menu-item "Temporary Breakpoint" gud-tbreak
-                   :enable (not gud-running)
- 		  :visible (memq gud-minor-mode
--				'(gdbmi gdba gdb sdb xdb)))
-+				'(lldb gdbmi gdba gdb sdb xdb)))
-     ([break]	menu-item "Set Breakpoint" gud-break
-                   :enable (not gud-running)
- 		  :visible (gud-tool-bar-item-visible-no-fringe))
-     ([up]	menu-item "Up Stack" gud-up
- 		  :enable (not gud-running)
- 		  :visible (memq gud-minor-mode
--				 '(gdbmi gdba gdb dbx xdb jdb pdb)))
-+				 '(lldb gdbmi gdba gdb dbx xdb jdb pdb)))
-     ([down]	menu-item "Down Stack" gud-down
- 		  :enable (not gud-running)
- 		  :visible (memq gud-minor-mode
--				 '(gdbmi gdba gdb dbx xdb jdb pdb)))
-+				 '(lldb gdbmi gdba gdb dbx xdb jdb pdb)))
-     ([pp]	menu-item "Print S-expression" gud-pp
-                   :enable (and (not gud-running)
- 				  gdb-active-process)
-@@ -188,7 +188,7 @@
- 				(eq gud-minor-mode 'gdba)))
-     ([print*]	menu-item "Print Dereference" gud-pstar
-                   :enable (not gud-running)
--		  :visible (memq gud-minor-mode '(gdbmi gdba gdb)))
-+		  :visible (memq gud-minor-mode '(lldb gdbmi gdba gdb)))
-     ([print]	menu-item "Print Expression" gud-print
-                   :enable (not gud-running))
-     ([watch]	menu-item "Watch Expression" gud-watch
-@@ -197,13 +197,13 @@
-     ([finish]	menu-item "Finish Function" gud-finish
-                   :enable (not gud-running)
- 		  :visible (memq gud-minor-mode
--				 '(gdbmi gdba gdb xdb jdb pdb)))
-+				 '(lldb gdbmi gdba gdb xdb jdb pdb)))
-     ([stepi]	menu-item "Step Instruction" gud-stepi
-                   :enable (not gud-running)
--		  :visible (memq gud-minor-mode '(gdbmi gdba gdb dbx)))
-+		  :visible (memq gud-minor-mode '(lldb gdbmi gdba gdb dbx)))
-     ([nexti]	menu-item "Next Instruction" gud-nexti
-                   :enable (not gud-running)
--		  :visible (memq gud-minor-mode '(gdbmi gdba gdb dbx)))
-+		  :visible (memq gud-minor-mode '(lldb gdbmi gdba gdb dbx)))
-     ([step]	menu-item "Step Line" gud-step
-                   :enable (not gud-running))
-     ([next]	menu-item "Next Line" gud-next
-@@ -350,6 +350,7 @@
-   %l -- Number of current source line.
-   %e -- Text of the C lvalue or function-call expression surrounding point.
-   %a -- Text of the hexadecimal address surrounding point.
-+  %b -- Text of the most recently created breakpoint id.
-   %p -- Prefix argument to the command (if any) as a number.
-   %c -- Fully qualified class name derived from the expression
-         surrounding point (jdb only).
-@@ -930,6 +931,126 @@
- 
- 
- ;; ======================================================================
-+;; lldb functions
-+
-+;; History of argument lists passed to lldb.
-+(defvar gud-lldb-history nil)
-+
-+;; Keeps track of breakpoint created.  In the following case, the id is "1".
-+;; It is used to implement temporary breakpoint.
-+;; (lldb) b main.c:39
-+;; breakpoint set --file 'main.c' --line 39
-+;; Breakpoint created: 1: file ='main.c', line = 39, locations = 1
-+(defvar gud-breakpoint-id nil)
-+
-+(defun lldb-extract-breakpoint-id (string)
-+  ;; Search for "Breakpoint created: \\([^:\n]*\\):" pattern.
-+  (if (string-match "Breakpoint created: \\([^:\n]*\\):" string)
-+      (progn
-+        (setq gud-breakpoint-id (match-string 1 string))
-+        (message "breakpoint id: %s" gud-breakpoint-id)))
-+)
-+
-+(defun gud-lldb-marker-filter (string)
-+  (setq gud-marker-acc
-+	(if gud-marker-acc (concat gud-marker-acc string) string))
-+  (lldb-extract-breakpoint-id gud-marker-acc)
-+  (let (start)
-+    ;; Process all complete markers in this chunk
-+    (while (or
-+            ;; (lldb) r
-+            ;; Process 15408 launched: '/Volumes/data/lldb/svn/trunk/test/conditional_break/a.out' (x86_64)
-+            ;; (lldb) Process 15408 stopped
-+            ;; * thread #1: tid = 0x2e03, 0x0000000100000de8 a.out`c + 7 at main.c:39, stop reason = breakpoint 1.1, queue = com.apple.main-thread
-+            (string-match " at \\([^:\n]*\\):\\([0-9]*\\), stop reason = .*\n"
-+                          gud-marker-acc start)
-+            ;; (lldb) frame select -r 1
-+            ;; frame #1: 0x0000000100000e09 a.out`main + 25 at main.c:44
-+            (string-match "\nframe.* at \\([^:\n]*\\):\\([0-9]*\\)\n"
-+                           gud-marker-acc start))
-+      (setq gud-last-frame
-+            (cons (match-string 1 gud-marker-acc)
-+                  (string-to-number (match-string 2 gud-marker-acc)))
-+            start (match-end 0)))
-+
-+    ;; Search for the last incomplete line in this chunk
-+    (while (string-match "\n" gud-marker-acc start)
-+      (setq start (match-end 0)))
-+
-+    ;; If we have an incomplete line, store it in gud-marker-acc.
-+    (setq gud-marker-acc (substring gud-marker-acc (or start 0))))
-+  string)
-+
-+;; Keeps track of whether the Python lldb_oneshot_break function definition has
-+;; been exec'ed.
-+(defvar lldb-oneshot-break-defined nil)
-+
-+;;;###autoload
-+(defun lldb (command-line)
-+  "Run lldb on program FILE in buffer *gud-FILE*.
-+The directory containing FILE becomes the initial working directory
-+and source-file directory for your debugger."
-+  (interactive (list (gud-query-cmdline 'lldb)))
-+
-+  (gud-common-init command-line nil 'gud-lldb-marker-filter)
-+  (set (make-local-variable 'gud-minor-mode) 'lldb)
-+  (setq lldb-oneshot-break-defined nil)
-+
-+  (gud-def gud-lbreak "breakpoint list"
-+                      "l"    "List all breakpoints.")
-+  (gud-def gud-break  "breakpoint set -f %f -l %l"
-+                      "\C-b" "Set breakpoint at current line.")
-+  (gud-def gud-tbreak
-+	   (progn (gud-call "breakpoint set -f %f -l %l")
-+                  (sit-for 1)
-+                  (if (not lldb-oneshot-break-defined)
-+                      (progn
-+                        ;; The "\\n"'s are required to escape the newline chars
-+                        ;; passed to the lldb process.
-+                        (gud-call (concat "script exec \"def lldb_oneshot_break(frame, bp_loc):\\n"
-+                                                        "    target=frame.GetThread().GetProcess().GetTarget()\\n"
-+                                                        "    bp=bp_loc.GetBreakpoint()\\n"
-+                                                        "    print 'Deleting oneshot breakpoint:', bp\\n"
-+                                                        "    target.BreakpointDelete(bp.GetID())\""))
-+                        (sit-for 1)
-+                        ;; Set the flag since Python knows about the function def now.
-+                        (setq lldb-oneshot-break-defined t)))
-+                  (gud-call "breakpoint command add -p %b -o 'lldb_oneshot_break(frame, bp_loc)'"))
-+	              "\C-t" "Set temporary breakpoint at current line.")
-+  (gud-def gud-remove "breakpoint clear -f %f -l %l"
-+                      "\C-d" "Remove breakpoint at current line")
-+  (gud-def gud-step   "thread step-in"
-+                      "\C-s" "Step one source line with display.")
-+  (gud-def gud-stepi  "thread step-inst"
-+                      "\C-i" "Step one instruction with display.")
-+  (gud-def gud-next   "thread step-over"
-+                      "\C-n" "Step one line (skip functions).")
-+  (gud-def gud-nexti  "thread step-inst-over"
-+                      nil    "Step one instruction (skip functions).")
-+  (gud-def gud-cont   "process continue"
-+                      "\C-r" "Continue with display.")
-+  (gud-def gud-finish "thread step-out"
-+                      "\C-f" "Finish executing current function.")
-+  (gud-def gud-up     "frame select -r %p"
-+                      "<"    "Up 1 stack frame.")
-+  (gud-def gud-down   "frame select -r -%p"
-+                      ">"    "Down 1 stack frame.")
-+  (gud-def gud-print  "expression -- %e"
-+                      "\C-p" "Evaluate C expression at point.")
-+  (gud-def gud-pstar  "expression -- *%e"
-+                      nil    "Evaluate C dereferenced pointer expression at point.")
-+  (gud-def gud-run    "run"
-+                      nil    "Run the program.")
-+  (gud-def gud-stop-subjob    "process kill"
-+                      nil    "Stop the program.")
-+
-+  (setq comint-prompt-regexp  "\\(^\\|\n\\)\\*")
-+  (setq paragraph-start comint-prompt-regexp)
-+  (run-hooks 'lldb-mode-hook)
-+  )
-+
-+
-+;; ======================================================================
- ;; sdb functions
- 
- ;; History of argument lists passed to sdb.
-@@ -2372,9 +2493,10 @@
-   "Major mode for interacting with an inferior debugger process.
- 
-    You start it up with one of the commands M-x gdb, M-x sdb, M-x dbx,
--M-x perldb, M-x xdb, or M-x jdb.  Each entry point finishes by executing a
--hook; `gdb-mode-hook', `sdb-mode-hook', `dbx-mode-hook',
--`perldb-mode-hook', `xdb-mode-hook', or `jdb-mode-hook' respectively.
-+M-x perldb, M-x xdb, M-x jdb, or M-x lldb.  Each entry point finishes by
-+executing a hook; `gdb-mode-hook', `sdb-mode-hook', `dbx-mode-hook',
-+`perldb-mode-hook', `xdb-mode-hook', `jdb-mode-hook', or `lldb-mode-hook'
-+respectively.
- 
- After startup, the following commands are available in both the GUD
- interaction buffer and any source buffer GUD visits due to a breakpoint stop
-@@ -2404,7 +2526,7 @@
- except that the breakpoint is temporary; that is, it is removed when
- execution stops on it.
- 
--Under gdb, dbx, and xdb, \\[gud-up] pops up through an enclosing stack
-+Under gdb, dbx, xdb, and lldb, \\[gud-up] pops up through an enclosing stack
- frame.  \\[gud-down] drops back down through one.
- 
- If you are using gdb or xdb, \\[gud-finish] runs execution to the return from
-@@ -2724,7 +2846,7 @@
- 	result)
-     (while (and str
- 		(let ((case-fold-search nil))
--		  (string-match "\\([^%]*\\)%\\([adefFlpc]\\)" str)))
-+		  (string-match "\\([^%]*\\)%\\([abdefFlpc]\\)" str)))
-       (let ((key (string-to-char (match-string 2 str)))
- 	    subst)
- 	(cond
-@@ -2753,6 +2875,8 @@
- 	  (setq subst (gud-find-expr)))
- 	 ((eq key ?a)
- 	  (setq subst (gud-read-address)))
-+	 ((eq key ?b)
-+	  (setq subst gud-breakpoint-id))
- 	 ((eq key ?c)
- 	  (setq subst
-                 (gud-find-class
-@@ -3372,6 +3496,8 @@
- (defun gud-tooltip-print-command (expr)
-   "Return a suitable command to print the expression EXPR."
-   (case gud-minor-mode
-+        ; '-o' to print the objc object description if available
-+        (lldb (concat "expression -o -- " expr))
- 	(gdba (concat "server print " expr))
- 	((dbx gdbmi) (concat "print " expr))
- 	((xdb pdb) (concat "p " expr))
diff --git a/utils/emacs/gud.el b/utils/emacs/gud.el
deleted file mode 100644
index 2d5386994..000000000
--- a/utils/emacs/gud.el
+++ /dev/null
@@ -1,3562 +0,0 @@
-;;; gud.el --- Grand Unified Debugger mode for running GDB and other debuggers
-
-;; Author: Eric S. Raymond <esr@snark.thyrsus.com>
-;; Maintainer: FSF
-;; Keywords: unix, tools
-
-;; Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 2000, 2001, 2002, 2003,
-;;  2004, 2005, 2006, 2007, 2008 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 3, 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, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
-
-;;; Commentary:
-
-;; The ancestral gdb.el was by W. Schelter <wfs@rascal.ics.utexas.edu> It was
-;; later rewritten by rms.  Some ideas were due to Masanobu.  Grand
-;; Unification (sdb/dbx support) by Eric S. Raymond <esr@thyrsus.com> Barry
-;; Warsaw <bwarsaw@cen.com> hacked the mode to use comint.el.  Shane Hartman
-;; <shane@spr.com> added support for xdb (HPUX debugger).  Rick Sladkey
-;; <jrs@world.std.com> wrote the GDB command completion code.  Dave Love
-;; <d.love@dl.ac.uk> added the IRIX kluge, re-implemented the Mips-ish variant
-;; and added a menu. Brian D. Carlstrom <bdc@ai.mit.edu> combined the IRIX
-;; kluge with the gud-xdb-directories hack producing gud-dbx-directories.
-;; Derek L. Davies <ddavies@world.std.com> added support for jdb (Java
-;; debugger.)
-
-;;; Code:
-
-(eval-when-compile (require 'cl)) ; for case macro
-
-(require 'comint)
-
-(defvar gdb-active-process)
-(defvar gdb-define-alist)
-(defvar gdb-macro-info)
-(defvar gdb-server-prefix)
-(defvar gdb-show-changed-values)
-(defvar gdb-var-list)
-(defvar gdb-speedbar-auto-raise)
-(defvar tool-bar-map)
-
-;; ======================================================================
-;; GUD commands must be visible in C buffers visited by GUD
-
-(defgroup gud nil
-  "Grand Unified Debugger mode for gdb and other debuggers under Emacs.
-Supported debuggers include gdb, sdb, dbx, xdb, perldb, pdb (Python) and jdb."
-  :group 'unix
-  :group 'tools)
-
-
-(defcustom gud-key-prefix "\C-x\C-a"
-  "Prefix of all GUD commands valid in C buffers."
-  :type 'string
-  :group 'gud)
-
-(global-set-key (concat gud-key-prefix "\C-l") 'gud-refresh)
-(define-key ctl-x-map " " 'gud-break)	;; backward compatibility hack
-
-(defvar gud-marker-filter nil)
-(put 'gud-marker-filter 'permanent-local t)
-(defvar gud-find-file nil)
-(put 'gud-find-file 'permanent-local t)
-
-(defun gud-marker-filter (&rest args)
-  (apply gud-marker-filter args))
-
-(defvar gud-minor-mode nil)
-(put 'gud-minor-mode 'permanent-local t)
-
-(defvar gud-comint-buffer nil)
-
-(defvar gud-keep-buffer nil)
-
-(defun gud-symbol (sym &optional soft minor-mode)
-  "Return the symbol used for SYM in MINOR-MODE.
-MINOR-MODE defaults to `gud-minor-mode'.
-The symbol returned is `gud-<MINOR-MODE>-<SYM>'.
-If SOFT is non-nil, returns nil if the symbol doesn't already exist."
-  (unless (or minor-mode gud-minor-mode) (error "Gud internal error"))
-  (funcall (if soft 'intern-soft 'intern)
-	   (format "gud-%s-%s" (or minor-mode gud-minor-mode) sym)))
-
-(defun gud-val (sym &optional minor-mode)
-  "Return the value of `gud-symbol' SYM.  Default to nil."
-  (let ((sym (gud-symbol sym t minor-mode)))
-    (if (boundp sym) (symbol-value sym))))
-
-(defvar gud-running nil
-  "Non-nil if debugged program is running.
-Used to grey out relevant toolbar icons.")
-
-(defvar gdb-ready nil)
-
-;; Use existing Info buffer, if possible.
-(defun gud-goto-info ()
-  "Go to relevant Emacs info node."
-  (interactive)
-  (let ((same-window-regexps same-window-regexps)
-	(display-buffer-reuse-frames t))
-    (catch 'info-found
-      (walk-windows
-       '(lambda (window)
-	  (if (eq (window-buffer window) (get-buffer "*info*"))
-	      (progn
-		(setq same-window-regexps nil)
-		(throw 'info-found nil))))
-       nil 0)
-      (select-frame (make-frame)))
-    (if (memq gud-minor-mode '(gdbmi gdba))
-	(info "(emacs)GDB Graphical Interface")
-      (info "(emacs)Debuggers"))))
-
-(defun gud-tool-bar-item-visible-no-fringe ()
-  (not (or (eq (buffer-local-value 'major-mode (window-buffer)) 'speedbar-mode)
-	   (and (memq gud-minor-mode '(gdbmi gdba))
-		(> (car (window-fringes)) 0)))))
-
-(defun gud-stop-subjob ()
-  (interactive)
-  (with-current-buffer gud-comint-buffer
-    (if (string-equal gud-target-name "emacs")
-	(comint-stop-subjob)
-      (comint-interrupt-subjob))))
-
-(easy-mmode-defmap gud-menu-map
-  '(([help]     "Info" . gud-goto-info)
-    ([tooltips] menu-item "Show GUD tooltips" gud-tooltip-mode
-                  :enable (and (not emacs-basic-display)
-			       (display-graphic-p)
-			       (fboundp 'x-show-tip))
-		  :visible (memq gud-minor-mode
-				'(lldb gdbmi gdba dbx sdb xdb pdb))
-	          :button (:toggle . gud-tooltip-mode))
-    ([refresh]	"Refresh" . gud-refresh)
-    ([run]	menu-item "Run" gud-run
-                  :enable (not gud-running)
-		  :visible (memq gud-minor-mode '(lldb gdbmi gdb dbx jdb)))
-    ([go]	menu-item (if gdb-active-process "Continue" "Run") gud-go
-		  :visible (and (not gud-running)
-				(eq gud-minor-mode 'gdba)))
-    ([stop]	menu-item "Stop" gud-stop-subjob
-		  :visible (or (not (memq gud-minor-mode '(gdba pdb)))
-			       (and gud-running
-				    (eq gud-minor-mode 'gdba))))
-    ([until]	menu-item "Continue to selection" gud-until
-                  :enable (not gud-running)
-		  :visible (and (memq gud-minor-mode '(gdbmi gdba gdb perldb))
-				(gud-tool-bar-item-visible-no-fringe)))
-    ([remove]	menu-item "Remove Breakpoint" gud-remove
-                  :enable (not gud-running)
-		  :visible (gud-tool-bar-item-visible-no-fringe))
-    ([tbreak]	menu-item "Temporary Breakpoint" gud-tbreak
-                  :enable (not gud-running)
-		  :visible (memq gud-minor-mode
-				'(lldb gdbmi gdba gdb sdb xdb)))
-    ([break]	menu-item "Set Breakpoint" gud-break
-                  :enable (not gud-running)
-		  :visible (gud-tool-bar-item-visible-no-fringe))
-    ([up]	menu-item "Up Stack" gud-up
-		  :enable (not gud-running)
-		  :visible (memq gud-minor-mode
-				 '(lldb gdbmi gdba gdb dbx xdb jdb pdb)))
-    ([down]	menu-item "Down Stack" gud-down
-		  :enable (not gud-running)
-		  :visible (memq gud-minor-mode
-				 '(lldb gdbmi gdba gdb dbx xdb jdb pdb)))
-    ([pp]	menu-item "Print S-expression" gud-pp
-                  :enable (and (not gud-running)
-				  gdb-active-process)
-		  :visible (and (string-equal
-				 (buffer-local-value
-				  'gud-target-name gud-comint-buffer) "emacs")
-				(eq gud-minor-mode 'gdba)))
-    ([print*]	menu-item "Print Dereference" gud-pstar
-                  :enable (not gud-running)
-		  :visible (memq gud-minor-mode '(lldb gdbmi gdba gdb)))
-    ([print]	menu-item "Print Expression" gud-print
-                  :enable (not gud-running))
-    ([watch]	menu-item "Watch Expression" gud-watch
-		  :enable (not gud-running)
-	  	  :visible (memq gud-minor-mode '(gdbmi gdba)))
-    ([finish]	menu-item "Finish Function" gud-finish
-                  :enable (not gud-running)
-		  :visible (memq gud-minor-mode
-				 '(lldb gdbmi gdba gdb xdb jdb pdb)))
-    ([stepi]	menu-item "Step Instruction" gud-stepi
-                  :enable (not gud-running)
-		  :visible (memq gud-minor-mode '(lldb gdbmi gdba gdb dbx)))
-    ([nexti]	menu-item "Next Instruction" gud-nexti
-                  :enable (not gud-running)
-		  :visible (memq gud-minor-mode '(lldb gdbmi gdba gdb dbx)))
-    ([step]	menu-item "Step Line" gud-step
-                  :enable (not gud-running))
-    ([next]	menu-item "Next Line" gud-next
-                  :enable (not gud-running))
-    ([cont]	menu-item "Continue" gud-cont
-                  :enable (not gud-running)
-		  :visible (not (eq gud-minor-mode 'gdba))))
-  "Menu for `gud-mode'."
-  :name "Gud")
-
-(easy-mmode-defmap gud-minor-mode-map
-  (append
-     `(([menu-bar debug] . ("Gud" . ,gud-menu-map)))
-     ;; Get tool bar like functionality from the menu bar on a text only
-     ;; terminal.
-   (unless window-system
-     `(([menu-bar down]
-	. (,(propertize "down" 'face 'font-lock-doc-face) . gud-down))
-       ([menu-bar up]
-	. (,(propertize "up" 'face 'font-lock-doc-face) . gud-up))
-       ([menu-bar finish]
-	. (,(propertize "finish" 'face 'font-lock-doc-face) . gud-finish))
-       ([menu-bar step]
-	. (,(propertize "step" 'face 'font-lock-doc-face) . gud-step))
-       ([menu-bar next]
-	. (,(propertize "next" 'face 'font-lock-doc-face) . gud-next))
-       ([menu-bar until] menu-item
-	,(propertize "until" 'face 'font-lock-doc-face) gud-until
-		  :visible (memq gud-minor-mode '(gdbmi gdba gdb perldb)))
-       ([menu-bar cont] menu-item
-	,(propertize "cont" 'face 'font-lock-doc-face) gud-cont
-	:visible (not (eq gud-minor-mode 'gdba)))
-       ([menu-bar run] menu-item
-	,(propertize "run" 'face 'font-lock-doc-face) gud-run
-	:visible (memq gud-minor-mode '(gdbmi gdb dbx jdb)))
-       ([menu-bar go] menu-item
-	,(propertize " go " 'face 'font-lock-doc-face) gud-go
-	:visible (and (not gud-running)
-		      (eq gud-minor-mode 'gdba)))
-       ([menu-bar stop] menu-item
-	,(propertize "stop" 'face 'font-lock-doc-face) gud-stop-subjob
-	:visible (or gud-running
-		     (not (eq gud-minor-mode 'gdba))))
-       ([menu-bar print]
-	. (,(propertize "print" 'face 'font-lock-doc-face) . gud-print))
-       ([menu-bar tools] . undefined)
-       ([menu-bar buffer] . undefined)
-       ([menu-bar options] . undefined)
-       ([menu-bar edit] . undefined)
-       ([menu-bar file] . undefined))))
-  "Map used in visited files.")
-
-(let ((m (assq 'gud-minor-mode minor-mode-map-alist)))
-  (if m (setcdr m gud-minor-mode-map)
-    (push (cons 'gud-minor-mode gud-minor-mode-map) minor-mode-map-alist)))
-
-(defvar gud-mode-map
-  ;; Will inherit from comint-mode via define-derived-mode.
-  (make-sparse-keymap)
-  "`gud-mode' keymap.")
-
-(defvar gud-tool-bar-map
-  (if (display-graphic-p)
-      (let ((map (make-sparse-keymap)))
-	(dolist (x '((gud-break . "gud/break")
-		     (gud-remove . "gud/remove")
-		     (gud-print . "gud/print")
-		     (gud-pstar . "gud/pstar")
-		     (gud-pp . "gud/pp")
-		     (gud-watch . "gud/watch")
-		     (gud-run . "gud/run")
-		     (gud-go . "gud/go")
-		     (gud-stop-subjob . "gud/stop")
-		     (gud-cont . "gud/cont")
-		     (gud-until . "gud/until")
-		     (gud-next . "gud/next")
-		     (gud-step . "gud/step")
-		     (gud-finish . "gud/finish")
-		     (gud-nexti . "gud/nexti")
-		     (gud-stepi . "gud/stepi")
-		     (gud-up . "gud/up")
-		     (gud-down . "gud/down")
-		     (gud-goto-info . "info"))
-		   map)
-	  (tool-bar-local-item-from-menu
-	   (car x) (cdr x) map gud-minor-mode-map)))))
-
-(defun gud-file-name (f)
-  "Transform a relative file name to an absolute file name.
-Uses `gud-<MINOR-MODE>-directories' to find the source files."
-  (if (file-exists-p f) (expand-file-name f)
-    (let ((directories (gud-val 'directories))
-	  (result nil))
-      (while directories
-	(let ((path (expand-file-name f (car directories))))
-	  (if (file-exists-p path)
-	      (setq result path
-		    directories nil)))
-	(setq directories (cdr directories)))
-      result)))
-
-(defun gud-find-file (file)
-  ;; Don't get confused by double slashes in the name that comes from GDB.
-  (while (string-match "//+" file)
-    (setq file (replace-match "/" t t file)))
-  (let ((minor-mode gud-minor-mode)
-	(buf (funcall (or gud-find-file 'gud-file-name) file)))
-    (when (stringp buf)
-      (setq buf (and (file-readable-p buf) (find-file-noselect buf 'nowarn))))
-    (when buf
-      ;; Copy `gud-minor-mode' to the found buffer to turn on the menu.
-      (with-current-buffer buf
-	(set (make-local-variable 'gud-minor-mode) minor-mode)
-	(set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
-	(when (and gud-tooltip-mode
-		   (memq gud-minor-mode '(gdbmi gdba)))
-	  (make-local-variable 'gdb-define-alist)
-	  (unless  gdb-define-alist (gdb-create-define-alist))
-	  (add-hook 'after-save-hook 'gdb-create-define-alist nil t))
-	(make-local-variable 'gud-keep-buffer))
-      buf)))
-
-;; ======================================================================
-;; command definition
-
-;; This macro is used below to define some basic debugger interface commands.
-;; Of course you may use `gud-def' with any other debugger command, including
-;; user defined ones.
-
-;; A macro call like (gud-def FUNC CMD KEY DOC) expands to a form
-;; which defines FUNC to send the command CMD to the debugger, gives
-;; it the docstring DOC, and binds that function to KEY in the GUD
-;; major mode.  The function is also bound in the global keymap with the
-;; GUD prefix.
-
-(defmacro gud-def (func cmd key &optional doc)
-  "Define FUNC to be a command sending CMD and bound to KEY, with
-optional doc string DOC.  Certain %-escapes in the string arguments
-are interpreted specially if present.  These are:
-
-  %f -- Name (without directory) of current source file.
-  %F -- Name (without directory or extension) of current source file.
-  %d -- Directory of current source file.
-  %l -- Number of current source line.
-  %e -- Text of the C lvalue or function-call expression surrounding point.
-  %a -- Text of the hexadecimal address surrounding point.
-  %b -- Text of the most recently created breakpoint id.
-  %p -- Prefix argument to the command (if any) as a number.
-  %c -- Fully qualified class name derived from the expression
-        surrounding point (jdb only).
-
-  The `current' source file is the file of the current buffer (if
-we're in a C file) or the source file current at the last break or
-step (if we're in the GUD buffer).
-  The `current' line is that of the current buffer (if we're in a
-source file) or the source line number at the last break or step (if
-we're in the GUD buffer)."
-  `(progn
-     (defun ,func (arg)
-       ,@(if doc (list doc))
-       (interactive "p")
-       (if (not gud-running)
-	 ,(if (stringp cmd)
-	      `(gud-call ,cmd arg)
-	    cmd)))
-     ,(if key `(local-set-key ,(concat "\C-c" key) ',func))
-     ,(if key `(global-set-key (vconcat gud-key-prefix ,key) ',func))))
-
-;; Where gud-display-frame should put the debugging arrow; a cons of
-;; (filename . line-number).  This is set by the marker-filter, which scans
-;; the debugger's output for indications of the current program counter.
-(defvar gud-last-frame nil)
-
-;; Used by gud-refresh, which should cause gud-display-frame to redisplay
-;; the last frame, even if it's been called before and gud-last-frame has
-;; been set to nil.
-(defvar gud-last-last-frame nil)
-
-;; All debugger-specific information is collected here.
-;; Here's how it works, in case you ever need to add a debugger to the mode.
-;;
-;; Each entry must define the following at startup:
-;;
-;;<name>
-;; comint-prompt-regexp
-;; gud-<name>-massage-args
-;; gud-<name>-marker-filter
-;; gud-<name>-find-file
-;;
-;; The job of the massage-args method is to modify the given list of
-;; debugger arguments before running the debugger.
-;;
-;; The job of the marker-filter method is to detect file/line markers in
-;; strings and set the global gud-last-frame to indicate what display
-;; action (if any) should be triggered by the marker.  Note that only
-;; whatever the method *returns* is displayed in the buffer; thus, you
-;; can filter the debugger's output, interpreting some and passing on
-;; the rest.
-;;
-;; The job of the find-file method is to visit and return the buffer indicated
-;; by the car of gud-tag-frame.  This may be a file name, a tag name, or
-;; something else.
-
-;; ======================================================================
-;; speedbar support functions and variables.
-(eval-when-compile (require 'speedbar))	;For speedbar-with-attached-buffer.
-
-(defvar gud-last-speedbar-stackframe nil
-  "Description of the currently displayed GUD stack.
-The value t means that there is no stack, and we are in display-file mode.")
-
-(defvar gud-speedbar-key-map nil
-  "Keymap used when in the buffers display mode.")
-
-(defun gud-speedbar-item-info ()
-  "Display the data type of the watch expression element."
-  (let ((var (nth (- (line-number-at-pos (point)) 2) gdb-var-list)))
-    (if (nth 6 var)
-	(speedbar-message "%s: %s" (nth 6 var) (nth 3 var))
-      (speedbar-message "%s" (nth 3 var)))))
-
-(defun gud-install-speedbar-variables ()
-  "Install those variables used by speedbar to enhance gud/gdb."
-  (if gud-speedbar-key-map
-      nil
-    (setq gud-speedbar-key-map (speedbar-make-specialized-keymap))
-
-    (define-key gud-speedbar-key-map "j" 'speedbar-edit-line)
-    (define-key gud-speedbar-key-map "e" 'speedbar-edit-line)
-    (define-key gud-speedbar-key-map "\C-m" 'speedbar-edit-line)
-    (define-key gud-speedbar-key-map " " 'speedbar-toggle-line-expansion)
-    (define-key gud-speedbar-key-map "D" 'gdb-var-delete)
-    (define-key gud-speedbar-key-map "p" 'gud-pp))
-
-  (speedbar-add-expansion-list '("GUD" gud-speedbar-menu-items
-				 gud-speedbar-key-map
-				 gud-expansion-speedbar-buttons))
-
-  (add-to-list
-   'speedbar-mode-functions-list
-   '("GUD" (speedbar-item-info . gud-speedbar-item-info)
-     (speedbar-line-directory . ignore))))
-
-(defvar gud-speedbar-menu-items
-  '(["Jump to stack frame" speedbar-edit-line
-     :visible (not (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-		    '(gdbmi gdba)))]
-    ["Edit value" speedbar-edit-line
-     :visible (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-		    '(gdbmi gdba))]
-    ["Delete expression" gdb-var-delete
-     :visible (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-		    '(gdbmi gdba))]
-    ["Auto raise frame" gdb-speedbar-auto-raise
-     :style toggle :selected gdb-speedbar-auto-raise
-     :visible (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-		    '(gdbmi gdba))]
-    ("Output Format"
-     :visible (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-		    '(gdbmi gdba))
-     ["Binary" (gdb-var-set-format "binary") t]
-     ["Natural" (gdb-var-set-format  "natural") t]
-     ["Hexadecimal" (gdb-var-set-format "hexadecimal") t]))
-  "Additional menu items to add to the speedbar frame.")
-
-;; Make sure our special speedbar mode is loaded
-(if (featurep 'speedbar)
-    (gud-install-speedbar-variables)
-  (add-hook 'speedbar-load-hook 'gud-install-speedbar-variables))
-
-(defun gud-expansion-speedbar-buttons (directory zero)
-  "Wrapper for call to `speedbar-add-expansion-list'.
-DIRECTORY and ZERO are not used, but are required by the caller."
-  (gud-speedbar-buttons gud-comint-buffer))
-
-(defun gud-speedbar-buttons (buffer)
-  "Create a speedbar display based on the current state of GUD.
-If the GUD BUFFER is not running a supported debugger, then turn
-off the specialized speedbar mode.  BUFFER is not used, but is
-required by the caller."
-  (when (and gud-comint-buffer
-	     ;; gud-comint-buffer might be killed
-	     (buffer-name gud-comint-buffer))
-    (let* ((minor-mode (with-current-buffer buffer gud-minor-mode))
-	  (window (get-buffer-window (current-buffer) 0))
-	  (start (window-start window))
-	  (p (window-point window)))
-      (cond
-       ((memq minor-mode '(gdbmi gdba))
-	(erase-buffer)
-	(insert "Watch Expressions:\n")
-	(if gdb-speedbar-auto-raise
-	    (raise-frame speedbar-frame))
-	(let ((var-list gdb-var-list) parent)
-	  (while var-list
-	    (let* (char (depth 0) (start 0) (var (car var-list))
-			(varnum (car var)) (expr (nth 1 var))
-			(type (if (nth 3 var) (nth 3 var) " "))
-			(value (nth 4 var)) (status (nth 5 var)))
-	      (put-text-property
-	       0 (length expr) 'face font-lock-variable-name-face expr)
-	      (put-text-property
-	       0 (length type) 'face font-lock-type-face type)
-	      (while (string-match "\\." varnum start)
-		(setq depth (1+ depth)
-		      start (1+ (match-beginning 0))))
-	      (if (eq depth 0) (setq parent nil))
-	      (if (or (equal (nth 2 var) "0")
-		      (and (equal (nth 2 var) "1")
-			   (string-match "char \\*$" type)))
-		  (speedbar-make-tag-line
-		   'bracket ?? nil nil
-		   (concat expr "\t" value)
-		   (if (or parent (eq status 'out-of-scope))
-		       nil 'gdb-edit-value)
-		   nil
-		   (if gdb-show-changed-values
-		       (or parent (case status
-				    (changed 'font-lock-warning-face)
-				    (out-of-scope 'shadow)
-				    (t t)))
-		     t)
-		   depth)
-		(if (eq status 'out-of-scope) (setq parent 'shadow))
-		(if (and (nth 1 var-list)
-			 (string-match (concat varnum "\\.")
-				       (car (nth 1 var-list))))
-		    (setq char ?-)
-		  (setq char ?+))
-		(if (string-match "\\*$\\|\\*&$" type)
-		    (speedbar-make-tag-line
-		     'bracket char
-		     'gdb-speedbar-expand-node varnum
-		     (concat expr "\t" type "\t" value)
-		     (if (or parent (eq status 'out-of-scope))
-			 nil 'gdb-edit-value)
-		     nil
-		     (if gdb-show-changed-values
-			 (or parent (case status
-				      (changed 'font-lock-warning-face)
-				      (out-of-scope 'shadow)
-				      (t t)))
-		       t)
-		     depth)
-		  (speedbar-make-tag-line
-		   'bracket char
-		   'gdb-speedbar-expand-node varnum
-		   (concat expr "\t" type)
-		   nil nil
-		   (if (and (or parent status) gdb-show-changed-values)
-		       'shadow t)
-		   depth))))
-	    (setq var-list (cdr var-list)))))
-       (t (unless (and (save-excursion
-			 (goto-char (point-min))
-			 (looking-at "Current Stack:"))
-		       (equal gud-last-last-frame gud-last-speedbar-stackframe))
-	    (let ((gud-frame-list
-	    (cond ((eq minor-mode 'gdb)
-		   (gud-gdb-get-stackframe buffer))
-		  ;; Add more debuggers here!
-		  (t (speedbar-remove-localized-speedbar-support buffer)
-		     nil))))
-	      (erase-buffer)
-	      (if (not gud-frame-list)
-		  (insert "No Stack frames\n")
-		(insert "Current Stack:\n"))
-	      (dolist (frame gud-frame-list)
-		(insert (nth 1 frame) ":\n")
-		(if (= (length frame) 2)
-		(progn
-		  (speedbar-insert-button (car frame)
-					  'speedbar-directory-face
-					  nil nil nil t))
-		(speedbar-insert-button
-		 (car frame)
-		 'speedbar-file-face
-		 'speedbar-highlight-face
-		 (cond ((memq minor-mode '(gdbmi gdba gdb))
-			'gud-gdb-goto-stackframe)
-		       (t (error "Should never be here")))
-		 frame t))))
-	    (setq gud-last-speedbar-stackframe gud-last-last-frame))))
-      (set-window-start window start)
-      (set-window-point window p))))
-
-
-;; ======================================================================
-;; gdb functions
-
-;; History of argument lists passed to gdb.
-(defvar gud-gdb-history nil)
-
-(defcustom gud-gud-gdb-command-name "gdb --fullname"
-  "Default command to run an executable under GDB in text command mode.
-The option \"--fullname\" must be included in this value."
-   :type 'string
-   :group 'gud)
-
-(defvar gud-gdb-marker-regexp
-  ;; This used to use path-separator instead of ":";
-  ;; however, we found that on both Windows 32 and MSDOS
-  ;; a colon is correct here.
-  (concat "\032\032\\(.:?[^" ":" "\n]*\\)" ":"
-	  "\\([0-9]*\\)" ":" ".*\n"))
-
-;; There's no guarantee that Emacs will hand the filter the entire
-;; marker at once; it could be broken up across several strings.  We
-;; might even receive a big chunk with several markers in it.  If we
-;; receive a chunk of text which looks like it might contain the
-;; beginning of a marker, we save it here between calls to the
-;; filter.
-(defvar gud-marker-acc "")
-(make-variable-buffer-local 'gud-marker-acc)
-
-(defun gud-gdb-marker-filter (string)
-  (setq gud-marker-acc (concat gud-marker-acc string))
-  (let ((output ""))
-
-    ;; Process all the complete markers in this chunk.
-    (while (string-match gud-gdb-marker-regexp gud-marker-acc)
-      (setq
-
-       ;; Extract the frame position from the marker.
-       gud-last-frame (cons (match-string 1 gud-marker-acc)
-			    (string-to-number (match-string 2 gud-marker-acc)))
-
-       ;; Append any text before the marker to the output we're going
-       ;; to return - we don't include the marker in this text.
-       output (concat output
-		      (substring gud-marker-acc 0 (match-beginning 0)))
-
-       ;; Set the accumulator to the remaining text.
-       gud-marker-acc (substring gud-marker-acc (match-end 0))))
-
-    ;; Check for annotations and change gud-minor-mode to 'gdba if
-    ;; they are found.
-    (while (string-match "\n\032\032\\(.*\\)\n" gud-marker-acc)
-      (let ((match (match-string 1 gud-marker-acc)))
-
-	(setq
-	 ;; Append any text before the marker to the output we're going
-	 ;; to return - we don't include the marker in this text.
-	 output (concat output
-			(substring gud-marker-acc 0 (match-beginning 0)))
-
-	 ;; Set the accumulator to the remaining text.
-
-	 gud-marker-acc (substring gud-marker-acc (match-end 0)))))
-
-    ;; Does the remaining text look like it might end with the
-    ;; beginning of another marker?  If it does, then keep it in
-    ;; gud-marker-acc until we receive the rest of it.  Since we
-    ;; know the full marker regexp above failed, it's pretty simple to
-    ;; test for marker starts.
-    (if (string-match "\n\\(\032.*\\)?\\'" gud-marker-acc)
-	(progn
-	  ;; Everything before the potential marker start can be output.
-	  (setq output (concat output (substring gud-marker-acc
-						 0 (match-beginning 0))))
-
-	  ;; Everything after, we save, to combine with later input.
-	  (setq gud-marker-acc
-		(substring gud-marker-acc (match-beginning 0))))
-
-      (setq output (concat output gud-marker-acc)
-	    gud-marker-acc ""))
-
-    output))
-
-(easy-mmode-defmap gud-minibuffer-local-map
-  '(("\C-i" . comint-dynamic-complete-filename))
-  "Keymap for minibuffer prompting of gud startup command."
-  :inherit minibuffer-local-map)
-
-(defun gud-query-cmdline (minor-mode &optional init)
-  (let* ((hist-sym (gud-symbol 'history nil minor-mode))
-	 (cmd-name (gud-val 'command-name minor-mode)))
-    (unless (boundp hist-sym) (set hist-sym nil))
-    (read-from-minibuffer
-     (format "Run %s (like this): " minor-mode)
-     (or (car-safe (symbol-value hist-sym))
-	 (concat (or cmd-name (symbol-name minor-mode))
-		 " "
-		 (or init
-		     (let ((file nil))
-		       (dolist (f (directory-files default-directory) file)
-			 (if (and (file-executable-p f)
-				  (not (file-directory-p f))
-				  (or (not file)
-				      (file-newer-than-file-p f file)))
-			     (setq file f)))))))
-     gud-minibuffer-local-map nil
-     hist-sym)))
-
-(defvar gdb-first-prompt t)
-
-(defvar gud-filter-pending-text nil
-  "Non-nil means this is text that has been saved for later in `gud-filter'.")
-
-;; The old gdb command (text command mode).  The new one is in gdb-ui.el.
-;;;###autoload
-(defun gud-gdb (command-line)
-  "Run gdb on program FILE in buffer *gud-FILE*.
-The directory containing FILE becomes the initial working
-directory and source-file directory for your debugger."
-  (interactive (list (gud-query-cmdline 'gud-gdb)))
-
-  (when (and gud-comint-buffer
-	   (buffer-name gud-comint-buffer)
-	   (get-buffer-process gud-comint-buffer)
-	   (with-current-buffer gud-comint-buffer (eq gud-minor-mode 'gdba)))
-	(gdb-restore-windows)
-	(error
-	 "Multiple debugging requires restarting in text command mode"))
-
-  (gud-common-init command-line nil 'gud-gdb-marker-filter)
-  (set (make-local-variable 'gud-minor-mode) 'gdb)
-
-  (gud-def gud-break  "break %f:%l"  "\C-b" "Set breakpoint at current line.")
-  (gud-def gud-tbreak "tbreak %f:%l" "\C-t"
-	   "Set temporary breakpoint at current line.")
-  (gud-def gud-remove "clear %f:%l" "\C-d" "Remove breakpoint at current line")
-  (gud-def gud-step   "step %p"     "\C-s" "Step one source line with display.")
-  (gud-def gud-stepi  "stepi %p"    "\C-i" "Step one instruction with display.")
-  (gud-def gud-next   "next %p"     "\C-n" "Step one line (skip functions).")
-  (gud-def gud-nexti  "nexti %p" nil   "Step one instruction (skip functions).")
-  (gud-def gud-cont   "cont"     "\C-r" "Continue with display.")
-  (gud-def gud-finish "finish"   "\C-f" "Finish executing current function.")
-  (gud-def gud-jump
-	   (progn (gud-call "tbreak %f:%l") (gud-call "jump %f:%l"))
-	   "\C-j" "Set execution address to current line.")
-
-  (gud-def gud-up     "up %p"     "<" "Up N stack frames (numeric arg).")
-  (gud-def gud-down   "down %p"   ">" "Down N stack frames (numeric arg).")
-  (gud-def gud-print  "print %e"  "\C-p" "Evaluate C expression at point.")
-  (gud-def gud-pstar  "print* %e" nil
-	   "Evaluate C dereferenced pointer expression at point.")
-
-  ;; For debugging Emacs only.
-  (gud-def gud-pv "pv1 %e"      "\C-v" "Print the value of the lisp variable.")
-
-  (gud-def gud-until  "until %l" "\C-u" "Continue to current line.")
-  (gud-def gud-run    "run"	 nil    "Run the program.")
-
-  (local-set-key "\C-i" 'gud-gdb-complete-command)
-  (setq comint-prompt-regexp "^(.*gdb[+]?) *")
-  (setq paragraph-start comint-prompt-regexp)
-  (setq gdb-first-prompt t)
-  (setq gud-running nil)
-  (setq gdb-ready nil)
-  (setq gud-filter-pending-text nil)
-  (run-hooks 'gud-gdb-mode-hook))
-
-;; One of the nice features of GDB is its impressive support for
-;; context-sensitive command completion.  We preserve that feature
-;; in the GUD buffer by using a GDB command designed just for Emacs.
-
-;; The completion process filter indicates when it is finished.
-(defvar gud-gdb-fetch-lines-in-progress)
-
-;; Since output may arrive in fragments we accumulate partials strings here.
-(defvar gud-gdb-fetch-lines-string)
-
-;; We need to know how much of the completion to chop off.
-(defvar gud-gdb-fetch-lines-break)
-
-;; The completion list is constructed by the process filter.
-(defvar gud-gdb-fetched-lines)
-
-(defun gud-gdb-complete-command (&optional command a b)
-  "Perform completion on the GDB command preceding point.
-This is implemented using the GDB `complete' command which isn't
-available with older versions of GDB."
-  (interactive)
-  (if command
-      ;; Used by gud-watch in mini-buffer.
-      (setq command (concat "p " command))
-    ;; Used in GUD buffer.
-    (let ((end (point)))
-      (setq command (buffer-substring (comint-line-beginning-position) end))))
-  (let* ((command-word
-	  ;; Find the word break.  This match will always succeed.
-	  (and (string-match "\\(\\`\\| \\)\\([^ ]*\\)\\'" command)
-	       (substring command (match-beginning 2))))
-	 (complete-list
-	  (gud-gdb-run-command-fetch-lines (concat "complete " command)
-					   (current-buffer)
-					   ;; From string-match above.
-					   (match-beginning 2))))
-    ;; Protect against old versions of GDB.
-    (and complete-list
-	 (string-match "^Undefined command: \"complete\"" (car complete-list))
-	 (error "This version of GDB doesn't support the `complete' command"))
-    ;; Sort the list like readline.
-    (setq complete-list (sort complete-list (function string-lessp)))
-    ;; Remove duplicates.
-    (let ((first complete-list)
-	  (second (cdr complete-list)))
-      (while second
-	(if (string-equal (car first) (car second))
-	    (setcdr first (setq second (cdr second)))
-	  (setq first second
-		second (cdr second)))))
-    ;; Add a trailing single quote if there is a unique completion
-    ;; and it contains an odd number of unquoted single quotes.
-    (and (= (length complete-list) 1)
-	 (let ((str (car complete-list))
-	       (pos 0)
-	       (count 0))
-	   (while (string-match "\\([^'\\]\\|\\\\'\\)*'" str pos)
-	     (setq count (1+ count)
-		   pos (match-end 0)))
-	   (and (= (mod count 2) 1)
-		(setq complete-list (list (concat str "'"))))))
-    ;; Let comint handle the rest.
-    (comint-dynamic-simple-complete command-word complete-list)))
-
-;; The completion process filter is installed temporarily to slurp the
-;; output of GDB up to the next prompt and build the completion list.
-(defun gud-gdb-fetch-lines-filter (string filter)
-  "Filter used to read the list of lines output by a command.
-STRING is the output to filter.
-It is passed through FILTER before we look at it."
-  (setq string (funcall filter string))
-  (setq string (concat gud-gdb-fetch-lines-string string))
-  (while (string-match "\n" string)
-    (push (substring string gud-gdb-fetch-lines-break (match-beginning 0))
-	  gud-gdb-fetched-lines)
-    (setq string (substring string (match-end 0))))
-  (if (string-match comint-prompt-regexp string)
-      (progn
-	(setq gud-gdb-fetch-lines-in-progress nil)
-	string)
-    (progn
-      (setq gud-gdb-fetch-lines-string string)
-      "")))
-
-;; gdb speedbar functions
-
-(defun gud-gdb-goto-stackframe (text token indent)
-  "Goto the stackframe described by TEXT, TOKEN, and INDENT."
-  (speedbar-with-attached-buffer
-   (gud-basic-call (concat "server frame " (nth 1 token)))
-   (sit-for 1)))
-
-(defvar gud-gdb-fetched-stack-frame nil
-  "Stack frames we are fetching from GDB.")
-
-;(defun gud-gdb-get-scope-data (text token indent)
-;  ;; checkdoc-params: (indent)
-;  "Fetch data associated with a stack frame, and expand/contract it.
-;Data to do this is retrieved from TEXT and TOKEN."
-;  (let ((args nil) (scope nil))
-;    (gud-gdb-run-command-fetch-lines "info args")
-;
-;    (gud-gdb-run-command-fetch-lines "info local")
-;
-;    ))
-
-(defun gud-gdb-get-stackframe (buffer)
-  "Extract the current stack frame out of the GUD GDB BUFFER."
-  (let ((newlst nil)
-	(fetched-stack-frame-list
-	 (gud-gdb-run-command-fetch-lines "server backtrace" buffer)))
-    (if (and (car fetched-stack-frame-list)
-	     (string-match "No stack" (car fetched-stack-frame-list)))
-	;; Go into some other mode???
-	nil
-      (dolist (e fetched-stack-frame-list)
-	(let ((name nil) (num nil))
-	  (if (not (or
-		    (string-match "^#\\([0-9]+\\) +[0-9a-fx]+ in \\([:0-9a-zA-Z_]+\\) (" e)
-		    (string-match "^#\\([0-9]+\\) +\\([:0-9a-zA-Z_]+\\) (" e)))
-	      (if (not (string-match
-			"at \\([-0-9a-zA-Z_.]+\\):\\([0-9]+\\)$" e))
-		  nil
-		(setcar newlst
-			(list (nth 0 (car newlst))
-			      (nth 1 (car newlst))
-			      (match-string 1 e)
-			      (match-string 2 e))))
-	    (setq num (match-string 1 e)
-		  name (match-string 2 e))
-	    (setq newlst
-		  (cons
-		   (if (string-match
-			"at \\([-0-9a-zA-Z_.]+\\):\\([0-9]+\\)$" e)
-		       (list name num (match-string 1 e)
-			     (match-string 2 e))
-		     (list name num))
-		   newlst)))))
-      (nreverse newlst))))
-
-;(defun gud-gdb-selected-frame-info (buffer)
-;  "Learn GDB information for the currently selected stack frame in BUFFER."
-;  )
-
-(defun gud-gdb-run-command-fetch-lines (command buffer &optional skip)
-  "Run COMMAND, and return the list of lines it outputs.
-BUFFER is the current buffer which may be the GUD buffer in which to run.
-SKIP is the number of chars to skip on each line, it defaults to 0."
-  (with-current-buffer gud-comint-buffer
-    (if (and (eq gud-comint-buffer buffer)
-	     (save-excursion
-	       (goto-char (point-max))
-	       (forward-line 0)
-	       (not (looking-at comint-prompt-regexp))))
-	nil
-      ;; Much of this copied from GDB complete, but I'm grabbing the stack
-      ;; frame instead.
-      (let ((gud-gdb-fetch-lines-in-progress t)
-	    (gud-gdb-fetched-lines nil)
-	    (gud-gdb-fetch-lines-string nil)
-	    (gud-gdb-fetch-lines-break (or skip 0))
-	    (gud-marker-filter
-	     `(lambda (string)
-		(gud-gdb-fetch-lines-filter string ',gud-marker-filter))))
-	;; Issue the command to GDB.
-	(gud-basic-call command)
-	;; Slurp the output.
-	(while gud-gdb-fetch-lines-in-progress
-	  (accept-process-output (get-buffer-process gud-comint-buffer)))
-	(nreverse gud-gdb-fetched-lines)))))
-
-
-;; ======================================================================
-;; lldb functions
-
-;; History of argument lists passed to lldb.
-(defvar gud-lldb-history nil)
-
-;; Keeps track of breakpoint created.  In the following case, the id is "1".
-;; It is used to implement temporary breakpoint.
-;; (lldb) b main.c:39
-;; breakpoint set --file 'main.c' --line 39
-;; Breakpoint created: 1: file ='main.c', line = 39, locations = 1
-(defvar gud-breakpoint-id nil)
-
-(defun lldb-extract-breakpoint-id (string)
-  ;; Search for "Breakpoint created: \\([^:\n]*\\):" pattern.
-  (if (string-match "Breakpoint created: \\([^:\n]*\\):" string)
-      (progn
-        (setq gud-breakpoint-id (match-string 1 string))
-        (message "breakpoint id: %s" gud-breakpoint-id)))
-)
-
-(defun gud-lldb-marker-filter (string)
-  (setq gud-marker-acc
-	(if gud-marker-acc (concat gud-marker-acc string) string))
-  (lldb-extract-breakpoint-id gud-marker-acc)
-  (let (start)
-    ;; Process all complete markers in this chunk
-    (while (or
-            ;; (lldb) r
-            ;; Process 15408 launched: '/Volumes/data/lldb/svn/trunk/test/conditional_break/a.out' (x86_64)
-            ;; (lldb) Process 15408 stopped
-            ;; * thread #1: tid = 0x2e03, 0x0000000100000de8 a.out`c + 7 at main.c:39, stop reason = breakpoint 1.1, queue = com.apple.main-thread
-            (string-match " at \\([^:\n]*\\):\\([0-9]*\\), stop reason = .*\n"
-                          gud-marker-acc start)
-            ;; (lldb) frame select -r 1
-            ;; frame #1: 0x0000000100000e09 a.out`main + 25 at main.c:44
-            (string-match "\nframe.* at \\([^:\n]*\\):\\([0-9]*\\)\n"
-                           gud-marker-acc start))
-      (setq gud-last-frame
-            (cons (match-string 1 gud-marker-acc)
-                  (string-to-number (match-string 2 gud-marker-acc)))
-            start (match-end 0)))
-
-    ;; Search for the last incomplete line in this chunk
-    (while (string-match "\n" gud-marker-acc start)
-      (setq start (match-end 0)))
-
-    ;; If we have an incomplete line, store it in gud-marker-acc.
-    (setq gud-marker-acc (substring gud-marker-acc (or start 0))))
-  string)
-
-;; Keeps track of whether the Python lldb_oneshot_break function definition has
-;; been exec'ed.
-(defvar lldb-oneshot-break-defined nil)
-
-;;;###autoload
-(defun lldb (command-line)
-  "Run lldb on program FILE in buffer *gud-FILE*.
-The directory containing FILE becomes the initial working directory
-and source-file directory for your debugger."
-  (interactive (list (gud-query-cmdline 'lldb)))
-
-  (gud-common-init command-line nil 'gud-lldb-marker-filter)
-  (set (make-local-variable 'gud-minor-mode) 'lldb)
-  (setq lldb-oneshot-break-defined nil)
-
-  (gud-def gud-lbreak "breakpoint list"
-                      "l"    "List all breakpoints.")
-  (gud-def gud-break  "breakpoint set -f %f -l %l"
-                      "\C-b" "Set breakpoint at current line.")
-  (gud-def gud-tbreak
-	   (progn (gud-call "breakpoint set -f %f -l %l")
-                  (sit-for 1)
-                  (if (not lldb-oneshot-break-defined)
-                      (progn
-                        ;; The "\\n"'s are required to escape the newline chars
-                        ;; passed to the lldb process.
-                        (gud-call (concat "script exec \"def lldb_oneshot_break(frame, bp_loc):\\n"
-                                                        "    target=frame.GetThread().GetProcess().GetTarget()\\n"
-                                                        "    bp=bp_loc.GetBreakpoint()\\n"
-                                                        "    print 'Deleting oneshot breakpoint:', bp\\n"
-                                                        "    target.BreakpointDelete(bp.GetID())\""))
-                        (sit-for 1)
-                        ;; Set the flag since Python knows about the function def now.
-                        (setq lldb-oneshot-break-defined t)))
-                  (gud-call "breakpoint command add -p %b -o 'lldb_oneshot_break(frame, bp_loc)'"))
-	              "\C-t" "Set temporary breakpoint at current line.")
-  (gud-def gud-remove "breakpoint clear -f %f -l %l"
-                      "\C-d" "Remove breakpoint at current line")
-  (gud-def gud-step   "thread step-in"
-                      "\C-s" "Step one source line with display.")
-  (gud-def gud-stepi  "thread step-inst"
-                      "\C-i" "Step one instruction with display.")
-  (gud-def gud-next   "thread step-over"
-                      "\C-n" "Step one line (skip functions).")
-  (gud-def gud-nexti  "thread step-inst-over"
-                      nil    "Step one instruction (skip functions).")
-  (gud-def gud-cont   "process continue"
-                      "\C-r" "Continue with display.")
-  (gud-def gud-finish "thread step-out"
-                      "\C-f" "Finish executing current function.")
-  (gud-def gud-up     "frame select -r %p"
-                      "<"    "Up 1 stack frame.")
-  (gud-def gud-down   "frame select -r -%p"
-                      ">"    "Down 1 stack frame.")
-  (gud-def gud-print  "expression -- %e"
-                      "\C-p" "Evaluate C expression at point.")
-  (gud-def gud-pstar  "expression -- *%e"
-                      nil    "Evaluate C dereferenced pointer expression at point.")
-  (gud-def gud-run    "run"
-                      nil    "Run the program.")
-  (gud-def gud-stop-subjob    "process kill"
-                      nil    "Stop the program.")
-
-  (setq comint-prompt-regexp  "\\(^\\|\n\\)\\*")
-  (setq paragraph-start comint-prompt-regexp)
-  (run-hooks 'lldb-mode-hook)
-  )
-
-
-;; ======================================================================
-;; sdb functions
-
-;; History of argument lists passed to sdb.
-(defvar gud-sdb-history nil)
-
-(defvar gud-sdb-needs-tags (not (file-exists-p "/var"))
-  "If nil, we're on a System V Release 4 and don't need the tags hack.")
-
-(defvar gud-sdb-lastfile nil)
-
-(defun gud-sdb-marker-filter (string)
-  (setq gud-marker-acc
-	(if gud-marker-acc (concat gud-marker-acc string) string))
-  (let (start)
-    ;; Process all complete markers in this chunk
-    (while
-	(cond
-	 ;; System V Release 3.2 uses this format
-	 ((string-match "\\(^\\|\n\\)\\*?\\(0x\\w* in \\)?\\([^:\n]*\\):\\([0-9]*\\):.*\n"
-			gud-marker-acc start)
-	  (setq gud-last-frame
-		(cons (match-string 3 gud-marker-acc)
-		      (string-to-number (match-string 4 gud-marker-acc)))))
-	 ;; System V Release 4.0 quite often clumps two lines together
-	 ((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n\\([0-9]+\\):"
-			gud-marker-acc start)
-	  (setq gud-sdb-lastfile (match-string 2 gud-marker-acc))
-	  (setq gud-last-frame
-		(cons gud-sdb-lastfile
-		      (string-to-number (match-string 3 gud-marker-acc)))))
-	 ;; System V Release 4.0
-	 ((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n"
-			gud-marker-acc start)
-	  (setq gud-sdb-lastfile (match-string 2 gud-marker-acc)))
-	 ((and gud-sdb-lastfile (string-match "^\\([0-9]+\\):"
-					      gud-marker-acc start))
-	       (setq gud-last-frame
-		     (cons gud-sdb-lastfile
-			   (string-to-number (match-string 1 gud-marker-acc)))))
-	 (t
-	  (setq gud-sdb-lastfile nil)))
-      (setq start (match-end 0)))
-
-    ;; Search for the last incomplete line in this chunk
-    (while (string-match "\n" gud-marker-acc start)
-      (setq start (match-end 0)))
-
-    ;; If we have an incomplete line, store it in gud-marker-acc.
-    (setq gud-marker-acc (substring gud-marker-acc (or start 0))))
-  string)
-
-(defun gud-sdb-find-file (f)
-  (if gud-sdb-needs-tags (find-tag-noselect f) (find-file-noselect f)))
-
-;;;###autoload
-(defun sdb (command-line)
-  "Run sdb on program FILE in buffer *gud-FILE*.
-The directory containing FILE becomes the initial working directory
-and source-file directory for your debugger."
-  (interactive (list (gud-query-cmdline 'sdb)))
-
-  (if gud-sdb-needs-tags (require 'etags))
-  (if (and gud-sdb-needs-tags
-	   (not (and (boundp 'tags-file-name)
-		     (stringp tags-file-name)
-		     (file-exists-p tags-file-name))))
-      (error "The sdb support requires a valid tags table to work"))
-
-  (gud-common-init command-line nil 'gud-sdb-marker-filter 'gud-sdb-find-file)
-  (set (make-local-variable 'gud-minor-mode) 'sdb)
-
-  (gud-def gud-break  "%l b" "\C-b"   "Set breakpoint at current line.")
-  (gud-def gud-tbreak "%l c" "\C-t"   "Set temporary breakpoint at current line.")
-  (gud-def gud-remove "%l d" "\C-d"   "Remove breakpoint at current line")
-  (gud-def gud-step   "s %p" "\C-s"   "Step one source line with display.")
-  (gud-def gud-stepi  "i %p" "\C-i"   "Step one instruction with display.")
-  (gud-def gud-next   "S %p" "\C-n"   "Step one line (skip functions).")
-  (gud-def gud-cont   "c"    "\C-r"   "Continue with display.")
-  (gud-def gud-print  "%e/"  "\C-p"   "Evaluate C expression at point.")
-
-  (setq comint-prompt-regexp  "\\(^\\|\n\\)\\*")
-  (setq paragraph-start comint-prompt-regexp)
-  (run-hooks 'sdb-mode-hook)
-  )
-
-;; ======================================================================
-;; dbx functions
-
-;; History of argument lists passed to dbx.
-(defvar gud-dbx-history nil)
-
-(defcustom gud-dbx-directories nil
-  "*A list of directories that dbx should search for source code.
-If nil, only source files in the program directory
-will be known to dbx.
-
-The file names should be absolute, or relative to the directory
-containing the executable being debugged."
-  :type '(choice (const :tag "Current Directory" nil)
-		 (repeat :value ("")
-			 directory))
-  :group 'gud)
-
-(defun gud-dbx-massage-args (file args)
-  (nconc (let ((directories gud-dbx-directories)
-	       (result nil))
-	   (while directories
-	     (setq result (cons (car directories) (cons "-I" result)))
-	     (setq directories (cdr directories)))
-	   (nreverse result))
-	 args))
-
-(defun gud-dbx-marker-filter (string)
-  (setq gud-marker-acc (if gud-marker-acc (concat gud-marker-acc string) string))
-
-  (let (start)
-    ;; Process all complete markers in this chunk.
-    (while (or (string-match
-		"stopped in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\""
-		gud-marker-acc start)
-	       (string-match
-		"signal .* in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\""
-		gud-marker-acc start))
-      (setq gud-last-frame
-	    (cons (match-string 2 gud-marker-acc)
-		  (string-to-number (match-string 1 gud-marker-acc)))
-	    start (match-end 0)))
-
-    ;; Search for the last incomplete line in this chunk
-    (while (string-match "\n" gud-marker-acc start)
-      (setq start (match-end 0)))
-
-    ;; If the incomplete line APPEARS to begin with another marker, keep it
-    ;; in the accumulator.  Otherwise, clear the accumulator to avoid an
-    ;; unnecessary concat during the next call.
-    (setq gud-marker-acc
-	  (if (string-match "\\(stopped\\|signal\\)" gud-marker-acc start)
-	      (substring gud-marker-acc (match-beginning 0))
-	    nil)))
-  string)
-
-;; Functions for Mips-style dbx.  Given the option `-emacs', documented in
-;; OSF1, not necessarily elsewhere, it produces markers similar to gdb's.
-(defvar gud-mips-p
-  (or (string-match "^mips-[^-]*-ultrix" system-configuration)
-      ;; We haven't tested gud on this system:
-      (string-match "^mips-[^-]*-riscos" system-configuration)
-      ;; It's documented on OSF/1.3
-      (string-match "^mips-[^-]*-osf1" system-configuration)
-      (string-match "^alpha[^-]*-[^-]*-osf" system-configuration))
-  "Non-nil to assume the MIPS/OSF dbx conventions (argument `-emacs').")
-
-(defvar gud-dbx-command-name
-  (concat "dbx" (if gud-mips-p " -emacs")))
-
-;; This is just like the gdb one except for the regexps since we need to cope
-;; with an optional breakpoint number in [] before the ^Z^Z
-(defun gud-mipsdbx-marker-filter (string)
-  (setq gud-marker-acc (concat gud-marker-acc string))
-  (let ((output ""))
-
-    ;; Process all the complete markers in this chunk.
-    (while (string-match
-	    ;; This is like th gdb marker but with an optional
-	    ;; leading break point number like `[1] '
-	    "[][ 0-9]*\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n"
-	    gud-marker-acc)
-      (setq
-
-       ;; Extract the frame position from the marker.
-       gud-last-frame
-       (cons (match-string 1 gud-marker-acc)
-	     (string-to-number (match-string 2 gud-marker-acc)))
-
-       ;; Append any text before the marker to the output we're going
-       ;; to return - we don't include the marker in this text.
-       output (concat output
-		      (substring gud-marker-acc 0 (match-beginning 0)))
-
-       ;; Set the accumulator to the remaining text.
-       gud-marker-acc (substring gud-marker-acc (match-end 0))))
-
-    ;; Does the remaining text look like it might end with the
-    ;; beginning of another marker?  If it does, then keep it in
-    ;; gud-marker-acc until we receive the rest of it.  Since we
-    ;; know the full marker regexp above failed, it's pretty simple to
-    ;; test for marker starts.
-    (if (string-match "[][ 0-9]*\032.*\\'" gud-marker-acc)
-	(progn
-	  ;; Everything before the potential marker start can be output.
-	  (setq output (concat output (substring gud-marker-acc
-						 0 (match-beginning 0))))
-
-	  ;; Everything after, we save, to combine with later input.
-	  (setq gud-marker-acc
-		(substring gud-marker-acc (match-beginning 0))))
-
-      (setq output (concat output gud-marker-acc)
-	    gud-marker-acc ""))
-
-    output))
-
-;; The dbx in IRIX is a pain.  It doesn't print the file name when
-;; stopping at a breakpoint (but you do get it from the `up' and
-;; `down' commands...).  The only way to extract the information seems
-;; to be with a `file' command, although the current line number is
-;; available in $curline.  Thus we have to look for output which
-;; appears to indicate a breakpoint.  Then we prod the dbx sub-process
-;; to output the information we want with a combination of the
-;; `printf' and `file' commands as a pseudo marker which we can
-;; recognise next time through the marker-filter.  This would be like
-;; the gdb marker but you can't get the file name without a newline...
-;; Note that gud-remove won't work since Irix dbx expects a breakpoint
-;; number rather than a line number etc.  Maybe this could be made to
-;; work by listing all the breakpoints and picking the one(s) with the
-;; correct line number, but life's too short.
-;;   d.love@dl.ac.uk (Dave Love) can be blamed for this
-
-(defvar gud-irix-p
-  (and (string-match "^mips-[^-]*-irix" system-configuration)
-       (not (string-match "irix[6-9]\\.[1-9]" system-configuration)))
-  "Non-nil to assume the interface appropriate for IRIX dbx.
-This works in IRIX 4, 5 and 6, but `gud-dbx-use-stopformat-p' provides
-a better solution in 6.1 upwards.")
-(defvar gud-dbx-use-stopformat-p
-  (string-match "irix[6-9]\\.[1-9]" system-configuration)
-  "Non-nil to use the dbx feature present at least from Irix 6.1
-whereby $stopformat=1 produces an output format compatible with
-`gud-dbx-marker-filter'.")
-;; [Irix dbx seems to be a moving target.  The dbx output changed
-;; subtly sometime between OS v4.0.5 and v5.2 so that, for instance,
-;; the output from `up' is no longer spotted by gud (and it's probably
-;; not distinctive enough to try to match it -- use C-<, C->
-;; exclusively) .  For 5.3 and 6.0, the $curline variable changed to
-;; `long long'(why?!), so the printf stuff needed changing.  The line
-;; number was cast to `long' as a compromise between the new `long
-;; long' and the original `int'.  This is reported not to work in 6.2,
-;; so it's changed back to int -- don't make your sources too long.
-;; From Irix6.1 (but not 6.0?) dbx supports an undocumented feature
-;; whereby `set $stopformat=1' reportedly produces output compatible
-;; with `gud-dbx-marker-filter', which we prefer.
-
-;; The process filter is also somewhat
-;; unreliable, sometimes not spotting the markers; I don't know
-;; whether there's anything that can be done about that.  It would be
-;; much better if SGI could be persuaded to (re?)instate the MIPS
-;; -emacs flag for gdb-like output (which ought to be possible as most
-;; of the communication I've had over it has been from sgi.com).]
-
-;; this filter is influenced by the xdb one rather than the gdb one
-(defun gud-irixdbx-marker-filter (string)
-  (let (result (case-fold-search nil))
-    (if (or (string-match comint-prompt-regexp string)
-	    (string-match ".*\012" string))
-	(setq result (concat gud-marker-acc string)
-	      gud-marker-acc "")
-      (setq gud-marker-acc (concat gud-marker-acc string)))
-    (if result
-	(cond
-	 ;; look for breakpoint or signal indication e.g.:
-	 ;; [2] Process  1267 (pplot) stopped at [params:338 ,0x400ec0]
-	 ;; Process  1281 (pplot) stopped at [params:339 ,0x400ec8]
-	 ;; Process  1270 (pplot) Floating point exception [._read._read:16 ,0x452188]
-	 ((string-match
-	   "^\\(\\[[0-9]+] \\)?Process +[0-9]+ ([^)]*) [^[]+\\[[^]\n]*]\n"
-	   result)
-	  ;; prod dbx into printing out the line number and file
-	  ;; name in a form we can grok as below
-	  (process-send-string (get-buffer-process gud-comint-buffer)
-			       "printf \"\032\032%1d:\",(int)$curline;file\n"))
-	 ;; look for result of, say, "up" e.g.:
-	 ;; .pplot.pplot(0x800) ["src/pplot.f":261, 0x400c7c]
-	 ;; (this will also catch one of the lines printed by "where")
-	 ((string-match
-	   "^[^ ][^[]*\\[\"\\([^\"]+\\)\":\\([0-9]+\\), [^]]+]\n"
-	   result)
-	  (let ((file (match-string 1 result)))
-	    (if (file-exists-p file)
-		(setq gud-last-frame
-		      (cons (match-string 1 result)
-			    (string-to-number (match-string 2 result))))))
-	  result)
-	 ((string-match			; kluged-up marker as above
-	   "\032\032\\([0-9]*\\):\\(.*\\)\n" result)
-	  (let ((file (gud-file-name (match-string 2 result))))
-	    (if (and file (file-exists-p file))
-		(setq gud-last-frame
-		      (cons file
-			    (string-to-number (match-string 1 result))))))
-	  (setq result (substring result 0 (match-beginning 0))))))
-    (or result "")))
-
-(defvar gud-dgux-p (string-match "-dgux" system-configuration)
-  "Non-nil means to assume the interface approriate for DG/UX dbx.
-This was tested using R4.11.")
-
-;; There are a couple of differences between DG's dbx output and normal
-;; dbx output which make it nontrivial to integrate this into the
-;; standard dbx-marker-filter (mainly, there are a different number of
-;; backreferences).  The markers look like:
-;;
-;;     (0) Stopped at line 10, routine main(argc=1, argv=0xeffff0e0), file t.c
-;;
-;; from breakpoints (the `(0)' there isn't constant, it's the breakpoint
-;; number), and
-;;
-;;     Stopped at line 13, routine main(argc=1, argv=0xeffff0e0), file t.c
-;;
-;; from signals and
-;;
-;;     Frame 21, line 974, routine command_loop(), file keyboard.c
-;;
-;; from up/down/where.
-
-(defun gud-dguxdbx-marker-filter (string)
-  (setq gud-marker-acc (if gud-marker-acc
-			   (concat gud-marker-acc string)
-			 string))
-  (let ((re (concat "^\\(\\(([0-9]+) \\)?Stopped at\\|Frame [0-9]+,\\)"
-		    " line \\([0-9]+\\), routine .*, file \\([^ \t\n]+\\)"))
-	start)
-    ;; Process all complete markers in this chunk.
-    (while (string-match re gud-marker-acc start)
-      (setq gud-last-frame
-	    (cons (match-string 4 gud-marker-acc)
-		  (string-to-number (match-string 3 gud-marker-acc)))
-	    start (match-end 0)))
-
-    ;; Search for the last incomplete line in this chunk
-    (while (string-match "\n" gud-marker-acc start)
-      (setq start (match-end 0)))
-
-    ;; If the incomplete line APPEARS to begin with another marker, keep it
-    ;; in the accumulator.  Otherwise, clear the accumulator to avoid an
-    ;; unnecessary concat during the next call.
-    (setq gud-marker-acc
-	  (if (string-match "Stopped\\|Frame" gud-marker-acc start)
-	      (substring gud-marker-acc (match-beginning 0))
-	    nil)))
-  string)
-
-;;;###autoload
-(defun dbx (command-line)
-  "Run dbx on program FILE in buffer *gud-FILE*.
-The directory containing FILE becomes the initial working directory
-and source-file directory for your debugger."
-  (interactive (list (gud-query-cmdline 'dbx)))
-
-  (cond
-   (gud-mips-p
-    (gud-common-init command-line nil 'gud-mipsdbx-marker-filter))
-   (gud-irix-p
-    (gud-common-init command-line 'gud-dbx-massage-args
-		     'gud-irixdbx-marker-filter))
-   (gud-dgux-p
-    (gud-common-init command-line 'gud-dbx-massage-args
-		     'gud-dguxdbx-marker-filter))
-   (t
-    (gud-common-init command-line 'gud-dbx-massage-args
-		     'gud-dbx-marker-filter)))
-
-  (set (make-local-variable 'gud-minor-mode) 'dbx)
-
-  (cond
-   (gud-mips-p
-    (gud-def gud-up	"up %p"	  "<" "Up (numeric arg) stack frames.")
-    (gud-def gud-down	"down %p" ">" "Down (numeric arg) stack frames.")
-    (gud-def gud-break  "stop at \"%f\":%l"
-				  "\C-b" "Set breakpoint at current line.")
-    (gud-def gud-finish "return"  "\C-f" "Finish executing current function."))
-   (gud-irix-p
-    (gud-def gud-break  "stop at \"%d%f\":%l"
-				  "\C-b" "Set breakpoint at current line.")
-    (gud-def gud-finish "return"  "\C-f" "Finish executing current function.")
-    (gud-def gud-up	"up %p; printf \"\032\032%1d:\",(int)$curline;file\n"
-	     "<" "Up (numeric arg) stack frames.")
-    (gud-def gud-down "down %p; printf \"\032\032%1d:\",(int)$curline;file\n"
-	     ">" "Down (numeric arg) stack frames.")
-    ;; Make dbx give out the source location info that we need.
-    (process-send-string (get-buffer-process gud-comint-buffer)
-			 "printf \"\032\032%1d:\",(int)$curline;file\n"))
-   (t
-    (gud-def gud-up	"up %p"   "<" "Up (numeric arg) stack frames.")
-    (gud-def gud-down	"down %p" ">" "Down (numeric arg) stack frames.")
-    (gud-def gud-break "file \"%d%f\"\nstop at %l"
-				  "\C-b" "Set breakpoint at current line.")
-    (if gud-dbx-use-stopformat-p
-	(process-send-string (get-buffer-process gud-comint-buffer)
-			     "set $stopformat=1\n"))))
-
-  (gud-def gud-remove "clear %l"  "\C-d" "Remove breakpoint at current line")
-  (gud-def gud-step   "step %p"   "\C-s" "Step one line with display.")
-  (gud-def gud-stepi  "stepi %p"  "\C-i" "Step one instruction with display.")
-  (gud-def gud-next   "next %p"   "\C-n" "Step one line (skip functions).")
-  (gud-def gud-nexti  "nexti %p"   nil  "Step one instruction (skip functions).")
-  (gud-def gud-cont   "cont"      "\C-r" "Continue with display.")
-  (gud-def gud-print  "print %e"  "\C-p" "Evaluate C expression at point.")
-  (gud-def gud-run    "run"	     nil    "Run the program.")
-
-  (setq comint-prompt-regexp  "^[^)\n]*dbx) *")
-  (setq paragraph-start comint-prompt-regexp)
-  (run-hooks 'dbx-mode-hook)
-  )
-
-;; ======================================================================
-;; xdb (HP PARISC debugger) functions
-
-;; History of argument lists passed to xdb.
-(defvar gud-xdb-history nil)
-
-(defcustom gud-xdb-directories nil
-  "*A list of directories that xdb should search for source code.
-If nil, only source files in the program directory
-will be known to xdb.
-
-The file names should be absolute, or relative to the directory
-containing the executable being debugged."
-  :type '(choice (const :tag "Current Directory" nil)
-		 (repeat :value ("")
-			 directory))
-  :group 'gud)
-
-(defun gud-xdb-massage-args (file args)
-  (nconc (let ((directories gud-xdb-directories)
-	       (result nil))
-	   (while directories
-	     (setq result (cons (car directories) (cons "-d" result)))
-	     (setq directories (cdr directories)))
-	   (nreverse result))
-	 args))
-
-;; xdb does not print the lines all at once, so we have to accumulate them
-(defun gud-xdb-marker-filter (string)
-  (let (result)
-    (if (or (string-match comint-prompt-regexp string)
-	    (string-match ".*\012" string))
-	(setq result (concat gud-marker-acc string)
-	      gud-marker-acc "")
-      (setq gud-marker-acc (concat gud-marker-acc string)))
-    (if result
-	(if (or (string-match "\\([^\n \t:]+\\): [^:]+: \\([0-9]+\\)[: ]"
-			      result)
-                (string-match "[^: \t]+:[ \t]+\\([^:]+\\): [^:]+: \\([0-9]+\\):"
-                              result))
-            (let ((line (string-to-number (match-string 2 result)))
-                  (file (gud-file-name (match-string 1 result))))
-              (if file
-                  (setq gud-last-frame (cons file line))))))
-    (or result "")))
-
-;;;###autoload
-(defun xdb (command-line)
-  "Run xdb on program FILE in buffer *gud-FILE*.
-The directory containing FILE becomes the initial working directory
-and source-file directory for your debugger.
-
-You can set the variable `gud-xdb-directories' to a list of program source
-directories if your program contains sources from more than one directory."
-  (interactive (list (gud-query-cmdline 'xdb)))
-
-  (gud-common-init command-line 'gud-xdb-massage-args
-		   'gud-xdb-marker-filter)
-  (set (make-local-variable 'gud-minor-mode) 'xdb)
-
-  (gud-def gud-break  "b %f:%l"    "\C-b" "Set breakpoint at current line.")
-  (gud-def gud-tbreak "b %f:%l\\t" "\C-t"
-	   "Set temporary breakpoint at current line.")
-  (gud-def gud-remove "db"         "\C-d" "Remove breakpoint at current line")
-  (gud-def gud-step   "s %p"       "\C-s" "Step one line with display.")
-  (gud-def gud-next   "S %p"       "\C-n" "Step one line (skip functions).")
-  (gud-def gud-cont   "c"          "\C-r" "Continue with display.")
-  (gud-def gud-up     "up %p"      "<"    "Up (numeric arg) stack frames.")
-  (gud-def gud-down   "down %p"    ">"    "Down (numeric arg) stack frames.")
-  (gud-def gud-finish "bu\\t"      "\C-f" "Finish executing current function.")
-  (gud-def gud-print  "p %e"       "\C-p" "Evaluate C expression at point.")
-
-  (setq comint-prompt-regexp  "^>")
-  (setq paragraph-start comint-prompt-regexp)
-  (run-hooks 'xdb-mode-hook))
-
-;; ======================================================================
-;; perldb functions
-
-;; History of argument lists passed to perldb.
-(defvar gud-perldb-history nil)
-
-(defun gud-perldb-massage-args (file args)
-  "Convert a command line as would be typed normally to run perldb
-into one that invokes an Emacs-enabled debugging session.
-\"-emacs\" is inserted where it will be $ARGV[0] (see perl5db.pl)."
-  ;; FIXME: what if the command is `make perldb' and doesn't accept those extra
-  ;; arguments ?
-  (let* ((new-args nil)
-	 (seen-e nil)
-	 (shift (lambda () (push (pop args) new-args))))
-
-    ;; Pass all switches and -e scripts through.
-    (while (and args
-		(string-match "^-" (car args))
-		(not (equal "-" (car args)))
-		(not (equal "--" (car args))))
-      (when (equal "-e" (car args))
-	;; -e goes with the next arg, so shift one extra.
-	(or (funcall shift)
-	    ;; -e as the last arg is an error in Perl.
-	    (error "No code specified for -e"))
-	(setq seen-e t))
-      (funcall shift))
-
-    (unless seen-e
-      (if (or (not args)
-	      (string-match "^-" (car args)))
-	  (error "Can't use stdin as the script to debug"))
-      ;; This is the program name.
-      (funcall shift))
-
-    ;; If -e specified, make sure there is a -- so -emacs is not taken
-    ;; as -e macs.
-    (if (and args (equal "--" (car args)))
-	(funcall shift)
-      (and seen-e (push "--" new-args)))
-
-    (push "-emacs" new-args)
-    (while args
-      (funcall shift))
-
-    (nreverse new-args)))
-
-;; There's no guarantee that Emacs will hand the filter the entire
-;; marker at once; it could be broken up across several strings.  We
-;; might even receive a big chunk with several markers in it.  If we
-;; receive a chunk of text which looks like it might contain the
-;; beginning of a marker, we save it here between calls to the
-;; filter.
-(defun gud-perldb-marker-filter (string)
-  (setq gud-marker-acc (concat gud-marker-acc string))
-  (let ((output ""))
-
-    ;; Process all the complete markers in this chunk.
-    (while (string-match "\032\032\\(\\([a-zA-Z]:\\)?[^:\n]*\\):\\([0-9]*\\):.*\n"
-			 gud-marker-acc)
-      (setq
-
-       ;; Extract the frame position from the marker.
-       gud-last-frame
-       (cons (match-string 1 gud-marker-acc)
-	     (string-to-number (match-string 3 gud-marker-acc)))
-
-       ;; Append any text before the marker to the output we're going
-       ;; to return - we don't include the marker in this text.
-       output (concat output
-		      (substring gud-marker-acc 0 (match-beginning 0)))
-
-       ;; Set the accumulator to the remaining text.
-       gud-marker-acc (substring gud-marker-acc (match-end 0))))
-
-    ;; Does the remaining text look like it might end with the
-    ;; beginning of another marker?  If it does, then keep it in
-    ;; gud-marker-acc until we receive the rest of it.  Since we
-    ;; know the full marker regexp above failed, it's pretty simple to
-    ;; test for marker starts.
-    (if (string-match "\032.*\\'" gud-marker-acc)
-	(progn
-	  ;; Everything before the potential marker start can be output.
-	  (setq output (concat output (substring gud-marker-acc
-						 0 (match-beginning 0))))
-
-	  ;; Everything after, we save, to combine with later input.
-	  (setq gud-marker-acc
-		(substring gud-marker-acc (match-beginning 0))))
-
-      (setq output (concat output gud-marker-acc)
-	    gud-marker-acc ""))
-
-    output))
-
-(defcustom gud-perldb-command-name "perl -d"
-  "Default command to execute a Perl script under debugger."
-  :type 'string
-  :group 'gud)
-
-;;;###autoload
-(defun perldb (command-line)
-  "Run perldb on program FILE in buffer *gud-FILE*.
-The directory containing FILE becomes the initial working directory
-and source-file directory for your debugger."
-  (interactive
-   (list (gud-query-cmdline 'perldb
-			    (concat (or (buffer-file-name) "-e 0") " "))))
-
-  (gud-common-init command-line 'gud-perldb-massage-args
-		   'gud-perldb-marker-filter)
-  (set (make-local-variable 'gud-minor-mode) 'perldb)
-
-  (gud-def gud-break  "b %l"         "\C-b" "Set breakpoint at current line.")
-  (gud-def gud-remove "B %l"         "\C-d" "Remove breakpoint at current line")
-  (gud-def gud-step   "s"            "\C-s" "Step one source line with display.")
-  (gud-def gud-next   "n"            "\C-n" "Step one line (skip functions).")
-  (gud-def gud-cont   "c"            "\C-r" "Continue with display.")
-;  (gud-def gud-finish "finish"       "\C-f" "Finish executing current function.")
-;  (gud-def gud-up     "up %p"        "<" "Up N stack frames (numeric arg).")
-;  (gud-def gud-down   "down %p"      ">" "Down N stack frames (numeric arg).")
-  (gud-def gud-print  "p %e"          "\C-p" "Evaluate perl expression at point.")
-  (gud-def gud-until  "c %l"          "\C-u" "Continue to current line.")
-
-
-  (setq comint-prompt-regexp "^  DB<+[0-9]+>+ ")
-  (setq paragraph-start comint-prompt-regexp)
-  (run-hooks 'perldb-mode-hook))
-
-;; ======================================================================
-;; pdb (Python debugger) functions
-
-;; History of argument lists passed to pdb.
-(defvar gud-pdb-history nil)
-
-;; Last group is for return value, e.g. "> test.py(2)foo()->None"
-;; Either file or function name may be omitted: "> <string>(0)?()"
-(defvar gud-pdb-marker-regexp
-  "^> \\([-a-zA-Z0-9_/.:\\]*\\|<string>\\)(\\([0-9]+\\))\\([a-zA-Z0-9_]*\\|\\?\\|<module>\\)()\\(->[^\n]*\\)?\n")
-(defvar gud-pdb-marker-regexp-file-group 1)
-(defvar gud-pdb-marker-regexp-line-group 2)
-(defvar gud-pdb-marker-regexp-fnname-group 3)
-
-(defvar gud-pdb-marker-regexp-start "^> ")
-
-;; There's no guarantee that Emacs will hand the filter the entire
-;; marker at once; it could be broken up across several strings.  We
-;; might even receive a big chunk with several markers in it.  If we
-;; receive a chunk of text which looks like it might contain the
-;; beginning of a marker, we save it here between calls to the
-;; filter.
-(defun gud-pdb-marker-filter (string)
-  (setq gud-marker-acc (concat gud-marker-acc string))
-  (let ((output ""))
-
-    ;; Process all the complete markers in this chunk.
-    (while (string-match gud-pdb-marker-regexp gud-marker-acc)
-      (setq
-
-       ;; Extract the frame position from the marker.
-       gud-last-frame
-       (let ((file (match-string gud-pdb-marker-regexp-file-group
-				 gud-marker-acc))
-	     (line (string-to-number
-		    (match-string gud-pdb-marker-regexp-line-group
-				  gud-marker-acc))))
-	 (if (string-equal file "<string>")
-	     gud-last-frame
-	   (cons file line)))
-
-       ;; Output everything instead of the below
-       output (concat output (substring gud-marker-acc 0 (match-end 0)))
-;;	  ;; Append any text before the marker to the output we're going
-;;	  ;; to return - we don't include the marker in this text.
-;;	  output (concat output
-;;		      (substring gud-marker-acc 0 (match-beginning 0)))
-
-       ;; Set the accumulator to the remaining text.
-       gud-marker-acc (substring gud-marker-acc (match-end 0))))
-
-    ;; Does the remaining text look like it might end with the
-    ;; beginning of another marker?  If it does, then keep it in
-    ;; gud-marker-acc until we receive the rest of it.  Since we
-    ;; know the full marker regexp above failed, it's pretty simple to
-    ;; test for marker starts.
-    (if (string-match gud-pdb-marker-regexp-start gud-marker-acc)
-	(progn
-	  ;; Everything before the potential marker start can be output.
-	  (setq output (concat output (substring gud-marker-acc
-						 0 (match-beginning 0))))
-
-	  ;; Everything after, we save, to combine with later input.
-	  (setq gud-marker-acc
-		(substring gud-marker-acc (match-beginning 0))))
-
-      (setq output (concat output gud-marker-acc)
-	    gud-marker-acc ""))
-
-    output))
-
-(defcustom gud-pdb-command-name "pdb"
-  "File name for executing the Python debugger.
-This should be an executable on your path, or an absolute file name."
-  :type 'string
-  :group 'gud)
-
-;;;###autoload
-(defun pdb (command-line)
-  "Run pdb on program FILE in buffer `*gud-FILE*'.
-The directory containing FILE becomes the initial working directory
-and source-file directory for your debugger."
-  (interactive
-   (list (gud-query-cmdline 'pdb)))
-
-  (gud-common-init command-line nil 'gud-pdb-marker-filter)
-  (set (make-local-variable 'gud-minor-mode) 'pdb)
-
-  (gud-def gud-break  "break %f:%l"  "\C-b" "Set breakpoint at current line.")
-  (gud-def gud-remove "clear %f:%l"  "\C-d" "Remove breakpoint at current line")
-  (gud-def gud-step   "step"         "\C-s" "Step one source line with display.")
-  (gud-def gud-next   "next"         "\C-n" "Step one line (skip functions).")
-  (gud-def gud-cont   "continue"     "\C-r" "Continue with display.")
-  (gud-def gud-finish "return"       "\C-f" "Finish executing current function.")
-  (gud-def gud-up     "up"           "<" "Up one stack frame.")
-  (gud-def gud-down   "down"         ">" "Down one stack frame.")
-  (gud-def gud-print  "p %e"         "\C-p" "Evaluate Python expression at point.")
-  ;; Is this right?
-  (gud-def gud-statement "! %e"      "\C-e" "Execute Python statement at point.")
-
-  ;; (setq comint-prompt-regexp "^(.*pdb[+]?) *")
-  (setq comint-prompt-regexp "^(Pdb) *")
-  (setq paragraph-start comint-prompt-regexp)
-  (run-hooks 'pdb-mode-hook))
-
-;; ======================================================================
-;;
-;; JDB support.
-;;
-;; AUTHOR:	Derek Davies <ddavies@world.std.com>
-;;		Zoltan Kemenczy <zoltan@ieee.org;zkemenczy@rim.net>
-;;
-;; CREATED:	Sun Feb 22 10:46:38 1998 Derek Davies.
-;; UPDATED:	Nov 11, 2001 Zoltan Kemenczy
-;;              Dec 10, 2002 Zoltan Kemenczy - added nested class support
-;;
-;; INVOCATION NOTES:
-;;
-;; You invoke jdb-mode with:
-;;
-;;    M-x jdb <enter>
-;;
-;; It responds with:
-;;
-;;    Run jdb (like this): jdb
-;;
-;; type any jdb switches followed by the name of the class you'd like to debug.
-;; Supply a fully qualfied classname (these do not have the ".class" extension)
-;; for the name of the class to debug (e.g. "COM.the-kind.ddavies.CoolClass").
-;; See the known problems section below for restrictions when specifying jdb
-;; command line switches (search forward for '-classpath').
-;;
-;; You should see something like the following:
-;;
-;;    Current directory is ~/src/java/hello/
-;;    Initializing jdb...
-;;    0xed2f6628:class(hello)
-;;    >
-;;
-;; To set an initial breakpoint try:
-;;
-;;    > stop in hello.main
-;;    Breakpoint set in hello.main
-;;    >
-;;
-;; To execute the program type:
-;;
-;;    > run
-;;    run hello
-;;
-;;    Breakpoint hit: running ...
-;;    hello.main (hello:12)
-;;
-;; Type M-n to step over the current line and M-s to step into it.  That,
-;; along with the JDB 'help' command should get you started.  The 'quit'
-;; JDB command will get out out of the debugger.  There is some truly
-;; pathetic JDB documentation available at:
-;;
-;;     http://java.sun.com/products/jdk/1.1/debugging/
-;;
-;; KNOWN PROBLEMS AND FIXME's:
-;;
-;; Not sure what happens with inner classes ... haven't tried them.
-;;
-;; Does not grok UNICODE id's.  Only ASCII id's are supported.
-;;
-;; You must not put whitespace between "-classpath" and the path to
-;; search for java classes even though it is required when invoking jdb
-;; from the command line.  See gud-jdb-massage-args for details.
-;; The same applies for "-sourcepath".
-;;
-;; Note: The following applies only if `gud-jdb-use-classpath' is nil;
-;; refer to the documentation of `gud-jdb-use-classpath' and
-;; `gud-jdb-classpath',`gud-jdb-sourcepath' variables for information
-;; on using the classpath for locating java source files.
-;;
-;; If any of the source files in the directories listed in
-;; gud-jdb-directories won't parse you'll have problems.  Make sure
-;; every file ending in ".java" in these directories parses without error.
-;;
-;; All the .java files in the directories in gud-jdb-directories are
-;; syntactically analyzed each time gud jdb is invoked.  It would be
-;; nice to keep as much information as possible between runs.  It would
-;; be really nice to analyze the files only as neccessary (when the
-;; source needs to be displayed.)  I'm not sure to what extent the former
-;; can be accomplished and I'm not sure the latter can be done at all
-;; since I don't know of any general way to tell which .class files are
-;; defined by which .java file without analyzing all the .java files.
-;; If anyone knows why JavaSoft didn't put the source file names in
-;; debuggable .class files please clue me in so I find something else
-;; to be spiteful and bitter about.
-;;
-;; ======================================================================
-;; gud jdb variables and functions
-
-(defcustom gud-jdb-command-name "jdb"
-  "Command that executes the Java debugger."
-  :type 'string
-  :group 'gud)
-
-(defcustom gud-jdb-use-classpath t
-  "If non-nil, search for Java source files in classpath directories.
-The list of directories to search is the value of `gud-jdb-classpath'.
-The file pathname is obtained by converting the fully qualified
-class information output by jdb to a relative pathname and appending
-it to `gud-jdb-classpath' element by element until a match is found.
-
-This method has a significant jdb startup time reduction advantage
-since it does not require the scanning of all `gud-jdb-directories'
-and parsing all Java files for class information.
-
-Set to nil to use `gud-jdb-directories' to scan java sources for
-class information on jdb startup (original method)."
-  :type 'boolean
-  :group 'gud)
-
-(defvar gud-jdb-classpath nil
-  "Java/jdb classpath directories list.
-If `gud-jdb-use-classpath' is non-nil, gud-jdb derives the `gud-jdb-classpath'
-list automatically using the following methods in sequence
-\(with subsequent successful steps overriding the results of previous
-steps):
-
-1) Read the CLASSPATH environment variable,
-2) Read any \"-classpath\" argument used to run jdb,
-   or detected in jdb output (e.g. if jdb is run by a script
-   that echoes the actual jdb command before starting jdb),
-3) Send a \"classpath\" command to jdb and scan jdb output for
-   classpath information if jdb is invoked with an \"-attach\" (to
-   an already running VM) argument (This case typically does not
-   have a \"-classpath\" command line argument - that is provided
-   to the VM when it is started).
-
-Note that method 3 cannot be used with oldjdb (or Java 1 jdb) since
-those debuggers do not support the classpath command.  Use 1) or 2).")
-
-(defvar gud-jdb-sourcepath nil
-  "Directory list provided by an (optional) \"-sourcepath\" option to jdb.
-This list is prepended to `gud-jdb-classpath' to form the complete
-list of directories searched for source files.")
-
-(defvar gud-marker-acc-max-length 4000
-  "Maximum number of debugger output characters to keep.
-This variable limits the size of `gud-marker-acc' which holds
-the most recent debugger output history while searching for
-source file information.")
-
-(defvar gud-jdb-history nil
-  "History of argument lists passed to jdb.")
-
-
-;; List of Java source file directories.
-(defvar gud-jdb-directories (list ".")
-  "*A list of directories that gud jdb should search for source code.
-The file names should be absolute, or relative to the current
-directory.
-
-The set of .java files residing in the directories listed are
-syntactically analyzed to determine the classes they define and the
-packages in which these classes belong.  In this way gud jdb maps the
-package-qualified class names output by the jdb debugger to the source
-file from which the class originated.  This allows gud mode to keep
-the source code display in sync with the debugging session.")
-
-(defvar gud-jdb-source-files nil
-  "List of the java source files for this debugging session.")
-
-;; Association list of fully qualified class names (package + class name)
-;; and their source files.
-(defvar gud-jdb-class-source-alist nil
-  "Association list of fully qualified class names and source files.")
-
-;; This is used to hold a source file during analysis.
-(defvar gud-jdb-analysis-buffer nil)
-
-(defvar gud-jdb-classpath-string nil
-  "Holds temporary classpath values.")
-
-(defun gud-jdb-build-source-files-list (path extn)
-  "Return a list of java source files (absolute paths).
-PATH gives the directories in which to search for files with
-extension EXTN.  Normally EXTN is given as the regular expression
- \"\\.java$\" ."
-  (apply 'nconc (mapcar (lambda (d)
-			  (when (file-directory-p d)
-			    (directory-files d t extn nil)))
-			path)))
-
-;; Move point past whitespace.
-(defun gud-jdb-skip-whitespace ()
-  (skip-chars-forward " \n\r\t\014"))
-
-;; Move point past a "// <eol>" type of comment.
-(defun gud-jdb-skip-single-line-comment ()
-  (end-of-line))
-
-;; Move point past a "/* */" or "/** */" type of comment.
-(defun gud-jdb-skip-traditional-or-documentation-comment ()
-  (forward-char 2)
-  (catch 'break
-    (while (not (eobp))
-      (if (eq (following-char) ?*)
-	  (progn
-	    (forward-char)
-	    (if (not (eobp))
-		(if (eq (following-char) ?/)
-		    (progn
-		      (forward-char)
-		      (throw 'break nil)))))
-	(forward-char)))))
-
-;; Move point past any number of consecutive whitespace chars and/or comments.
-(defun gud-jdb-skip-whitespace-and-comments ()
-  (gud-jdb-skip-whitespace)
-  (catch 'done
-    (while t
-      (cond
-       ((looking-at "//")
-	(gud-jdb-skip-single-line-comment)
-	(gud-jdb-skip-whitespace))
-       ((looking-at "/\\*")
-	(gud-jdb-skip-traditional-or-documentation-comment)
-	(gud-jdb-skip-whitespace))
-       (t (throw 'done nil))))))
-
-;; Move point past things that are id-like.  The intent is to skip regular
-;; id's, such as class or interface names as well as package and interface
-;; names.
-(defun gud-jdb-skip-id-ish-thing ()
-  (skip-chars-forward "^ /\n\r\t\014,;{"))
-
-;; Move point past a string literal.
-(defun gud-jdb-skip-string-literal ()
-  (forward-char)
-  (while (not (cond
-	       ((eq (following-char) ?\\)
-		(forward-char))
-	       ((eq (following-char) ?\042))))
-    (forward-char))
-  (forward-char))
-
-;; Move point past a character literal.
-(defun gud-jdb-skip-character-literal ()
-  (forward-char)
-  (while
-      (progn
-	(if (eq (following-char) ?\\)
-	    (forward-char 2))
-	(not (eq (following-char) ?\')))
-    (forward-char))
-  (forward-char))
-
-;; Move point past the following block.  There may be (legal) cruft before
-;; the block's opening brace.  There must be a block or it's the end of life
-;; in petticoat junction.
-(defun gud-jdb-skip-block ()
-
-  ;; Find the begining of the block.
-  (while
-      (not (eq (following-char) ?{))
-
-    ;; Skip any constructs that can harbor literal block delimiter
-    ;; characters and/or the delimiters for the constructs themselves.
-    (cond
-     ((looking-at "//")
-      (gud-jdb-skip-single-line-comment))
-     ((looking-at "/\\*")
-      (gud-jdb-skip-traditional-or-documentation-comment))
-     ((eq (following-char) ?\042)
-      (gud-jdb-skip-string-literal))
-     ((eq (following-char) ?\')
-      (gud-jdb-skip-character-literal))
-     (t (forward-char))))
-
-  ;; Now at the begining of the block.
-  (forward-char)
-
-  ;; Skip over the body of the block as well as the final brace.
-  (let ((open-level 1))
-    (while (not (eq open-level 0))
-      (cond
-       ((looking-at "//")
-	(gud-jdb-skip-single-line-comment))
-       ((looking-at "/\\*")
-	(gud-jdb-skip-traditional-or-documentation-comment))
-       ((eq (following-char) ?\042)
-	(gud-jdb-skip-string-literal))
-       ((eq (following-char) ?\')
-	(gud-jdb-skip-character-literal))
-       ((eq (following-char) ?{)
-	(setq open-level (+ open-level 1))
-	(forward-char))
-       ((eq (following-char) ?})
-	(setq open-level (- open-level 1))
-	(forward-char))
-       (t (forward-char))))))
-
-;; Find the package and class definitions in Java source file FILE.  Assumes
-;; that FILE contains a legal Java program.  BUF is a scratch buffer used
-;; to hold the source during analysis.
-(defun gud-jdb-analyze-source (buf file)
-  (let ((l nil))
-    (set-buffer buf)
-    (insert-file-contents file nil nil nil t)
-    (goto-char 0)
-    (catch 'abort
-      (let ((p ""))
-	(while (progn
-		 (gud-jdb-skip-whitespace)
-		 (not (eobp)))
-	  (cond
-
-	   ;; Any number of semi's following a block is legal.  Move point
-	   ;; past them.  Note that comments and whitespace may be
-	   ;; interspersed as well.
-	   ((eq (following-char) ?\073)
-	    (forward-char))
-
-	   ;; Move point past a single line comment.
-	   ((looking-at "//")
-	    (gud-jdb-skip-single-line-comment))
-
-	   ;; Move point past a traditional or documentation comment.
-	   ((looking-at "/\\*")
-	    (gud-jdb-skip-traditional-or-documentation-comment))
-
-	   ;; Move point past a package statement, but save the PackageName.
-	   ((looking-at "package")
-	    (forward-char 7)
-	    (gud-jdb-skip-whitespace-and-comments)
-	    (let ((s (point)))
-	      (gud-jdb-skip-id-ish-thing)
-	      (setq p (concat (buffer-substring s (point)) "."))
-	      (gud-jdb-skip-whitespace-and-comments)
-	      (if (eq (following-char) ?\073)
-		  (forward-char))))
-
-	   ;; Move point past an import statement.
-	   ((looking-at "import")
-	    (forward-char 6)
-	    (gud-jdb-skip-whitespace-and-comments)
-	    (gud-jdb-skip-id-ish-thing)
-	    (gud-jdb-skip-whitespace-and-comments)
-	    (if (eq (following-char) ?\073)
-		(forward-char)))
-
-	   ;; Move point past the various kinds of ClassModifiers.
-	   ((looking-at "public")
-	    (forward-char 6))
-	   ((looking-at "abstract")
-	    (forward-char 8))
-	   ((looking-at "final")
-	    (forward-char 5))
-
-	   ;; Move point past a ClassDeclaraction, but save the class
-	   ;; Identifier.
-	   ((looking-at "class")
-	    (forward-char 5)
-	    (gud-jdb-skip-whitespace-and-comments)
-	    (let ((s (point)))
-	      (gud-jdb-skip-id-ish-thing)
-	      (setq
-	       l (nconc l (list (concat p (buffer-substring s (point)))))))
-	    (gud-jdb-skip-block))
-
-	   ;; Move point past an interface statement.
-	   ((looking-at "interface")
-	    (forward-char 9)
-	    (gud-jdb-skip-block))
-
-	   ;; Anything else means the input is invalid.
-	   (t
-	    (message "Error parsing file %s." file)
-	    (throw 'abort nil))))))
-    l))
-
-(defun gud-jdb-build-class-source-alist-for-file (file)
-  (mapcar
-   (lambda (c)
-     (cons c file))
-   (gud-jdb-analyze-source gud-jdb-analysis-buffer file)))
-
-;; Return an alist of fully qualified classes and the source files
-;; holding their definitions.  SOURCES holds a list of all the source
-;; files to examine.
-(defun gud-jdb-build-class-source-alist (sources)
-  (setq gud-jdb-analysis-buffer (get-buffer-create " *gud-jdb-scratch*"))
-  (prog1
-      (apply
-       'nconc
-       (mapcar
-	'gud-jdb-build-class-source-alist-for-file
-	sources))
-    (kill-buffer gud-jdb-analysis-buffer)
-    (setq gud-jdb-analysis-buffer nil)))
-
-;; Change what was given in the minibuffer to something that can be used to
-;; invoke the debugger.
-(defun gud-jdb-massage-args (file args)
-  ;; The jdb executable must have whitespace between "-classpath" and
-  ;; its value while gud-common-init expects all switch values to
-  ;; follow the switch keyword without intervening whitespace.  We
-  ;; require that when the user enters the "-classpath" switch in the
-  ;; EMACS minibuffer that they do so without the intervening
-  ;; whitespace.  This function adds it back (it's called after
-  ;; gud-common-init).  There are more switches like this (for
-  ;; instance "-host" and "-password") but I don't care about them
-  ;; yet.
-  (if args
-      (let (massaged-args user-error)
-
-	(while (and args (not user-error))
-	  (cond
-	   ((setq user-error (string-match "-classpath$" (car args))))
-	   ((setq user-error (string-match "-sourcepath$" (car args))))
-	   ((string-match "-classpath\\(.+\\)" (car args))
-	    (setq massaged-args
-		  (append massaged-args
-			  (list "-classpath"
-				(setq gud-jdb-classpath-string
-				      (match-string 1 (car args)))))))
-	   ((string-match "-sourcepath\\(.+\\)" (car args))
-	    (setq massaged-args
-		  (append massaged-args
-			  (list "-sourcepath"
-				(setq gud-jdb-sourcepath
-				      (match-string 1 (car args)))))))
-	   (t (setq massaged-args (append massaged-args (list (car args))))))
-	  (setq args (cdr args)))
-
-	;; By this point the current directory is all screwed up.  Maybe we
-	;; could fix things and re-invoke gud-common-init, but for now I think
-	;; issueing the error is good enough.
-	(if user-error
-	    (progn
-	      (kill-buffer (current-buffer))
-	      (error "Error: Omit whitespace between '-classpath or -sourcepath' and its value")))
-	massaged-args)))
-
-;; Search for an association with P, a fully qualified class name, in
-;; gud-jdb-class-source-alist.  The asssociation gives the fully
-;; qualified file name of the source file which produced the class.
-(defun gud-jdb-find-source-file (p)
-  (cdr (assoc p gud-jdb-class-source-alist)))
-
-;; Note: Reset to this value every time a prompt is seen
-(defvar gud-jdb-lowest-stack-level 999)
-
-(defun gud-jdb-find-source-using-classpath (p)
-  "Find source file corresponding to fully qualified class P.
-Convert P from jdb's output, converted to a pathname
-relative to a classpath directory."
-  (save-match-data
-    (let
-      (;; Replace dots with slashes and append ".java" to generate file
-       ;; name relative to classpath
-       (filename
-	(concat
-	 (mapconcat 'identity
-		    (split-string
-		     ;; Eliminate any subclass references in the class
-		     ;; name string. These start with a "$"
-		     ((lambda (x)
-			(if (string-match "$.*" x)
-			    (replace-match "" t t x) p))
-		      p)
-		     "\\.") "/")
-	 ".java"))
-       (cplist (append gud-jdb-sourcepath gud-jdb-classpath))
-       found-file)
-    (while (and cplist
-		(not (setq found-file
-			   (file-readable-p
-			    (concat (car cplist) "/" filename)))))
-      (setq cplist (cdr cplist)))
-    (if found-file (concat (car cplist) "/" filename)))))
-
-(defun gud-jdb-find-source (string)
-  "Alias for function used to locate source files.
-Set to `gud-jdb-find-source-using-classpath' or `gud-jdb-find-source-file'
-during jdb initialization depending on the value of
-`gud-jdb-use-classpath'."
-  nil)
-
-(defun gud-jdb-parse-classpath-string (string)
-  "Parse the classpath list and convert each item to an absolute pathname."
-  (mapcar (lambda (s) (if (string-match "[/\\]$" s)
-			  (replace-match "" nil nil s) s))
-	  (mapcar 'file-truename
-		  (split-string
-		   string
-		   (concat "[ \t\n\r,\"" path-separator "]+")))))
-
-;; See comentary for other debugger's marker filters - there you will find
-;; important notes about STRING.
-(defun gud-jdb-marker-filter (string)
-
-  ;; Build up the accumulator.
-  (setq gud-marker-acc
-	(if gud-marker-acc
-	    (concat gud-marker-acc string)
-	  string))
-
-  ;; Look for classpath information until gud-jdb-classpath-string is found
-  ;; (interactive, multiple settings of classpath from jdb
-  ;;  not supported/followed)
-  (if (and gud-jdb-use-classpath
-	   (not gud-jdb-classpath-string)
-	   (or (string-match "classpath:[ \t[]+\\([^]]+\\)" gud-marker-acc)
-	       (string-match "-classpath[ \t\"]+\\([^ \"]+\\)" gud-marker-acc)))
-      (setq gud-jdb-classpath
-	    (gud-jdb-parse-classpath-string
-	     (setq gud-jdb-classpath-string
-		   (match-string 1 gud-marker-acc)))))
-
-  ;; We process STRING from left to right.  Each time through the
-  ;; following loop we process at most one marker. After we've found a
-  ;; marker, delete gud-marker-acc up to and including the match
-  (let (file-found)
-    ;; Process each complete marker in the input.
-    (while
-
-	;; Do we see a marker?
-	(string-match
-	 ;; jdb puts out a string of the following form when it
-	 ;; hits a breakpoint:
-	 ;;
-	 ;;	<fully-qualified-class><method> (<class>:<line-number>)
-	 ;;
-	 ;; <fully-qualified-class>'s are composed of Java ID's
-	 ;; separated by periods.  <method> and <class> are
-	 ;; also Java ID's.  <method> begins with a period and
-	 ;; may contain less-than and greater-than (constructors,
-	 ;; for instance, are called <init> in the symbol table.)
-	 ;; Java ID's begin with a letter followed by letters
-	 ;; and/or digits.  The set of letters includes underscore
-	 ;; and dollar sign.
-	 ;;
-	 ;; The first group matches <fully-qualified-class>,
-	 ;; the second group matches <class> and the third group
-	 ;; matches <line-number>.  We don't care about using
-	 ;; <method> so we don't "group" it.
-	 ;;
-	 ;; FIXME: Java ID's are UNICODE strings, this matches ASCII
-	 ;; ID's only.
-         ;;
-         ;; The ".," in the last square-bracket are necessary because
-         ;; of Sun's total disrespect for backwards compatibility in
-         ;; reported line numbers from jdb - starting in 1.4.0 they
-         ;; print line numbers using LOCALE, inserting a comma or a
-         ;; period at the thousands positions (how ingenious!).
-
-	 "\\(\\[[0-9]+] \\)*\\([a-zA-Z0-9.$_]+\\)\\.[a-zA-Z0-9$_<>(),]+ \
-\\(([a-zA-Z0-9.$_]+:\\|line=\\)\\([0-9.,]+\\)"
-	 gud-marker-acc)
-
-      ;; A good marker is one that:
-      ;; 1) does not have a "[n] " prefix (not part of a stack backtrace)
-      ;; 2) does have an "[n] " prefix and n is the lowest prefix seen
-      ;;    since the last prompt
-      ;; Figure out the line on which to position the debugging arrow.
-      ;; Return the info as a cons of the form:
-      ;;
-      ;;     (<file-name> . <line-number>) .
-      (if (if (match-beginning 1)
-	      (let (n)
-		(setq n (string-to-number (substring
-					gud-marker-acc
-					(1+ (match-beginning 1))
-					(- (match-end 1) 2))))
-		(if (< n gud-jdb-lowest-stack-level)
-		    (progn (setq gud-jdb-lowest-stack-level n) t)))
-	    t)
-	  (if (setq file-found
-		    (gud-jdb-find-source (match-string 2 gud-marker-acc)))
-	      (setq gud-last-frame
-		    (cons file-found
-			  (string-to-number
-			   (let
-                               ((numstr (match-string 4 gud-marker-acc)))
-                             (if (string-match "[.,]" numstr)
-                                 (replace-match "" nil nil numstr)
-                               numstr)))))
-	    (message "Could not find source file.")))
-
-      ;; Set the accumulator to the remaining text.
-      (setq gud-marker-acc (substring gud-marker-acc (match-end 0))))
-
-    (if (string-match comint-prompt-regexp gud-marker-acc)
-	(setq gud-jdb-lowest-stack-level 999)))
-
-  ;; Do not allow gud-marker-acc to grow without bound. If the source
-  ;; file information is not within the last 3/4
-  ;; gud-marker-acc-max-length characters, well,...
-  (if (> (length gud-marker-acc) gud-marker-acc-max-length)
-      (setq gud-marker-acc
-	    (substring gud-marker-acc
-		       (- (/ (* gud-marker-acc-max-length 3) 4)))))
-
-  ;; We don't filter any debugger output so just return what we were given.
-  string)
-
-(defvar gud-jdb-command-name "jdb" "Command that executes the Java debugger.")
-
-;;;###autoload
-(defun jdb (command-line)
-  "Run jdb with command line COMMAND-LINE in a buffer.
-The buffer is named \"*gud*\" if no initial class is given or
-\"*gud-<initial-class-basename>*\" if there is.  If the \"-classpath\"
-switch is given, omit all whitespace between it and its value.
-
-See `gud-jdb-use-classpath' and `gud-jdb-classpath' documentation for
-information on how jdb accesses source files.  Alternatively (if
-`gud-jdb-use-classpath' is nil), see `gud-jdb-directories' for the
-original source file access method.
-
-For general information about commands available to control jdb from
-gud, see `gud-mode'."
-  (interactive
-   (list (gud-query-cmdline 'jdb)))
-  (setq gud-jdb-classpath nil)
-  (setq gud-jdb-sourcepath nil)
-
-  ;; Set gud-jdb-classpath from the CLASSPATH environment variable,
-  ;; if CLASSPATH is set.
-  (setq gud-jdb-classpath-string (getenv "CLASSPATH"))
-  (if gud-jdb-classpath-string
-      (setq gud-jdb-classpath
-	    (gud-jdb-parse-classpath-string gud-jdb-classpath-string)))
-  (setq gud-jdb-classpath-string nil)	; prepare for next
-
-  (gud-common-init command-line 'gud-jdb-massage-args
-		   'gud-jdb-marker-filter)
-  (set (make-local-variable 'gud-minor-mode) 'jdb)
-
-  ;; If a -classpath option was provided, set gud-jdb-classpath
-  (if gud-jdb-classpath-string
-      (setq gud-jdb-classpath
-	    (gud-jdb-parse-classpath-string gud-jdb-classpath-string)))
-  (setq gud-jdb-classpath-string nil)	; prepare for next
-  ;; If a -sourcepath option was provided, parse it
-  (if gud-jdb-sourcepath
-      (setq gud-jdb-sourcepath
-	    (gud-jdb-parse-classpath-string gud-jdb-sourcepath)))
-
-  (gud-def gud-break  "stop at %c:%l" "\C-b" "Set breakpoint at current line.")
-  (gud-def gud-remove "clear %c:%l"   "\C-d" "Remove breakpoint at current line")
-  (gud-def gud-step   "step"          "\C-s" "Step one source line with display.")
-  (gud-def gud-next   "next"          "\C-n" "Step one line (skip functions).")
-  (gud-def gud-cont   "cont"          "\C-r" "Continue with display.")
-  (gud-def gud-finish "step up"       "\C-f" "Continue until current method returns.")
-  (gud-def gud-up     "up\C-Mwhere"   "<"    "Up one stack frame.")
-  (gud-def gud-down   "down\C-Mwhere" ">"    "Up one stack frame.")
-  (gud-def gud-run    "run"           nil    "Run the program.") ;if VM start using jdb
-  (gud-def gud-print  "print %e"  "\C-p" "Evaluate Java expression at point.")
-
-
-  (setq comint-prompt-regexp "^> \\|^[^ ]+\\[[0-9]+\\] ")
-  (setq paragraph-start comint-prompt-regexp)
-  (run-hooks 'jdb-mode-hook)
-
-  (if gud-jdb-use-classpath
-      ;; Get the classpath information from the debugger
-      (progn
-	(if (string-match "-attach" command-line)
-	    (gud-call "classpath"))
-	(fset 'gud-jdb-find-source
-	      'gud-jdb-find-source-using-classpath))
-
-    ;; Else create and bind the class/source association list as well
-    ;; as the source file list.
-    (setq gud-jdb-class-source-alist
-	  (gud-jdb-build-class-source-alist
-	   (setq gud-jdb-source-files
-		 (gud-jdb-build-source-files-list gud-jdb-directories
-						  "\\.java$"))))
-    (fset 'gud-jdb-find-source 'gud-jdb-find-source-file)))
-
-;;
-;; End of debugger-specific information
-;;
-
-
-;; When we send a command to the debugger via gud-call, it's annoying
-;; to see the command and the new prompt inserted into the debugger's
-;; buffer; we have other ways of knowing the command has completed.
-;;
-;; If the buffer looks like this:
-;; --------------------
-;; (gdb) set args foo bar
-;; (gdb) -!-
-;; --------------------
-;; (the -!- marks the location of point), and we type `C-x SPC' in a
-;; source file to set a breakpoint, we want the buffer to end up like
-;; this:
-;; --------------------
-;; (gdb) set args foo bar
-;; Breakpoint 1 at 0x92: file make-docfile.c, line 49.
-;; (gdb) -!-
-;; --------------------
-;; Essentially, the old prompt is deleted, and the command's output
-;; and the new prompt take its place.
-;;
-;; Not echoing the command is easy enough; you send it directly using
-;; process-send-string, and it never enters the buffer.  However,
-;; getting rid of the old prompt is trickier; you don't want to do it
-;; when you send the command, since that will result in an annoying
-;; flicker as the prompt is deleted, redisplay occurs while Emacs
-;; waits for a response from the debugger, and the new prompt is
-;; inserted.  Instead, we'll wait until we actually get some output
-;; from the subprocess before we delete the prompt.  If the command
-;; produced no output other than a new prompt, that prompt will most
-;; likely be in the first chunk of output received, so we will delete
-;; the prompt and then replace it with an identical one.  If the
-;; command produces output, the prompt is moving anyway, so the
-;; flicker won't be annoying.
-;;
-;; So - when we want to delete the prompt upon receipt of the next
-;; chunk of debugger output, we position gud-delete-prompt-marker at
-;; the start of the prompt; the process filter will notice this, and
-;; delete all text between it and the process output marker.  If
-;; gud-delete-prompt-marker points nowhere, we leave the current
-;; prompt alone.
-(defvar gud-delete-prompt-marker nil)
-
-
-(put 'gud-mode 'mode-class 'special)
-
-(define-derived-mode gud-mode comint-mode "Debugger"
-  "Major mode for interacting with an inferior debugger process.
-
-   You start it up with one of the commands M-x gdb, M-x sdb, M-x dbx,
-M-x perldb, M-x xdb, M-x jdb, or M-x lldb.  Each entry point finishes by
-executing a hook; `gdb-mode-hook', `sdb-mode-hook', `dbx-mode-hook',
-`perldb-mode-hook', `xdb-mode-hook', `jdb-mode-hook', or `lldb-mode-hook'
-respectively.
-
-After startup, the following commands are available in both the GUD
-interaction buffer and any source buffer GUD visits due to a breakpoint stop
-or step operation:
-
-\\[gud-break] sets a breakpoint at the current file and line.  In the
-GUD buffer, the current file and line are those of the last breakpoint or
-step.  In a source buffer, they are the buffer's file and current line.
-
-\\[gud-remove] removes breakpoints on the current file and line.
-
-\\[gud-refresh] displays in the source window the last line referred to
-in the gud buffer.
-
-\\[gud-step], \\[gud-next], and \\[gud-stepi] do a step-one-line,
-step-one-line (not entering function calls), and step-one-instruction
-and then update the source window with the current file and position.
-\\[gud-cont] continues execution.
-
-\\[gud-print] tries to find the largest C lvalue or function-call expression
-around point, and sends it to the debugger for value display.
-
-The above commands are common to all supported debuggers except xdb which
-does not support stepping instructions.
-
-Under gdb, sdb and xdb, \\[gud-tbreak] behaves exactly like \\[gud-break],
-except that the breakpoint is temporary; that is, it is removed when
-execution stops on it.
-
-Under gdb, dbx, xdb, and lldb, \\[gud-up] pops up through an enclosing stack
-frame.  \\[gud-down] drops back down through one.
-
-If you are using gdb or xdb, \\[gud-finish] runs execution to the return from
-the current function and stops.
-
-All the keystrokes above are accessible in the GUD buffer
-with the prefix C-c, and in all buffers through the prefix C-x C-a.
-
-All pre-defined functions for which the concept make sense repeat
-themselves the appropriate number of times if you give a prefix
-argument.
-
-You may use the `gud-def' macro in the initialization hook to define other
-commands.
-
-Other commands for interacting with the debugger process are inherited from
-comint mode, which see."
-  (setq mode-line-process '(":%s"))
-  (define-key (current-local-map) "\C-c\C-l" 'gud-refresh)
-  (set (make-local-variable 'gud-last-frame) nil)
-  (set (make-local-variable 'tool-bar-map) gud-tool-bar-map)
-  (make-local-variable 'comint-prompt-regexp)
-  ;; Don't put repeated commands in command history many times.
-  (set (make-local-variable 'comint-input-ignoredups) t)
-  (make-local-variable 'paragraph-start)
-  (set (make-local-variable 'gud-delete-prompt-marker) (make-marker))
-  (add-hook 'kill-buffer-hook 'gud-kill-buffer-hook nil t))
-
-;; Cause our buffers to be displayed, by default,
-;; in the selected window.
-;;;###autoload (add-hook 'same-window-regexps "\\*gud-.*\\*\\(\\|<[0-9]+>\\)")
-
-(defcustom gud-chdir-before-run t
-  "Non-nil if GUD should `cd' to the debugged executable."
-  :group 'gud
-  :type 'boolean)
-
-(defvar gud-target-name "--unknown--"
-  "The apparent name of the program being debugged in a gud buffer.")
-
-;; Perform initializations common to all debuggers.
-;; The first arg is the specified command line,
-;; which starts with the program to debug.
-;; The other three args specify the values to use
-;; for local variables in the debugger buffer.
-(defun gud-common-init (command-line massage-args marker-filter
-				     &optional find-file)
-  (let* ((words (split-string-and-unquote command-line))
-	 (program (car words))
-	 (dir default-directory)
-	 ;; Extract the file name from WORDS
-	 ;; and put t in its place.
-	 ;; Later on we will put the modified file name arg back there.
-	 (file-word (let ((w (cdr words)))
-		      (while (and w (= ?- (aref (car w) 0)))
-			(setq w (cdr w)))
-		      (and w
-			   (prog1 (car w)
-			     (setcar w t)))))
-	 (file-subst
-	  (and file-word (substitute-in-file-name file-word)))
-	 (args (cdr words))
-	 ;; If a directory was specified, expand the file name.
-	 ;; Otherwise, don't expand it, so GDB can use the PATH.
-	 ;; A file name without directory is literally valid
-	 ;; only if the file exists in ., and in that case,
-	 ;; omitting the expansion here has no visible effect.
-	 (file (and file-word
-		    (if (file-name-directory file-subst)
-			(expand-file-name file-subst)
-		      file-subst)))
-	 (filepart (and file-word (concat "-" (file-name-nondirectory file))))
-	 (existing-buffer (get-buffer (concat "*gud" filepart "*"))))
-    (pop-to-buffer (concat "*gud" filepart "*"))
-    (when (and existing-buffer (get-buffer-process existing-buffer))
-      (error "This program is already being debugged"))
-    ;; Set the dir, in case the buffer already existed with a different dir.
-    (setq default-directory dir)
-    ;; Set default-directory to the file's directory.
-    (and file-word
-	 gud-chdir-before-run
-	 ;; Don't set default-directory if no directory was specified.
-	 ;; In that case, either the file is found in the current directory,
-	 ;; in which case this setq is a no-op,
-	 ;; or it is found by searching PATH,
-	 ;; in which case we don't know what directory it was found in.
-	 (file-name-directory file)
-	 (setq default-directory (file-name-directory file)))
-    (or (bolp) (newline))
-    (insert "Current directory is " default-directory "\n")
-    ;; Put the substituted and expanded file name back in its place.
-    (let ((w args))
-      (while (and w (not (eq (car w) t)))
-	(setq w (cdr w)))
-      (if w
-	  (setcar w file)))
-    (apply 'make-comint (concat "gud" filepart) program nil
-	   (if massage-args (funcall massage-args file args) args))
-    ;; Since comint clobbered the mode, we don't set it until now.
-    (gud-mode)
-    (set (make-local-variable 'gud-target-name)
-	 (and file-word (file-name-nondirectory file))))
-  (set (make-local-variable 'gud-marker-filter) marker-filter)
-  (if find-file (set (make-local-variable 'gud-find-file) find-file))
-  (setq gud-last-last-frame nil)
-
-  (set-process-filter (get-buffer-process (current-buffer)) 'gud-filter)
-  (set-process-sentinel (get-buffer-process (current-buffer)) 'gud-sentinel)
-  (gud-set-buffer))
-
-(defun gud-set-buffer ()
-  (when (eq major-mode 'gud-mode)
-    (setq gud-comint-buffer (current-buffer))))
-
-(defvar gud-filter-defer-flag nil
-  "Non-nil means don't process anything from the debugger right now.
-It is saved for when this flag is not set.")
-
-;; These functions are responsible for inserting output from your debugger
-;; into the buffer.  The hard work is done by the method that is
-;; the value of gud-marker-filter.
-
-(defun gud-filter (proc string)
-  ;; Here's where the actual buffer insertion is done
-  (let (output process-window)
-    (if (buffer-name (process-buffer proc))
-	(if gud-filter-defer-flag
-	    ;; If we can't process any text now,
-	    ;; save it for later.
-	    (setq gud-filter-pending-text
-		  (concat (or gud-filter-pending-text "") string))
-
-	  ;; If we have to ask a question during the processing,
-	  ;; defer any additional text that comes from the debugger
-	  ;; during that time.
-	  (let ((gud-filter-defer-flag t))
-	    ;; Process now any text we previously saved up.
-	    (if gud-filter-pending-text
-		(setq string (concat gud-filter-pending-text string)
-		      gud-filter-pending-text nil))
-
-	    (with-current-buffer (process-buffer proc)
-	      ;; If we have been so requested, delete the debugger prompt.
-	      (save-restriction
-		(widen)
-		(if (marker-buffer gud-delete-prompt-marker)
-		    (let ((inhibit-read-only t))
-		      (delete-region (process-mark proc)
-				     gud-delete-prompt-marker)
-		      (comint-update-fence)
-		      (set-marker gud-delete-prompt-marker nil)))
-		;; Save the process output, checking for source file markers.
-		(setq output (gud-marker-filter string))
-		;; Check for a filename-and-line number.
-		;; Don't display the specified file
-		;; unless (1) point is at or after the position where output appears
-		;; and (2) this buffer is on the screen.
-		(setq process-window
-		      (and gud-last-frame
-			   (>= (point) (process-mark proc))
-			   (get-buffer-window (current-buffer)))))
-
-	      ;; Let the comint filter do the actual insertion.
-	      ;; That lets us inherit various comint features.
-	      (comint-output-filter proc output))
-
-	    ;; Put the arrow on the source line.
-	    ;; This must be outside of the save-excursion
-	    ;; in case the source file is our current buffer.
-	    (if process-window
-		(with-selected-window process-window
-		  (gud-display-frame))
-	      ;; We have to be in the proper buffer, (process-buffer proc),
-	      ;; but not in a save-excursion, because that would restore point.
-	      (with-current-buffer (process-buffer proc)
-		(gud-display-frame))))
-
-	  ;; If we deferred text that arrived during this processing,
-	  ;; handle it now.
-	  (if gud-filter-pending-text
-	      (gud-filter proc ""))))))
-
-(defvar gud-minor-mode-type nil)
-(defvar gud-overlay-arrow-position nil)
-(add-to-list 'overlay-arrow-variable-list 'gud-overlay-arrow-position)
-
-(defun gud-sentinel (proc msg)
-  (cond ((null (buffer-name (process-buffer proc)))
-	 ;; buffer killed
-	 ;; Stop displaying an arrow in a source file.
-	 (setq gud-overlay-arrow-position nil)
-	 (set-process-buffer proc nil)
-	 (if (and (boundp 'speedbar-frame)
-		  (string-equal speedbar-initial-expansion-list-name "GUD"))
-	     (speedbar-change-initial-expansion-list
-	      speedbar-previously-used-expansion-list-name))
-	 (if (memq gud-minor-mode-type '(gdbmi gdba))
-	     (gdb-reset)
-	   (gud-reset)))
-	((memq (process-status proc) '(signal exit))
-	 ;; Stop displaying an arrow in a source file.
-	 (setq gud-overlay-arrow-position nil)
-	 (if (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-		   '(gdba gdbmi))
-	     (gdb-reset)
-	   (gud-reset))
-	 (let* ((obuf (current-buffer)))
-	   ;; save-excursion isn't the right thing if
-	   ;;  process-buffer is current-buffer
-	   (unwind-protect
-	       (progn
-		 ;; Write something in the GUD buffer and hack its mode line,
-		 (set-buffer (process-buffer proc))
-		 ;; Fix the mode line.
-		 (setq mode-line-process
-		       (concat ":"
-			       (symbol-name (process-status proc))))
-		 (force-mode-line-update)
-		 (if (eobp)
-		     (insert ?\n mode-name " " msg)
-		   (save-excursion
-		     (goto-char (point-max))
-		     (insert ?\n mode-name " " msg)))
-		 ;; If buffer and mode line will show that the process
-		 ;; is dead, we can delete it now.  Otherwise it
-		 ;; will stay around until M-x list-processes.
-		 (delete-process proc))
-	     ;; Restore old buffer, but don't restore old point
-	     ;; if obuf is the gud buffer.
-	     (set-buffer obuf))))))
-
-(defun gud-kill-buffer-hook ()
-  (setq gud-minor-mode-type gud-minor-mode)
-  (condition-case nil
-      (kill-process (get-buffer-process (current-buffer)))
-    (error nil)))
-
-(defun gud-reset ()
-  (dolist (buffer (buffer-list))
-    (unless (eq buffer gud-comint-buffer)
-      (with-current-buffer buffer
-	(when gud-minor-mode
-	  (setq gud-minor-mode nil)
-	  (kill-local-variable 'tool-bar-map))))))
-
-(defun gud-display-frame ()
-  "Find and obey the last filename-and-line marker from the debugger.
-Obeying it means displaying in another window the specified file and line."
-  (interactive)
-  (when gud-last-frame
-    (gud-set-buffer)
-    (gud-display-line (car gud-last-frame) (cdr gud-last-frame))
-    (setq gud-last-last-frame gud-last-frame
-	  gud-last-frame nil)))
-
-;; Make sure the file named TRUE-FILE is in a buffer that appears on the screen
-;; and that its line LINE is visible.
-;; Put the overlay-arrow on the line LINE in that buffer.
-;; Most of the trickiness in here comes from wanting to preserve the current
-;; region-restriction if that's possible.  We use an explicit display-buffer
-;; to get around the fact that this is called inside a save-excursion.
-
-(defun gud-display-line (true-file line)
-  (let* ((last-nonmenu-event t)	 ; Prevent use of dialog box for questions.
-	 (buffer
-	  (with-current-buffer gud-comint-buffer
-	    (gud-find-file true-file)))
-	 (window (and buffer
-		      (or (get-buffer-window buffer)
-			  (if (memq gud-minor-mode '(gdbmi gdba))
-			      (or (if (get-buffer-window buffer 0)
-				      (display-buffer buffer nil 0))
-				  (unless (gdb-display-source-buffer buffer)
-				    (gdb-display-buffer buffer nil))))
-			  (display-buffer buffer))))
-	 (pos))
-    (if buffer
-	(progn
-	  (with-current-buffer buffer
-	    (unless (or (verify-visited-file-modtime buffer) gud-keep-buffer)
-		  (if (yes-or-no-p
-		       (format "File %s changed on disk.  Reread from disk? "
-			       (buffer-name)))
-		      (revert-buffer t t)
-		    (setq gud-keep-buffer t)))
-	    (save-restriction
-	      (widen)
-	      (goto-line line)
-	      (setq pos (point))
-	      (or gud-overlay-arrow-position
-		  (setq gud-overlay-arrow-position (make-marker)))
-	      (set-marker gud-overlay-arrow-position (point) (current-buffer))
-	      ;; If they turned on hl-line, move the hl-line highlight to
-	      ;; the arrow's line.
-	      (when (featurep 'hl-line)
-		(cond
-		 (global-hl-line-mode
-		  (global-hl-line-highlight))
-		 ((and hl-line-mode hl-line-sticky-flag)
-		  (hl-line-highlight)))))
-	    (cond ((or (< pos (point-min)) (> pos (point-max)))
-		   (widen)
-		   (goto-char pos))))
-	  (when window
-	    (set-window-point window gud-overlay-arrow-position)
-	    (if (memq gud-minor-mode '(gdbmi gdba))
-		(setq gdb-source-window window)))))))
-
-;; The gud-call function must do the right thing whether its invoking
-;; keystroke is from the GUD buffer itself (via major-mode binding)
-;; or a C buffer.  In the former case, we want to supply data from
-;; gud-last-frame.  Here's how we do it:
-
-(defun gud-format-command (str arg)
-  (let ((insource (not (eq (current-buffer) gud-comint-buffer)))
-	(frame (or gud-last-frame gud-last-last-frame))
-	result)
-    (while (and str
-		(let ((case-fold-search nil))
-		  (string-match "\\([^%]*\\)%\\([abdefFlpc]\\)" str)))
-      (let ((key (string-to-char (match-string 2 str)))
-	    subst)
-	(cond
-	 ((eq key ?f)
-	  (setq subst (file-name-nondirectory (if insource
-						  (buffer-file-name)
-						(car frame)))))
-	 ((eq key ?F)
-	  (setq subst (file-name-sans-extension
-		       (file-name-nondirectory (if insource
-						   (buffer-file-name)
-						 (car frame))))))
-	 ((eq key ?d)
-	  (setq subst (file-name-directory (if insource
-					       (buffer-file-name)
-					     (car frame)))))
-	 ((eq key ?l)
-	  (setq subst (int-to-string
-		       (if insource
-			   (save-restriction
-			     (widen)
-			     (+ (count-lines (point-min) (point))
-				(if (bolp) 1 0)))
-			 (cdr frame)))))
-	 ((eq key ?e)
-	  (setq subst (gud-find-expr)))
-	 ((eq key ?a)
-	  (setq subst (gud-read-address)))
-	 ((eq key ?b)
-	  (setq subst gud-breakpoint-id))
-	 ((eq key ?c)
-	  (setq subst
-                (gud-find-class
-                 (if insource
-                      (buffer-file-name)
-                    (car frame))
-                 (if insource
-                      (save-restriction
-                        (widen)
-                        (+ (count-lines (point-min) (point))
-                           (if (bolp) 1 0)))
-                    (cdr frame)))))
-	 ((eq key ?p)
-	  (setq subst (if arg (int-to-string arg)))))
-	(setq result (concat result (match-string 1 str) subst)))
-      (setq str (substring str (match-end 2))))
-    ;; There might be text left in STR when the loop ends.
-    (concat result str)))
-
-(defun gud-read-address ()
-  "Return a string containing the core-address found in the buffer at point."
-  (save-match-data
-    (save-excursion
-      (let ((pt (point)) found begin)
-	(setq found (if (search-backward "0x" (- pt 7) t) (point)))
-	(cond
-	 (found (forward-char 2)
-		(buffer-substring found
-				  (progn (re-search-forward "[^0-9a-f]")
-					 (forward-char -1)
-					 (point))))
-	 (t (setq begin (progn (re-search-backward "[^0-9]")
-			       (forward-char 1)
-			       (point)))
-	    (forward-char 1)
-	    (re-search-forward "[^0-9]")
-	    (forward-char -1)
-	    (buffer-substring begin (point))))))))
-
-(defun gud-call (fmt &optional arg)
-  (let ((msg (gud-format-command fmt arg)))
-    (message "Command: %s" msg)
-    (sit-for 0)
-    (gud-basic-call msg)))
-
-(defun gud-basic-call (command)
-  "Invoke the debugger COMMAND displaying source in other window."
-  (interactive)
-  (gud-set-buffer)
-  (let ((proc (get-buffer-process gud-comint-buffer)))
-    (or proc (error "Current buffer has no process"))
-    ;; Arrange for the current prompt to get deleted.
-    (save-excursion
-      (set-buffer gud-comint-buffer)
-      (save-restriction
-	(widen)
-	(if (marker-position gud-delete-prompt-marker)
-	    ;; We get here when printing an expression.
-	    (goto-char gud-delete-prompt-marker)
-	  (goto-char (process-mark proc))
-	  (forward-line 0))
-	(if (looking-at comint-prompt-regexp)
-	    (set-marker gud-delete-prompt-marker (point)))
-	(if (memq gud-minor-mode '(gdbmi gdba))
-	    (apply comint-input-sender (list proc command))
-	  (process-send-string proc (concat command "\n")))))))
-
-(defun gud-refresh (&optional arg)
-  "Fix up a possibly garbled display, and redraw the arrow."
-  (interactive "P")
-  (or gud-last-frame (setq gud-last-frame gud-last-last-frame))
-  (gud-display-frame)
-  (recenter arg))
-
-;; Code for parsing expressions out of C or Fortran code.  The single entry
-;; point is gud-find-expr, which tries to return an lvalue expression from
-;; around point.
-
-(defvar gud-find-expr-function 'gud-find-c-expr)
-
-(defun gud-find-expr (&rest args)
-  (let ((expr (if (and transient-mark-mode mark-active)
-		  (buffer-substring (region-beginning) (region-end))
-		(apply gud-find-expr-function args))))
-    (save-match-data
-      (if (string-match "\n" expr)
-	  (error "Expression must not include a newline"))
-      (with-current-buffer gud-comint-buffer
-	(save-excursion
-	  (goto-char (process-mark (get-buffer-process gud-comint-buffer)))
-	  (forward-line 0)
-	  (when (looking-at comint-prompt-regexp)
-	    (set-marker gud-delete-prompt-marker (point))
-	    (set-marker-insertion-type gud-delete-prompt-marker t))
-	  (unless (eq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-		      'jdb)
-	      (insert (concat  expr " = "))))))
-    expr))
-
-;; The next eight functions are hacked from gdbsrc.el by
-;; Debby Ayers <ayers@asc.slb.com>,
-;; Rich Schaefer <schaefer@asc.slb.com> Schlumberger, Austin, Tx.
-
-(defun gud-find-c-expr ()
-  "Returns the expr that surrounds point."
-  (interactive)
-  (save-excursion
-    (let ((p (point))
-	  (expr (gud-innermost-expr))
-	  (test-expr (gud-prev-expr)))
-      (while (and test-expr (gud-expr-compound test-expr expr))
-	(let ((prev-expr expr))
-	  (setq expr (cons (car test-expr) (cdr expr)))
-	  (goto-char (car expr))
-	  (setq test-expr (gud-prev-expr))
-	  ;; If we just pasted on the condition of an if or while,
-	  ;; throw it away again.
-	  (if (member (buffer-substring (car test-expr) (cdr test-expr))
-		      '("if" "while" "for"))
-	      (setq test-expr nil
-		    expr prev-expr))))
-      (goto-char p)
-      (setq test-expr (gud-next-expr))
-      (while (gud-expr-compound expr test-expr)
-	(setq expr (cons (car expr) (cdr test-expr)))
-	(setq test-expr (gud-next-expr)))
-      (buffer-substring (car expr) (cdr expr)))))
-
-(defun gud-innermost-expr ()
-  "Returns the smallest expr that point is in; move point to beginning of it.
-The expr is represented as a cons cell, where the car specifies the point in
-the current buffer that marks the beginning of the expr and the cdr specifies
-the character after the end of the expr."
-  (let ((p (point)) begin end)
-    (gud-backward-sexp)
-    (setq begin (point))
-    (gud-forward-sexp)
-    (setq end (point))
-    (if (>= p end)
-	(progn
-	 (setq begin p)
-	 (goto-char p)
-	 (gud-forward-sexp)
-	 (setq end (point)))
-      )
-    (goto-char begin)
-    (cons begin end)))
-
-(defun gud-backward-sexp ()
-  "Version of `backward-sexp' that catches errors."
-  (condition-case nil
-      (backward-sexp)
-    (error t)))
-
-(defun gud-forward-sexp ()
-  "Version of `forward-sexp' that catches errors."
-  (condition-case nil
-     (forward-sexp)
-    (error t)))
-
-(defun gud-prev-expr ()
-  "Returns the previous expr, point is set to beginning of that expr.
-The expr is represented as a cons cell, where the car specifies the point in
-the current buffer that marks the beginning of the expr and the cdr specifies
-the character after the end of the expr"
-  (let ((begin) (end))
-    (gud-backward-sexp)
-    (setq begin (point))
-    (gud-forward-sexp)
-    (setq end (point))
-    (goto-char begin)
-    (cons begin end)))
-
-(defun gud-next-expr ()
-  "Returns the following expr, point is set to beginning of that expr.
-The expr is represented as a cons cell, where the car specifies the point in
-the current buffer that marks the beginning of the expr and the cdr specifies
-the character after the end of the expr."
-  (let ((begin) (end))
-    (gud-forward-sexp)
-    (gud-forward-sexp)
-    (setq end (point))
-    (gud-backward-sexp)
-    (setq begin (point))
-    (cons begin end)))
-
-(defun gud-expr-compound-sep (span-start span-end)
-  "Scan from SPAN-START to SPAN-END for punctuation characters.
-If `->' is found, return `?.'.  If `.' is found, return `?.'.
-If any other punctuation is found, return `??'.
-If no punctuation is found, return `? '."
-  (let ((result ?\s)
-	(syntax))
-    (while (< span-start span-end)
-      (setq syntax (char-syntax (char-after span-start)))
-      (cond
-       ((= syntax ?\s) t)
-       ((= syntax ?.) (setq syntax (char-after span-start))
-	(cond
-	 ((= syntax ?.) (setq result ?.))
-	 ((and (= syntax ?-) (= (char-after (+ span-start 1)) ?>))
-	  (setq result ?.)
-	  (setq span-start (+ span-start 1)))
-	 (t (setq span-start span-end)
-	    (setq result ??)))))
-      (setq span-start (+ span-start 1)))
-    result))
-
-(defun gud-expr-compound (first second)
-  "Non-nil if concatenating FIRST and SECOND makes a single C expression.
-The two exprs are represented as a cons cells, where the car
-specifies the point in the current buffer that marks the beginning of the
-expr and the cdr specifies the character after the end of the expr.
-Link exprs of the form:
-      Expr -> Expr
-      Expr . Expr
-      Expr (Expr)
-      Expr [Expr]
-      (Expr) Expr
-      [Expr] Expr"
-  (let ((span-start (cdr first))
-	(span-end (car second))
-	(syntax))
-    (setq syntax (gud-expr-compound-sep span-start span-end))
-    (cond
-     ((= (car first) (car second)) nil)
-     ((= (cdr first) (cdr second)) nil)
-     ((= syntax ?.) t)
-     ((= syntax ?\s)
-      (setq span-start (char-after (- span-start 1)))
-      (setq span-end (char-after span-end))
-      (cond
-       ((= span-start ?)) t)
-      ((= span-start ?]) t)
-     ((= span-end ?() t)
-      ((= span-end ?[) t)
-       (t nil)))
-     (t nil))))
-
-(defun gud-find-class (f line)
-  "Find fully qualified class in file F at line LINE.
-This function uses the `gud-jdb-classpath' (and optional
-`gud-jdb-sourcepath') list(s) to derive a file
-pathname relative to its classpath directory.  The values in
-`gud-jdb-classpath' are assumed to have been converted to absolute
-pathname standards using file-truename.
-If F is visited by a buffer and its mode is CC-mode(Java),
-syntactic information of LINE is used to find the enclosing (nested)
-class string which is appended to the top level
-class of the file (using s to separate nested class ids)."
-  ;; Convert f to a standard representation and remove suffix
-  (if (and gud-jdb-use-classpath (or gud-jdb-classpath gud-jdb-sourcepath))
-      (save-match-data
-        (let ((cplist (append gud-jdb-sourcepath gud-jdb-classpath))
-              (fbuffer (get-file-buffer f))
-              syntax-symbol syntax-point class-found)
-          (setq f (file-name-sans-extension (file-truename f)))
-          ;; Syntax-symbol returns the symbol of the *first* element
-          ;; in the syntactical analysis result list, syntax-point
-          ;; returns the buffer position of same
-          (fset 'syntax-symbol (lambda (x) (c-langelem-sym (car x))))
-          (fset 'syntax-point (lambda (x) (c-langelem-pos (car x))))
-          ;; Search through classpath list for an entry that is
-          ;; contained in f
-          (while (and cplist (not class-found))
-            (if (string-match (car cplist) f)
-                (setq class-found
-		      (mapconcat 'identity
-                                 (split-string
-                                   (substring f (+ (match-end 0) 1))
-                                  "/") ".")))
-            (setq cplist (cdr cplist)))
-          ;; if f is visited by a java(cc-mode) buffer, walk up the
-          ;; syntactic information chain and collect any 'inclass
-          ;; symbols until 'topmost-intro is reached to find out if
-          ;; point is within a nested class
-          (if (and fbuffer (equal (symbol-file 'java-mode) "cc-mode"))
-              (save-excursion
-                (set-buffer fbuffer)
-                (let ((nclass) (syntax))
-                  ;; While the c-syntactic information does not start
-                  ;; with the 'topmost-intro symbol, there may be
-                  ;; nested classes...
-                  (while (not (eq 'topmost-intro
-                                  (syntax-symbol (c-guess-basic-syntax))))
-                    ;; Check if the current position c-syntactic
-                    ;; analysis has 'inclass
-                    (setq syntax (c-guess-basic-syntax))
-                    (while
-                        (and (not (eq 'inclass (syntax-symbol syntax)))
-                             (cdr syntax))
-                      (setq syntax (cdr syntax)))
-                    (if (eq 'inclass (syntax-symbol syntax))
-                        (progn
-                          (goto-char (syntax-point syntax))
-                          ;; Now we're at the beginning of a class
-                          ;; definition.  Find class name
-                          (looking-at
-                           "[A-Za-z0-9 \t\n]*?class[ \t\n]+\\([^ \t\n]+\\)")
-                          (setq nclass
-                                (append (list (match-string-no-properties 1))
-                                        nclass)))
-                      (setq syntax (c-guess-basic-syntax))
-                      (while (and (not (syntax-point syntax)) (cdr syntax))
-                        (setq syntax (cdr syntax)))
-                      (goto-char (syntax-point syntax))
-                      ))
-                  (string-match (concat (car nclass) "$") class-found)
-                  (setq class-found
-                        (replace-match (mapconcat 'identity nclass "$")
-                                       t t class-found)))))
-          (if (not class-found)
-              (message "gud-find-class: class for file %s not found!" f))
-          class-found))
-    ;; Not using classpath - try class/source association list
-    (let ((class-found (rassoc f gud-jdb-class-source-alist)))
-      (if class-found
-	  (car class-found)
-	(message "gud-find-class: class for file %s not found in gud-jdb-class-source-alist!" f)
-	nil))))
-
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;; GDB script mode ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-(defvar gdb-script-mode-syntax-table
-  (let ((st (make-syntax-table)))
-    (modify-syntax-entry ?' "\"" st)
-    (modify-syntax-entry ?# "<" st)
-    (modify-syntax-entry ?\n ">" st)
-    st))
-
-(defvar gdb-script-font-lock-keywords
-  '(("^define\\s-+\\(\\(\\w\\|\\s_\\)+\\)" (1 font-lock-function-name-face))
-    ("\\$\\(\\w+\\)" (1 font-lock-variable-name-face))
-    ("^\\s-*\\(\\w\\(\\w\\|\\s_\\)*\\)" (1 font-lock-keyword-face))))
-
-(defvar gdb-script-font-lock-syntactic-keywords
-  '(("^document\\s-.*\\(\n\\)" (1 "< b"))
-    ("^end\\>"
-     (0 (unless (eq (match-beginning 0) (point-min))
-          ;; We change the \n in front, which is more difficult, but results
-          ;; in better highlighting.  If the doc is empty, the single \n is
-          ;; both the beginning and the end of the docstring, which can't be
-          ;; expressed in syntax-tables.  Instead, we place the "> b" after
-          ;; placing the "< b", so the start marker is overwritten by the
-          ;; termination marker and in the end Emacs simply considers that
-          ;; there's no docstring at all, which is fine.
-          (put-text-property (1- (match-beginning 0)) (match-beginning 0)
-                             'syntax-table (eval-when-compile
-                                             (string-to-syntax "> b")))
-          ;; Make sure that rehighlighting the previous line won't erase our
-          ;; syntax-table property.
-          (put-text-property (1- (match-beginning 0)) (match-end 0)
-                             'font-lock-multiline t)
-          nil)))))
-
-(defun gdb-script-font-lock-syntactic-face (state)
-  (cond
-   ((nth 3 state) font-lock-string-face)
-   ((nth 7 state) font-lock-doc-face)
-   (t font-lock-comment-face)))
-
-(defvar gdb-script-basic-indent 2)
-
-(defun gdb-script-skip-to-head ()
-  "We're just in front of an `end' and we need to go to its head."
-  (while (and (re-search-backward "^\\s-*\\(\\(end\\)\\|define\\|document\\|if\\|while\\|commands\\)\\>" nil 'move)
-	      (match-end 2))
-    (gdb-script-skip-to-head)))
-
-(defun gdb-script-calculate-indentation ()
-  (cond
-   ((looking-at "end\\>")
-    (gdb-script-skip-to-head)
-    (current-indentation))
-   ((looking-at "else\\>")
-    (while (and (re-search-backward "^\\s-*\\(if\\|\\(end\\)\\)\\>" nil 'move)
-		(match-end 2))
-      (gdb-script-skip-to-head))
-    (current-indentation))
-   (t
-    (forward-comment (- (point-max)))
-    (forward-line 0)
-    (skip-chars-forward " \t")
-    (+ (current-indentation)
-       (if (looking-at "\\(if\\|while\\|define\\|else\\|commands\\)\\>")
-	   gdb-script-basic-indent 0)))))
-
-(defun gdb-script-indent-line ()
-  "Indent current line of GDB script."
-  (interactive)
-  (if (and (eq (get-text-property (point) 'face) font-lock-doc-face)
-	   (save-excursion
-	     (forward-line 0)
-	     (skip-chars-forward " \t")
-	     (not (looking-at "end\\>"))))
-      'noindent
-    (let* ((savep (point))
-	   (indent (condition-case nil
-		       (save-excursion
-			 (forward-line 0)
-			 (skip-chars-forward " \t")
-			 (if (>= (point) savep) (setq savep nil))
-			 (max (gdb-script-calculate-indentation) 0))
-		     (error 0))))
-      (if savep
-	  (save-excursion (indent-line-to indent))
-	(indent-line-to indent)))))
-
-;; Derived from cfengine.el.
-(defun gdb-script-beginning-of-defun ()
-  "`beginning-of-defun' function for Gdb script mode.
-Treats actions as defuns."
-  (unless (<= (current-column) (current-indentation))
-    (end-of-line))
-  (if (re-search-backward "^define \\|^document " nil t)
-      (beginning-of-line)
-    (goto-char (point-min)))
-  t)
-
-;; Derived from cfengine.el.
-(defun gdb-script-end-of-defun ()
-  "`end-of-defun' function for Gdb script mode.
-Treats actions as defuns."
-  (end-of-line)
-  (if (re-search-forward "^end" nil t)
-      (beginning-of-line)
-    (goto-char (point-max)))
-  t)
-
-;; Besides .gdbinit, gdb documents other names to be usable for init
-;; files, cross-debuggers can use something like
-;; .PROCESSORNAME-gdbinit so that the host and target gdbinit files
-;; don't interfere with each other.
-;;;###autoload
-(add-to-list 'auto-mode-alist '("/\\.[a-z0-9-]*gdbinit" . gdb-script-mode))
-
-;;;###autoload
-(define-derived-mode gdb-script-mode nil "GDB-Script"
-  "Major mode for editing GDB scripts."
-  (set (make-local-variable 'comment-start) "#")
-  (set (make-local-variable 'comment-start-skip) "#+\\s-*")
-  (set (make-local-variable 'outline-regexp) "[ \t]")
-  (set (make-local-variable 'imenu-generic-expression)
-       '((nil "^define[ \t]+\\(\\w+\\)" 1)))
-  (set (make-local-variable 'indent-line-function) 'gdb-script-indent-line)
-  (set (make-local-variable 'beginning-of-defun-function)
-       #'gdb-script-beginning-of-defun)
-  (set (make-local-variable 'end-of-defun-function)
-       #'gdb-script-end-of-defun)
-  (set (make-local-variable 'font-lock-defaults)
-       '(gdb-script-font-lock-keywords nil nil ((?_ . "w")) nil
-	 (font-lock-syntactic-keywords
-	  . gdb-script-font-lock-syntactic-keywords)
-	 (font-lock-syntactic-face-function
-	  . gdb-script-font-lock-syntactic-face))))
-
-
-;;; tooltips for GUD
-
-;;; Customizable settings
-
-(define-minor-mode gud-tooltip-mode
-  "Toggle the display of GUD tooltips."
-  :global t
-  :group 'gud
-  :group 'tooltip
-  (require 'tooltip)
-  (if gud-tooltip-mode
-      (progn
-	(add-hook 'change-major-mode-hook 'gud-tooltip-change-major-mode)
-	(add-hook 'pre-command-hook 'tooltip-hide)
-	(add-hook 'tooltip-hook 'gud-tooltip-tips)
-	(define-key global-map [mouse-movement] 'gud-tooltip-mouse-motion))
-    (unless tooltip-mode (remove-hook 'pre-command-hook 'tooltip-hide)
-    (remove-hook 'change-major-mode-hook 'gud-tooltip-change-major-mode)
-    (remove-hook 'tooltip-hook 'gud-tooltip-tips)
-    (define-key global-map [mouse-movement] 'ignore)))
-  (gud-tooltip-activate-mouse-motions-if-enabled)
-  (if (and gud-comint-buffer
-	   (buffer-name gud-comint-buffer); gud-comint-buffer might be killed
-	   (memq (buffer-local-value 'gud-minor-mode gud-comint-buffer)
-		 '(gdbmi gdba)))
-      (if gud-tooltip-mode
-	  (progn
-	    (dolist (buffer (buffer-list))
-	      (unless (eq buffer gud-comint-buffer)
-		(with-current-buffer buffer
-		  (when (and (memq gud-minor-mode '(gdbmi gdba))
-			     (not (string-match "\\`\\*.+\\*\\'"
-						(buffer-name))))
-		    (make-local-variable 'gdb-define-alist)
-		    (gdb-create-define-alist)
-		    (add-hook 'after-save-hook
-			      'gdb-create-define-alist nil t))))))
-	(kill-local-variable 'gdb-define-alist)
-	(remove-hook 'after-save-hook 'gdb-create-define-alist t))))
-
-(defcustom gud-tooltip-modes '(gud-mode c-mode c++-mode fortran-mode
-					python-mode)
-  "List of modes for which to enable GUD tooltips."
-  :type 'sexp
-  :group 'gud
-  :group 'tooltip)
-
-(defcustom gud-tooltip-display
-  '((eq (tooltip-event-buffer gud-tooltip-event)
-	(marker-buffer gud-overlay-arrow-position)))
-  "List of forms determining where GUD tooltips are displayed.
-
-Forms in the list are combined with AND.  The default is to display
-only tooltips in the buffer containing the overlay arrow."
-  :type 'sexp
-  :group 'gud
-  :group 'tooltip)
-
-(defcustom gud-tooltip-echo-area nil
-  "Use the echo area instead of frames for GUD tooltips."
-  :type 'boolean
-  :group 'gud
-  :group 'tooltip)
-
-(define-obsolete-variable-alias 'tooltip-gud-modes
-                                'gud-tooltip-modes "22.1")
-(define-obsolete-variable-alias 'tooltip-gud-display
-                                'gud-tooltip-display "22.1")
-
-;;; Reacting on mouse movements
-
-(defun gud-tooltip-change-major-mode ()
-  "Function added to `change-major-mode-hook' when tooltip mode is on."
-  (add-hook 'post-command-hook 'gud-tooltip-activate-mouse-motions-if-enabled))
-
-(defun gud-tooltip-activate-mouse-motions-if-enabled ()
-  "Reconsider for all buffers whether mouse motion events are desired."
-  (remove-hook 'post-command-hook
-	       'gud-tooltip-activate-mouse-motions-if-enabled)
-  (dolist (buffer (buffer-list))
-    (save-excursion
-      (set-buffer buffer)
-      (if (and gud-tooltip-mode
-	       (memq major-mode gud-tooltip-modes))
-	  (gud-tooltip-activate-mouse-motions t)
-	(gud-tooltip-activate-mouse-motions nil)))))
-
-(defvar gud-tooltip-mouse-motions-active nil
-  "Locally t in a buffer if tooltip processing of mouse motion is enabled.")
-
-;; We don't set track-mouse globally because this is a big redisplay
-;; problem in buffers having a pre-command-hook or such installed,
-;; which does a set-buffer, like the summary buffer of Gnus.  Calling
-;; set-buffer prevents redisplay optimizations, so every mouse motion
-;; would be accompanied by a full redisplay.
-
-(defun gud-tooltip-activate-mouse-motions (activatep)
-  "Activate/deactivate mouse motion events for the current buffer.
-ACTIVATEP non-nil means activate mouse motion events."
-  (if activatep
-      (progn
-	(make-local-variable 'gud-tooltip-mouse-motions-active)
-	(setq gud-tooltip-mouse-motions-active t)
-	(make-local-variable 'track-mouse)
-	(setq track-mouse t))
-    (when gud-tooltip-mouse-motions-active
-      (kill-local-variable 'gud-tooltip-mouse-motions-active)
-      (kill-local-variable 'track-mouse))))
-
-(defun gud-tooltip-mouse-motion (event)
-  "Command handler for mouse movement events in `global-map'."
-  (interactive "e")
-  (tooltip-hide)
-  (when (car (mouse-pixel-position))
-    (setq tooltip-last-mouse-motion-event (copy-sequence event))
-    (tooltip-start-delayed-tip)))
-
-;;; Tips for `gud'
-
-(defvar gud-tooltip-original-filter nil
-  "Process filter to restore after GUD output has been received.")
-
-(defvar gud-tooltip-dereference nil
-  "Non-nil means print expressions with a `*' in front of them.
-For C this would dereference a pointer expression.")
-
-(defvar gud-tooltip-event nil
-  "The mouse movement event that led to a tooltip display.
-This event can be examined by forms in `gud-tooltip-display'.")
-
-(defun gud-tooltip-dereference (&optional arg)
-  "Toggle whether tooltips should show `* expr' or `expr'.
-With arg, dereference expr if ARG is positive, otherwise do not derereference."
- (interactive "P")
-  (setq gud-tooltip-dereference
-	(if (null arg)
-	    (not gud-tooltip-dereference)
-	  (> (prefix-numeric-value arg) 0)))
-  (message "Dereferencing is now %s."
-	   (if gud-tooltip-dereference "on" "off")))
-
-(define-obsolete-function-alias 'tooltip-gud-toggle-dereference
-                                'gud-tooltip-dereference "22.1")
-
-; This will only display data that comes in one chunk.
-; Larger arrays (say 400 elements) are displayed in
-; the tooltip incompletely and spill over into the gud buffer.
-; Switching the process-filter creates timing problems and
-; it may be difficult to do better. Using annotations as in
-; gdb-ui.el gets round this problem.
-(defun gud-tooltip-process-output (process output)
-  "Process debugger output and show it in a tooltip window."
-  (set-process-filter process gud-tooltip-original-filter)
-  (tooltip-show (tooltip-strip-prompt process output)
-		(or gud-tooltip-echo-area tooltip-use-echo-area)))
-
-(defun gud-tooltip-print-command (expr)
-  "Return a suitable command to print the expression EXPR."
-  (case gud-minor-mode
-        ; '-o' to print the objc object description if available
-        (lldb (concat "expression -o -- " expr))
-	(gdba (concat "server print " expr))
-	((dbx gdbmi) (concat "print " expr))
-	((xdb pdb) (concat "p " expr))
-	(sdb (concat expr "/"))))
-
-(defun gud-tooltip-tips (event)
-  "Show tip for identifier or selection under the mouse.
-The mouse must either point at an identifier or inside a selected
-region for the tip window to be shown.  If `gud-tooltip-dereference' is t,
-add a `*' in front of the printed expression.  In the case of a C program
-controlled by GDB, show the associated #define directives when program is
-not executing.
-
-This function must return nil if it doesn't handle EVENT."
-  (let (process)
-    (when (and (eventp event)
-	       gud-tooltip-mode
-	       gud-comint-buffer
-	       (buffer-name gud-comint-buffer); might be killed
-	       (setq process (get-buffer-process gud-comint-buffer))
-	       (posn-point (event-end event))
-	       (or (and (eq gud-minor-mode 'gdba) (not gdb-active-process))
-		   (progn (setq gud-tooltip-event event)
-			  (eval (cons 'and gud-tooltip-display)))))
-      (let ((expr (tooltip-expr-to-print event)))
-	(when expr
-	  (if (and (eq gud-minor-mode 'gdba)
-		   (not gdb-active-process))
-	      (progn
-		(with-current-buffer (tooltip-event-buffer event)
-		  (let ((define-elt (assoc expr gdb-define-alist)))
-		    (unless (null define-elt)
-		      (tooltip-show
-		       (cdr define-elt)
-		       (or gud-tooltip-echo-area tooltip-use-echo-area))
-		      expr))))
-	    (when gud-tooltip-dereference
-	      (setq expr (concat "*" expr)))
-	    (let ((cmd (gud-tooltip-print-command expr)))
-	      (when (and gud-tooltip-mode (eq gud-minor-mode 'gdb))
-		(gud-tooltip-mode -1)
-		(message-box "Using GUD tooltips in this mode is unsafe\n\
-so they have been disabled."))
-	      (unless (null cmd) ; CMD can be nil if unknown debugger
-		(if (memq gud-minor-mode '(gdba gdbmi))
-		      (if gdb-macro-info
-			  (gdb-enqueue-input
-			   (list (concat
-				  gdb-server-prefix "macro expand " expr "\n")
-				 `(lambda () (gdb-tooltip-print-1 ,expr))))
-			(gdb-enqueue-input
-			 (list  (concat cmd "\n")
- 				 `(lambda () (gdb-tooltip-print ,expr)))))
-		  (setq gud-tooltip-original-filter (process-filter process))
-		  (set-process-filter process 'gud-tooltip-process-output)
-		  (gud-basic-call cmd))
-		expr))))))))
-
-(provide 'gud)
-
-;;; arch-tag: 6d990948-df65-461a-be39-1c7fb83ac4c4
-;;; gud.el ends here
diff --git a/utils/emacs/lldb-gud-window.tiff b/utils/emacs/lldb-gud-window.tiff
deleted file mode 100644
index 5fdbe289f..000000000
--- a/utils/emacs/lldb-gud-window.tiff
+++ /dev/null