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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 ER |
49 | (global-set-key (concat gud-key-prefix "\C-l") 'gud-refresh) |
50 | (global-set-key "\C-x " '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) |
13b80a60 ER |
64 | (error "GUD not properly entered.")) |
65 | ||
ee0155df | 66 | (defun gud-marker-filter (str) |
13b80a60 ER |
67 | (error "GUD not properly entered.")) |
68 | ||
ee0155df | 69 | (defun gud-find-file (f) |
13b80a60 | 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 ER |
406 | (if (and gud-sdb-needs-tags |
407 | (not (and (boundp 'tags-file-name) (file-exists-p tags-file-name)))) | |
13b80a60 | 408 | (error "The sdb support requires a valid tags table to work.")) |
a223b10d RM |
409 | (gud-overload-functions '((gud-massage-args . gud-sdb-massage-args) |
410 | (gud-marker-filter . gud-sdb-marker-filter) | |
411 | (gud-find-file . gud-sdb-find-file) | |
ee0155df | 412 | )) |
13b80a60 | 413 | |
a223b10d | 414 | (gud-common-init command-line) |
5b08a462 | 415 | |
dd8e46c7 RS |
416 | (gud-def gud-break "%l b" "\C-b" "Set breakpoint at current line.") |
417 | (gud-def gud-tbreak "%l c" "\C-t" "Set temporary breakpoint at current line.") | |
418 | (gud-def gud-remove "%l d" "\C-d" "Remove breakpoint at current line") | |
419 | (gud-def gud-step "s %p" "\C-s" "Step one source line with display.") | |
420 | (gud-def gud-stepi "i %p" "\C-i" "Step one instruction with display.") | |
421 | (gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).") | |
422 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
423 | (gud-def gud-print "%e/" "\C-p" "Evaluate C expression at point.") | |
13b80a60 | 424 | |
6bde8427 | 425 | (setq comint-prompt-regexp "\\(^\\|\n\\)\\*") |
f54877b2 | 426 | (setq paragraph-start comint-prompt-regexp) |
13b80a60 ER |
427 | (run-hooks 'sdb-mode-hook) |
428 | ) | |
575661b1 | 429 | \f |
13b80a60 ER |
430 | ;; ====================================================================== |
431 | ;; dbx functions | |
432 | ||
f6376199 JB |
433 | ;;; History of argument lists passed to dbx. |
434 | (defvar gud-dbx-history nil) | |
435 | ||
a223b10d RM |
436 | (defun gud-dbx-massage-args (file args) |
437 | (cons file args)) | |
13b80a60 | 438 | |
ee0155df | 439 | (defun gud-dbx-marker-filter (string) |
107a16d1 RS |
440 | (if (or (string-match |
441 | "stopped in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\"" | |
442 | string) | |
443 | (string-match | |
444 | "signal .* in .* at line \\([0-9]*\\) in file \"\\([^\"]*\\)\"" | |
445 | string)) | |
13b80a60 ER |
446 | (setq gud-last-frame |
447 | (cons | |
448 | (substring string (match-beginning 2) (match-end 2)) | |
449 | (string-to-int | |
450 | (substring string (match-beginning 1) (match-end 1)))))) | |
451 | string) | |
452 | ||
f266485d RS |
453 | ;; Functions for Mips-style dbx. Given the option `-emacs', documented in |
454 | ;; OSF1, not necessarily elsewhere, it produces markers similar to gdb's. | |
455 | (defvar gud-mips-p | |
456 | (or (string-match "^mips-[^-]*-ultrix" system-configuration) | |
457 | ;; We haven't tested gud on this system: | |
458 | (string-match "^mips-[^-]*-riscos" system-configuration) | |
459 | ;; It's documented on OSF/1.3 | |
460 | (string-match "^mips-[^-]*-osf1" system-configuration)) | |
461 | "Non-nil to assume the MIPS/OSF dbx conventions (argument `-emacs').") | |
13eaa026 RS |
462 | |
463 | (defun gud-mipsdbx-massage-args (file args) | |
464 | (cons "-emacs" (cons file args))) | |
465 | ||
f266485d RS |
466 | ;; This is just like the gdb one except for the regexps since we need to cope |
467 | ;; with an optional breakpoint number in [] before the ^Z^Z | |
13eaa026 RS |
468 | (defun gud-mipsdbx-marker-filter (string) |
469 | (save-match-data | |
f266485d | 470 | (setq gud-marker-acc (concat gud-marker-acc string)) |
13eaa026 RS |
471 | (let ((output "")) |
472 | ||
473 | ;; Process all the complete markers in this chunk. | |
474 | (while (string-match | |
f266485d RS |
475 | ;; This is like th gdb marker but with an optional |
476 | ;; leading break point number like `[1] ' | |
76214250 | 477 | "[][ 0-9]*\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n" |
f266485d | 478 | gud-marker-acc) |
13eaa026 RS |
479 | (setq |
480 | ||
481 | ;; Extract the frame position from the marker. | |
f266485d RS |
482 | gud-last-frame |
483 | (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) | |
484 | (string-to-int (substring gud-marker-acc | |
485 | (match-beginning 2) | |
486 | (match-end 2)))) | |
13eaa026 RS |
487 | |
488 | ;; Append any text before the marker to the output we're going | |
489 | ;; to return - we don't include the marker in this text. | |
f266485d RS |
490 | output (concat output |
491 | (substring gud-marker-acc 0 (match-beginning 0))) | |
13eaa026 RS |
492 | |
493 | ;; Set the accumulator to the remaining text. | |
f266485d | 494 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) |
13eaa026 RS |
495 | |
496 | ;; Does the remaining text look like it might end with the | |
497 | ;; beginning of another marker? If it does, then keep it in | |
f266485d RS |
498 | ;; gud-marker-acc until we receive the rest of it. Since we |
499 | ;; know the full marker regexp above failed, it's pretty simple to | |
500 | ;; test for marker starts. | |
76214250 | 501 | (if (string-match "[][ 0-9]*\032.*\\'" gud-marker-acc) |
f266485d RS |
502 | (progn |
503 | ;; Everything before the potential marker start can be output. | |
504 | (setq output (concat output (substring gud-marker-acc | |
505 | 0 (match-beginning 0)))) | |
506 | ||
507 | ;; Everything after, we save, to combine with later input. | |
508 | (setq gud-marker-acc | |
509 | (substring gud-marker-acc (match-beginning 0)))) | |
510 | ||
511 | (setq output (concat output gud-marker-acc) | |
512 | gud-marker-acc "")) | |
13eaa026 RS |
513 | |
514 | output))) | |
515 | ||
f266485d RS |
516 | ;; The dbx in IRIX is a pain. It doesn't print the file name when |
517 | ;; stopping at a breakpoint (but you do get it from the `up' and | |
518 | ;; `down' commands...). The only way to extract the information seems | |
519 | ;; to be with a `file' command, although the current line number is | |
520 | ;; available in $curline. Thus we have to look for output which | |
521 | ;; appears to indicate a breakpoint. Then we prod the dbx sub-process | |
522 | ;; to output the information we want with a combination of the | |
523 | ;; `printf' and `file' commands as a pseudo marker which we can | |
524 | ;; recognise next time through the marker-filter. This would be like | |
525 | ;; the gdb marker but you can't get the file name without a newline... | |
526 | ;; Note that gud-remove won't work since Irix dbx expects a breakpoint | |
527 | ;; number rather than a line number etc. Maybe this could be made to | |
528 | ;; work by listing all the breakpoints and picking the one(s) with the | |
529 | ;; correct line number, but life's too short. | |
530 | ;; d.love@dl.ac.uk (Dave Love) can be blamed for this | |
531 | ||
532 | (defvar gud-irix-p (string-match "^mips-[^-]*-irix" system-configuration) | |
533 | "Non-nil to assume the interface appropriate for IRIX dbx. | |
534 | This works in IRIX 4 and probably IRIX 5.") | |
535 | ;; (It's been tested in IRIX 4 and the output from dbx on IRIX 5 looks | |
536 | ;; the same.) | |
537 | ||
538 | ;; this filter is influenced by the xdb one rather than the gdb one | |
539 | (defun gud-irixdbx-marker-filter (string) | |
540 | (save-match-data | |
541 | (let (result (case-fold-search nil)) | |
542 | (if (or (string-match comint-prompt-regexp string) | |
543 | (string-match ".*\012" string)) | |
544 | (setq result (concat gud-marker-acc string) | |
545 | gud-marker-acc "") | |
546 | (setq gud-marker-acc (concat gud-marker-acc string))) | |
547 | (if result | |
548 | (cond | |
549 | ;; look for breakpoint or signal indication e.g.: | |
550 | ;; [2] Process 1267 (pplot) stopped at [params:338 ,0x400ec0] | |
551 | ;; Process 1281 (pplot) stopped at [params:339 ,0x400ec8] | |
552 | ;; Process 1270 (pplot) Floating point exception [._read._read:16 ,0x452188] | |
553 | ((string-match | |
554 | "^\\(\\[[0-9]+] \\)?Process +[0-9]+ ([^)]*) [^[]+\\[[^]\n]*]\n" | |
555 | result) | |
556 | ;; prod dbx into printing out the line number and file | |
557 | ;; name in a form we can grok as below | |
558 | (process-send-string (get-buffer-process gud-comint-buffer) | |
559 | "printf \"\032\032%1d:\",$curline;file\n")) | |
560 | ;; look for result of, say, "up" e.g.: | |
561 | ;; .pplot.pplot(0x800) ["src/pplot.f":261, 0x400c7c] | |
562 | ;; (this will also catch one of the lines printed by "where") | |
563 | ((string-match | |
564 | "^[^ ][^[]*\\[\"\\([^\"]+\\)\":\\([0-9]+\\), [^]]+]\n" | |
565 | result) | |
566 | (let ((file (substring result (match-beginning 1) | |
567 | (match-end 1)))) | |
568 | (if (file-exists-p file) | |
569 | (setq gud-last-frame | |
570 | (cons | |
571 | (substring | |
572 | result (match-beginning 1) (match-end 1)) | |
573 | (string-to-int | |
574 | (substring | |
575 | result (match-beginning 2) (match-end 2))))))) | |
576 | result) | |
577 | ((string-match ; kluged-up marker as above | |
578 | "\032\032\\([0-9]*\\):\\(.*\\)\n" result) | |
579 | (let ((file (substring result (match-beginning 2) (match-end 2)))) | |
580 | (if (file-exists-p file) | |
581 | (setq gud-last-frame | |
582 | (cons | |
583 | file | |
584 | (string-to-int | |
585 | (substring | |
586 | result (match-beginning 1) (match-end 1))))))) | |
587 | (setq result (substring result 0 (match-beginning 0)))))) | |
588 | (or result "")))) | |
589 | ||
ee0155df | 590 | (defun gud-dbx-find-file (f) |
13b80a60 ER |
591 | (find-file-noselect f)) |
592 | ||
10a4c11f | 593 | ;;;###autoload |
a223b10d | 594 | (defun dbx (command-line) |
13b80a60 ER |
595 | "Run dbx on program FILE in buffer *gud-FILE*. |
596 | The directory containing FILE becomes the initial working directory | |
597 | and source-file directory for your debugger." | |
f6376199 | 598 | (interactive |
a223b10d | 599 | (list (read-from-minibuffer "Run dbx (like this): " |
f6376199 JB |
600 | (if (consp gud-dbx-history) |
601 | (car gud-dbx-history) | |
a223b10d | 602 | "dbx ") |
f6376199 JB |
603 | nil nil |
604 | '(gud-dbx-history . 1)))) | |
13eaa026 RS |
605 | |
606 | (gud-overload-functions | |
607 | (cond | |
f266485d | 608 | (gud-mips-p |
13eaa026 RS |
609 | '((gud-massage-args . gud-mipsdbx-massage-args) |
610 | (gud-marker-filter . gud-mipsdbx-marker-filter) | |
611 | (gud-find-file . gud-dbx-find-file))) | |
f266485d RS |
612 | (gud-irix-p |
613 | '((gud-massage-args . gud-dbx-massage-args) | |
614 | (gud-marker-filter . gud-irixdbx-marker-filter) | |
615 | (gud-find-file . gud-dbx-find-file))) | |
13eaa026 RS |
616 | (t |
617 | '((gud-massage-args . gud-dbx-massage-args) | |
618 | (gud-marker-filter . gud-dbx-marker-filter) | |
619 | (gud-find-file . gud-dbx-find-file))))) | |
ee0155df | 620 | |
a223b10d | 621 | (gud-common-init command-line) |
5b08a462 | 622 | |
13eaa026 | 623 | (cond |
f266485d | 624 | (gud-mips-p |
13eaa026 RS |
625 | (gud-def gud-break "stop at \"%f\":%l" |
626 | "\C-b" "Set breakpoint at current line.") | |
627 | (gud-def gud-finish "return" "\C-f" "Finish executing current function.")) | |
f266485d RS |
628 | (gud-irix-p |
629 | (gud-def gud-break "stop at \"%d%f\":%l" | |
630 | "\C-b" "Set breakpoint at current line.") | |
631 | (gud-def gud-finish "return" "\C-f" "Finish executing current function.") | |
632 | ;; Make dbx give out the source location info that we need. | |
633 | (process-send-string (get-buffer-process gud-comint-buffer) | |
634 | "printf \"\032\032%1d:\",$curline;file\n")) | |
635 | ((or (string-match "-sunos" (symbol-name system-type)) | |
636 | (string-match "-solaris" (symbol-name system-type))) | |
637 | ;; The following works for both the UCB and SunPro 2.0.1 versions | |
638 | ;; of dbx. The `stop' is lost using the `\n' separator as in the | |
639 | ;; default case. Is there a dbx where the newline is actually | |
640 | ;; necessary? (d.love@dl.ac.uk) | |
641 | (gud-def gud-break "file \"%d%f\";stop at %l" | |
642 | "\C-b" "Set breakpoint at current line.")) | |
13eaa026 RS |
643 | (t |
644 | (gud-def gud-break "file \"%d%f\"\nstop at %l" | |
645 | "\C-b" "Set breakpoint at current line."))) | |
646 | ||
dd8e46c7 RS |
647 | (gud-def gud-remove "clear %l" "\C-d" "Remove breakpoint at current line") |
648 | (gud-def gud-step "step %p" "\C-s" "Step one line with display.") | |
649 | (gud-def gud-stepi "stepi %p" "\C-i" "Step one instruction with display.") | |
650 | (gud-def gud-next "next %p" "\C-n" "Step one line (skip functions).") | |
651 | (gud-def gud-cont "cont" "\C-r" "Continue with display.") | |
ee0155df ER |
652 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") |
653 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
dd8e46c7 | 654 | (gud-def gud-print "print %e" "\C-p" "Evaluate C expression at point.") |
ee0155df | 655 | |
13eaa026 | 656 | (setq comint-prompt-regexp "^[^)\n]*dbx) *") |
f54877b2 | 657 | (setq paragraph-start comint-prompt-regexp) |
13b80a60 ER |
658 | (run-hooks 'dbx-mode-hook) |
659 | ) | |
575661b1 | 660 | \f |
6496f3d2 RS |
661 | ;; ====================================================================== |
662 | ;; xdb (HP PARISC debugger) functions | |
663 | ||
f6376199 JB |
664 | ;;; History of argument lists passed to xdb. |
665 | (defvar gud-xdb-history nil) | |
666 | ||
fce222c7 RS |
667 | (defvar gud-xdb-directories nil |
668 | "*A list of directories that xdb should search for source code. | |
669 | If nil, only source files in the program directory | |
670 | will be known to xdb. | |
671 | ||
672 | The file names should be absolute, or relative to the directory | |
673 | containing the executable being debugged.") | |
674 | ||
a223b10d RM |
675 | (defun gud-xdb-massage-args (file args) |
676 | (nconc (let ((directories gud-xdb-directories) | |
677 | (result nil)) | |
678 | (while directories | |
679 | (setq result (cons (car directories) (cons "-d" result))) | |
680 | (setq directories (cdr directories))) | |
681 | (nreverse (cons file result))) | |
682 | args)) | |
6496f3d2 RS |
683 | |
684 | (defun gud-xdb-file-name (f) | |
685 | "Transform a relative pathname to a full pathname in xdb mode" | |
686 | (let ((result nil)) | |
687 | (if (file-exists-p f) | |
688 | (setq result (expand-file-name f)) | |
fce222c7 RS |
689 | (let ((directories gud-xdb-directories)) |
690 | (while directories | |
691 | (let ((path (concat (car directories) "/" f))) | |
6496f3d2 RS |
692 | (if (file-exists-p path) |
693 | (setq result (expand-file-name path) | |
fce222c7 RS |
694 | directories nil))) |
695 | (setq directories (cdr directories))))) | |
6496f3d2 RS |
696 | result)) |
697 | ||
698 | ;; xdb does not print the lines all at once, so we have to accumulate them | |
6496f3d2 RS |
699 | (defun gud-xdb-marker-filter (string) |
700 | (let (result) | |
701 | (if (or (string-match comint-prompt-regexp string) | |
702 | (string-match ".*\012" string)) | |
f266485d RS |
703 | (setq result (concat gud-marker-acc string) |
704 | gud-marker-acc "") | |
705 | (setq gud-marker-acc (concat gud-marker-acc string))) | |
6496f3d2 RS |
706 | (if result |
707 | (if (or (string-match "\\([^\n \t:]+\\): [^:]+: \\([0-9]+\\):" result) | |
708 | (string-match "[^: \t]+:[ \t]+\\([^:]+\\): [^:]+: \\([0-9]+\\):" | |
709 | result)) | |
710 | (let ((line (string-to-int | |
711 | (substring result (match-beginning 2) (match-end 2)))) | |
712 | (file (gud-xdb-file-name | |
713 | (substring result (match-beginning 1) (match-end 1))))) | |
714 | (if file | |
715 | (setq gud-last-frame (cons file line)))))) | |
716 | (or result ""))) | |
717 | ||
6496f3d2 RS |
718 | (defun gud-xdb-find-file (f) |
719 | (let ((realf (gud-xdb-file-name f))) | |
720 | (if realf (find-file-noselect realf)))) | |
721 | ||
722 | ;;;###autoload | |
a223b10d | 723 | (defun xdb (command-line) |
6496f3d2 RS |
724 | "Run xdb on program FILE in buffer *gud-FILE*. |
725 | The directory containing FILE becomes the initial working directory | |
726 | and source-file directory for your debugger. | |
727 | ||
fce222c7 | 728 | You can set the variable 'gud-xdb-directories' to a list of program source |
6496f3d2 | 729 | directories if your program contains sources from more than one directory." |
f6376199 | 730 | (interactive |
a223b10d | 731 | (list (read-from-minibuffer "Run xdb (like this): " |
f6376199 JB |
732 | (if (consp gud-xdb-history) |
733 | (car gud-xdb-history) | |
a223b10d | 734 | "xdb ") |
f6376199 JB |
735 | nil nil |
736 | '(gud-xdb-history . 1)))) | |
a223b10d RM |
737 | (gud-overload-functions '((gud-massage-args . gud-xdb-massage-args) |
738 | (gud-marker-filter . gud-xdb-marker-filter) | |
739 | (gud-find-file . gud-xdb-find-file))) | |
6496f3d2 | 740 | |
a223b10d | 741 | (gud-common-init command-line) |
6496f3d2 RS |
742 | |
743 | (gud-def gud-break "b %f:%l" "\C-b" "Set breakpoint at current line.") | |
744 | (gud-def gud-tbreak "b %f:%l\\t" "\C-t" | |
745 | "Set temporary breakpoint at current line.") | |
746 | (gud-def gud-remove "db" "\C-d" "Remove breakpoint at current line") | |
747 | (gud-def gud-step "s %p" "\C-s" "Step one line with display.") | |
748 | (gud-def gud-next "S %p" "\C-n" "Step one line (skip functions).") | |
749 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
750 | (gud-def gud-up "up %p" "<" "Up (numeric arg) stack frames.") | |
751 | (gud-def gud-down "down %p" ">" "Down (numeric arg) stack frames.") | |
752 | (gud-def gud-finish "bu\\t" "\C-f" "Finish executing current function.") | |
753 | (gud-def gud-print "p %e" "\C-p" "Evaluate C expression at point.") | |
754 | ||
755 | (setq comint-prompt-regexp "^>") | |
f54877b2 | 756 | (setq paragraph-start comint-prompt-regexp) |
6496f3d2 | 757 | (run-hooks 'xdb-mode-hook)) |
575661b1 RS |
758 | \f |
759 | ;; ====================================================================== | |
760 | ;; perldb functions | |
761 | ||
762 | ;;; History of argument lists passed to perldb. | |
763 | (defvar gud-perldb-history nil) | |
764 | ||
765 | (defun gud-perldb-massage-args (file args) | |
2c32e5c6 | 766 | (cons "-d" (cons file (cons "-emacs" args)))) |
575661b1 RS |
767 | |
768 | ;; There's no guarantee that Emacs will hand the filter the entire | |
769 | ;; marker at once; it could be broken up across several strings. We | |
770 | ;; might even receive a big chunk with several markers in it. If we | |
771 | ;; receive a chunk of text which looks like it might contain the | |
772 | ;; beginning of a marker, we save it here between calls to the | |
773 | ;; filter. | |
774 | (defvar gud-perldb-marker-acc "") | |
775 | ||
776 | (defun gud-perldb-marker-filter (string) | |
777 | (save-match-data | |
f266485d | 778 | (setq gud-marker-acc (concat gud-marker-acc string)) |
575661b1 RS |
779 | (let ((output "")) |
780 | ||
781 | ;; Process all the complete markers in this chunk. | |
76214250 | 782 | (while (string-match "\032\032\\([^:\n]*\\):\\([0-9]*\\):.*\n" |
f266485d | 783 | gud-marker-acc) |
575661b1 RS |
784 | (setq |
785 | ||
786 | ;; Extract the frame position from the marker. | |
787 | gud-last-frame | |
f266485d RS |
788 | (cons (substring gud-marker-acc (match-beginning 1) (match-end 1)) |
789 | (string-to-int (substring gud-marker-acc | |
575661b1 RS |
790 | (match-beginning 2) |
791 | (match-end 2)))) | |
792 | ||
793 | ;; Append any text before the marker to the output we're going | |
794 | ;; to return - we don't include the marker in this text. | |
795 | output (concat output | |
f266485d | 796 | (substring gud-marker-acc 0 (match-beginning 0))) |
575661b1 RS |
797 | |
798 | ;; Set the accumulator to the remaining text. | |
f266485d | 799 | gud-marker-acc (substring gud-marker-acc (match-end 0)))) |
575661b1 RS |
800 | |
801 | ;; Does the remaining text look like it might end with the | |
802 | ;; beginning of another marker? If it does, then keep it in | |
f266485d | 803 | ;; gud-marker-acc until we receive the rest of it. Since we |
575661b1 RS |
804 | ;; know the full marker regexp above failed, it's pretty simple to |
805 | ;; test for marker starts. | |
76214250 | 806 | (if (string-match "\032.*\\'" gud-marker-acc) |
575661b1 RS |
807 | (progn |
808 | ;; Everything before the potential marker start can be output. | |
f266485d | 809 | (setq output (concat output (substring gud-marker-acc |
575661b1 RS |
810 | 0 (match-beginning 0)))) |
811 | ||
812 | ;; Everything after, we save, to combine with later input. | |
f266485d RS |
813 | (setq gud-marker-acc |
814 | (substring gud-marker-acc (match-beginning 0)))) | |
575661b1 | 815 | |
f266485d RS |
816 | (setq output (concat output gud-marker-acc) |
817 | gud-marker-acc "")) | |
575661b1 RS |
818 | |
819 | output))) | |
820 | ||
821 | (defun gud-perldb-find-file (f) | |
822 | (find-file-noselect f)) | |
823 | ||
824 | ;;;###autoload | |
825 | (defun perldb (command-line) | |
826 | "Run perldb on program FILE in buffer *gud-FILE*. | |
827 | The directory containing FILE becomes the initial working directory | |
828 | and source-file directory for your debugger." | |
829 | (interactive | |
830 | (list (read-from-minibuffer "Run perldb (like this): " | |
831 | (if (consp gud-perldb-history) | |
832 | (car gud-perldb-history) | |
2c32e5c6 | 833 | "perl ") |
575661b1 RS |
834 | nil nil |
835 | '(gud-perldb-history . 1)))) | |
836 | (gud-overload-functions '((gud-massage-args . gud-perldb-massage-args) | |
837 | (gud-marker-filter . gud-perldb-marker-filter) | |
838 | (gud-find-file . gud-perldb-find-file) | |
839 | )) | |
840 | ||
841 | (gud-common-init command-line) | |
842 | ||
2c32e5c6 RS |
843 | (gud-def gud-break "b %l" "\C-b" "Set breakpoint at current line.") |
844 | (gud-def gud-remove "d %l" "\C-d" "Remove breakpoint at current line") | |
845 | (gud-def gud-step "s" "\C-s" "Step one source line with display.") | |
846 | (gud-def gud-next "n" "\C-n" "Step one line (skip functions).") | |
847 | (gud-def gud-cont "c" "\C-r" "Continue with display.") | |
848 | ; (gud-def gud-finish "finish" "\C-f" "Finish executing current function.") | |
849 | ; (gud-def gud-up "up %p" "<" "Up N stack frames (numeric arg).") | |
850 | ; (gud-def gud-down "down %p" ">" "Down N stack frames (numeric arg).") | |
851 | (gud-def gud-print "%e" "\C-p" "Evaluate perl expression at point.") | |
852 | ||
853 | (setq comint-prompt-regexp "^ DB<[0-9]+> ") | |
f54877b2 | 854 | (setq paragraph-start comint-prompt-regexp) |
2c32e5c6 | 855 | (run-hooks 'perldb-mode-hook) |
575661b1 | 856 | ) |
6496f3d2 | 857 | |
13b80a60 ER |
858 | ;; |
859 | ;; End of debugger-specific information | |
10a4c11f | 860 | ;; |
13b80a60 | 861 | |
575661b1 | 862 | \f |
53eb3a97 JB |
863 | ;;; When we send a command to the debugger via gud-call, it's annoying |
864 | ;;; to see the command and the new prompt inserted into the debugger's | |
865 | ;;; buffer; we have other ways of knowing the command has completed. | |
866 | ;;; | |
867 | ;;; If the buffer looks like this: | |
868 | ;;; -------------------- | |
869 | ;;; (gdb) set args foo bar | |
870 | ;;; (gdb) -!- | |
871 | ;;; -------------------- | |
872 | ;;; (the -!- marks the location of point), and we type `C-x SPC' in a | |
873 | ;;; source file to set a breakpoint, we want the buffer to end up like | |
874 | ;;; this: | |
875 | ;;; -------------------- | |
876 | ;;; (gdb) set args foo bar | |
877 | ;;; Breakpoint 1 at 0x92: file make-docfile.c, line 49. | |
878 | ;;; (gdb) -!- | |
879 | ;;; -------------------- | |
880 | ;;; Essentially, the old prompt is deleted, and the command's output | |
881 | ;;; and the new prompt take its place. | |
882 | ;;; | |
883 | ;;; Not echoing the command is easy enough; you send it directly using | |
884 | ;;; process-send-string, and it never enters the buffer. However, | |
885 | ;;; getting rid of the old prompt is trickier; you don't want to do it | |
886 | ;;; when you send the command, since that will result in an annoying | |
887 | ;;; flicker as the prompt is deleted, redisplay occurs while Emacs | |
888 | ;;; waits for a response from the debugger, and the new prompt is | |
889 | ;;; inserted. Instead, we'll wait until we actually get some output | |
890 | ;;; from the subprocess before we delete the prompt. If the command | |
891 | ;;; produced no output other than a new prompt, that prompt will most | |
892 | ;;; likely be in the first chunk of output received, so we will delete | |
893 | ;;; the prompt and then replace it with an identical one. If the | |
894 | ;;; command produces output, the prompt is moving anyway, so the | |
895 | ;;; flicker won't be annoying. | |
896 | ;;; | |
897 | ;;; So - when we want to delete the prompt upon receipt of the next | |
898 | ;;; chunk of debugger output, we position gud-delete-prompt-marker at | |
899 | ;;; the start of the prompt; the process filter will notice this, and | |
900 | ;;; delete all text between it and the process output marker. If | |
901 | ;;; gud-delete-prompt-marker points nowhere, we leave the current | |
902 | ;;; prompt alone. | |
903 | (defvar gud-delete-prompt-marker nil) | |
904 | ||
13b80a60 ER |
905 | \f |
906 | (defun gud-mode () | |
907 | "Major mode for interacting with an inferior debugger process. | |
24d725c2 | 908 | |
6496f3d2 RS |
909 | You start it up with one of the commands M-x gdb, M-x sdb, M-x dbx, |
910 | or M-x xdb. Each entry point finishes by executing a hook; `gdb-mode-hook', | |
911 | `sdb-mode-hook', `dbx-mode-hook' or `xdb-mode-hook' respectively. | |
24d725c2 | 912 | |
ee0155df ER |
913 | After startup, the following commands are available in both the GUD |
914 | interaction buffer and any source buffer GUD visits due to a breakpoint stop | |
915 | or step operation: | |
13b80a60 | 916 | |
ee0155df ER |
917 | \\[gud-break] sets a breakpoint at the current file and line. In the |
918 | GUD buffer, the current file and line are those of the last breakpoint or | |
919 | step. In a source buffer, they are the buffer's file and current line. | |
920 | ||
45025813 ER |
921 | \\[gud-remove] removes breakpoints on the current file and line. |
922 | ||
ee0155df | 923 | \\[gud-refresh] displays in the source window the last line referred to |
24d725c2 | 924 | in the gud buffer. |
13b80a60 | 925 | |
ee0155df ER |
926 | \\[gud-step], \\[gud-next], and \\[gud-stepi] do a step-one-line, |
927 | step-one-line (not entering function calls), and step-one-instruction | |
928 | and then update the source window with the current file and position. | |
929 | \\[gud-cont] continues execution. | |
13b80a60 | 930 | |
ee0155df ER |
931 | \\[gud-print] tries to find the largest C lvalue or function-call expression |
932 | around point, and sends it to the debugger for value display. | |
24d725c2 | 933 | |
6496f3d2 RS |
934 | The above commands are common to all supported debuggers except xdb which |
935 | does not support stepping instructions. | |
24d725c2 | 936 | |
6496f3d2 | 937 | Under gdb, sdb and xdb, \\[gud-tbreak] behaves exactly like \\[gud-break], |
ee0155df ER |
938 | except that the breakpoint is temporary; that is, it is removed when |
939 | execution stops on it. | |
24d725c2 | 940 | |
6496f3d2 | 941 | Under gdb, dbx, and xdb, \\[gud-up] pops up through an enclosing stack |
ee0155df | 942 | frame. \\[gud-down] drops back down through one. |
24d725c2 | 943 | |
6496f3d2 | 944 | If you are using gdb or xdb, \\[gud-finish] runs execution to the return from |
ee0155df | 945 | the current function and stops. |
24d725c2 | 946 | |
dcec1a3b RS |
947 | All the keystrokes above are accessible in the GUD buffer |
948 | with the prefix C-c, and in all buffers through the prefix C-x C-a. | |
45025813 | 949 | |
ee0155df ER |
950 | All pre-defined functions for which the concept make sense repeat |
951 | themselves the appropriate number of times if you give a prefix | |
952 | argument. | |
13b80a60 | 953 | |
dcec1a3b | 954 | You may use the `gud-def' macro in the initialization hook to define other |
ee0155df | 955 | commands. |
13b80a60 | 956 | |
24d725c2 ER |
957 | Other commands for interacting with the debugger process are inherited from |
958 | comint mode, which see." | |
13b80a60 ER |
959 | (interactive) |
960 | (comint-mode) | |
13b80a60 ER |
961 | (setq major-mode 'gud-mode) |
962 | (setq mode-name "Debugger") | |
0b358e64 | 963 | (setq mode-line-process '(":%s")) |
ee0155df | 964 | (use-local-map (copy-keymap comint-mode-map)) |
2b64612d | 965 | (define-key (current-local-map) "\C-c\C-l" 'gud-refresh) |
13b80a60 ER |
966 | (make-local-variable 'gud-last-frame) |
967 | (setq gud-last-frame nil) | |
968 | (make-local-variable 'comint-prompt-regexp) | |
f54877b2 | 969 | (make-local-variable 'paragraph-start) |
53eb3a97 JB |
970 | (make-local-variable 'gud-delete-prompt-marker) |
971 | (setq gud-delete-prompt-marker (make-marker)) | |
13b80a60 ER |
972 | (run-hooks 'gud-mode-hook) |
973 | ) | |
974 | ||
a223b10d RM |
975 | ;; Chop STRING into words separated by SPC or TAB and return a list of them. |
976 | (defun gud-chop-words (string) | |
977 | (let ((i 0) (beg 0) | |
978 | (len (length string)) | |
979 | (words nil)) | |
980 | (while (< i len) | |
981 | (if (memq (aref string i) '(?\t ? )) | |
982 | (progn | |
983 | (setq words (cons (substring string beg i) words) | |
984 | beg (1+ i)) | |
985 | (while (and (< beg len) (memq (aref string beg) '(?\t ? ))) | |
986 | (setq beg (1+ beg))) | |
987 | (setq i (1+ beg))) | |
988 | (setq i (1+ i)))) | |
989 | (if (< beg len) | |
990 | (setq words (cons (substring string beg) words))) | |
991 | (nreverse words))) | |
992 | ||
993 | ;; Perform initializations common to all debuggers. | |
994 | (defun gud-common-init (command-line) | |
995 | (let* ((words (gud-chop-words command-line)) | |
996 | (program (car words)) | |
997 | (file-word (let ((w (cdr words))) | |
998 | (while (and w (= ?- (aref (car w) 0))) | |
999 | (setq w (cdr w))) | |
1000 | (car w))) | |
1001 | (args (delq file-word (cdr words))) | |
52b85866 RS |
1002 | (file (and file-word |
1003 | (expand-file-name (substitute-in-file-name file-word)))) | |
1004 | (filepart (and file-word (file-name-nondirectory file)))) | |
ee0155df | 1005 | (switch-to-buffer (concat "*gud-" filepart "*")) |
52b85866 | 1006 | (and file-word (setq default-directory (file-name-directory file))) |
ee0155df ER |
1007 | (or (bolp) (newline)) |
1008 | (insert "Current directory is " default-directory "\n") | |
a223b10d | 1009 | (apply 'make-comint (concat "gud-" filepart) program nil |
52b85866 | 1010 | (if file-word (gud-massage-args file args)))) |
13b80a60 ER |
1011 | (gud-mode) |
1012 | (set-process-filter (get-buffer-process (current-buffer)) 'gud-filter) | |
1013 | (set-process-sentinel (get-buffer-process (current-buffer)) 'gud-sentinel) | |
13b80a60 ER |
1014 | (gud-set-buffer) |
1015 | ) | |
1016 | ||
1017 | (defun gud-set-buffer () | |
1018 | (cond ((eq major-mode 'gud-mode) | |
ee0155df ER |
1019 | (setq gud-comint-buffer (current-buffer))))) |
1020 | ||
1021 | ;; These functions are responsible for inserting output from your debugger | |
1022 | ;; into the buffer. The hard work is done by the method that is | |
1023 | ;; the value of gud-marker-filter. | |
13b80a60 | 1024 | |
ee0155df | 1025 | (defun gud-filter (proc string) |
13b80a60 | 1026 | ;; Here's where the actual buffer insertion is done |
5afe3a2b RS |
1027 | (let ((inhibit-quit t) |
1028 | output) | |
ee0155df ER |
1029 | (save-excursion |
1030 | (set-buffer (process-buffer proc)) | |
78328f33 KH |
1031 | ;; If we have been so requested, delete the debugger prompt. |
1032 | (if (marker-buffer gud-delete-prompt-marker) | |
1033 | (progn | |
1034 | (delete-region (process-mark proc) gud-delete-prompt-marker) | |
1035 | (set-marker gud-delete-prompt-marker nil))) | |
5afe3a2b RS |
1036 | ;; Save the process output, checking for source file markers. |
1037 | (setq output (gud-marker-filter string)) | |
78328f33 KH |
1038 | ;; Check for a filename-and-line number. |
1039 | ;; Don't display the specified file | |
1040 | ;; unless (1) point is at or after the position where output appears | |
1041 | ;; and (2) this buffer is on the screen. | |
1042 | (if (and gud-last-frame | |
1043 | (>= (point) (process-mark proc)) | |
1044 | (get-buffer-window (current-buffer))) | |
5afe3a2b RS |
1045 | (gud-display-frame)) |
1046 | ;; Let the comint filter do the actual insertion. | |
1047 | ;; That lets us inherit various comint features. | |
1048 | (comint-output-filter proc output)))) | |
13b80a60 ER |
1049 | |
1050 | (defun gud-sentinel (proc msg) | |
1051 | (cond ((null (buffer-name (process-buffer proc))) | |
1052 | ;; buffer killed | |
1053 | ;; Stop displaying an arrow in a source file. | |
1054 | (setq overlay-arrow-position nil) | |
1055 | (set-process-buffer proc nil)) | |
1056 | ((memq (process-status proc) '(signal exit)) | |
1057 | ;; Stop displaying an arrow in a source file. | |
1058 | (setq overlay-arrow-position nil) | |
1059 | ;; Fix the mode line. | |
1060 | (setq mode-line-process | |
0b358e64 | 1061 | (concat ":" |
13b80a60 ER |
1062 | (symbol-name (process-status proc)))) |
1063 | (let* ((obuf (current-buffer))) | |
1064 | ;; save-excursion isn't the right thing if | |
1065 | ;; process-buffer is current-buffer | |
1066 | (unwind-protect | |
1067 | (progn | |
1068 | ;; Write something in *compilation* and hack its mode line, | |
1069 | (set-buffer (process-buffer proc)) | |
1070 | ;; Force mode line redisplay soon | |
1071 | (set-buffer-modified-p (buffer-modified-p)) | |
1072 | (if (eobp) | |
1073 | (insert ?\n mode-name " " msg) | |
1074 | (save-excursion | |
1075 | (goto-char (point-max)) | |
1076 | (insert ?\n mode-name " " msg))) | |
1077 | ;; If buffer and mode line will show that the process | |
1078 | ;; is dead, we can delete it now. Otherwise it | |
1079 | ;; will stay around until M-x list-processes. | |
1080 | (delete-process proc)) | |
1081 | ;; Restore old buffer, but don't restore old point | |
1082 | ;; if obuf is the gud buffer. | |
1083 | (set-buffer obuf)))))) | |
1084 | ||
13b80a60 ER |
1085 | (defun gud-display-frame () |
1086 | "Find and obey the last filename-and-line marker from the debugger. | |
1087 | Obeying it means displaying in another window the specified file and line." | |
1088 | (interactive) | |
1089 | (if gud-last-frame | |
ee0155df | 1090 | (progn |
13b80a60 ER |
1091 | (gud-set-buffer) |
1092 | (gud-display-line (car gud-last-frame) (cdr gud-last-frame)) | |
32ab4c10 JB |
1093 | (setq gud-last-last-frame gud-last-frame |
1094 | gud-last-frame nil)))) | |
13b80a60 ER |
1095 | |
1096 | ;; Make sure the file named TRUE-FILE is in a buffer that appears on the screen | |
1097 | ;; and that its line LINE is visible. | |
1098 | ;; Put the overlay-arrow on the line LINE in that buffer. | |
ee0155df ER |
1099 | ;; Most of the trickiness in here comes from wanting to preserve the current |
1100 | ;; region-restriction if that's possible. We use an explicit display-buffer | |
1101 | ;; to get around the fact that this is called inside a save-excursion. | |
13b80a60 ER |
1102 | |
1103 | (defun gud-display-line (true-file line) | |
ee0155df ER |
1104 | (let* ((buffer (gud-find-file true-file)) |
1105 | (window (display-buffer buffer)) | |
13b80a60 | 1106 | (pos)) |
dd8e46c7 RS |
1107 | ;;; (if (equal buffer (current-buffer)) |
1108 | ;;; nil | |
1109 | ;;; (setq buffer-read-only nil)) | |
13b80a60 | 1110 | (save-excursion |
dd8e46c7 | 1111 | ;;; (setq buffer-read-only t) |
13b80a60 ER |
1112 | (set-buffer buffer) |
1113 | (save-restriction | |
1114 | (widen) | |
1115 | (goto-line line) | |
1116 | (setq pos (point)) | |
1117 | (setq overlay-arrow-string "=>") | |
1118 | (or overlay-arrow-position | |
1119 | (setq overlay-arrow-position (make-marker))) | |
1120 | (set-marker overlay-arrow-position (point) (current-buffer))) | |
1121 | (cond ((or (< pos (point-min)) (> pos (point-max))) | |
1122 | (widen) | |
1123 | (goto-char pos)))) | |
1124 | (set-window-point window overlay-arrow-position))) | |
53eb3a97 | 1125 | |
ee0155df ER |
1126 | ;;; The gud-call function must do the right thing whether its invoking |
1127 | ;;; keystroke is from the GUD buffer itself (via major-mode binding) | |
5b08a462 ER |
1128 | ;;; or a C buffer. In the former case, we want to supply data from |
1129 | ;;; gud-last-frame. Here's how we do it: | |
13b80a60 | 1130 | |
ee0155df | 1131 | (defun gud-format-command (str arg) |
13eaa026 RS |
1132 | (let ((insource (not (eq (current-buffer) gud-comint-buffer))) |
1133 | (frame (or gud-last-frame gud-last-last-frame)) | |
1134 | result) | |
1135 | (while (and str (string-match "\\([^%]*\\)%\\([adeflp]\\)" str)) | |
1136 | (let ((key (string-to-char (substring str (match-beginning 2)))) | |
1137 | subst) | |
1138 | (cond | |
1139 | ((eq key ?f) | |
1140 | (setq subst (file-name-nondirectory (if insource | |
1141 | (buffer-file-name) | |
1142 | (car frame))))) | |
1143 | ((eq key ?d) | |
1144 | (setq subst (file-name-directory (if insource | |
7f359a21 | 1145 | (buffer-file-name) |
13eaa026 RS |
1146 | (car frame))))) |
1147 | ((eq key ?l) | |
1148 | (setq subst (if insource | |
1149 | (save-excursion | |
1150 | (beginning-of-line) | |
1151 | (save-restriction (widen) | |
1152 | (1+ (count-lines 1 (point))))) | |
1153 | (cdr frame)))) | |
1154 | ((eq key ?e) | |
1155 | (setq subst (find-c-expr))) | |
1156 | ((eq key ?a) | |
1157 | (setq subst (gud-read-address))) | |
1158 | ((eq key ?p) | |
1159 | (setq subst (if arg (int-to-string arg) "")))) | |
1160 | (setq result (concat result | |
1161 | (substring str (match-beginning 1) (match-end 1)) | |
1162 | subst))) | |
1163 | (setq str (substring str (match-end 2)))) | |
1164 | ;; There might be text left in STR when the loop ends. | |
1165 | (concat result str))) | |
13b80a60 | 1166 | |
6bde8427 | 1167 | (defun gud-read-address () |
13b80a60 ER |
1168 | "Return a string containing the core-address found in the buffer at point." |
1169 | (save-excursion | |
6bde8427 | 1170 | (let ((pt (point)) found begin) |
ee0155df | 1171 | (setq found (if (search-backward "0x" (- pt 7) t) (point))) |
6bde8427 JB |
1172 | (cond |
1173 | (found (forward-char 2) | |
1174 | (buffer-substring found | |
1175 | (progn (re-search-forward "[^0-9a-f]") | |
1176 | (forward-char -1) | |
1177 | (point)))) | |
1178 | (t (setq begin (progn (re-search-backward "[^0-9]") | |
1179 | (forward-char 1) | |
1180 | (point))) | |
1181 | (forward-char 1) | |
1182 | (re-search-forward "[^0-9]") | |
1183 | (forward-char -1) | |
1184 | (buffer-substring begin (point))))))) | |
13b80a60 | 1185 | |
ee0155df ER |
1186 | (defun gud-call (fmt &optional arg) |
1187 | (let ((msg (gud-format-command fmt arg))) | |
1188 | (message "Command: %s" msg) | |
1189 | (sit-for 0) | |
1190 | (gud-basic-call msg))) | |
13b80a60 | 1191 | |
ee0155df ER |
1192 | (defun gud-basic-call (command) |
1193 | "Invoke the debugger COMMAND displaying source in other window." | |
1194 | (interactive) | |
1195 | (gud-set-buffer) | |
1196 | (let ((command (concat command "\n")) | |
1197 | (proc (get-buffer-process gud-comint-buffer))) | |
1198 | ||
1199 | ;; Arrange for the current prompt to get deleted. | |
1200 | (save-excursion | |
1201 | (set-buffer gud-comint-buffer) | |
1202 | (goto-char (process-mark proc)) | |
1203 | (beginning-of-line) | |
1204 | (if (looking-at comint-prompt-regexp) | |
1205 | (set-marker gud-delete-prompt-marker (point)))) | |
1206 | (process-send-string proc command))) | |
1207 | ||
1208 | (defun gud-refresh (&optional arg) | |
1209 | "Fix up a possibly garbled display, and redraw the arrow." | |
13b80a60 | 1210 | (interactive "P") |
ee0155df | 1211 | (recenter arg) |
32ab4c10 | 1212 | (or gud-last-frame (setq gud-last-frame gud-last-last-frame)) |
ee0155df | 1213 | (gud-display-frame)) |
dcec1a3b | 1214 | \f |
ee0155df ER |
1215 | ;;; Code for parsing expressions out of C code. The single entry point is |
1216 | ;;; find-c-expr, which tries to return an lvalue expression from around point. | |
1217 | ;;; | |
1218 | ;;; The rest of this file is a hacked version of gdbsrc.el by | |
1219 | ;;; Debby Ayers <ayers@asc.slb.com>, | |
1220 | ;;; Rich Schaefer <schaefer@asc.slb.com> Schlumberger, Austin, Tx. | |
ee0155df ER |
1221 | |
1222 | (defun find-c-expr () | |
1223 | "Returns the C expr that surrounds point." | |
1224 | (interactive) | |
1225 | (save-excursion | |
1226 | (let ((p) (expr) (test-expr)) | |
1227 | (setq p (point)) | |
1228 | (setq expr (expr-cur)) | |
1229 | (setq test-expr (expr-prev)) | |
1230 | (while (expr-compound test-expr expr) | |
1231 | (setq expr (cons (car test-expr) (cdr expr))) | |
1232 | (goto-char (car expr)) | |
dcec1a3b | 1233 | (setq test-expr (expr-prev))) |
ee0155df ER |
1234 | (goto-char p) |
1235 | (setq test-expr (expr-next)) | |
1236 | (while (expr-compound expr test-expr) | |
1237 | (setq expr (cons (car expr) (cdr test-expr))) | |
1238 | (setq test-expr (expr-next)) | |
1239 | ) | |
dcec1a3b | 1240 | (buffer-substring (car expr) (cdr expr))))) |
ee0155df ER |
1241 | |
1242 | (defun expr-cur () | |
1243 | "Returns the expr that point is in; point is set to beginning of expr. | |
1244 | The expr is represented as a cons cell, where the car specifies the point in | |
1245 | the current buffer that marks the beginning of the expr and the cdr specifies | |
dcec1a3b | 1246 | the character after the end of the expr." |
ee0155df | 1247 | (let ((p (point)) (begin) (end)) |
dcec1a3b | 1248 | (expr-backward-sexp) |
ee0155df | 1249 | (setq begin (point)) |
dcec1a3b | 1250 | (expr-forward-sexp) |
ee0155df ER |
1251 | (setq end (point)) |
1252 | (if (>= p end) | |
1253 | (progn | |
1254 | (setq begin p) | |
1255 | (goto-char p) | |
dcec1a3b | 1256 | (expr-forward-sexp) |
ee0155df ER |
1257 | (setq end (point)) |
1258 | ) | |
1259 | ) | |
1260 | (goto-char begin) | |
dcec1a3b | 1261 | (cons begin end))) |
ee0155df | 1262 | |
dcec1a3b RS |
1263 | (defun expr-backward-sexp () |
1264 | "Version of `backward-sexp' that catches errors." | |
ee0155df ER |
1265 | (condition-case nil |
1266 | (backward-sexp) | |
1267 | (error t))) | |
1268 | ||
dcec1a3b RS |
1269 | (defun expr-forward-sexp () |
1270 | "Version of `forward-sexp' that catches errors." | |
ee0155df ER |
1271 | (condition-case nil |
1272 | (forward-sexp) | |
1273 | (error t))) | |
1274 | ||
1275 | (defun expr-prev () | |
1276 | "Returns the previous expr, point is set to beginning of that expr. | |
1277 | The expr is represented as a cons cell, where the car specifies the point in | |
1278 | the current buffer that marks the beginning of the expr and the cdr specifies | |
1279 | the character after the end of the expr" | |
1280 | (let ((begin) (end)) | |
dcec1a3b | 1281 | (expr-backward-sexp) |
ee0155df | 1282 | (setq begin (point)) |
dcec1a3b | 1283 | (expr-forward-sexp) |
ee0155df ER |
1284 | (setq end (point)) |
1285 | (goto-char begin) | |
1286 | (cons begin end))) | |
1287 | ||
1288 | (defun expr-next () | |
1289 | "Returns the following expr, point is set to beginning of that expr. | |
1290 | The expr is represented as a cons cell, where the car specifies the point in | |
1291 | the current buffer that marks the beginning of the expr and the cdr specifies | |
dcec1a3b | 1292 | the character after the end of the expr." |
ee0155df | 1293 | (let ((begin) (end)) |
dcec1a3b RS |
1294 | (expr-forward-sexp) |
1295 | (expr-forward-sexp) | |
ee0155df | 1296 | (setq end (point)) |
dcec1a3b | 1297 | (expr-backward-sexp) |
ee0155df | 1298 | (setq begin (point)) |
dcec1a3b | 1299 | (cons begin end))) |
ee0155df ER |
1300 | |
1301 | (defun expr-compound-sep (span-start span-end) | |
1302 | "Returns '.' for '->' & '.', returns ' ' for white space, | |
eb8c3be9 | 1303 | returns '?' for other punctuation." |
ee0155df ER |
1304 | (let ((result ? ) |
1305 | (syntax)) | |
1306 | (while (< span-start span-end) | |
1307 | (setq syntax (char-syntax (char-after span-start))) | |
1308 | (cond | |
1309 | ((= syntax ? ) t) | |
1310 | ((= syntax ?.) (setq syntax (char-after span-start)) | |
1311 | (cond | |
1312 | ((= syntax ?.) (setq result ?.)) | |
1313 | ((and (= syntax ?-) (= (char-after (+ span-start 1)) ?>)) | |
1314 | (setq result ?.) | |
1315 | (setq span-start (+ span-start 1))) | |
1316 | (t (setq span-start span-end) | |
1317 | (setq result ??))))) | |
1318 | (setq span-start (+ span-start 1))) | |
dcec1a3b | 1319 | result)) |
ee0155df ER |
1320 | |
1321 | (defun expr-compound (first second) | |
dcec1a3b RS |
1322 | "Non-nil if concatenating FIRST and SECOND makes a single C token. |
1323 | The two exprs are represented as a cons cells, where the car | |
ee0155df | 1324 | specifies the point in the current buffer that marks the beginning of the |
dcec1a3b | 1325 | expr and the cdr specifies the character after the end of the expr. |
ee0155df ER |
1326 | Link exprs of the form: |
1327 | Expr -> Expr | |
1328 | Expr . Expr | |
1329 | Expr (Expr) | |
1330 | Expr [Expr] | |
1331 | (Expr) Expr | |
1332 | [Expr] Expr" | |
1333 | (let ((span-start (cdr first)) | |
1334 | (span-end (car second)) | |
1335 | (syntax)) | |
1336 | (setq syntax (expr-compound-sep span-start span-end)) | |
1337 | (cond | |
1338 | ((= (car first) (car second)) nil) | |
1339 | ((= (cdr first) (cdr second)) nil) | |
1340 | ((= syntax ?.) t) | |
1341 | ((= syntax ? ) | |
1342 | (setq span-start (char-after (- span-start 1))) | |
1343 | (setq span-end (char-after span-end)) | |
1344 | (cond | |
1345 | ((= span-start ?) ) t ) | |
1346 | ((= span-start ?] ) t ) | |
1347 | ((= span-end ?( ) t ) | |
1348 | ((= span-end ?[ ) t ) | |
1349 | (t nil)) | |
1350 | ) | |
dcec1a3b | 1351 | (t nil)))) |
5b08a462 | 1352 | |
96f4e22e RM |
1353 | (provide 'gud) |
1354 | ||
f961a17c | 1355 | ;;; gud.el ends here |