1 ;;; compile.el --- run compiler as inferior of Emacs, parse error messages.
3 ;; Copyright (C) 1985, 86, 87, 93, 94, 1995, 1996 Free Software Foundation, Inc.
5 ;; Author: Roland McGrath <roland@prep.ai.mit.edu>
7 ;; Keywords: tools, processes
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is free software; you can redistribute it and/or modify
12 ;; it under the terms of the GNU General Public License as published by
13 ;; the Free Software Foundation; either version 2, or (at your option)
16 ;; GNU Emacs is distributed in the hope that it will be useful,
17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 ;; GNU General Public License for more details.
21 ;; You should have received a copy of the GNU General Public License
22 ;; along with GNU Emacs; see the file COPYING. If not, write to the
23 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24 ;; Boston, MA 02111-1307, USA.
28 ;; This package provides the compile and grep facilities documented in
29 ;; the Emacs user's manual.
34 (defvar compilation-mode-hook nil
35 "*List of hook functions run by `compilation-mode' (see `run-hooks').")
38 (defvar compilation-window-height nil
39 "*Number of lines in a compilation window. If nil, use Emacs default.")
41 (defvar compilation-error-list nil
42 "List of error message descriptors for visiting erring functions.
43 Each error descriptor is a cons (or nil). Its car is a marker pointing to
44 an error message. If its cdr is a marker, it points to the text of the
45 line the message is about. If its cdr is a cons, it is a list
46 \(\(DIRECTORY . FILE\) LINE [COLUMN]\). Or its cdr may be nil if that
47 error is not interesting.
49 The value may be t instead of a list; this means that the buffer of
50 error messages should be reparsed the next time the list of errors is wanted.
52 Some other commands (like `diff') use this list to control the error
53 message tracking facilities; if you change its structure, you should make
54 sure you also change those packages. Perhaps it is better not to change
57 (defvar compilation-old-error-list nil
58 "Value of `compilation-error-list' after errors were parsed.")
60 (defvar compilation-parse-errors-function 'compilation-parse-errors
61 "Function to call to parse error messages from a compilation.
62 It takes args LIMIT-SEARCH and FIND-AT-LEAST.
63 If LIMIT-SEARCH is non-nil, don't bother parsing past that location.
64 If FIND-AT-LEAST is non-nil, don't bother parsing after finding that
66 It should read in the source files which have errors and set
67 `compilation-error-list' to a list with an element for each error message
68 found. See that variable for more info.")
71 (defvar compilation-buffer-name-function nil
72 "Function to compute the name of a compilation buffer.
73 The function receives one argument, the name of the major mode of the
74 compilation buffer. It should return a string.
75 nil means compute the name with `(concat \"*\" (downcase major-mode) \"*\")'.")
78 (defvar compilation-finish-function nil
79 "*Function to call when a compilation process finishes.
80 It is called with two arguments: the compilation buffer, and a string
81 describing how the process finished.")
83 (defvar compilation-last-buffer nil
84 "The most recent compilation buffer.
85 A buffer becomes most recent when its compilation is started
86 or when it is used with \\[next-error] or \\[compile-goto-error].")
88 (defvar compilation-in-progress nil
89 "List of compilation processes now running.")
90 (or (assq 'compilation-in-progress minor-mode-alist)
91 (setq minor-mode-alist (cons '(compilation-in-progress " Compiling")
94 (defvar compilation-parsing-end nil
95 "Position of end of buffer when last error messages were parsed.")
97 (defvar compilation-error-message "No more errors"
98 "Message to print when no more matches are found.")
100 (defvar compilation-num-errors-found)
102 (defvar compilation-error-regexp-alist
104 ;; NOTE! See also grep-regexp-alist, below.
106 ;; 4.3BSD grep, cc, lint pass 1:
107 ;; /usr/src/foo/foo.c(8): warning: w may be used before set
109 ;; foo.c:8: error message
111 ;; foo.f :16 some horrible error message
112 ;; or GNU utilities with column (GNAT 1.82):
113 ;; foo.adb:2:1: Unit name does not match file name
115 ;; We'll insist that the number be followed by a colon or closing
116 ;; paren, because otherwise this matches just about anything
117 ;; containing a number with spaces around it.
119 \\([a-zA-Z]?:?[^:( \t\n]+\\)[:(][ \t]*\\([0-9]+\\)\\([) \t]\\|\
120 :\\([^0-9\n]\\|\\([0-9]+:\\)\\)\\)" 1 2 5)
123 ;; keyboard.c(537) : warning C4005: 'min' : macro redefinition
124 ;; d:\tmp\test.c(23) : error C2143: syntax error : missing ';' before 'if'
125 ("\n\\(\\([a-zA-Z]:\\)?[^:( \t\n-]+\\)[:(][ \t]*\\([0-9]+\\)[:) \t]" 1 3)
128 ;; Error ping.c 15: Unable to open include file 'sys/types.h'
129 ;; Warning ping.c 68: Call to function 'func' with no prototype
130 ("\n\\(Error\\|Warning\\) \\([a-zA-Z]?:?[^:( \t\n]+\\)\
131 \\([0-9]+\\)\\([) \t]\\|:[^0-9\n]\\)" 2 3)
133 ;; 4.3BSD lint pass 2
134 ;; strcmp: variable # of args. llib-lc(359) :: /usr/src/foo/foo.c(8)
135 ("[ \t:]\\([a-zA-Z]?:?[^:( \t\n]+\\)[:(](+[ \t]*\\([0-9]+\\))[:) \t]*$"
138 ;; 4.3BSD lint pass 3
139 ;; bloofle defined( /users/wolfgang/foo.c(4) ), but never used
141 ;; ("[ \t(]+\\([a-zA-Z]?:?[^:( \t\n]+\\)[:( \t]+\\([0-9]+\\)[:) \t]+" 1 2)
142 ;; which is regexp Impressionism - it matches almost anything!
143 ("([ \t]*\\([a-zA-Z]?:?[^:( \t\n]+\\)[:(][ \t]*\\([0-9]+\\))" 1 2)
145 ;; MIPS lint pass<n>; looks good for SunPro lint also
146 ;; TrimMask (255) in solomon.c may be indistinguishable from TrimMasks (93) in solomon.c due to truncation
147 ("[^ ]+ (\\([0-9]+\\)) in \\([^ ]+\\)" 2 1)
148 ;; name defined but never used: LinInt in cmap_calc.c(199)
149 ("in \\([^(]+\\)(\\([0-9]+\\))$" 1 2)
152 ;; fort: Severe: addstf.f, line 82: Missing operator or delimiter symbol
153 ;; Some SGI cc version:
154 ;; cfe: Warning 835: foo.c, line 2: something
155 ("\n\\(cfe\\|fort\\): [^:\n]*: \\([^ \n]*\\), line \\([0-9]+\\):" 2 3)
156 ;; Error on line 3 of t.f: Execution error unclassifiable statement
157 ;; Unknown who does this:
158 ;; Line 45 of "foo.c": bloofle undefined
159 ;; Absoft FORTRAN 77 Compiler 3.1.3
160 ;; error on line 19 of fplot.f: spelling error?
161 ;; warning on line 17 of fplot.f: data type is undefined for variable d
162 ("\\(\n\\|on \\)[Ll]ine[ \t]+\\([0-9]+\\)[ \t]+\
163 of[ \t]+\"?\\([a-zA-Z]?:?[^\":\n]+\\)\"?:" 3 2)
165 ;; Apollo cc, 4.3BSD fc:
166 ;; "foo.f", line 3: Error: syntax error near end of statement
168 ;; "vvouch.c", line 19.5: 1506-046 (S) Syntax error.
170 ;; File "foobar.ml", lines 5-8, characters 20-155: blah blah
172 ;; "foo.c", line 32 pos 1; (E) syntax error; unexpected symbol: "lossage"
173 ;; GNAT (as of July 94):
174 ;; "foo.adb", line 2(11): warning: file name does not match ...
175 ;; IBM AIX xlc compiler:
176 ;; "src/swapping.c", line 30.34: 1506-342 (W) "/*" detected in comment.
177 ("\"\\([^,\" \n\t]+\\)\", lines? \
178 \\([0-9]+\\)\\([\(.]\\([0-9]+\\)\)?\\)?[:., (-]" 1 2 4)
180 ;; MIPS RISC CC - the one distributed with Ultrix:
181 ;; ccom: Error: foo.c, line 2: syntax error
183 ;; /usr/lib/cmplrs/cc/cfe: Error: foo.c: 1: blah blah
184 ("rror: \\([^,\" \n\t]+\\)[,:] \\(line \\)?\\([0-9]+\\):" 1 3)
186 ;; IBM AIX PS/2 C version 1.1:
187 ;; ****** Error number 140 in line 8 of file errors.c ******
188 ("in line \\([0-9]+\\) of file \\([^ \n]+[^. \n]\\)\\.? " 2 1)
189 ;; IBM AIX lint is too painful to do right this way. File name
190 ;; prefixes entire sections rather than being on each line.
192 ;; Lucid Compiler, lcc 3.x
193 ;; E, file.cc(35,52) Illegal operation on pointers
194 ("\n[EW], \\([^(\n]*\\)(\\([0-9]+\\),[ \t]*\\([0-9]+\\)" 1 2 3)
196 ;; GNU messages with program name and optional column number.
197 ("\n[a-zA-Z]?:?[^0-9 \n\t:]+:[ \t]*\\([^ \n\t:]+\\):\
198 \\([0-9]+\\):\\(\\([0-9]+\\)[: \t]\\)?" 1 2 4)
200 ;; Cray C compiler error messages
201 ("\n\\(cc\\| cft\\)-[0-9]+ c\\(c\\|f77\\): ERROR \\([^,\n]+, \\)* File = \\([^,\n]+\\), Line = \\([0-9]+\\)" 4 5)
203 ;; IBM C/C++ Tools 2.01:
204 ;; foo.c(2:0) : informational EDC0804: Function foo is not referenced.
205 ;; foo.c(3:8) : warning EDC0833: Implicit return statement encountered.
206 ;; foo.c(5:5) : error EDC0350: Syntax error.
207 ("\n\\([^( \n\t]+\\)(\\([0-9]+\\):\\([0-9]+\\)) : " 1 2 3)
209 ;; Sun ada (VADS, Solaris):
210 ;; /home3/xdhar/rcds_rc/main.a, line 361, char 6:syntax error: "," inserted
211 ("\n\\([^, ]+\\), line \\([0-9]+\\), char \\([0-9]+\\)[:., \(-]" 1 2 3)
213 "Alist that specifies how to match errors in compiler output.
214 Each elt has the form (REGEXP FILE-IDX LINE-IDX [COLUMN-IDX FILE-FORMAT...])
215 If REGEXP matches, the FILE-IDX'th subexpression gives the file name, and
216 the LINE-IDX'th subexpression gives the line number. If COLUMN-IDX is
217 given, the COLUMN-IDX'th subexpression gives the column number on that line.
218 If any FILE-FORMAT is given, each is a format string to produce a file name to
219 try; %s in the string is replaced by the text matching the FILE-IDX'th
222 (defvar compilation-read-command t
223 "If not nil, M-x compile reads the compilation command to use.
224 Otherwise, M-x compile just uses the value of `compile-command'.")
226 (defvar compilation-ask-about-save t
227 "If not nil, M-x compile asks which buffers to save before compiling.
228 Otherwise, it saves all modified buffers without asking.")
230 (defvar grep-regexp-alist
231 '(("^\\([a-zA-Z]?:?[^:( \t\n]+\\)[:( \t]+\\([0-9]+\\)[:) \t]" 1 2))
232 "Regexp used to match grep hits. See `compilation-error-regexp-alist'.")
234 (defvar grep-command "grep -n "
235 "Last grep command used in \\[grep]; default for next grep.")
238 (defvar compilation-search-path '(nil)
239 "*List of directories to search for source files named in error messages.
240 Elements should be directory names, not file names of directories.
241 nil as an element means to try the default directory.")
243 (defvar compile-command "make -k "
244 "Last shell command used to do a compilation; default for next compilation.
246 Sometimes it is useful for files to supply local values for this variable.
247 You might also use mode hooks to specify it in certain modes, like this:
250 '(lambda () (or (file-exists-p \"makefile\") (file-exists-p \"Makefile\")
251 (progn (make-local-variable 'compile-command)
252 (setq compile-command
254 buffer-file-name))))))")
256 (defvar compilation-enter-directory-regexp
257 ": Entering directory `\\(.*\\)'$"
258 "Regular expression matching lines that indicate a new current directory.
259 This must contain one \\(, \\) pair around the directory name.
261 The default value matches lines printed by the `-w' option of GNU Make.")
263 (defvar compilation-leave-directory-regexp
264 ": Leaving directory `\\(.*\\)'$"
265 "Regular expression matching lines that indicate restoring current directory.
266 This may contain one \\(, \\) pair around the name of the directory
267 being moved from. If it does not, the last directory entered \(by a
268 line matching `compilation-enter-directory-regexp'\) is assumed.
270 The default value matches lines printed by the `-w' option of GNU Make.")
272 (defvar compilation-directory-stack nil
273 "Stack of previous directories for `compilation-leave-directory-regexp'.
274 The head element is the directory the compilation was started in.")
276 (defvar compilation-exit-message-function nil "\
277 If non-nil, called when a compilation process dies to return a status message.
278 This should be a function of three arguments: process status, exit status,
279 and exit message; it returns a cons (MESSAGE . MODELINE) of the strings to
280 write into the compilation buffer, and to put in its mode line.")
282 ;; History of compile commands.
283 (defvar compile-history nil)
284 ;; History of grep commands.
285 (defvar grep-history nil)
287 (defvar compilation-mode-font-lock-keywords
288 ;; This regexp needs a bit of rewriting. What is the third grouping for?
289 '(("^\\([a-zA-Z]?:?[^ \n:]*:\\([0-9]+:\\)+\\)\\(.*\\)$"
290 1 font-lock-function-name-face))
291 ;;; ("^\\([^\n:]*:\\([0-9]+:\\)+\\)\\(.*\\)$" 0 font-lock-keyword-face keep)
292 "Additional expressions to highlight in Compilation mode.")
295 (defun compile (command)
296 "Compile the program including the current buffer. Default: run `make'.
297 Runs COMMAND, a shell command, in a separate process asynchronously
298 with output going to the buffer `*compilation*'.
300 You can then use the command \\[next-error] to find the next error message
301 and move to the source code that caused it.
303 Interactively, prompts for the command if `compilation-read-command' is
304 non-nil; otherwise uses `compile-command'. With prefix arg, always prompts.
306 To run more than one compilation at once, start one and rename the
307 \`*compilation*' buffer to some other name with \\[rename-buffer].
308 Then start the next one.
310 The name used for the buffer is actually whatever is returned by
311 the function in `compilation-buffer-name-function', so you can set that
312 to a function that generates a unique name."
314 (if (or compilation-read-command current-prefix-arg)
315 (list (read-from-minibuffer "Compile command: "
316 compile-command nil nil
317 '(compile-history . 1)))
318 (list compile-command)))
319 (setq compile-command command)
320 (save-some-buffers (not compilation-ask-about-save) nil)
321 (compile-internal compile-command "No more errors"))
323 ;;; run compile with the default command line
325 "Re-compile the program including the current buffer."
327 (save-some-buffers (not compilation-ask-about-save) nil)
328 (compile-internal compile-command "No more errors"))
330 ;; The system null device. (Should reference NULL_DEVICE from C.)
331 (defvar grep-null-device "/dev/null" "The system null device.")
334 (defun grep (command-args)
335 "Run grep, with user-specified args, and collect output in a buffer.
336 While grep runs asynchronously, you can use the \\[next-error] command
337 to find the text that grep hits refer to.
339 This command uses a special history list for its arguments, so you can
340 easily repeat a grep command."
342 (list (read-from-minibuffer "Run grep (like this): "
343 grep-command nil nil 'grep-history)))
344 (let ((buf (compile-internal (concat command-args " " grep-null-device)
345 "No more grep hits" "grep"
346 ;; Give it a simpler regexp to match.
347 nil grep-regexp-alist)))
350 (set (make-local-variable 'compilation-exit-message-function)
351 (lambda (status code msg)
352 (if (eq status 'exit)
354 '("finished (matches found)\n" . "matched"))
356 '("finished with no matches found\n" . "no match"))
359 (cons msg code)))))))
361 (defun compile-internal (command error-message
362 &optional name-of-mode parser regexp-alist
364 "Run compilation command COMMAND (low level interface).
365 ERROR-MESSAGE is a string to print if the user asks to see another error
366 and there are no more errors. Third argument NAME-OF-MODE is the name
367 to display as the major mode in the compilation buffer.
369 Fourth arg PARSER is the error parser function (nil means the default). Fifth
370 arg REGEXP-ALIST is the error message regexp alist to use (nil means the
371 default). Sixth arg NAME-FUNCTION is a function called to name the buffer (nil
372 means the default). The defaults for these variables are the global values of
373 \`compilation-parse-errors-function', `compilation-error-regexp-alist', and
374 \`compilation-buffer-name-function', respectively.
376 Returns the compilation buffer created."
380 (setq name-of-mode "Compilation"))
383 (funcall (or name-function compilation-buffer-name-function
384 (function (lambda (mode)
385 (concat "*" (downcase mode) "*"))))
388 (let ((comp-proc (get-buffer-process (current-buffer))))
390 (if (or (not (eq (process-status comp-proc) 'run))
392 (format "A %s process is running; kill it? "
396 (interrupt-process comp-proc)
398 (delete-process comp-proc))
400 (error "Cannot have two processes in `%s' at once"
403 ;; In case the compilation buffer is current, make sure we get the global
404 ;; values of compilation-error-regexp-alist, etc.
405 (kill-all-local-variables))
406 (let ((regexp-alist (or regexp-alist compilation-error-regexp-alist))
407 (parser (or parser compilation-parse-errors-function))
408 (thisdir default-directory)
411 ;; Clear out the compilation buffer and make it writable.
412 ;; Change its default-directory to the directory where the compilation
413 ;; will happen, and insert a `cd' command to indicate this.
415 (setq buffer-read-only nil)
416 (buffer-disable-undo (current-buffer))
418 (buffer-enable-undo (current-buffer))
419 (setq default-directory thisdir)
420 (insert "cd " thisdir "\n" command "\n")
421 (set-buffer-modified-p nil))
422 ;; If we're already in the compilation buffer, go to the end
423 ;; of the buffer, so point will track the compilation output.
424 (if (eq outbuf (current-buffer))
425 (goto-char (point-max)))
426 ;; Pop up the compilation buffer.
427 (setq outwin (display-buffer outbuf))
431 ;; (setq buffer-read-only t) ;;; Non-ergonomic.
432 (set (make-local-variable 'compilation-parse-errors-function) parser)
433 (set (make-local-variable 'compilation-error-message) error-message)
434 (set (make-local-variable 'compilation-error-regexp-alist) regexp-alist)
435 (setq default-directory thisdir
436 compilation-directory-stack (list default-directory))
437 (set-window-start outwin (point-min))
438 (setq mode-name name-of-mode)
439 (or (eq outwin (selected-window))
440 (set-window-point outwin (point-min)))
441 (compilation-set-window-height outwin)
442 ;; Start the compilation.
443 (if (fboundp 'start-process)
444 (let* ((process-environment (cons "EMACS=t" process-environment))
445 (proc (start-process-shell-command (downcase mode-name)
448 (set-process-sentinel proc 'compilation-sentinel)
449 (set-process-filter proc 'compilation-filter)
450 (set-marker (process-mark proc) (point) outbuf)
451 (setq compilation-in-progress
452 (cons proc compilation-in-progress)))
453 ;; No asynchronous processes available.
454 (message "Executing `%s'..." command)
455 ;; Fake modeline display as if `start-process' were run.
456 (setq mode-line-process ":run")
457 (force-mode-line-update)
458 (sit-for 0) ; Force redisplay
459 (let ((status (call-process shell-file-name nil outbuf nil "-c"
461 (cond ((numberp status)
462 (compilation-handle-exit 'exit status
466 exited abnormally with code %d\n"
469 (compilation-handle-exit 'signal status
470 (concat status "\n")))
472 (compilation-handle-exit 'bizarre status status))))
473 (message "Executing `%s'...done" command))))
474 ;; Make it so the next C-x ` will use this buffer.
475 (setq compilation-last-buffer outbuf)))
477 ;; Set the height of WINDOW according to compilation-window-height.
478 (defun compilation-set-window-height (window)
479 (and compilation-window-height
480 (= (window-width window) (frame-width (window-frame window)))
481 ;; If window is alone in its frame, aside from a minibuffer,
482 ;; don't change its height.
483 (not (eq window (frame-root-window (window-frame window))))
484 ;; This save-excursion prevents us from changing the current buffer,
485 ;; which might not be the same as the selected window's buffer.
487 (let ((w (selected-window)))
490 (select-window window)
491 (enlarge-window (- compilation-window-height
493 (select-window w))))))
495 (defvar compilation-minor-mode-map
496 (let ((map (make-sparse-keymap)))
497 (define-key map [mouse-2] 'compile-mouse-goto-error)
498 (define-key map "\C-c\C-c" 'compile-goto-error)
499 (define-key map "\C-m" 'compile-goto-error)
500 (define-key map "\C-c\C-k" 'kill-compilation)
501 (define-key map "\M-n" 'compilation-next-error)
502 (define-key map "\M-p" 'compilation-previous-error)
503 (define-key map "\M-{" 'compilation-previous-file)
504 (define-key map "\M-}" 'compilation-next-file)
506 "Keymap for `compilation-minor-mode'.")
508 (defvar compilation-mode-map
509 (let ((map (cons 'keymap compilation-minor-mode-map)))
510 (define-key map " " 'scroll-up)
511 (define-key map "\^?" 'scroll-down)
512 ;; Set up the menu-bar
513 (define-key map [menu-bar compilation-menu]
514 (cons "Compile" (make-sparse-keymap "Compile")))
516 (define-key map [menu-bar compilation-menu compilation-mode-kill-compilation]
517 '("Stop Compilation" . kill-compilation))
518 (define-key map [menu-bar compilation-menu compilation-mode-separator2]
520 (define-key map [menu-bar compilation-menu compilation-mode-first-error]
521 '("First Error" . first-error))
522 (define-key map [menu-bar compilation-menu compilation-mode-previous-error]
523 '("Previous Error" . previous-error))
524 (define-key map [menu-bar compilation-menu compilation-mode-next-error]
525 '("Next Error" . next-error))
526 (define-key map [menu-bar compilation-menu compilation-separator2]
528 (define-key map [menu-bar compilation-menu compilation-mode-grep]
530 (define-key map [menu-bar compilation-menu compilation-mode-recompile]
531 '("Recompile" . recompile))
532 (define-key map [menu-bar compilation-menu compilation-mode-compile]
533 '("Compile" . compile))
535 "Keymap for compilation log buffers.
536 `compilation-minor-mode-map' is a cdr of this.")
539 (defun compilation-mode ()
540 "Major mode for compilation log buffers.
541 \\<compilation-mode-map>To visit the source for a line-numbered error,
542 move point to the error message line and type \\[compile-goto-error].
543 To kill the compilation, type \\[kill-compilation].
545 Runs `compilation-mode-hook' with `run-hooks' (which see)."
547 (kill-all-local-variables)
548 (use-local-map compilation-mode-map)
549 (setq major-mode 'compilation-mode
550 mode-name "Compilation")
552 (set (make-local-variable 'font-lock-defaults)
553 '(compilation-mode-font-lock-keywords t))
554 (run-hooks 'compilation-mode-hook))
556 ;; Prepare the buffer for the compilation parsing commands to work.
557 (defun compilation-setup ()
558 ;; Make the buffer's mode line show process state.
559 (setq mode-line-process '(":%s"))
560 (set (make-local-variable 'compilation-error-list) nil)
561 (set (make-local-variable 'compilation-old-error-list) nil)
562 (set (make-local-variable 'compilation-parsing-end) 1)
563 (set (make-local-variable 'compilation-directory-stack) nil)
564 (setq compilation-last-buffer (current-buffer)))
566 (defvar compilation-minor-mode nil
567 "Non-nil when in compilation-minor-mode.
568 In this minor mode, all the error-parsing commands of the
569 Compilation major mode are available.")
570 (make-variable-buffer-local 'compilation-minor-mode)
572 (or (assq 'compilation-minor-mode minor-mode-alist)
573 (setq minor-mode-alist (cons '(compilation-minor-mode " Compilation")
575 (or (assq 'compilation-minor-mode minor-mode-map-alist)
576 (setq minor-mode-map-alist (cons (cons 'compilation-minor-mode
577 compilation-minor-mode-map)
578 minor-mode-map-alist)))
581 (defun compilation-minor-mode (&optional arg)
582 "Toggle compilation minor mode.
583 With arg, turn compilation mode on if and only if arg is positive.
584 See `compilation-mode'.
585 Turning the mode on runs the normal hook `compilation-minor-mode-hook'."
587 (if (setq compilation-minor-mode (if (null arg)
588 (null compilation-minor-mode)
589 (> (prefix-numeric-value arg) 0)))
592 (run-hooks 'compilation-minor-mode-hook))))
594 ;; Write msg in the current buffer and hack its mode-line-process.
595 (defun compilation-handle-exit (process-status exit-status msg)
596 (let ((buffer-read-only nil)
597 (status (if compilation-exit-message-function
598 (funcall compilation-exit-message-function
599 process-status exit-status msg)
600 (cons msg exit-status)))
603 ;; Record where we put the message, so we can ignore it
606 (insert ?\n mode-name " " (car status))
608 (insert " at " (substring (current-time-string) 0 19))
610 (setq mode-line-process (format ":%s [%s]" process-status (cdr status)))
611 ;; Force mode line redisplay soon.
612 (force-mode-line-update)
613 (if (and opoint (< opoint omax))
615 (if compilation-finish-function
616 (funcall compilation-finish-function (current-buffer) msg))))
618 ;; Called when compilation process changes state.
619 (defun compilation-sentinel (proc msg)
620 "Sentinel for compilation buffers."
621 (let ((buffer (process-buffer proc)))
622 (if (memq (process-status proc) '(signal exit))
624 (if (null (buffer-name buffer))
626 (set-process-buffer proc nil)
627 (let ((obuf (current-buffer)))
628 ;; save-excursion isn't the right thing if
629 ;; process-buffer is current-buffer
632 ;; Write something in the compilation buffer
633 ;; and hack its mode line.
635 (compilation-handle-exit (process-status proc)
636 (process-exit-status proc)
638 ;; Since the buffer and mode line will show that the
639 ;; process is dead, we can delete it now. Otherwise it
640 ;; will stay around until M-x list-processes.
641 (delete-process proc))
643 (setq compilation-in-progress (delq proc compilation-in-progress))
646 (defun compilation-filter (proc string)
647 "Process filter for compilation buffers.
648 Just inserts the text, but uses `insert-before-markers'."
649 (if (buffer-name (process-buffer proc))
651 (set-buffer (process-buffer proc))
652 (let ((buffer-read-only nil))
654 (goto-char (process-mark proc))
655 (insert-before-markers string)
656 (run-hooks 'compilation-filter-hook)
657 (set-marker (process-mark proc) (point)))))))
659 ;; Return the cdr of compilation-old-error-list for the error containing point.
660 (defun compile-error-at-point ()
661 (compile-reinitialize-errors nil (point))
662 (let ((errors compilation-old-error-list))
664 (> (point) (car (car errors))))
665 (setq errors (cdr errors)))
668 (defsubst compilation-buffer-p (buffer)
671 (or compilation-minor-mode (eq major-mode 'compilation-mode))))
673 (defun compilation-next-error (n)
674 "Move point to the next error in the compilation buffer.
675 Does NOT find the source line like \\[next-error]."
677 (or (compilation-buffer-p (current-buffer))
678 (error "Not in a compilation buffer."))
679 (setq compilation-last-buffer (current-buffer))
681 (let ((errors (compile-error-at-point)))
683 ;; Move to the error after the one containing point.
684 (goto-char (car (if (< n 0)
686 (e compilation-old-error-list))
687 ;; See how many cdrs away ERRORS is from the start.
688 (while (not (eq e errors))
692 (error "Moved back past first error")
693 (nth (+ i n) compilation-old-error-list)))
694 (let ((compilation-error-list (cdr errors)))
695 (compile-reinitialize-errors nil nil n)
696 (if compilation-error-list
697 (nth (1- n) compilation-error-list)
698 (error "Moved past last error"))))))))
700 (defun compilation-previous-error (n)
701 "Move point to the previous error in the compilation buffer.
702 Does NOT find the source line like \\[next-error]."
704 (compilation-next-error (- n)))
707 ;; Given an elt of `compilation-error-list', return an object representing
708 ;; the referenced file which is equal to (but not necessarily eq to) what
709 ;; this function would return for another error in the same file.
710 (defsubst compilation-error-filedata (data)
711 (setq data (cdr data))
716 ;; Return a string describing a value from compilation-error-filedata.
717 ;; This value is not necessarily useful as a file name, but should be
718 ;; indicative to the user of what file's errors are being referred to.
719 (defsubst compilation-error-filedata-file-name (filedata)
720 (if (bufferp filedata)
721 (buffer-file-name filedata)
724 (defun compilation-next-file (n)
725 "Move point to the next error for a different file than the current one."
727 (or (compilation-buffer-p (current-buffer))
728 (error "Not in a compilation buffer."))
729 (setq compilation-last-buffer (current-buffer))
731 (let ((reversed (< n 0))
735 (setq errors (or (compile-error-at-point)
736 (error "Moved past last error")))
738 ;; Get a reversed list of the errors up through the one containing point.
739 (compile-reinitialize-errors nil (point))
740 (setq errors (reverse compilation-old-error-list)
743 ;; Ignore errors after point. (car ERRORS) will be the error
744 ;; containing point, (cadr ERRORS) the one before it.
746 (< (point) (car (car errors))))
747 (setq errors (cdr errors))))
750 (setq filedata (compilation-error-filedata (car errors)))
752 ;; Skip past the following errors for this file.
753 (while (equal filedata
754 (compilation-error-filedata
757 (error "%s the first erring file"
758 (compilation-error-filedata-file-name
760 (let ((compilation-error-list nil))
762 (compile-reinitialize-errors nil nil 2)
763 (setq errors compilation-error-list)))
764 (error "%s is the last erring file"
765 (compilation-error-filedata-file-name
767 (setq errors (cdr errors)))
771 ;; Move to the following error.
772 (goto-char (car (car (or errors
774 (error "This is the first erring file")
775 (let ((compilation-error-list nil))
776 ;; Parse the last one.
777 (compile-reinitialize-errors nil nil 1)
778 compilation-error-list))))))))
780 (defun compilation-previous-file (n)
781 "Move point to the previous error for a different file than the current one."
783 (compilation-next-file (- n)))
786 (defun kill-compilation ()
787 "Kill the process made by the \\[compile] command."
789 (let ((buffer (compilation-find-buffer)))
790 (if (get-buffer-process buffer)
791 (interrupt-process (get-buffer-process buffer))
792 (error "The compilation process is not running."))))
795 ;; Parse any new errors in the compilation buffer,
796 ;; or reparse from the beginning if the user has asked for that.
797 (defun compile-reinitialize-errors (reparse
798 &optional limit-search find-at-least)
800 (set-buffer compilation-last-buffer)
801 ;; If we are out of errors, or if user says "reparse",
802 ;; discard the info we have, to force reparsing.
803 (if (or (eq compilation-error-list t)
805 (compilation-forget-errors))
806 (if (and compilation-error-list
807 (or (not limit-search)
808 (> compilation-parsing-end limit-search))
809 (or (not find-at-least)
810 (>= (length compilation-error-list) find-at-least)))
811 ;; Since compilation-error-list is non-nil, it points to a specific
812 ;; error the user wanted. So don't move it around.
814 ;; This was here for a long time (before my rewrite); why? --roland
815 ;;(switch-to-buffer compilation-last-buffer)
816 (set-buffer-modified-p nil)
817 (if (< compilation-parsing-end (point-max))
818 ;; compilation-error-list might be non-nil if we have a non-nil
819 ;; LIMIT-SEARCH or FIND-AT-LEAST arg. In that case its value
820 ;; records the current position in the error list, and we must
821 ;; preserve that after reparsing.
822 (let ((error-list-pos compilation-error-list))
823 (funcall compilation-parse-errors-function
826 ;; We only need enough new parsed errors to reach
827 ;; FIND-AT-LEAST errors past the current
829 (- find-at-least (length compilation-error-list))))
830 ;; Remember the entire list for compilation-forget-errors. If
831 ;; this is an incremental parse, append to previous list. If
832 ;; we are parsing anew, compilation-forget-errors cleared
833 ;; compilation-old-error-list above.
834 (setq compilation-old-error-list
835 (nconc compilation-old-error-list compilation-error-list))
837 ;; We started in the middle of an existing list of parsed
838 ;; errors before parsing more; restore that position.
839 (setq compilation-error-list error-list-pos))
842 (defun compile-mouse-goto-error (event)
845 (set-buffer (window-buffer (posn-window (event-end event))))
846 (goto-char (posn-point (event-end event)))
848 (or (compilation-buffer-p (current-buffer))
849 (error "Not in a compilation buffer."))
850 (setq compilation-last-buffer (current-buffer))
851 (compile-reinitialize-errors nil (point))
853 ;; Move to bol; the marker for the error on this line will point there.
856 ;; Move compilation-error-list to the elt of compilation-old-error-list
858 (setq compilation-error-list compilation-old-error-list)
859 (while (and compilation-error-list
860 (> (point) (car (car compilation-error-list))))
861 (setq compilation-error-list (cdr compilation-error-list)))
862 (or compilation-error-list
863 (error "No error to go to")))
864 (select-window (posn-window (event-end event)))
865 ;; Move to another window, so that next-error's window changes
866 ;; result in the desired setup.
870 ;; other-window changed the selected buffer,
871 ;; but we didn't want to do that.
872 (set-buffer compilation-last-buffer)))
877 (defun compile-goto-error (&optional argp)
878 "Visit the source for the error message point is on.
879 Use this command in a compilation log buffer. Sets the mark at point there.
880 \\[universal-argument] as a prefix arg means to reparse the buffer's error messages first;
881 other kinds of prefix arguments are ignored."
883 (or (compilation-buffer-p (current-buffer))
884 (error "Not in a compilation buffer."))
885 (setq compilation-last-buffer (current-buffer))
886 (compile-reinitialize-errors (consp argp) (point))
888 ;; Move to bol; the marker for the error on this line will point there.
891 ;; Move compilation-error-list to the elt of compilation-old-error-list
893 (setq compilation-error-list compilation-old-error-list)
894 (while (and compilation-error-list
895 (> (point) (car (car compilation-error-list))))
896 (setq compilation-error-list (cdr compilation-error-list)))
898 ;; Move to another window, so that next-error's window changes
899 ;; result in the desired setup.
903 ;; other-window changed the selected buffer,
904 ;; but we didn't want to do that.
905 (set-buffer compilation-last-buffer)))
910 ;; Return a compilation buffer.
911 ;; If the current buffer is a compilation buffer, return it.
912 ;; If compilation-last-buffer is set to a live buffer, use that.
913 ;; Otherwise, look for a compilation buffer and signal an error
914 ;; if there are none.
915 (defun compilation-find-buffer (&optional other-buffer)
916 (if (and (not other-buffer)
917 (compilation-buffer-p (current-buffer)))
918 ;; The current buffer is a compilation buffer.
920 (if (and compilation-last-buffer (buffer-name compilation-last-buffer)
921 (compilation-buffer-p compilation-last-buffer)
922 (or (not other-buffer) (not (eq compilation-last-buffer
924 compilation-last-buffer
925 (let ((buffers (buffer-list)))
926 (while (and buffers (or (not (compilation-buffer-p (car buffers)))
928 (eq (car buffers) (current-buffer)))))
929 (setq buffers (cdr buffers)))
932 (or (and other-buffer
933 (compilation-buffer-p (current-buffer))
934 ;; The current buffer is a compilation buffer.
937 (message "This is the only compilation buffer."))
939 (error "No compilation started!")))))))
942 (defun next-error (&optional argp)
943 "Visit next compilation error message and corresponding source code.
944 This operates on the output from the \\[compile] command.
945 If all preparsed error messages have been processed,
946 the error message buffer is checked for new ones.
948 A prefix arg specifies how many error messages to move;
949 negative means move back to previous error messages.
950 Just C-u as a prefix means reparse the error message buffer
951 and start at the first error.
953 \\[next-error] normally applies to the most recent compilation started,
954 but as long as you are in the middle of parsing errors from one compilation
955 output buffer, you stay with that compilation output buffer.
957 Use \\[next-error] in a compilation output buffer to switch to
958 processing errors from that compilation.
960 See variables `compilation-parse-errors-function' and
961 \`compilation-error-regexp-alist' for customization ideas."
963 (setq compilation-last-buffer (compilation-find-buffer))
964 (compilation-goto-locus (compilation-next-error-locus
965 ;; We want to pass a number here only if
966 ;; we got a numeric prefix arg, not just C-u.
967 (and (not (consp argp))
968 (prefix-numeric-value argp))
970 ;;;###autoload (define-key ctl-x-map "`" 'next-error)
972 (defun previous-error ()
973 "Visit previous compilation error message and corresponding source code.
974 This operates on the output from the \\[compile] command."
978 (defun first-error ()
979 "Reparse the error message buffer and start at the first error
980 Visit corresponding source code.
981 This operates on the output from the \\[compile] command."
985 (defun compilation-next-error-locus (&optional move reparse silent)
986 "Visit next compilation error and return locus in corresponding source code.
987 This operates on the output from the \\[compile] command.
988 If all preparsed error messages have been processed,
989 the error message buffer is checked for new ones.
991 Returns a cons (ERROR . SOURCE) of two markers: ERROR is a marker at the
992 location of the error message in the compilation buffer, and SOURCE is a
993 marker at the location in the source code indicated by the error message.
995 Optional first arg MOVE says how many error messages to move forwards (or
996 backwards, if negative); default is 1. Optional second arg REPARSE, if
997 non-nil, says to reparse the error message buffer and reset to the first
998 error (plus MOVE - 1). If optional third argument SILENT is non-nil, return
999 nil instead of raising an error if there are no more errors.
1001 The current buffer should be the desired compilation output buffer."
1002 (or move (setq move 1))
1003 (compile-reinitialize-errors reparse nil (and (not reparse)
1004 (if (< move 1) 0 (1- move))))
1005 (let (next-errors next-error)
1006 (catch 'no-next-error
1008 (set-buffer compilation-last-buffer)
1009 ;; compilation-error-list points to the "current" error.
1013 compilation-error-list)
1014 ;; Zero or negative arg; we need to move back in the list.
1017 (e compilation-old-error-list))
1018 ;; See how many cdrs away the current error is from the start.
1019 (while (not (eq e compilation-error-list))
1023 (error "Moved back past first error")
1024 (nthcdr (+ i n) compilation-old-error-list))))
1025 next-error (car next-errors))
1027 (if (null next-error)
1029 (and move (/= move 1)
1030 (error (if (> move 0)
1031 "Moved past last error")
1032 "Moved back past first error"))
1033 ;; Forget existing error messages if compilation has finished.
1034 (if (not (and (get-buffer-process (current-buffer))
1039 (compilation-forget-errors))
1041 (throw 'no-next-error nil)
1042 (error (concat compilation-error-message
1043 (and (get-buffer-process (current-buffer))
1049 (setq compilation-error-list (cdr next-errors))
1050 (if (null (cdr next-error))
1051 ;; This error is boring. Go to the next.
1053 (or (markerp (cdr next-error))
1054 ;; This error has a filename/lineno pair.
1055 ;; Find the file and turn it into a marker.
1056 (let* ((fileinfo (car (cdr next-error)))
1057 (buffer (apply 'compilation-find-file
1058 (car next-error) fileinfo)))
1060 ;; We can't find this error's file.
1061 ;; Remove all errors in the same file.
1063 (setq next-errors compilation-old-error-list)
1065 (and (consp (cdr (car next-errors)))
1066 (equal (car (cdr (car next-errors)))
1069 (set-marker (car (car next-errors)) nil)
1070 (setcdr (car next-errors) nil)))
1071 (setq next-errors (cdr next-errors)))
1072 ;; Look for the next error.
1074 ;; We found the file. Get a marker for this error.
1075 ;; compilation-old-error-list is a buffer-local
1076 ;; variable, so we must be careful to extract its value
1077 ;; before switching to the source file buffer.
1078 (let ((errors compilation-old-error-list)
1079 (last-line (nth 1 (cdr next-error)))
1080 (column (nth 2 (cdr next-error))))
1085 (goto-line last-line)
1086 (if (and column (> column 0))
1087 ;; Columns in error msgs are 1-origin.
1088 (move-to-column (1- column))
1089 (beginning-of-line))
1090 (setcdr next-error (point-marker))
1091 ;; Make all the other error messages referring
1092 ;; to the same file have markers into the buffer.
1094 (and (consp (cdr (car errors)))
1095 (equal (car (cdr (car errors))) fileinfo)
1096 (let* ((this (nth 1 (cdr (car errors))))
1097 (column (nth 2 (cdr (car errors))))
1098 (lines (- this last-line)))
1099 (if (eq selective-display t)
1100 ;; When selective-display is t,
1101 ;; each C-m is a line boundary,
1102 ;; as well as each newline.
1104 (re-search-backward "[\n\C-m]"
1107 (re-search-forward "[\n\C-m]"
1110 (forward-line lines))
1111 (if (and column (> column 1))
1112 (move-to-column (1- column))
1113 (beginning-of-line))
1114 (setq last-line this)
1115 (setcdr (car errors) (point-marker))))
1116 (setq errors (cdr errors)))))))))
1117 ;; If we didn't get a marker for this error, or this
1118 ;; marker's buffer was killed, go on to the next one.
1119 (or (not (markerp (cdr next-error)))
1120 (not (marker-buffer (cdr next-error))))))
1121 (setq next-errors compilation-error-list
1122 next-error (car next-errors)))))
1124 ;; Skip over multiple error messages for the same source location,
1125 ;; so the next C-x ` won't go to an error in the same place.
1126 (while (and compilation-error-list
1127 (equal (cdr (car compilation-error-list)) (cdr next-error)))
1128 (setq compilation-error-list (cdr compilation-error-list)))
1130 ;; We now have a marker for the position of the error source code.
1131 ;; NEXT-ERROR is a cons (ERROR . SOURCE) of two markers.
1134 (defun compilation-goto-locus (next-error)
1135 "Jump to an error locus returned by `compilation-next-error-locus'.
1136 Takes one argument, a cons (ERROR . SOURCE) of two markers.
1137 Selects a window with point at SOURCE, with another window displaying ERROR."
1138 (if (and (window-dedicated-p (selected-window))
1139 (eq (selected-window) (frame-root-window)))
1140 (switch-to-buffer-other-frame (marker-buffer (cdr next-error)))
1141 (switch-to-buffer (marker-buffer (cdr next-error))))
1142 (goto-char (cdr next-error))
1143 ;; If narrowing got in the way of
1144 ;; going to the right place, widen.
1145 (or (= (point) (marker-position (cdr next-error)))
1148 (goto-char (cdr next-error))))
1150 ;; Show compilation buffer in other window, scrolled to this error.
1151 (let* ((pop-up-windows t)
1152 ;; Use an existing window if it is in a visible frame.
1153 (w (or (get-buffer-window (marker-buffer (car next-error)) 'visible)
1155 (display-buffer (marker-buffer (car next-error))))))
1156 (set-window-point w (car next-error))
1157 (set-window-start w (car next-error))
1158 (compilation-set-window-height w)))
1160 ;; Find a buffer for file FILENAME.
1161 ;; Search the directories in compilation-search-path.
1162 ;; A nil in compilation-search-path means to try the
1163 ;; current directory, which is passed in DIR.
1164 ;; If FILENAME is not found at all, ask the user where to find it.
1165 ;; Pop up the buffer containing MARKER and scroll to MARKER if we ask the user.
1166 (defun compilation-find-file (marker filename dir &rest formats)
1167 (or formats (setq formats '("%s")))
1168 (let ((dirs compilation-search-path)
1169 buffer thisdir fmts name)
1170 (if (file-name-absolute-p filename)
1171 ;; The file name is absolute. Use its explicit directory as
1172 ;; the first in the search path, and strip it from FILENAME.
1173 (setq filename (abbreviate-file-name (expand-file-name filename))
1174 dirs (cons (file-name-directory filename) dirs)
1175 filename (file-name-nondirectory filename)))
1176 ;; Now search the path.
1177 (while (and dirs (null buffer))
1178 (setq thisdir (or (car dirs) dir)
1180 ;; For each directory, try each format string.
1181 (while (and fmts (null buffer))
1182 (setq name (expand-file-name (format (car fmts) filename) thisdir)
1183 buffer (and (file-exists-p name)
1184 (find-file-noselect name))
1186 (setq dirs (cdr dirs)))
1188 ;; The file doesn't exist.
1189 ;; Ask the user where to find it.
1190 ;; If he hits C-g, then the next time he does
1191 ;; next-error, he'll skip past it.
1192 (let* ((pop-up-windows t)
1193 (w (display-buffer (marker-buffer marker))))
1194 (set-window-point w marker)
1195 (set-window-start w marker)
1196 (let ((name (expand-file-name
1198 (format "Find this error in: (default %s) "
1201 (if (file-directory-p name)
1202 (setq name (expand-file-name filename name)))
1203 (and (file-exists-p name)
1204 (find-file-noselect name)))))))
1206 ;; Set compilation-error-list to nil, and unchain the markers that point to the
1207 ;; error messages and their text, so that they no longer slow down gap motion.
1208 ;; This would happen anyway at the next garbage collection, but it is better to
1209 ;; do it right away.
1210 (defun compilation-forget-errors ()
1211 (while compilation-old-error-list
1212 (let ((next-error (car compilation-old-error-list)))
1213 (set-marker (car next-error) nil)
1214 (if (markerp (cdr next-error))
1215 (set-marker (cdr next-error) nil)))
1216 (setq compilation-old-error-list (cdr compilation-old-error-list)))
1217 (setq compilation-error-list nil
1218 compilation-directory-stack nil
1219 compilation-parsing-end 1))
1222 (defun count-regexp-groupings (regexp)
1223 "Return the number of \\( ... \\) groupings in REGEXP (a string)."
1225 (len (length regexp))
1229 (setq c (aref regexp i)
1232 ;; Find the end of this [...].
1233 (while (and (< i len)
1234 (not (= (aref regexp i) ?\])))
1239 (setq c (aref regexp i)
1242 ;; We found the end of a grouping,
1243 ;; so bump our counter.
1244 (setq groupings (1+ groupings))))))))
1247 (defun compilation-parse-errors (limit-search find-at-least)
1248 "Parse the current buffer as grep, cc or lint error messages.
1249 See variable `compilation-parse-errors-function' for the interface it uses."
1250 (setq compilation-error-list nil)
1251 (message "Parsing error messages...")
1252 (let (text-buffer orig orig-expanded parent-expanded
1253 regexp enter-group leave-group error-group
1254 alist subexpr error-regexp-groups
1256 (compilation-num-errors-found 0))
1258 ;; Don't reparse messages already seen at last parse.
1259 (goto-char compilation-parsing-end)
1260 ;; Don't parse the first two lines as error messages.
1261 ;; This matters for grep.
1265 ;; Move back so point is before the newline.
1266 ;; This matters because some error regexps use \n instead of ^
1270 ;; Compile all the regexps we want to search for into one.
1271 (setq regexp (concat "\\(" compilation-enter-directory-regexp "\\)\\|"
1272 "\\(" compilation-leave-directory-regexp "\\)\\|"
1273 "\\(" (mapconcat (function
1275 (concat "\\(" (car elt) "\\)")))
1276 compilation-error-regexp-alist
1279 ;; Find out how many \(...\) groupings are in each of the regexps, and set
1280 ;; *-GROUP to the grouping containing each constituent regexp (whose
1281 ;; subgroups will come immediately thereafter) of the big regexp we have
1282 ;; just constructed.
1284 leave-group (+ enter-group
1285 (count-regexp-groupings
1286 compilation-enter-directory-regexp)
1288 error-group (+ leave-group
1289 (count-regexp-groupings
1290 compilation-leave-directory-regexp)
1293 ;; Compile an alist (IDX FILE LINE [COL]), where IDX is the number of
1294 ;; the subexpression for an entire error-regexp, and FILE and LINE (and
1295 ;; possibly COL) are the numbers for the subexpressions giving the file
1296 ;; name and line number (and possibly column number).
1297 (setq alist (or compilation-error-regexp-alist
1298 (error "compilation-error-regexp-alist is empty!"))
1299 subexpr (1+ error-group))
1301 (setq error-regexp-groups
1303 (+ subexpr (nth 1 (car alist)))
1304 (+ subexpr (nth 2 (car alist)))
1305 (and (nth 3 (car alist))
1306 (+ subexpr (nth 3 (car alist)))))
1307 error-regexp-groups))
1308 (setq subexpr (+ subexpr 1 (count-regexp-groupings (car (car alist)))))
1309 (setq alist (cdr alist)))
1311 ;; Set up now the expanded, abbreviated directory variables
1312 ;; that compile-abbreviate-directory will need, so we can
1313 ;; compute them just once here.
1314 (setq orig (abbreviate-file-name default-directory)
1315 orig-expanded (abbreviate-file-name
1316 (file-truename default-directory))
1317 parent-expanded (abbreviate-file-name
1318 (expand-file-name "../" orig-expanded)))
1320 (while (and (not found-desired)
1321 ;; We don't just pass LIMIT-SEARCH to re-search-forward
1322 ;; because we want to find matches containing LIMIT-SEARCH
1323 ;; but which extend past it.
1324 (re-search-forward regexp nil t))
1326 ;; Figure out which constituent regexp matched.
1327 (cond ((match-beginning enter-group)
1328 ;; The match was the enter-directory regexp.
1330 (file-name-as-directory
1332 (buffer-substring (match-beginning (+ enter-group 1))
1333 (match-end (+ enter-group 1)))))))
1334 ;; The directory name in the "entering" message
1335 ;; is a truename. Try to convert it to a form
1336 ;; like what the user typed in.
1338 (compile-abbreviate-directory dir orig orig-expanded
1340 (setq compilation-directory-stack
1341 (cons dir compilation-directory-stack))
1342 (and (file-directory-p dir)
1343 (setq default-directory dir)))
1345 (and limit-search (>= (point) limit-search)
1346 ;; The user wanted a specific error, and we're past it.
1347 ;; We do this check here (and in the leave-group case)
1348 ;; rather than at the end of the loop because if the last
1349 ;; thing seen is an error message, we must carefully
1350 ;; discard the last error when it is the first in a new
1351 ;; file (see below in the error-group case).
1352 (setq found-desired t)))
1354 ((match-beginning leave-group)
1355 ;; The match was the leave-directory regexp.
1356 (let ((beg (match-beginning (+ leave-group 1)))
1357 (stack compilation-directory-stack))
1360 (file-name-as-directory
1362 (buffer-substring beg
1363 (match-end (+ leave-group
1365 ;; The directory name in the "leaving" message
1366 ;; is a truename. Try to convert it to a form
1367 ;; like what the user typed in.
1369 (compile-abbreviate-directory dir orig orig-expanded
1372 (not (string-equal (car stack) dir)))
1373 (setq stack (cdr stack)))))
1374 (setq compilation-directory-stack (cdr stack))
1375 (setq stack (car compilation-directory-stack))
1377 (setq default-directory stack))
1380 (and limit-search (>= (point) limit-search)
1381 ;; The user wanted a specific error, and we're past it.
1382 ;; We do this check here (and in the enter-group case)
1383 ;; rather than at the end of the loop because if the last
1384 ;; thing seen is an error message, we must carefully
1385 ;; discard the last error when it is the first in a new
1386 ;; file (see below in the error-group case).
1387 (setq found-desired t)))
1389 ((match-beginning error-group)
1390 ;; The match was the composite error regexp.
1391 ;; Find out which individual regexp matched.
1392 (setq alist error-regexp-groups)
1394 (null (match-beginning (car (car alist)))))
1395 (setq alist (cdr alist)))
1397 (setq alist (car alist))
1398 (error "compilation-parse-errors: impossible regexp match!"))
1400 ;; Extract the file name and line number from the error message.
1401 (let ((beginning-of-match (match-beginning 0)) ;looking-at nukes
1402 (filename (buffer-substring (match-beginning (nth 1 alist))
1403 (match-end (nth 1 alist))))
1404 (linenum (string-to-int
1406 (match-beginning (nth 2 alist))
1407 (match-end (nth 2 alist)))))
1408 (column (and (nth 3 alist)
1409 (match-beginning (nth 3 alist))
1412 (match-beginning (nth 3 alist))
1413 (match-end (nth 3 alist)))))))
1415 ;; Check for a comint-file-name-prefix and prepend it if
1416 ;; appropriate. (This is very useful for
1417 ;; compilation-minor-mode in an rlogin-mode buffer.)
1418 (and (boundp 'comint-file-name-prefix)
1419 ;; If the file name is relative, default-directory will
1420 ;; already contain the comint-file-name-prefix (done by
1421 ;; compile-abbreviate-directory).
1422 (file-name-absolute-p filename)
1423 (setq filename (concat comint-file-name-prefix filename)))
1425 ;; Some compilers (e.g. Sun's java compiler, reportedly)
1426 ;; produce bogus file names like "./bar//foo.c" for the file
1427 ;; "bar/foo.c"; expand-file-name will collapse these into
1428 ;; "/foo.c" and fail to find the appropriate file. So we look
1429 ;; for doubled slashes in the file name and fix them up in the
1431 (setq filename (command-line-normalize-file-name filename))
1432 (setq filename (cons filename (cons default-directory
1436 ;; Locate the erring file and line.
1437 ;; Cons a new elt onto compilation-error-list,
1438 ;; giving a marker for the current compilation buffer
1439 ;; location, and the file and line number of the error.
1441 ;; Save as the start of the error the beginning of the
1442 ;; line containing the match unless the match starts at a
1443 ;; newline, in which case the beginning of the next line.
1444 (goto-char beginning-of-match)
1445 (forward-line (if (eolp) 1 0))
1446 (let ((this (cons (point-marker)
1447 (list filename linenum column))))
1448 ;; Don't add the same source line more than once.
1449 (if (equal (cdr this) (cdr (car compilation-error-list)))
1451 (setq compilation-error-list
1453 compilation-error-list))
1454 (setq compilation-num-errors-found
1455 (1+ compilation-num-errors-found)))))
1456 (and (or (and find-at-least (> compilation-num-errors-found
1458 (and limit-search (>= (point) limit-search)))
1459 ;; We have found as many new errors as the user wants,
1460 ;; or past the buffer position he indicated. We
1461 ;; continue to parse until we have seen all the
1462 ;; consecutive errors in the same file, so the error
1463 ;; positions will be recorded as markers in this buffer
1464 ;; that might change.
1465 (cdr compilation-error-list) ; Must check at least two.
1466 (not (equal (car (cdr (nth 0 compilation-error-list)))
1467 (car (cdr (nth 1 compilation-error-list)))))
1469 ;; Discard the error just parsed, so that the next
1470 ;; parsing run can get it and the following errors in
1471 ;; the same file all at once. If we didn't do this, we
1472 ;; would have the same problem we are trying to avoid
1473 ;; with the test above, just delayed until the next run!
1474 (setq compilation-error-list
1475 (cdr compilation-error-list))
1476 (goto-char beginning-of-match)
1477 (setq found-desired t)))
1481 (error "compilation-parse-errors: known groups didn't match!")))
1483 (message "Parsing error messages...%d (%.0f%% of buffer)"
1484 compilation-num-errors-found
1485 ;; Use floating-point because (* 100 (point)) frequently
1486 ;; exceeds the range of Emacs Lisp integers.
1487 (/ (* 100.0 (point)) (point-max)))
1489 (and limit-search (>= (point) limit-search)
1490 ;; The user wanted a specific error, and we're past it.
1491 (setq found-desired t)))
1492 (setq compilation-parsing-end (if found-desired
1494 ;; We have searched the whole buffer.
1496 (setq compilation-error-list (nreverse compilation-error-list))
1497 (message "Parsing error messages...done"))
1499 ;; If directory DIR is a subdir of ORIG or of ORIG's parent,
1500 ;; return a relative name for it starting from ORIG or its parent.
1501 ;; ORIG-EXPANDED is an expanded version of ORIG.
1502 ;; PARENT-EXPANDED is an expanded version of ORIG's parent.
1503 ;; Those two args could be computed here, but we run faster by
1504 ;; having the caller compute them just once.
1505 (defun compile-abbreviate-directory (dir orig orig-expanded parent-expanded)
1506 ;; Apply canonical abbreviations to DIR first thing.
1507 ;; Those abbreviations are already done in the other arguments passed.
1508 (setq dir (abbreviate-file-name dir))
1510 ;; Check for a comint-file-name-prefix and prepend it if appropriate.
1511 ;; (This is very useful for compilation-minor-mode in an rlogin-mode
1513 (if (boundp 'comint-file-name-prefix)
1514 (setq dir (concat comint-file-name-prefix dir)))
1516 (if (and (> (length dir) (length orig-expanded))
1517 (string= orig-expanded
1518 (substring dir 0 (length orig-expanded))))
1521 (substring dir (length orig-expanded)))))
1522 (if (and (> (length dir) (length parent-expanded))
1523 (string= parent-expanded
1524 (substring dir 0 (length parent-expanded))))
1526 (concat (file-name-directory
1527 (directory-file-name orig))
1528 (substring dir (length parent-expanded)))))
1533 ;;; compile.el ends here