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6496f3d2 RS |
1 | ;;; gud.el --- Grand Unified Debugger mode for gdb, sdb, dbx, or xdb |
2 | ;;; under Emacs | |
f961a17c | 3 | |
ee0155df | 4 | ;; Author: Eric S. Raymond <esr@snark.thyrsus.com> |
8ba194fc | 5 | ;; Maintainer: FSF |
5b08a462 | 6 | ;; Version: 1.3 |
f961a17c ER |
7 | ;; Keywords: unix, tools |
8 | ||
d733c5ec | 9 | ;; Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. |
13b80a60 ER |
10 | |
11 | ;; This file is part of GNU Emacs. | |
12 | ||
13 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
14 | ;; it under the terms of the GNU General Public License as published by | |
24d725c2 | 15 | ;; the Free Software Foundation; either version 2, or (at your option) |
13b80a60 ER |
16 | ;; any later version. |
17 | ||
18 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | ;; GNU General Public License for more details. | |
22 | ||
23 | ;; You should have received a copy of the GNU General Public License | |
24 | ;; along with GNU Emacs; see the file COPYING. If not, write to | |
25 | ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
26 | ||
f961a17c ER |
27 | ;;; Commentary: |
28 | ||
13b80a60 | 29 | ;; The ancestral gdb.el was by W. Schelter <wfs@rascal.ics.utexas.edu> |
24d725c2 | 30 | ;; It was later rewritten by rms. Some ideas were due to Masanobu. |
f961a17c | 31 | ;; Grand Unification (sdb/dbx support) by Eric S. Raymond <esr@thyrsus.com> |
13b80a60 | 32 | ;; The overloading code was then rewritten by Barry Warsaw <bwarsaw@cen.com>, |
6496f3d2 | 33 | ;; who also hacked the mode to use comint.el. Shane Hartman <shane@spr.com> |
0e0de659 | 34 | ;; added support for xdb (HPUX debugger). Rick Sladkey <jrs@world.std.com> |
f266485d RS |
35 | ;; wrote the GDB command completion code. Dave Love <d.love@dl.ac.uk> |
36 | ;; added the IRIX kluge and re-implemented the Mips-ish variant. | |
13b80a60 | 37 | |
f961a17c ER |
38 | ;;; Code: |
39 | ||
13b80a60 | 40 | (require 'comint) |
e8a57935 | 41 | (require 'etags) |
13b80a60 | 42 | |
ee0155df | 43 | ;; ====================================================================== |
5b08a462 | 44 | ;; GUD commands must be visible in C buffers visited by GUD |
ee0155df | 45 | |
45025813 | 46 | (defvar gud-key-prefix "\C-x\C-a" |
5b08a462 | 47 | "Prefix of all GUD commands valid in C buffers.") |
ee0155df | 48 | |
5b08a462 | 49 | (global-set-key (concat gud-key-prefix "\C-l") 'gud-refresh) |
16776e8d | 50 | (define-key ctl-x-map " " 'gud-break) ;; backward compatibility hack |
ee0155df | 51 | |
13b80a60 ER |
52 | ;; ====================================================================== |
53 | ;; the overloading mechanism | |
54 | ||
55 | (defun gud-overload-functions (gud-overload-alist) | |
56 | "Overload functions defined in GUD-OVERLOAD-ALIST. | |
57 | This association list has elements of the form | |
13b80a60 | 58 | (ORIGINAL-FUNCTION-NAME OVERLOAD-FUNCTION)" |
24d725c2 ER |
59 | (mapcar |
60 | (function (lambda (p) (fset (car p) (symbol-function (cdr p))))) | |
61 | gud-overload-alist)) | |
13b80a60 | 62 | |
a223b10d | 63 | (defun gud-massage-args (file args) |
8f6c93e2 | 64 | (error "GUD not properly entered")) |
13b80a60 | 65 | |
ee0155df | 66 | (defun gud-marker-filter (str) |
8f6c93e2 | 67 | (error "GUD not properly entered")) |
13b80a60 | 68 | |
ee0155df | 69 | (defun gud-find-file (f) |
8f6c93e2 | 70 | (error "GUD not properly entered")) |
575661b1 | 71 | \f |
ee0155df ER |
72 | ;; ====================================================================== |
73 | ;; command definition | |
13b80a60 ER |
74 | |
75 | ;; This macro is used below to define some basic debugger interface commands. | |
f961a17c | 76 | ;; Of course you may use `gud-def' with any other debugger command, including |
6bde8427 JB |
77 | ;; user defined ones. |
78 | ||
79 | ;; A macro call like (gud-def FUNC NAME KEY DOC) expands to a form | |
80 | ;; which defines FUNC to send the command NAME to the debugger, gives | |
ee0155df | 81 | ;; it the docstring DOC, and binds that function to KEY in the GUD |
5b08a462 ER |
82 | ;; major mode. The function is also bound in the global keymap with the |
83 | ;; GUD prefix. | |
ee0155df ER |
84 | |
85 | (defmacro gud-def (func cmd key &optional doc) | |
86 | "Define FUNC to be a command sending STR and bound to KEY, with | |
87 | optional doc string DOC. Certain %-escapes in the string arguments | |
88 | are interpreted specially if present. These are: | |
89 | ||
7f359a21 RS |
90 | %f name (without directory) of current source file. |
91 | %d directory of current source file. | |
ee0155df ER |
92 | %l number of current source line |
93 | %e text of the C lvalue or function-call expression surrounding point. | |
94 | %a text of the hexadecimal address surrounding point | |
95 | %p prefix argument to the command (if any) as a number | |
96 | ||
5b08a462 ER |
97 | The `current' source file is the file of the current buffer (if |
98 | we're in a C file) or the source file current at the last break or | |
99 | step (if we're in the GUD buffer). | |
100 | The `current' line is that of the current buffer (if we're in a | |
101 | source file) or the source line number at the last break or step (if | |
102 | we're in the GUD buffer)." | |
ee0155df ER |
103 | (list 'progn |
104 | (list 'defun func '(arg) | |
105 | (or doc "") | |
106 | '(interactive "p") | |
107 | (list 'gud-call cmd 'arg)) | |
108 | (if key | |
dd8e46c7 RS |
109 | (list 'define-key |
110 | '(current-local-map) | |
111 | (concat "\C-c" key) | |
112 | (list 'quote func))) | |
113 | (if key | |
114 | (list 'global-set-key | |
2352cbea | 115 | (list 'concat 'gud-key-prefix key) |
dd8e46c7 | 116 | (list 'quote func))))) |
13b80a60 | 117 | |
d840a865 JB |
118 | ;; Where gud-display-frame should put the debugging arrow. This is |
119 | ;; set by the marker-filter, which scans the debugger's output for | |
ee0155df | 120 | ;; indications of the current program counter. |
d840a865 JB |
121 | (defvar gud-last-frame nil) |
122 | ||
32ab4c10 JB |
123 | ;; Used by gud-refresh, which should cause gud-display-frame to redisplay |
124 | ;; the last frame, even if it's been called before and gud-last-frame has | |
125 | ;; been set to nil. | |
7447c37a | 126 | (defvar gud-last-last-frame nil) |
32ab4c10 | 127 | |
ee0155df ER |
128 | ;; All debugger-specific information is collected here. |
129 | ;; Here's how it works, in case you ever need to add a debugger to the mode. | |
13b80a60 ER |
130 | ;; |
131 | ;; Each entry must define the following at startup: | |
132 | ;; | |
133 | ;;<name> | |
134 | ;; comint-prompt-regexp | |
a223b10d | 135 | ;; gud-<name>-massage-args |
13b80a60 | 136 | ;; gud-<name>-marker-filter |
ee0155df | 137 | ;; gud-<name>-find-file |
13b80a60 | 138 | ;; |
a223b10d RM |
139 | ;; The job of the massage-args method is to modify the given list of |
140 | ;; debugger arguments before running the debugger. | |
10a4c11f JB |
141 | ;; |
142 | ;; The job of the marker-filter method is to detect file/line markers in | |
143 | ;; strings and set the global gud-last-frame to indicate what display | |
144 | ;; action (if any) should be triggered by the marker. Note that only | |
eb8c3be9 | 145 | ;; whatever the method *returns* is displayed in the buffer; thus, you |
10a4c11f JB |
146 | ;; can filter the debugger's output, interpreting some and passing on |
147 | ;; the rest. | |
148 | ;; | |
ee0155df | 149 | ;; The job of the find-file method is to visit and return the buffer indicated |
10a4c11f JB |
150 | ;; by the car of gud-tag-frame. This may be a file name, a tag name, or |
151 | ;; something else. | |
575661b1 | 152 | \f |
13b80a60 ER |
153 | ;; ====================================================================== |
154 | ;; gdb functions | |
155 | ||
f6376199 JB |
156 | ;;; History of argument lists passed to gdb. |
157 | (defvar gud-gdb-history nil) | |
158 | ||
a223b10d RM |
159 | (defun gud-gdb-massage-args (file args) |
160 | (cons "-fullname" (cons file args))) | |
13b80a60 | 161 | |
768c29d0 JB |
162 | ;; There's no guarantee that Emacs will hand the filter the entire |
163 | ;; marker at once; it could be broken up across several strings. We | |
164 | ;; might even receive a big chunk with several markers in it. If we | |
165 | ;; receive a chunk of text which looks like it might contain the | |
166 | ;; beginning of a marker, we save it here between calls to the | |
167 | ;; filter. | |
f266485d | 168 | (defvar gud-marker-acc "") |
0d29cfe9 | 169 | (make-variable-buffer-local 'gud-marker-acc) |
768c29d0 | 170 | |
ee0155df | 171 | (defun gud-gdb-marker-filter (string) |
304188d6 | 172 | (save-match-data |
f266485d | 173 | (setq gud-marker-acc (concat gud-marker-acc string)) |
304188d6 JB |
174 | (let ((output "")) |
175 | ||
176 | ;; Process all the complete markers in this chunk. | |
76214250 | 177 | (while (string-match "\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n" |
f266485d | 178 | gud-marker-acc) |
304188d6 JB |
179 | (setq |
180 | ||
181 | ;; Extract the frame position from the marker. | |
182 | gud-last-frame | |
f266485d RS |
183 | (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) |
184 | (string-to-int (substring gud-marker-acc | |
304188d6 JB |
185 | (match-beginning 2) |
186 | (match-end 2)))) | |
187 | ||
188 | ;; Append any text before the marker to the output we're going | |
189 | ;; to return - we don't include the marker in this text. | |
190 | output (concat output | |
f266485d | 191 | (substring gud-marker-acc 0 (match-beginning 0))) |
304188d6 JB |
192 | |
193 | ;; Set the accumulator to the remaining text. | |
f266485d | 194 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) |
304188d6 JB |
195 | |
196 | ;; Does the remaining text look like it might end with the | |
197 | ;; beginning of another marker? If it does, then keep it in | |
f266485d | 198 | ;; gud-marker-acc until we receive the rest of it. Since we |
304188d6 JB |
199 | ;; know the full marker regexp above failed, it's pretty simple to |
200 | ;; test for marker starts. | |
76214250 | 201 | (if (string-match "\032.*\\'" gud-marker-acc) |
304188d6 JB |
202 | (progn |
203 | ;; Everything before the potential marker start can be output. | |
f266485d | 204 | (setq output (concat output (substring gud-marker-acc |
304188d6 JB |
205 | 0 (match-beginning 0)))) |
206 | ||
207 | ;; Everything after, we save, to combine with later input. | |
f266485d RS |
208 | (setq gud-marker-acc |
209 | (substring gud-marker-acc (match-beginning 0)))) | |
304188d6 | 210 | |
f266485d RS |
211 | (setq output (concat output gud-marker-acc) |
212 | gud-marker-acc "")) | |
304188d6 JB |
213 | |
214 | output))) | |
13b80a60 | 215 | |
ee0155df | 216 | (defun gud-gdb-find-file (f) |
13b80a60 ER |
217 | (find-file-noselect f)) |
218 | ||
e886137a KH |
219 | (defvar gdb-minibuffer-local-map nil |
220 | "Keymap for minibuffer prompting of gdb startup command.") | |
221 | (if gdb-minibuffer-local-map | |
222 | () | |
223 | (setq gdb-minibuffer-local-map (copy-keymap minibuffer-local-map)) | |
224 | (define-key | |
225 | gdb-minibuffer-local-map "\C-i" 'comint-dynamic-complete-filename)) | |
226 | ||
10a4c11f | 227 | ;;;###autoload |
a223b10d | 228 | (defun gdb (command-line) |
13b80a60 ER |
229 | "Run gdb on program FILE in buffer *gud-FILE*. |
230 | The directory containing FILE becomes the initial working directory | |
231 | and source-file directory for your debugger." | |
f6376199 | 232 | (interactive |
a223b10d | 233 | (list (read-from-minibuffer "Run gdb (like this): " |
f6376199 JB |
234 | (if (consp gud-gdb-history) |
235 | (car gud-gdb-history) | |
a223b10d | 236 | "gdb ") |
e886137a | 237 | gdb-minibuffer-local-map nil |
f6376199 | 238 | '(gud-gdb-history . 1)))) |
a223b10d RM |
239 | (gud-overload-functions '((gud-massage-args . gud-gdb-massage-args) |
240 | (gud-marker-filter . gud-gdb-marker-filter) | |
241 | (gud-find-file . gud-gdb-find-file) | |
ee0155df ER |
242 | )) |
243 | ||
a223b10d | 244 | (gud-common-init command-line) |
5b08a462 | 245 | |
dd8e46c7 RS |
246 | (gud-def gud-break "break %f:%l" "\C-b" "Set breakpoint at current line.") |
247 | (gud-def gud-tbreak "tbreak %f:%l" "\C-t" "Set breakpoint at current line.") | |
248 | (gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line") | |
249 | (gud-def gud-step "step %p" "\C-s" "Step one source line with display.") | |
250 | (gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.") | |
251 | (gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).") | |
252 | (gud-def gud-cont "cont" "\C-r" "Continue with display.") | |
253 | (gud-def gud-finish "finish" "\C-f" "Finish executing current function.") | |
ee0155df ER |
254 | (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).") |
255 | (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).") | |
dd8e46c7 | 256 | (gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.") |
ee0155df | 257 | |
0e0de659 | 258 | (local-set-key "\C-i" 'gud-gdb-complete-command) |
13b80a60 | 259 | (setq comint-prompt-regexp "^(.*gdb[+]?) *") |
f54877b2 | 260 | (setq paragraph-start comint-prompt-regexp) |
13b80a60 ER |
261 | (run-hooks 'gdb-mode-hook) |
262 | ) | |
263 | ||
0e0de659 RS |
264 | ;; One of the nice features of GDB is its impressive support for |
265 | ;; context-sensitive command completion. We preserve that feature | |
266 | ;; in the GUD buffer by using a GDB command designed just for Emacs. | |
267 | ||
268 | ;; The completion process filter indicates when it is finished. | |
269 | (defvar gud-gdb-complete-in-progress) | |
270 | ||
271 | ;; Since output may arrive in fragments we accumulate partials strings here. | |
272 | (defvar gud-gdb-complete-string) | |
273 | ||
274 | ;; We need to know how much of the completion to chop off. | |
275 | (defvar gud-gdb-complete-break) | |
276 | ||
277 | ;; The completion list is constructed by the process filter. | |
278 | (defvar gud-gdb-complete-list) | |
279 | ||
30df2a53 RS |
280 | (defvar gud-comint-buffer nil) |
281 | ||
0e0de659 RS |
282 | (defun gud-gdb-complete-command () |
283 | "Perform completion on the GDB command preceding point. | |
284 | This is implemented using the GDB `complete' command which isn't | |
285 | available with older versions of GDB." | |
286 | (interactive) | |
287 | (let* ((end (point)) | |
288 | (command (save-excursion | |
289 | (beginning-of-line) | |
290 | (and (looking-at comint-prompt-regexp) | |
291 | (goto-char (match-end 0))) | |
292 | (buffer-substring (point) end))) | |
293 | command-word) | |
294 | ;; Find the word break. This match will always succeed. | |
295 | (string-match "\\(\\`\\| \\)\\([^ ]*\\)\\'" command) | |
296 | (setq gud-gdb-complete-break (match-beginning 2) | |
297 | command-word (substring command gud-gdb-complete-break)) | |
298 | (unwind-protect | |
299 | (progn | |
300 | ;; Temporarily install our filter function. | |
301 | (gud-overload-functions | |
302 | '((gud-marker-filter . gud-gdb-complete-filter))) | |
303 | ;; Issue the command to GDB. | |
304 | (gud-basic-call (concat "complete " command)) | |
305 | (setq gud-gdb-complete-in-progress t | |
306 | gud-gdb-complete-string nil | |
307 | gud-gdb-complete-list nil) | |
308 | ;; Slurp the output. | |
309 | (while gud-gdb-complete-in-progress | |
310 | (accept-process-output (get-buffer-process gud-comint-buffer)))) | |
311 | ;; Restore the old filter function. | |
312 | (gud-overload-functions '((gud-marker-filter . gud-gdb-marker-filter)))) | |
313 | ;; Protect against old versions of GDB. | |
314 | (and gud-gdb-complete-list | |
315 | (string-match "^Undefined command: \"complete\"" | |
316 | (car gud-gdb-complete-list)) | |
317 | (error "This version of GDB doesn't support the `complete' command.")) | |
318 | ;; Sort the list like readline. | |
319 | (setq gud-gdb-complete-list | |
320 | (sort gud-gdb-complete-list (function string-lessp))) | |
321 | ;; Remove duplicates. | |
322 | (let ((first gud-gdb-complete-list) | |
323 | (second (cdr gud-gdb-complete-list))) | |
324 | (while second | |
325 | (if (string-equal (car first) (car second)) | |
326 | (setcdr first (setq second (cdr second))) | |
327 | (setq first second | |
328 | second (cdr second))))) | |
329 | ;; Let comint handle the rest. | |
330 | (comint-dynamic-simple-complete command-word gud-gdb-complete-list))) | |
331 | ||
332 | ;; The completion process filter is installed temporarily to slurp the | |
333 | ;; output of GDB up to the next prompt and build the completion list. | |
334 | (defun gud-gdb-complete-filter (string) | |
335 | (setq string (concat gud-gdb-complete-string string)) | |
336 | (while (string-match "\n" string) | |
337 | (setq gud-gdb-complete-list | |
338 | (cons (substring string gud-gdb-complete-break (match-beginning 0)) | |
339 | gud-gdb-complete-list)) | |
340 | (setq string (substring string (match-end 0)))) | |
341 | (if (string-match comint-prompt-regexp string) | |
342 | (progn | |
343 | (setq gud-gdb-complete-in-progress nil) | |
344 | string) | |
345 | (progn | |
346 | (setq gud-gdb-complete-string string) | |
347 | ""))) | |
348 | ||
575661b1 | 349 | \f |
13b80a60 ER |
350 | ;; ====================================================================== |
351 | ;; sdb functions | |
352 | ||
f6376199 JB |
353 | ;;; History of argument lists passed to sdb. |
354 | (defvar gud-sdb-history nil) | |
355 | ||
ee0155df ER |
356 | (defvar gud-sdb-needs-tags (not (file-exists-p "/var")) |
357 | "If nil, we're on a System V Release 4 and don't need the tags hack.") | |
358 | ||
359 | (defvar gud-sdb-lastfile nil) | |
360 | ||
a223b10d RM |
361 | (defun gud-sdb-massage-args (file args) |
362 | (cons file args)) | |
13b80a60 | 363 | |
ee0155df ER |
364 | (defun gud-sdb-marker-filter (string) |
365 | (cond | |
366 | ;; System V Release 3.2 uses this format | |
367 | ((string-match "\\(^0x\\w* in \\|^\\|\n\\)\\([^:\n]*\\):\\([0-9]*\\):.*\n" | |
6bde8427 | 368 | string) |
ee0155df ER |
369 | (setq gud-last-frame |
370 | (cons | |
371 | (substring string (match-beginning 2) (match-end 2)) | |
372 | (string-to-int | |
373 | (substring string (match-beginning 3) (match-end 3)))))) | |
374 | ;; System V Release 4.0 | |
375 | ((string-match "^\\(BREAKPOINT\\|STEPPED\\) process [0-9]+ function [^ ]+ in \\(.+\\)\n" | |
376 | string) | |
377 | (setq gud-sdb-lastfile | |
378 | (substring string (match-beginning 2) (match-end 2)))) | |
379 | ((and gud-sdb-lastfile (string-match "^\\([0-9]+\\):" string)) | |
380 | (setq gud-last-frame | |
381 | (cons | |
382 | gud-sdb-lastfile | |
383 | (string-to-int | |
384 | (substring string (match-beginning 1) (match-end 1)))))) | |
385 | (t | |
386 | (setq gud-sdb-lastfile nil))) | |
13b80a60 ER |
387 | string) |
388 | ||
ee0155df ER |
389 | (defun gud-sdb-find-file (f) |
390 | (if gud-sdb-needs-tags | |
391 | (find-tag-noselect f) | |
392 | (find-file-noselect f))) | |
13b80a60 | 393 | |
10a4c11f | 394 | ;;;###autoload |
a223b10d | 395 | (defun sdb (command-line) |
13b80a60 ER |
396 | "Run sdb on program FILE in buffer *gud-FILE*. |
397 | The directory containing FILE becomes the initial working directory | |
398 | and source-file directory for your debugger." | |
f6376199 | 399 | (interactive |
a223b10d | 400 | (list (read-from-minibuffer "Run sdb (like this): " |
f6376199 JB |
401 | (if (consp gud-sdb-history) |
402 | (car gud-sdb-history) | |
a223b10d | 403 | "sdb ") |
f6376199 JB |
404 | nil nil |
405 | '(gud-sdb-history . 1)))) | |
ee0155df | 406 | (if (and gud-sdb-needs-tags |
e290aebb RS |
407 | (not (and (boundp 'tags-file-name) |
408 | (stringp tags-file-name) | |
409 | (file-exists-p tags-file-name)))) | |
13b80a60 | 410 | (error "The sdb support requires a valid tags table to work.")) |
a223b10d RM |
411 | (gud-overload-functions '((gud-massage-args . gud-sdb-massage-args) |
412 | (gud-marker-filter . gud-sdb-marker-filter) | |
413 | (gud-find-file . gud-sdb-find-file) | |
ee0155df | 414 | )) |
13b80a60 | 415 | |
a223b10d | 416 | (gud-common-init command-line) |
5b08a462 | 417 | |
dd8e46c7 RS |
418 | (gud-def gud-break "%l b" "\C-b" "Set breakpoint at current line.") |
419 | (gud-def gud-tbreak "%l c" "\C-t" "Set temporary breakpoint at current line.") | |
420 | (gud-def gud-remove "%l d" "\C-d" "Remove breakpoint at current line") | |
421 | (gud-def gud-step "s %p" "\C-s" "Step one source line with display.") | |
422 | (gud-def gud-stepi "i %p" "\C-i" "Step one instruction with display.") | |
423 | (gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).") | |
424 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
425 | (gud-def gud-print "%e/" "\C-p" "Evaluate C expression at point.") | |
13b80a60 | 426 | |
6bde8427 | 427 | (setq comint-prompt-regexp "\\(^\\|\n\\)\\*") |
f54877b2 | 428 | (setq paragraph-start comint-prompt-regexp) |
13b80a60 ER |
429 | (run-hooks 'sdb-mode-hook) |
430 | ) | |
575661b1 | 431 | \f |
13b80a60 ER |
432 | ;; ====================================================================== |
433 | ;; dbx functions | |
434 | ||
f6376199 JB |
435 | ;;; History of argument lists passed to dbx. |
436 | (defvar gud-dbx-history nil) | |
437 | ||
a223b10d RM |
438 | (defun gud-dbx-massage-args (file args) |
439 | (cons file args)) | |
13b80a60 | 440 | |
ee0155df | 441 | (defun gud-dbx-marker-filter (string) |
107a16d1 RS |
442 | (if (or (string-match |
443 | "stopped in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\"" | |
444 | string) | |
445 | (string-match | |
446 | "signal .* in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\"" | |
447 | string)) | |
13b80a60 ER |
448 | (setq gud-last-frame |
449 | (cons | |
450 | (substring string (match-beginning 2) (match-end 2)) | |
451 | (string-to-int | |
452 | (substring string (match-beginning 1) (match-end 1)))))) | |
453 | string) | |
454 | ||
f266485d RS |
455 | ;; Functions for Mips-style dbx. Given the option `-emacs', documented in |
456 | ;; OSF1, not necessarily elsewhere, it produces markers similar to gdb's. | |
457 | (defvar gud-mips-p | |
458 | (or (string-match "^mips-[^-]*-ultrix" system-configuration) | |
459 | ;; We haven't tested gud on this system: | |
460 | (string-match "^mips-[^-]*-riscos" system-configuration) | |
461 | ;; It's documented on OSF/1.3 | |
9f24ea14 RS |
462 | (string-match "^mips-[^-]*-osf1" system-configuration) |
463 | (string-match "^alpha-[^-]*-osf" system-configuration)) | |
f266485d | 464 | "Non-nil to assume the MIPS/OSF dbx conventions (argument `-emacs').") |
13eaa026 RS |
465 | |
466 | (defun gud-mipsdbx-massage-args (file args) | |
467 | (cons "-emacs" (cons file args))) | |
468 | ||
f266485d RS |
469 | ;; This is just like the gdb one except for the regexps since we need to cope |
470 | ;; with an optional breakpoint number in [] before the ^Z^Z | |
13eaa026 RS |
471 | (defun gud-mipsdbx-marker-filter (string) |
472 | (save-match-data | |
f266485d | 473 | (setq gud-marker-acc (concat gud-marker-acc string)) |
13eaa026 RS |
474 | (let ((output "")) |
475 | ||
476 | ;; Process all the complete markers in this chunk. | |
477 | (while (string-match | |
f266485d RS |
478 | ;; This is like th gdb marker but with an optional |
479 | ;; leading break point number like `[1] ' | |
76214250 | 480 | "[][ 0-9]*\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n" |
f266485d | 481 | gud-marker-acc) |
13eaa026 RS |
482 | (setq |
483 | ||
484 | ;; Extract the frame position from the marker. | |
f266485d RS |
485 | gud-last-frame |
486 | (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) | |
487 | (string-to-int (substring gud-marker-acc | |
488 | (match-beginning 2) | |
489 | (match-end 2)))) | |
13eaa026 RS |
490 | |
491 | ;; Append any text before the marker to the output we're going | |
492 | ;; to return - we don't include the marker in this text. | |
f266485d RS |
493 | output (concat output |
494 | (substring gud-marker-acc 0 (match-beginning 0))) | |
13eaa026 RS |
495 | |
496 | ;; Set the accumulator to the remaining text. | |
f266485d | 497 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) |
13eaa026 RS |
498 | |
499 | ;; Does the remaining text look like it might end with the | |
500 | ;; beginning of another marker? If it does, then keep it in | |
f266485d RS |
501 | ;; gud-marker-acc until we receive the rest of it. Since we |
502 | ;; know the full marker regexp above failed, it's pretty simple to | |
503 | ;; test for marker starts. | |
76214250 | 504 | (if (string-match "[][ 0-9]*\032.*\\'" gud-marker-acc) |
f266485d RS |
505 | (progn |
506 | ;; Everything before the potential marker start can be output. | |
507 | (setq output (concat output (substring gud-marker-acc | |
508 | 0 (match-beginning 0)))) | |
509 | ||
510 | ;; Everything after, we save, to combine with later input. | |
511 | (setq gud-marker-acc | |
512 | (substring gud-marker-acc (match-beginning 0)))) | |
513 | ||
514 | (setq output (concat output gud-marker-acc) | |
515 | gud-marker-acc "")) | |
13eaa026 RS |
516 | |
517 | output))) | |
518 | ||
f266485d RS |
519 | ;; The dbx in IRIX is a pain. It doesn't print the file name when |
520 | ;; stopping at a breakpoint (but you do get it from the `up' and | |
521 | ;; `down' commands...). The only way to extract the information seems | |
522 | ;; to be with a `file' command, although the current line number is | |
523 | ;; available in $curline. Thus we have to look for output which | |
524 | ;; appears to indicate a breakpoint. Then we prod the dbx sub-process | |
525 | ;; to output the information we want with a combination of the | |
526 | ;; `printf' and `file' commands as a pseudo marker which we can | |
527 | ;; recognise next time through the marker-filter. This would be like | |
528 | ;; the gdb marker but you can't get the file name without a newline... | |
529 | ;; Note that gud-remove won't work since Irix dbx expects a breakpoint | |
530 | ;; number rather than a line number etc. Maybe this could be made to | |
531 | ;; work by listing all the breakpoints and picking the one(s) with the | |
532 | ;; correct line number, but life's too short. | |
533 | ;; d.love@dl.ac.uk (Dave Love) can be blamed for this | |
534 | ||
535 | (defvar gud-irix-p (string-match "^mips-[^-]*-irix" system-configuration) | |
536 | "Non-nil to assume the interface appropriate for IRIX dbx. | |
537 | This works in IRIX 4 and probably IRIX 5.") | |
538 | ;; (It's been tested in IRIX 4 and the output from dbx on IRIX 5 looks | |
539 | ;; the same.) | |
540 | ||
541 | ;; this filter is influenced by the xdb one rather than the gdb one | |
542 | (defun gud-irixdbx-marker-filter (string) | |
543 | (save-match-data | |
544 | (let (result (case-fold-search nil)) | |
545 | (if (or (string-match comint-prompt-regexp string) | |
546 | (string-match ".*\012" string)) | |
547 | (setq result (concat gud-marker-acc string) | |
548 | gud-marker-acc "") | |
549 | (setq gud-marker-acc (concat gud-marker-acc string))) | |
550 | (if result | |
551 | (cond | |
552 | ;; look for breakpoint or signal indication e.g.: | |
553 | ;; [2] Process 1267 (pplot) stopped at [params:338 ,0x400ec0] | |
554 | ;; Process 1281 (pplot) stopped at [params:339 ,0x400ec8] | |
555 | ;; Process 1270 (pplot) Floating point exception [._read._read:16 ,0x452188] | |
556 | ((string-match | |
557 | "^\\(\\[[0-9]+] \\)?Process +[0-9]+ ([^)]*) [^[]+\\[[^]\n]*]\n" | |
558 | result) | |
559 | ;; prod dbx into printing out the line number and file | |
560 | ;; name in a form we can grok as below | |
561 | (process-send-string (get-buffer-process gud-comint-buffer) | |
562 | "printf \"\032\032%1d:\",$curline;file\n")) | |
563 | ;; look for result of, say, "up" e.g.: | |
564 | ;; .pplot.pplot(0x800) ["src/pplot.f":261, 0x400c7c] | |
565 | ;; (this will also catch one of the lines printed by "where") | |
566 | ((string-match | |
567 | "^[^ ][^[]*\\[\"\\([^\"]+\\)\":\\([0-9]+\\), [^]]+]\n" | |
568 | result) | |
569 | (let ((file (substring result (match-beginning 1) | |
570 | (match-end 1)))) | |
571 | (if (file-exists-p file) | |
572 | (setq gud-last-frame | |
573 | (cons | |
574 | (substring | |
575 | result (match-beginning 1) (match-end 1)) | |
576 | (string-to-int | |
577 | (substring | |
578 | result (match-beginning 2) (match-end 2))))))) | |
579 | result) | |
580 | ((string-match ; kluged-up marker as above | |
581 | "\032\032\\([0-9]*\\):\\(.*\\)\n" result) | |
582 | (let ((file (substring result (match-beginning 2) (match-end 2)))) | |
583 | (if (file-exists-p file) | |
584 | (setq gud-last-frame | |
585 | (cons | |
586 | file | |
587 | (string-to-int | |
588 | (substring | |
589 | result (match-beginning 1) (match-end 1))))))) | |
590 | (setq result (substring result 0 (match-beginning 0)))))) | |
591 | (or result "")))) | |
592 | ||
ee0155df | 593 | (defun gud-dbx-find-file (f) |
13b80a60 ER |
594 | (find-file-noselect f)) |
595 | ||
10a4c11f | 596 | ;;;###autoload |
a223b10d | 597 | (defun dbx (command-line) |
13b80a60 ER |
598 | "Run dbx on program FILE in buffer *gud-FILE*. |
599 | The directory containing FILE becomes the initial working directory | |
600 | and source-file directory for your debugger." | |
f6376199 | 601 | (interactive |
a223b10d | 602 | (list (read-from-minibuffer "Run dbx (like this): " |
f6376199 JB |
603 | (if (consp gud-dbx-history) |
604 | (car gud-dbx-history) | |
a223b10d | 605 | "dbx ") |
f6376199 JB |
606 | nil nil |
607 | '(gud-dbx-history . 1)))) | |
13eaa026 RS |
608 | |
609 | (gud-overload-functions | |
610 | (cond | |
f266485d | 611 | (gud-mips-p |
13eaa026 RS |
612 | '((gud-massage-args . gud-mipsdbx-massage-args) |
613 | (gud-marker-filter . gud-mipsdbx-marker-filter) | |
614 | (gud-find-file . gud-dbx-find-file))) | |
f266485d RS |
615 | (gud-irix-p |
616 | '((gud-massage-args . gud-dbx-massage-args) | |
617 | (gud-marker-filter . gud-irixdbx-marker-filter) | |
618 | (gud-find-file . gud-dbx-find-file))) | |
13eaa026 RS |
619 | (t |
620 | '((gud-massage-args . gud-dbx-massage-args) | |
621 | (gud-marker-filter . gud-dbx-marker-filter) | |
622 | (gud-find-file . gud-dbx-find-file))))) | |
ee0155df | 623 | |
a223b10d | 624 | (gud-common-init command-line) |
5b08a462 | 625 | |
13eaa026 | 626 | (cond |
f266485d | 627 | (gud-mips-p |
13eaa026 RS |
628 | (gud-def gud-break "stop at \"%f\":%l" |
629 | "\C-b" "Set breakpoint at current line.") | |
630 | (gud-def gud-finish "return" "\C-f" "Finish executing current function.")) | |
f266485d RS |
631 | (gud-irix-p |
632 | (gud-def gud-break "stop at \"%d%f\":%l" | |
633 | "\C-b" "Set breakpoint at current line.") | |
634 | (gud-def gud-finish "return" "\C-f" "Finish executing current function.") | |
635 | ;; Make dbx give out the source location info that we need. | |
636 | (process-send-string (get-buffer-process gud-comint-buffer) | |
637 | "printf \"\032\032%1d:\",$curline;file\n")) | |
13eaa026 RS |
638 | (t |
639 | (gud-def gud-break "file \"%d%f\"\nstop at %l" | |
640 | "\C-b" "Set breakpoint at current line."))) | |
641 | ||
dd8e46c7 RS |
642 | (gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line") |
643 | (gud-def gud-step "step %p" "\C-s" "Step one line with display.") | |
644 | (gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.") | |
645 | (gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).") | |
646 | (gud-def gud-cont "cont" "\C-r" "Continue with display.") | |
ee0155df ER |
647 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") |
648 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
dd8e46c7 | 649 | (gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.") |
ee0155df | 650 | |
13eaa026 | 651 | (setq comint-prompt-regexp "^[^)\n]*dbx) *") |
f54877b2 | 652 | (setq paragraph-start comint-prompt-regexp) |
13b80a60 ER |
653 | (run-hooks 'dbx-mode-hook) |
654 | ) | |
575661b1 | 655 | \f |
6496f3d2 RS |
656 | ;; ====================================================================== |
657 | ;; xdb (HP PARISC debugger) functions | |
658 | ||
f6376199 JB |
659 | ;;; History of argument lists passed to xdb. |
660 | (defvar gud-xdb-history nil) | |
661 | ||
fce222c7 RS |
662 | (defvar gud-xdb-directories nil |
663 | "*A list of directories that xdb should search for source code. | |
664 | If nil, only source files in the program directory | |
665 | will be known to xdb. | |
666 | ||
667 | The file names should be absolute, or relative to the directory | |
668 | containing the executable being debugged.") | |
669 | ||
a223b10d RM |
670 | (defun gud-xdb-massage-args (file args) |
671 | (nconc (let ((directories gud-xdb-directories) | |
672 | (result nil)) | |
673 | (while directories | |
674 | (setq result (cons (car directories) (cons "-d" result))) | |
675 | (setq directories (cdr directories))) | |
676 | (nreverse (cons file result))) | |
677 | args)) | |
6496f3d2 RS |
678 | |
679 | (defun gud-xdb-file-name (f) | |
680 | "Transform a relative pathname to a full pathname in xdb mode" | |
681 | (let ((result nil)) | |
682 | (if (file-exists-p f) | |
683 | (setq result (expand-file-name f)) | |
fce222c7 RS |
684 | (let ((directories gud-xdb-directories)) |
685 | (while directories | |
686 | (let ((path (concat (car directories) "/" f))) | |
6496f3d2 RS |
687 | (if (file-exists-p path) |
688 | (setq result (expand-file-name path) | |
fce222c7 RS |
689 | directories nil))) |
690 | (setq directories (cdr directories))))) | |
6496f3d2 RS |
691 | result)) |
692 | ||
693 | ;; xdb does not print the lines all at once, so we have to accumulate them | |
6496f3d2 RS |
694 | (defun gud-xdb-marker-filter (string) |
695 | (let (result) | |
696 | (if (or (string-match comint-prompt-regexp string) | |
697 | (string-match ".*\012" string)) | |
f266485d RS |
698 | (setq result (concat gud-marker-acc string) |
699 | gud-marker-acc "") | |
700 | (setq gud-marker-acc (concat gud-marker-acc string))) | |
6496f3d2 RS |
701 | (if result |
702 | (if (or (string-match "\\([^\n \t:]+\\): [^:]+: \\([0-9]+\\):" result) | |
703 | (string-match "[^: \t]+:[ \t]+\\([^:]+\\): [^:]+: \\([0-9]+\\):" | |
704 | result)) | |
705 | (let ((line (string-to-int | |
706 | (substring result (match-beginning 2) (match-end 2)))) | |
707 | (file (gud-xdb-file-name | |
708 | (substring result (match-beginning 1) (match-end 1))))) | |
709 | (if file | |
710 | (setq gud-last-frame (cons file line)))))) | |
711 | (or result ""))) | |
712 | ||
6496f3d2 RS |
713 | (defun gud-xdb-find-file (f) |
714 | (let ((realf (gud-xdb-file-name f))) | |
715 | (if realf (find-file-noselect realf)))) | |
716 | ||
717 | ;;;###autoload | |
a223b10d | 718 | (defun xdb (command-line) |
6496f3d2 RS |
719 | "Run xdb on program FILE in buffer *gud-FILE*. |
720 | The directory containing FILE becomes the initial working directory | |
721 | and source-file directory for your debugger. | |
722 | ||
fce222c7 | 723 | You can set the variable 'gud-xdb-directories' to a list of program source |
6496f3d2 | 724 | directories if your program contains sources from more than one directory." |
f6376199 | 725 | (interactive |
a223b10d | 726 | (list (read-from-minibuffer "Run xdb (like this): " |
f6376199 JB |
727 | (if (consp gud-xdb-history) |
728 | (car gud-xdb-history) | |
a223b10d | 729 | "xdb ") |
f6376199 JB |
730 | nil nil |
731 | '(gud-xdb-history . 1)))) | |
a223b10d RM |
732 | (gud-overload-functions '((gud-massage-args . gud-xdb-massage-args) |
733 | (gud-marker-filter . gud-xdb-marker-filter) | |
734 | (gud-find-file . gud-xdb-find-file))) | |
6496f3d2 | 735 | |
a223b10d | 736 | (gud-common-init command-line) |
6496f3d2 RS |
737 | |
738 | (gud-def gud-break "b %f:%l" "\C-b" "Set breakpoint at current line.") | |
739 | (gud-def gud-tbreak "b %f:%l\\t" "\C-t" | |
740 | "Set temporary breakpoint at current line.") | |
741 | (gud-def gud-remove "db" "\C-d" "Remove breakpoint at current line") | |
742 | (gud-def gud-step "s %p" "\C-s" "Step one line with display.") | |
743 | (gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).") | |
744 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
745 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") | |
746 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
747 | (gud-def gud-finish "bu\\t" "\C-f" "Finish executing current function.") | |
748 | (gud-def gud-print "p %e" "\C-p" "Evaluate C expression at point.") | |
749 | ||
750 | (setq comint-prompt-regexp "^>") | |
f54877b2 | 751 | (setq paragraph-start comint-prompt-regexp) |
6496f3d2 | 752 | (run-hooks 'xdb-mode-hook)) |
575661b1 RS |
753 | \f |
754 | ;; ====================================================================== | |
755 | ;; perldb functions | |
756 | ||
757 | ;;; History of argument lists passed to perldb. | |
758 | (defvar gud-perldb-history nil) | |
759 | ||
760 | (defun gud-perldb-massage-args (file args) | |
2c32e5c6 | 761 | (cons "-d" (cons file (cons "-emacs" args)))) |
575661b1 RS |
762 | |
763 | ;; There's no guarantee that Emacs will hand the filter the entire | |
764 | ;; marker at once; it could be broken up across several strings. We | |
765 | ;; might even receive a big chunk with several markers in it. If we | |
766 | ;; receive a chunk of text which looks like it might contain the | |
767 | ;; beginning of a marker, we save it here between calls to the | |
768 | ;; filter. | |
769 | (defvar gud-perldb-marker-acc "") | |
770 | ||
771 | (defun gud-perldb-marker-filter (string) | |
772 | (save-match-data | |
f266485d | 773 | (setq gud-marker-acc (concat gud-marker-acc string)) |
575661b1 RS |
774 | (let ((output "")) |
775 | ||
776 | ;; Process all the complete markers in this chunk. | |
76214250 | 777 | (while (string-match "\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n" |
f266485d | 778 | gud-marker-acc) |
575661b1 RS |
779 | (setq |
780 | ||
781 | ;; Extract the frame position from the marker. | |
782 | gud-last-frame | |
f266485d RS |
783 | (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) |
784 | (string-to-int (substring gud-marker-acc | |
575661b1 RS |
785 | (match-beginning 2) |
786 | (match-end 2)))) | |
787 | ||
788 | ;; Append any text before the marker to the output we're going | |
789 | ;; to return - we don't include the marker in this text. | |
790 | output (concat output | |
f266485d | 791 | (substring gud-marker-acc 0 (match-beginning 0))) |
575661b1 RS |
792 | |
793 | ;; Set the accumulator to the remaining text. | |
f266485d | 794 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) |
575661b1 RS |
795 | |
796 | ;; Does the remaining text look like it might end with the | |
797 | ;; beginning of another marker? If it does, then keep it in | |
f266485d | 798 | ;; gud-marker-acc until we receive the rest of it. Since we |
575661b1 RS |
799 | ;; know the full marker regexp above failed, it's pretty simple to |
800 | ;; test for marker starts. | |
76214250 | 801 | (if (string-match "\032.*\\'" gud-marker-acc) |
575661b1 RS |
802 | (progn |
803 | ;; Everything before the potential marker start can be output. | |
f266485d | 804 | (setq output (concat output (substring gud-marker-acc |
575661b1 RS |
805 | 0 (match-beginning 0)))) |
806 | ||
807 | ;; Everything after, we save, to combine with later input. | |
f266485d RS |
808 | (setq gud-marker-acc |
809 | (substring gud-marker-acc (match-beginning 0)))) | |
575661b1 | 810 | |
f266485d RS |
811 | (setq output (concat output gud-marker-acc) |
812 | gud-marker-acc "")) | |
575661b1 RS |
813 | |
814 | output))) | |
815 | ||
816 | (defun gud-perldb-find-file (f) | |
817 | (find-file-noselect f)) | |
818 | ||
819 | ;;;###autoload | |
820 | (defun perldb (command-line) | |
821 | "Run perldb on program FILE in buffer *gud-FILE*. | |
822 | The directory containing FILE becomes the initial working directory | |
823 | and source-file directory for your debugger." | |
824 | (interactive | |
825 | (list (read-from-minibuffer "Run perldb (like this): " | |
826 | (if (consp gud-perldb-history) | |
827 | (car gud-perldb-history) | |
2c32e5c6 | 828 | "perl ") |
575661b1 RS |
829 | nil nil |
830 | '(gud-perldb-history . 1)))) | |
831 | (gud-overload-functions '((gud-massage-args . gud-perldb-massage-args) | |
832 | (gud-marker-filter . gud-perldb-marker-filter) | |
833 | (gud-find-file . gud-perldb-find-file) | |
834 | )) | |
835 | ||
836 | (gud-common-init command-line) | |
837 | ||
2c32e5c6 RS |
838 | (gud-def gud-break "b %l" "\C-b" "Set breakpoint at current line.") |
839 | (gud-def gud-remove "d %l" "\C-d" "Remove breakpoint at current line") | |
840 | (gud-def gud-step "s" "\C-s" "Step one source line with display.") | |
841 | (gud-def gud-next "n" "\C-n" "Step one line (skip functions).") | |
842 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
843 | ; (gud-def gud-finish "finish" "\C-f" "Finish executing current function.") | |
844 | ; (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).") | |
845 | ; (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).") | |
846 | (gud-def gud-print "%e" "\C-p" "Evaluate perl expression at point.") | |
847 | ||
848 | (setq comint-prompt-regexp "^ DB<[0-9]+> ") | |
f54877b2 | 849 | (setq paragraph-start comint-prompt-regexp) |
2c32e5c6 | 850 | (run-hooks 'perldb-mode-hook) |
575661b1 | 851 | ) |
6496f3d2 | 852 | |
13b80a60 ER |
853 | ;; |
854 | ;; End of debugger-specific information | |
10a4c11f | 855 | ;; |
13b80a60 | 856 | |
575661b1 | 857 | \f |
53eb3a97 JB |
858 | ;;; When we send a command to the debugger via gud-call, it's annoying |
859 | ;;; to see the command and the new prompt inserted into the debugger's | |
860 | ;;; buffer; we have other ways of knowing the command has completed. | |
861 | ;;; | |
862 | ;;; If the buffer looks like this: | |
863 | ;;; -------------------- | |
864 | ;;; (gdb) set args foo bar | |
865 | ;;; (gdb) -!- | |
866 | ;;; -------------------- | |
867 | ;;; (the -!- marks the location of point), and we type `C-x SPC' in a | |
868 | ;;; source file to set a breakpoint, we want the buffer to end up like | |
869 | ;;; this: | |
870 | ;;; -------------------- | |
871 | ;;; (gdb) set args foo bar | |
872 | ;;; Breakpoint 1 at 0x92: file make-docfile.c, line 49. | |
873 | ;;; (gdb) -!- | |
874 | ;;; -------------------- | |
875 | ;;; Essentially, the old prompt is deleted, and the command's output | |
876 | ;;; and the new prompt take its place. | |
877 | ;;; | |
878 | ;;; Not echoing the command is easy enough; you send it directly using | |
879 | ;;; process-send-string, and it never enters the buffer. However, | |
880 | ;;; getting rid of the old prompt is trickier; you don't want to do it | |
881 | ;;; when you send the command, since that will result in an annoying | |
882 | ;;; flicker as the prompt is deleted, redisplay occurs while Emacs | |
883 | ;;; waits for a response from the debugger, and the new prompt is | |
884 | ;;; inserted. Instead, we'll wait until we actually get some output | |
885 | ;;; from the subprocess before we delete the prompt. If the command | |
886 | ;;; produced no output other than a new prompt, that prompt will most | |
887 | ;;; likely be in the first chunk of output received, so we will delete | |
888 | ;;; the prompt and then replace it with an identical one. If the | |
889 | ;;; command produces output, the prompt is moving anyway, so the | |
890 | ;;; flicker won't be annoying. | |
891 | ;;; | |
892 | ;;; So - when we want to delete the prompt upon receipt of the next | |
893 | ;;; chunk of debugger output, we position gud-delete-prompt-marker at | |
894 | ;;; the start of the prompt; the process filter will notice this, and | |
895 | ;;; delete all text between it and the process output marker. If | |
896 | ;;; gud-delete-prompt-marker points nowhere, we leave the current | |
897 | ;;; prompt alone. | |
898 | (defvar gud-delete-prompt-marker nil) | |
899 | ||
13b80a60 ER |
900 | \f |
901 | (defun gud-mode () | |
902 | "Major mode for interacting with an inferior debugger process. | |
24d725c2 | 903 | |
6496f3d2 RS |
904 | You start it up with one of the commands M-x gdb, M-x sdb, M-x dbx, |
905 | or M-x xdb. Each entry point finishes by executing a hook; `gdb-mode-hook', | |
906 | `sdb-mode-hook', `dbx-mode-hook' or `xdb-mode-hook' respectively. | |
24d725c2 | 907 | |
ee0155df ER |
908 | After startup, the following commands are available in both the GUD |
909 | interaction buffer and any source buffer GUD visits due to a breakpoint stop | |
910 | or step operation: | |
13b80a60 | 911 | |
ee0155df ER |
912 | \\[gud-break] sets a breakpoint at the current file and line. In the |
913 | GUD buffer, the current file and line are those of the last breakpoint or | |
914 | step. In a source buffer, they are the buffer's file and current line. | |
915 | ||
45025813 ER |
916 | \\[gud-remove] removes breakpoints on the current file and line. |
917 | ||
ee0155df | 918 | \\[gud-refresh] displays in the source window the last line referred to |
24d725c2 | 919 | in the gud buffer. |
13b80a60 | 920 | |
ee0155df ER |
921 | \\[gud-step], \\[gud-next], and \\[gud-stepi] do a step-one-line, |
922 | step-one-line (not entering function calls), and step-one-instruction | |
923 | and then update the source window with the current file and position. | |
924 | \\[gud-cont] continues execution. | |
13b80a60 | 925 | |
ee0155df ER |
926 | \\[gud-print] tries to find the largest C lvalue or function-call expression |
927 | around point, and sends it to the debugger for value display. | |
24d725c2 | 928 | |
6496f3d2 RS |
929 | The above commands are common to all supported debuggers except xdb which |
930 | does not support stepping instructions. | |
24d725c2 | 931 | |
6496f3d2 | 932 | Under gdb, sdb and xdb, \\[gud-tbreak] behaves exactly like \\[gud-break], |
ee0155df ER |
933 | except that the breakpoint is temporary; that is, it is removed when |
934 | execution stops on it. | |
24d725c2 | 935 | |
6496f3d2 | 936 | Under gdb, dbx, and xdb, \\[gud-up] pops up through an enclosing stack |
ee0155df | 937 | frame. \\[gud-down] drops back down through one. |
24d725c2 | 938 | |
6496f3d2 | 939 | If you are using gdb or xdb, \\[gud-finish] runs execution to the return from |
ee0155df | 940 | the current function and stops. |
24d725c2 | 941 | |
dcec1a3b RS |
942 | All the keystrokes above are accessible in the GUD buffer |
943 | with the prefix C-c, and in all buffers through the prefix C-x C-a. | |
45025813 | 944 | |
ee0155df ER |
945 | All pre-defined functions for which the concept make sense repeat |
946 | themselves the appropriate number of times if you give a prefix | |
947 | argument. | |
13b80a60 | 948 | |
dcec1a3b | 949 | You may use the `gud-def' macro in the initialization hook to define other |
ee0155df | 950 | commands. |
13b80a60 | 951 | |
24d725c2 ER |
952 | Other commands for interacting with the debugger process are inherited from |
953 | comint mode, which see." | |
13b80a60 ER |
954 | (interactive) |
955 | (comint-mode) | |
13b80a60 ER |
956 | (setq major-mode 'gud-mode) |
957 | (setq mode-name "Debugger") | |
0b358e64 | 958 | (setq mode-line-process '(":%s")) |
ee0155df | 959 | (use-local-map (copy-keymap comint-mode-map)) |
2b64612d | 960 | (define-key (current-local-map) "\C-c\C-l" 'gud-refresh) |
13b80a60 ER |
961 | (make-local-variable 'gud-last-frame) |
962 | (setq gud-last-frame nil) | |
963 | (make-local-variable 'comint-prompt-regexp) | |
f54877b2 | 964 | (make-local-variable 'paragraph-start) |
53eb3a97 JB |
965 | (make-local-variable 'gud-delete-prompt-marker) |
966 | (setq gud-delete-prompt-marker (make-marker)) | |
13b80a60 ER |
967 | (run-hooks 'gud-mode-hook) |
968 | ) | |
969 | ||
a223b10d RM |
970 | ;; Chop STRING into words separated by SPC or TAB and return a list of them. |
971 | (defun gud-chop-words (string) | |
972 | (let ((i 0) (beg 0) | |
973 | (len (length string)) | |
974 | (words nil)) | |
975 | (while (< i len) | |
976 | (if (memq (aref string i) '(?\t ? )) | |
977 | (progn | |
978 | (setq words (cons (substring string beg i) words) | |
979 | beg (1+ i)) | |
980 | (while (and (< beg len) (memq (aref string beg) '(?\t ? ))) | |
981 | (setq beg (1+ beg))) | |
982 | (setq i (1+ beg))) | |
983 | (setq i (1+ i)))) | |
984 | (if (< beg len) | |
985 | (setq words (cons (substring string beg) words))) | |
986 | (nreverse words))) | |
987 | ||
988 | ;; Perform initializations common to all debuggers. | |
989 | (defun gud-common-init (command-line) | |
990 | (let* ((words (gud-chop-words command-line)) | |
991 | (program (car words)) | |
992 | (file-word (let ((w (cdr words))) | |
993 | (while (and w (= ?- (aref (car w) 0))) | |
994 | (setq w (cdr w))) | |
995 | (car w))) | |
996 | (args (delq file-word (cdr words))) | |
52b85866 RS |
997 | (file (and file-word |
998 | (expand-file-name (substitute-in-file-name file-word)))) | |
999 | (filepart (and file-word (file-name-nondirectory file)))) | |
ee0155df | 1000 | (switch-to-buffer (concat "*gud-" filepart "*")) |
52b85866 | 1001 | (and file-word (setq default-directory (file-name-directory file))) |
ee0155df ER |
1002 | (or (bolp) (newline)) |
1003 | (insert "Current directory is " default-directory "\n") | |
a223b10d | 1004 | (apply 'make-comint (concat "gud-" filepart) program nil |
52b85866 | 1005 | (if file-word (gud-massage-args file args)))) |
13b80a60 ER |
1006 | (gud-mode) |
1007 | (set-process-filter (get-buffer-process (current-buffer)) 'gud-filter) | |
1008 | (set-process-sentinel (get-buffer-process (current-buffer)) 'gud-sentinel) | |
13b80a60 ER |
1009 | (gud-set-buffer) |
1010 | ) | |
1011 | ||
1012 | (defun gud-set-buffer () | |
1013 | (cond ((eq major-mode 'gud-mode) | |
ee0155df ER |
1014 | (setq gud-comint-buffer (current-buffer))))) |
1015 | ||
1016 | ;; These functions are responsible for inserting output from your debugger | |
1017 | ;; into the buffer. The hard work is done by the method that is | |
1018 | ;; the value of gud-marker-filter. | |
13b80a60 | 1019 | |
ee0155df | 1020 | (defun gud-filter (proc string) |
13b80a60 | 1021 | ;; Here's where the actual buffer insertion is done |
5afe3a2b RS |
1022 | (let ((inhibit-quit t) |
1023 | output) | |
ee0155df ER |
1024 | (save-excursion |
1025 | (set-buffer (process-buffer proc)) | |
78328f33 KH |
1026 | ;; If we have been so requested, delete the debugger prompt. |
1027 | (if (marker-buffer gud-delete-prompt-marker) | |
1028 | (progn | |
1029 | (delete-region (process-mark proc) gud-delete-prompt-marker) | |
1030 | (set-marker gud-delete-prompt-marker nil))) | |
5afe3a2b RS |
1031 | ;; Save the process output, checking for source file markers. |
1032 | (setq output (gud-marker-filter string)) | |
78328f33 KH |
1033 | ;; Check for a filename-and-line number. |
1034 | ;; Don't display the specified file | |
1035 | ;; unless (1) point is at or after the position where output appears | |
1036 | ;; and (2) this buffer is on the screen. | |
1037 | (if (and gud-last-frame | |
1038 | (>= (point) (process-mark proc)) | |
1039 | (get-buffer-window (current-buffer))) | |
5afe3a2b RS |
1040 | (gud-display-frame)) |
1041 | ;; Let the comint filter do the actual insertion. | |
1042 | ;; That lets us inherit various comint features. | |
1043 | (comint-output-filter proc output)))) | |
13b80a60 ER |
1044 | |
1045 | (defun gud-sentinel (proc msg) | |
1046 | (cond ((null (buffer-name (process-buffer proc))) | |
1047 | ;; buffer killed | |
1048 | ;; Stop displaying an arrow in a source file. | |
1049 | (setq overlay-arrow-position nil) | |
1050 | (set-process-buffer proc nil)) | |
1051 | ((memq (process-status proc) '(signal exit)) | |
1052 | ;; Stop displaying an arrow in a source file. | |
1053 | (setq overlay-arrow-position nil) | |
1054 | ;; Fix the mode line. | |
1055 | (setq mode-line-process | |
0b358e64 | 1056 | (concat ":" |
13b80a60 ER |
1057 | (symbol-name (process-status proc)))) |
1058 | (let* ((obuf (current-buffer))) | |
1059 | ;; save-excursion isn't the right thing if | |
1060 | ;; process-buffer is current-buffer | |
1061 | (unwind-protect | |
1062 | (progn | |
1063 | ;; Write something in *compilation* and hack its mode line, | |
1064 | (set-buffer (process-buffer proc)) | |
1065 | ;; Force mode line redisplay soon | |
1066 | (set-buffer-modified-p (buffer-modified-p)) | |
1067 | (if (eobp) | |
1068 | (insert ?\n mode-name " " msg) | |
1069 | (save-excursion | |
1070 | (goto-char (point-max)) | |
1071 | (insert ?\n mode-name " " msg))) | |
1072 | ;; If buffer and mode line will show that the process | |
1073 | ;; is dead, we can delete it now. Otherwise it | |
1074 | ;; will stay around until M-x list-processes. | |
1075 | (delete-process proc)) | |
1076 | ;; Restore old buffer, but don't restore old point | |
1077 | ;; if obuf is the gud buffer. | |
1078 | (set-buffer obuf)))))) | |
1079 | ||
13b80a60 ER |
1080 | (defun gud-display-frame () |
1081 | "Find and obey the last filename-and-line marker from the debugger. | |
1082 | Obeying it means displaying in another window the specified file and line." | |
1083 | (interactive) | |
1084 | (if gud-last-frame | |
ee0155df | 1085 | (progn |
13b80a60 ER |
1086 | (gud-set-buffer) |
1087 | (gud-display-line (car gud-last-frame) (cdr gud-last-frame)) | |
32ab4c10 JB |
1088 | (setq gud-last-last-frame gud-last-frame |
1089 | gud-last-frame nil)))) | |
13b80a60 ER |
1090 | |
1091 | ;; Make sure the file named TRUE-FILE is in a buffer that appears on the screen | |
1092 | ;; and that its line LINE is visible. | |
1093 | ;; Put the overlay-arrow on the line LINE in that buffer. | |
ee0155df ER |
1094 | ;; Most of the trickiness in here comes from wanting to preserve the current |
1095 | ;; region-restriction if that's possible. We use an explicit display-buffer | |
1096 | ;; to get around the fact that this is called inside a save-excursion. | |
13b80a60 ER |
1097 | |
1098 | (defun gud-display-line (true-file line) | |
8f6c93e2 RS |
1099 | (let* ((last-nonmenu-event t) ; Prevent use of dialog box for questions. |
1100 | (buffer (gud-find-file true-file)) | |
ee0155df | 1101 | (window (display-buffer buffer)) |
13b80a60 | 1102 | (pos)) |
dd8e46c7 RS |
1103 | ;;; (if (equal buffer (current-buffer)) |
1104 | ;;; nil | |
1105 | ;;; (setq buffer-read-only nil)) | |
13b80a60 | 1106 | (save-excursion |
dd8e46c7 | 1107 | ;;; (setq buffer-read-only t) |
13b80a60 ER |
1108 | (set-buffer buffer) |
1109 | (save-restriction | |
1110 | (widen) | |
1111 | (goto-line line) | |
1112 | (setq pos (point)) | |
1113 | (setq overlay-arrow-string "=>") | |
1114 | (or overlay-arrow-position | |
1115 | (setq overlay-arrow-position (make-marker))) | |
1116 | (set-marker overlay-arrow-position (point) (current-buffer))) | |
1117 | (cond ((or (< pos (point-min)) (> pos (point-max))) | |
1118 | (widen) | |
1119 | (goto-char pos)))) | |
1120 | (set-window-point window overlay-arrow-position))) | |
53eb3a97 | 1121 | |
ee0155df ER |
1122 | ;;; The gud-call function must do the right thing whether its invoking |
1123 | ;;; keystroke is from the GUD buffer itself (via major-mode binding) | |
5b08a462 ER |
1124 | ;;; or a C buffer. In the former case, we want to supply data from |
1125 | ;;; gud-last-frame. Here's how we do it: | |
13b80a60 | 1126 | |
ee0155df | 1127 | (defun gud-format-command (str arg) |
13eaa026 RS |
1128 | (let ((insource (not (eq (current-buffer) gud-comint-buffer))) |
1129 | (frame (or gud-last-frame gud-last-last-frame)) | |
1130 | result) | |
1131 | (while (and str (string-match "\\([^%]*\\)%\\([adeflp]\\)" str)) | |
1132 | (let ((key (string-to-char (substring str (match-beginning 2)))) | |
1133 | subst) | |
1134 | (cond | |
1135 | ((eq key ?f) | |
1136 | (setq subst (file-name-nondirectory (if insource | |
1137 | (buffer-file-name) | |
1138 | (car frame))))) | |
1139 | ((eq key ?d) | |
1140 | (setq subst (file-name-directory (if insource | |
7f359a21 | 1141 | (buffer-file-name) |
13eaa026 RS |
1142 | (car frame))))) |
1143 | ((eq key ?l) | |
1144 | (setq subst (if insource | |
1145 | (save-excursion | |
1146 | (beginning-of-line) | |
1147 | (save-restriction (widen) | |
1148 | (1+ (count-lines 1 (point))))) | |
1149 | (cdr frame)))) | |
1150 | ((eq key ?e) | |
1151 | (setq subst (find-c-expr))) | |
1152 | ((eq key ?a) | |
1153 | (setq subst (gud-read-address))) | |
1154 | ((eq key ?p) | |
1155 | (setq subst (if arg (int-to-string arg) "")))) | |
1156 | (setq result (concat result | |
1157 | (substring str (match-beginning 1) (match-end 1)) | |
1158 | subst))) | |
1159 | (setq str (substring str (match-end 2)))) | |
1160 | ;; There might be text left in STR when the loop ends. | |
1161 | (concat result str))) | |
13b80a60 | 1162 | |
6bde8427 | 1163 | (defun gud-read-address () |
13b80a60 ER |
1164 | "Return a string containing the core-address found in the buffer at point." |
1165 | (save-excursion | |
6bde8427 | 1166 | (let ((pt (point)) found begin) |
ee0155df | 1167 | (setq found (if (search-backward "0x" (- pt 7) t) (point))) |
6bde8427 JB |
1168 | (cond |
1169 | (found (forward-char 2) | |
1170 | (buffer-substring found | |
1171 | (progn (re-search-forward "[^0-9a-f]") | |
1172 | (forward-char -1) | |
1173 | (point)))) | |
1174 | (t (setq begin (progn (re-search-backward "[^0-9]") | |
1175 | (forward-char 1) | |
1176 | (point))) | |
1177 | (forward-char 1) | |
1178 | (re-search-forward "[^0-9]") | |
1179 | (forward-char -1) | |
1180 | (buffer-substring begin (point))))))) | |
13b80a60 | 1181 | |
ee0155df ER |
1182 | (defun gud-call (fmt &optional arg) |
1183 | (let ((msg (gud-format-command fmt arg))) | |
1184 | (message "Command: %s" msg) | |
1185 | (sit-for 0) | |
1186 | (gud-basic-call msg))) | |
13b80a60 | 1187 | |
ee0155df ER |
1188 | (defun gud-basic-call (command) |
1189 | "Invoke the debugger COMMAND displaying source in other window." | |
1190 | (interactive) | |
1191 | (gud-set-buffer) | |
1192 | (let ((command (concat command "\n")) | |
1193 | (proc (get-buffer-process gud-comint-buffer))) | |
1194 | ||
1195 | ;; Arrange for the current prompt to get deleted. | |
1196 | (save-excursion | |
1197 | (set-buffer gud-comint-buffer) | |
1198 | (goto-char (process-mark proc)) | |
1199 | (beginning-of-line) | |
1200 | (if (looking-at comint-prompt-regexp) | |
1201 | (set-marker gud-delete-prompt-marker (point)))) | |
1202 | (process-send-string proc command))) | |
1203 | ||
1204 | (defun gud-refresh (&optional arg) | |
1205 | "Fix up a possibly garbled display, and redraw the arrow." | |
13b80a60 | 1206 | (interactive "P") |
ee0155df | 1207 | (recenter arg) |
32ab4c10 | 1208 | (or gud-last-frame (setq gud-last-frame gud-last-last-frame)) |
ee0155df | 1209 | (gud-display-frame)) |
dcec1a3b | 1210 | \f |
ee0155df ER |
1211 | ;;; Code for parsing expressions out of C code. The single entry point is |
1212 | ;;; find-c-expr, which tries to return an lvalue expression from around point. | |
1213 | ;;; | |
1214 | ;;; The rest of this file is a hacked version of gdbsrc.el by | |
1215 | ;;; Debby Ayers <ayers@asc.slb.com>, | |
1216 | ;;; Rich Schaefer <schaefer@asc.slb.com> Schlumberger, Austin, Tx. | |
ee0155df ER |
1217 | |
1218 | (defun find-c-expr () | |
1219 | "Returns the C expr that surrounds point." | |
1220 | (interactive) | |
1221 | (save-excursion | |
1222 | (let ((p) (expr) (test-expr)) | |
1223 | (setq p (point)) | |
1224 | (setq expr (expr-cur)) | |
1225 | (setq test-expr (expr-prev)) | |
1226 | (while (expr-compound test-expr expr) | |
1227 | (setq expr (cons (car test-expr) (cdr expr))) | |
1228 | (goto-char (car expr)) | |
dcec1a3b | 1229 | (setq test-expr (expr-prev))) |
ee0155df ER |
1230 | (goto-char p) |
1231 | (setq test-expr (expr-next)) | |
1232 | (while (expr-compound expr test-expr) | |
1233 | (setq expr (cons (car expr) (cdr test-expr))) | |
1234 | (setq test-expr (expr-next)) | |
1235 | ) | |
dcec1a3b | 1236 | (buffer-substring (car expr) (cdr expr))))) |
ee0155df ER |
1237 | |
1238 | (defun expr-cur () | |
1239 | "Returns the expr that point is in; point is set to beginning of expr. | |
1240 | The expr is represented as a cons cell, where the car specifies the point in | |
1241 | the current buffer that marks the beginning of the expr and the cdr specifies | |
dcec1a3b | 1242 | the character after the end of the expr." |
ee0155df | 1243 | (let ((p (point)) (begin) (end)) |
dcec1a3b | 1244 | (expr-backward-sexp) |
ee0155df | 1245 | (setq begin (point)) |
dcec1a3b | 1246 | (expr-forward-sexp) |
ee0155df ER |
1247 | (setq end (point)) |
1248 | (if (>= p end) | |
1249 | (progn | |
1250 | (setq begin p) | |
1251 | (goto-char p) | |
dcec1a3b | 1252 | (expr-forward-sexp) |
ee0155df ER |
1253 | (setq end (point)) |
1254 | ) | |
1255 | ) | |
1256 | (goto-char begin) | |
dcec1a3b | 1257 | (cons begin end))) |
ee0155df | 1258 | |
dcec1a3b RS |
1259 | (defun expr-backward-sexp () |
1260 | "Version of `backward-sexp' that catches errors." | |
ee0155df ER |
1261 | (condition-case nil |
1262 | (backward-sexp) | |
1263 | (error t))) | |
1264 | ||
dcec1a3b RS |
1265 | (defun expr-forward-sexp () |
1266 | "Version of `forward-sexp' that catches errors." | |
ee0155df ER |
1267 | (condition-case nil |
1268 | (forward-sexp) | |
1269 | (error t))) | |
1270 | ||
1271 | (defun expr-prev () | |
1272 | "Returns the previous expr, point is set to beginning of that expr. | |
1273 | The expr is represented as a cons cell, where the car specifies the point in | |
1274 | the current buffer that marks the beginning of the expr and the cdr specifies | |
1275 | the character after the end of the expr" | |
1276 | (let ((begin) (end)) | |
dcec1a3b | 1277 | (expr-backward-sexp) |
ee0155df | 1278 | (setq begin (point)) |
dcec1a3b | 1279 | (expr-forward-sexp) |
ee0155df ER |
1280 | (setq end (point)) |
1281 | (goto-char begin) | |
1282 | (cons begin end))) | |
1283 | ||
1284 | (defun expr-next () | |
1285 | "Returns the following expr, point is set to beginning of that expr. | |
1286 | The expr is represented as a cons cell, where the car specifies the point in | |
1287 | the current buffer that marks the beginning of the expr and the cdr specifies | |
dcec1a3b | 1288 | the character after the end of the expr." |
ee0155df | 1289 | (let ((begin) (end)) |
dcec1a3b RS |
1290 | (expr-forward-sexp) |
1291 | (expr-forward-sexp) | |
ee0155df | 1292 | (setq end (point)) |
dcec1a3b | 1293 | (expr-backward-sexp) |
ee0155df | 1294 | (setq begin (point)) |
dcec1a3b | 1295 | (cons begin end))) |
ee0155df ER |
1296 | |
1297 | (defun expr-compound-sep (span-start span-end) | |
1298 | "Returns '.' for '->' & '.', returns ' ' for white space, | |
eb8c3be9 | 1299 | returns '?' for other punctuation." |
ee0155df ER |
1300 | (let ((result ? ) |
1301 | (syntax)) | |
1302 | (while (< span-start span-end) | |
1303 | (setq syntax (char-syntax (char-after span-start))) | |
1304 | (cond | |
1305 | ((= syntax ? ) t) | |
1306 | ((= syntax ?.) (setq syntax (char-after span-start)) | |
1307 | (cond | |
1308 | ((= syntax ?.) (setq result ?.)) | |
1309 | ((and (= syntax ?-) (= (char-after (+ span-start 1)) ?>)) | |
1310 | (setq result ?.) | |
1311 | (setq span-start (+ span-start 1))) | |
1312 | (t (setq span-start span-end) | |
1313 | (setq result ??))))) | |
1314 | (setq span-start (+ span-start 1))) | |
dcec1a3b | 1315 | result)) |
ee0155df ER |
1316 | |
1317 | (defun expr-compound (first second) | |
dcec1a3b RS |
1318 | "Non-nil if concatenating FIRST and SECOND makes a single C token. |
1319 | The two exprs are represented as a cons cells, where the car | |
ee0155df | 1320 | specifies the point in the current buffer that marks the beginning of the |
dcec1a3b | 1321 | expr and the cdr specifies the character after the end of the expr. |
ee0155df ER |
1322 | Link exprs of the form: |
1323 | Expr -> Expr | |
1324 | Expr . Expr | |
1325 | Expr (Expr) | |
1326 | Expr [Expr] | |
1327 | (Expr) Expr | |
1328 | [Expr] Expr" | |
1329 | (let ((span-start (cdr first)) | |
1330 | (span-end (car second)) | |
1331 | (syntax)) | |
1332 | (setq syntax (expr-compound-sep span-start span-end)) | |
1333 | (cond | |
1334 | ((= (car first) (car second)) nil) | |
1335 | ((= (cdr first) (cdr second)) nil) | |
1336 | ((= syntax ?.) t) | |
1337 | ((= syntax ? ) | |
1338 | (setq span-start (char-after (- span-start 1))) | |
1339 | (setq span-end (char-after span-end)) | |
1340 | (cond | |
1341 | ((= span-start ?) ) t ) | |
1342 | ((= span-start ?] ) t ) | |
1343 | ((= span-end ?( ) t ) | |
1344 | ((= span-end ?[ ) t ) | |
1345 | (t nil)) | |
1346 | ) | |
dcec1a3b | 1347 | (t nil)))) |
5b08a462 | 1348 | |
96f4e22e RM |
1349 | (provide 'gud) |
1350 | ||
f961a17c | 1351 | ;;; gud.el ends here |