| blob | 9fffeaaabe2c575be440d11a1c0a20791023f76b |
1 ;;; compile.el --- run compiler as inferior of Emacs, parse error messages
3 ;; Copyright (C) 1985-1987, 1993-1999, 2001-2013 Free Software
4 ;; Foundation, Inc.
6 ;; Authors: Roland McGrath <roland@gnu.org>,
7 ;; Daniel Pfeiffer <occitan@esperanto.org>
8 ;; Maintainer: FSF
9 ;; Keywords: tools, processes
11 ;; This file is part of GNU Emacs.
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
15 ;; the Free Software Foundation, either version 3 of the License, or
16 ;; (at your option) any later version.
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.
23 ;; You should have received a copy of the GNU General Public License
24 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
26 ;;; Commentary:
28 ;; This package provides the compile facilities documented in the Emacs user's
29 ;; manual.
31 ;;; Code:
38 "Run compiler as inferior of Emacs, parse error messages."
43 ;;;###autoload
45 "List of hook functions run by `compilation-mode' (see `run-mode-hooks')."
49 ;;;###autoload
51 "List of hook functions run by `compilation-start' on the compilation process.
52 \(See `run-hook-with-args').
54 the compilation to be killed, you can use this hook:
55 (add-hook 'compilation-start-hook
56 (lambda (process) (set-process-query-on-exit-flag process nil)) nil t)"
60 ;;;###autoload
62 "Number of lines in a compilation window. If nil, use Emacs default."
64 integer)
68 "Hook run after `compilation-filter' has inserted a string into the buffer.
69 It is called with the variable `compilation-filter-start' bound
70 to the position of the start of the inserted text, and point at
71 its end.
73 If Emacs lacks asynchronous process support, this hook is run
77 "Position of the start of the text inserted by `compilation-filter'.
81 "This is how compilers number the first column, usually 1 or 0.
82 If this is buffer-local in the destination buffer, Emacs obeys
83 that value, otherwise it uses the value in the *compilation*
87 "Function to call to post-process filenames while parsing error messages.
88 It takes one arg FILENAME which is the name of a file as found
91 ;;;###autoload
93 "Function to call to customize the compilation process.
94 This function is called immediately before the compilation process is
95 started. It can be used to set any variables or functions that are used
98 ;;;###autoload
100 "Function to compute the name of a compilation buffer.
101 The function receives one argument, the name of the major mode of the
102 compilation buffer. It should return a string.
105 ;;;###autoload
107 "Function to call when a compilation process finishes.
108 It is called with two arguments: the compilation buffer, and a string
112 "use `compilation-finish-functions', but it works a little differently."
115 ;;;###autoload
117 "Functions to call when a compilation process finishes.
118 Each function is called with two arguments: the compilation buffer,
125 minor-mode-alist)))
135 ;; If you make any changes to `compilation-error-regexp-alist-alist',
136 ;; be sure to run the ERT test in test/automated/compile-tests.el.
150 "^[ \t]*\\[[^] \n]+\\][ \t]*\\([^: \n]+\\):\\([0-9]+\\):\\(?:\\([0-9]+\\):\\([0-9]+\\):\\([0-9]+\\):\\)?\
175 ;; Must be before edg-1, so that MSVC's longer messages are
176 ;; considered before EDG.
177 ;; The message may be a "warning", "error", or "fatal error" with
178 ;; an error code, or "see declaration of" without an error code.
194 "\\(^Warning .*\\)? line[ \n]\\([0-9]+\\)[ \n]\\(?:col \\([0-9]+\\)[ \n]\\)?file \\([^ :;\n]+\\)"
205 ;; fixme: should be `mips'
207 "^[-[:alnum:]_/ ]+: \\(?:\\(?:[sS]evere\\|[eE]rror\\|[wW]arnin\\(g\\)\\|[iI]nf\\(o\\)\\)[0-9 ]*: \\)?\
211 "^\\(?:[ \t]+at \\|==[0-9]+== +\\(?:at\\|b\\(y\\)\\)\\).+(\\([^()\n]+\\):\\([0-9]+\\))$" 2 3 nil (1))
217 ;; This used to be pathologically slow on long lines (Bug#3441),
218 ;; due to matching filenames via \\(.*?\\). This might be faster.
220 ;; Maven is a popular free software build tool for Java.
238 ;; The first line matches the program name for
240 ;; PROGRAM:SOURCE-FILE-NAME:LINENO: MESSAGE
242 ;; format, which is used for non-interactive programs other than
243 ;; compilers (e.g. the "jade:" entry in compilation.txt).
245 ;; This first line makes things ambiguous with output such as
246 ;; "foo:344:50:blabla" since the "foo" part can match this first
247 ;; line (in which case the file name as "344"). To avoid this,
248 ;; the second line disallows filenames exclusively composed of
249 ;; digits.
251 ;; Similarly, we get lots of false positives with messages including
252 ;; times of the form "HH:MM:SS" where MM is taken as a line number, so
253 ;; the last line tries to rule out message where the info after the
254 ;; line number starts with "SS". --Stef
256 ;; The core of the regexp is the one with *?. It says that a file name
257 ;; can be composed of any non-newline char, but it also rules out some
258 ;; valid but unlikely cases, such as a trailing space or a space
259 ;; followed by a -, or a colon followed by a space.
261 ;; The "in \\|from " exception was added to handle messages from Ruby.
276 "^makepp\\(?:\\(?:: warning\\(:\\).*?\\|\\(: Scanning\\|: [LR]e?l?oading makefile\\|: Imported\\|log:.*?\\) \\|: .*?\\)\
283 2 3 nil
287 nil)))
289 ;; Should be lint-1, lint-2 (SysV lint)
296 ;; The message may be a "warning", "error", or "fatal error" with
297 ;; an error code, or "see declaration of" without an error code.
303 ;; "omake -P" reports "file foo changed"
304 ;; (useful if you do "cvs up" and want to see what has changed)
306 ;; FIXME-omake: This tries to prevent reusing pre-existing markers
307 ;; for subsequent messages, since those messages's line numbers
308 ;; are about another version of the file.
310 nil)))
318 ;; "during global destruction": This comes out under "use
319 ;; warnings" in recent perl when breaking circular references
320 ;; during program or thread exit.
368 ;; Underlines over all lines of gcov output are too uncomfortable to read.
369 ;; However, hyperlinks embedded in the lines are useful.
370 ;; So I put default face on the lines; and then put
371 ;; compilation-*-face by manually to eliminate the underlines.
372 ;; The hyperlinks are still effective.
390 ;; podchecker error messages, per Pod::Checker.
391 ;; The style is from the Pod::Checker::poderror() function, eg.
392 ;; *** ERROR: Spurious text after =cut at line 193 in file foo.pm
393 ;;
394 ;; Plus end_pod() can give "at line EOF" instead of a
395 ;; number, so for that match "on line N" which is the
396 ;; originating spot, eg.
397 ;; *** ERROR: =over on line 37 without closing =back at line EOF in file bar.pm
398 ;;
399 ;; Plus command() can give both "on line N" and "at line N";
400 ;; the latter is desired and is matched because the .* is
401 ;; greedy.
402 ;; *** ERROR: =over on line 1 without closing =back (at head1) at line 3 in file x.pod
403 ;;
408 ;; perl Test module error messages.
409 ;; Style per the ok() function "$context", eg.
410 ;; # Failed test 1 in foo.t at line 6
411 ;;
415 ;; Or when comparing got/want values, with a "fail #n" if repeated
416 ;; # Test 2 got: "xx" (t-compilation-perl-2.t at line 10)
417 ;; # Test 3 got: "xx" (t-compilation-perl-2.t at line 10 fail #2)
418 ;;
419 ;; And under Test::Harness they're preceded by progress stuff with
420 ;; \r and "NOK",
421 ;; ... NOK 1# Test 1 got: "1234" (t/foo.t at line 46)
422 ;;
427 ;; perl Test::Harness output, eg.
428 ;; NOK 1# Test 1 got: "1234" (t/foo.t at line 46)
429 ;;
430 ;; Test::Harness is slightly designed for tty output, since
431 ;; it prints CRs to overwrite progress messages, but if you
432 ;; run it in with M-x compile this pattern can at least step
433 ;; through the failures.
434 ;;
438 ;; The style comes from HTML::Lint::Error::as_string(), eg.
439 ;; index.html (13:1) Unknown element <fdjsk>
440 ;;
441 ;; The pattern only matches filenames without spaces, since that
442 ;; should be usual and should help reduce the chance of a false
443 ;; match of a message from some unrelated program.
444 ;;
445 ;; This message style is quite close to the "ibm" entry which is
446 ;; for IBM C, though that ibm bit doesn't put a space after the
447 ;; filename.
448 ;;
451 )
456 "Alist that specifies how to match errors in compiler output.
457 On GNU and Unix, any string is a valid filename, so these
458 matchers must make some common sense assumptions, which catch
459 normal cases. A shorter list will be lighter on resource usage.
461 Instead of an alist element, you can use a symbol, which is
462 looked up in `compilation-error-regexp-alist-alist'. You can see
463 the predefined symbols and their effects in the file
464 `etc/compilation.txt' (linked below if you are customizing this).
466 Each elt has the form (REGEXP FILE [LINE COLUMN TYPE HYPERLINK
467 HIGHLIGHT...]). If REGEXP matches, the FILE'th subexpression
468 gives the file name, and the LINE'th subexpression gives the line
469 number. The COLUMN'th subexpression gives the column number on
470 that line.
472 If FILE, LINE or COLUMN are nil or that index didn't match, that
473 information is not present on the matched line. In that case the
474 file name is assumed to be the same as the previous one in the
475 buffer, line number defaults to 1 and column defaults to
476 beginning of line's indentation.
478 FILE can also have the form (FILE FORMAT...), where the FORMATs
480 name, until a file of that name is found. Or FILE can also be a
481 function that returns (FILENAME) or (RELATIVE-FILENAME . DIRNAME).
482 In the former case, FILENAME may be relative or absolute.
484 LINE can also be of the form (LINE . END-LINE) meaning a range
485 of lines. COLUMN can also be of the form (COLUMN . END-COLUMN)
486 meaning a range of columns starting on LINE and ending on
487 END-LINE, if that matched.
489 TYPE is 2 or nil for a real error or 1 for warning or 0 for info.
490 TYPE can also be of the form (WARNING . INFO). In that case this
491 will be equivalent to 1 if the WARNING'th subexpression matched
492 or else equivalent to 0 if the INFO'th subexpression matched.
493 See `compilation-error-face', `compilation-warning-face',
494 `compilation-info-face' and `compilation-skip-threshold'.
496 What matched the HYPERLINK'th subexpression has `mouse-face' and
497 `compilation-message-face' applied. If this is nil, the text
498 matched by the whole REGEXP becomes the hyperlink.
500 Additional HIGHLIGHTs take the shape (SUBMATCH FACE), where
501 SUBMATCH is the number of a submatch and FACE is an expression
502 which evaluates to a face name (a symbol or string).
503 Alternatively, FACE can evaluate to a property list of the
504 form (face FACE PROP1 VAL1 PROP2 VAL2 ...), in which case all the
505 listed text properties PROP# are given values VAL# as well."
512 ;;;###autoload(put 'compilation-directory 'safe-local-variable 'stringp)
518 "A list for tracking when directories are entered or left.
519 If nil, do not track directories, e.g. if all file names are absolute. The
520 first element is the REGEXP matching these messages. It can match any number
521 of variants, e.g. different languages. The remaining elements are all of the
522 form (DIR . LEAVE). If for any one of these the DIR'th subexpression
523 matches, that is a directory name. If LEAVE is nil or the corresponding
524 LEAVE'th subexpression doesn't match, this message is about going into another
525 directory. If it does match anything, this message is about going back to the
526 directory we were in before the last entering message. If you change this,
535 ("^[Cc]hecking \\(?:[Ff]or \\|[Ii]f \\|[Ww]hether \\(?:to \\)?\\)?\\(.+\\)\\.\\.\\. *\\(?:(cached) *\\)?\\(\\(yes\\(?: .+\\)?\\)\\|no\\|\\(.*\\)\\)$"
538 ;; Command output lines. Recognize `make[n]:' lines too.
545 ("^Compilation \\(exited abnormally\\|interrupt\\|killed\\|terminated\\|segmentation fault\\)\\(?:.*with code \\([0-9]+\\)\\)?.*"
549 "Additional things to highlight in Compilation mode.
553 "Regexp matching part of visited source lines to highlight temporarily.
560 "If non-nil, column numbers in error messages are screen columns.
561 Otherwise they are interpreted as character positions, with
562 each character occupying one column.
563 The default is to use screen columns, which requires that the compilation
564 program and Emacs agree about the display width of the characters,
565 especially the TAB character.
566 If this is buffer-local in the destination buffer, Emacs obeys
567 that value, otherwise it uses the value in the *compilation*
568 buffer. This enables a major-mode to specify its own value."
577 Note that changing this to nil may be a security risk, because a
578 file might define a malicious `compile-command' as a file local
579 variable, and you might not notice. Therefore, `compile-command'
580 is considered unsafe if this variable is nil."
584 ;;;###autoload
587 Otherwise, it saves all modified buffers without asking."
592 "The second argument (PRED) passed to `save-some-buffers' before compiling.
593 E.g., one can set this to
594 (lambda ()
595 (string-prefix-p my-compilation-root (file-truename (buffer-file-name))))
596 to limit saving to files located under `my-compilation-root'.
597 Note, that, in general, `compilation-directory' cannot be used instead
598 of `my-compilation-root' here."
602 function)
606 ;;;###autoload
608 "List of directories to search for source files named in error messages.
609 Elements should be directory names, not file names of directories.
610 The value nil as an element means to try the default directory."
615 ;;;###autoload
617 "Last shell command used to do a compilation; default for next compilation.
619 Sometimes it is useful for files to supply local values for this variable.
620 You might also use mode hooks to specify it in certain modes, like this:
622 (add-hook 'c-mode-hook
623 (lambda ()
626 (set (make-local-variable 'compile-command)
628 (file-name-sans-extension buffer-file-name))))))"
631 ;;;###autoload(put 'compile-command 'safe-local-variable (lambda (a) (and (stringp a) (or (not (boundp 'compilation-read-command)) compilation-read-command))))
633 ;;;###autoload
635 "If non-nil, send end-of-file as compilation process input.
636 This only affects platforms that support asynchronous processes (see
637 `start-process'); synchronous compilation processes never accept input."
642 ;; A weak per-compilation-buffer hash indexed by (FILENAME . DIRECTORY). Each
643 ;; value is a FILE-STRUCTURE as described above, with the car eq to the hash
644 ;; key. This holds the tree seen from root, for storing new nodes.
648 "Set this to t before creating a *compilation* buffer.
649 Then every error line will have a debug text property with the matcher that
653 If non-nil, called when a compilation process dies to return a status message.
654 This should be a function of three arguments: process status, exit status,
655 and exit message; it returns a cons (MESSAGE . MODELINE) of the strings to
659 "List of environment variables for compilation to inherit.
660 Each element should be a string of the form ENVVARNAME=VALUE.
661 This list is temporarily prepended to `process-environment' prior to
662 starting the compilation process."
668 ;; History of compile commands.
673 "Face used to highlight compiler errors."
679 "Face used to highlight compiler warnings."
685 "Face used to highlight compiler information."
689 ;; The next three faces must be able to stand out against the
690 ;; `mode-line' and `mode-line-inactive' faces.
719 "Face for displaying line numbers in compiler messages."
725 "Face for displaying column numbers in compiler messages."
730 "Face name to use for whole messages.
731 Faces `compilation-error-face', `compilation-warning-face',
732 `compilation-info-face', `compilation-line-face' and
733 `compilation-column-face' get prepended to this, when applicable."
753 ;; same faces as dired uses
760 ;; Used for compatibility with the old compile.el.
766 "If non-nil, automatically jump to the first error during compilation."
775 ;; (defvar compilation-buffer-modtime nil
776 ;; "The buffer modification time, for buffers not associated with files.")
777 ;; (make-variable-buffer-local 'compilation-buffer-modtime)
783 "Compilation motion commands skip less important messages.
784 The value can be either 2 -- skip anything less than error, 1 --
785 skip anything less than warning or 0 -- don't skip any messages.
786 Note that all messages not positively identified as warning or
787 info, are considered errors."
795 "Switch the `compilation-skip-threshold' level."
810 "Compilation motion commands skip visited messages if this is t.
811 Visited messages are ones for which the file, line and column have been jumped
812 to from the current content in the current compilation buffer, even if it was
813 from a different message."
821 compilation-error-face))
823 ;; LOC (or location) is a list of (COLUMN LINE FILE-STRUCTURE nil nil)
825 ;; COLUMN and LINE are numbers parsed from an error message. COLUMN and maybe
826 ;; LINE will be nil for a message that doesn't contain them. Then the
827 ;; location refers to a indented beginning of line or beginning of file.
828 ;; Once any location in some file has been jumped to, the list is extended to
829 ;; (COLUMN LINE FILE-STRUCTURE MARKER TIMESTAMP . VISITED)
830 ;; for all LOCs pertaining to that file.
831 ;; MARKER initially points to LINE and COLUMN in a buffer visiting that file.
832 ;; Being a marker it sticks to some text, when the buffer grows or shrinks
833 ;; before that point. VISITED is t if we have jumped there, else nil.
834 ;; FIXME-omake: TIMESTAMP was used to try and handle "incremental compilation":
835 ;; `omake -P' polls filesystem for changes and recompiles when a file is
836 ;; modified using the same *compilation* buffer. this necessitates
837 ;; re-parsing markers.
839 ;; (cl-defstruct (compilation--loc
840 ;; (:constructor nil)
841 ;; (:copier nil)
842 ;; (:constructor compilation--make-loc
843 ;; (file-struct line col marker))
844 ;; (:conc-name compilation--loc->))
845 ;; col line file-struct marker timestamp visited)
847 ;; FIXME: We don't use a defstruct because of compilation-assq which looks up
848 ;; and creates part of the LOC (only the first cons cell containing the COL).
856 ;; (defmacro compilation--loc->timestamp (loc) `(nth 4 ,loc))
859 ;; FILE-STRUCTURE is a list of
860 ;; ((FILENAME DIRECTORY) FORMATS (LINE LOC ...) ...)
862 ;; FILENAME is a string parsed from an error message. DIRECTORY is a string
863 ;; obtained by following directory change messages. DIRECTORY will be nil for
864 ;; an absolute filename. FORMATS is a list of formats to apply to FILENAME if
865 ;; a file of that name can't be found.
866 ;; The rest of the list is an alist of elements with LINE as key. The keys
867 ;; are either nil or line numbers. If present, nil comes first, followed by
868 ;; the numbers in decreasing order. The LOCs for each line are again an alist
869 ;; ordered the same way. Note that the whole file structure is referenced in
870 ;; every LOC.
876 ;; The FORMATS field plays the role of ANCHOR in the loc-tree.
879 ;; MESSAGE is a list of (LOC TYPE END-LOC)
881 ;; TYPE is 0 for info or 1 for warning if the message matcher identified it as
882 ;; such, 2 otherwise (for a real error). END-LOC is a LOC pointing to the
883 ;; other end, if the parsed message contained a range. If the end of the
884 ;; range didn't specify a COLUMN, it defaults to -1, meaning end of line.
885 ;; These are the value of the `compilation-message' text-properties in the
886 ;; compilation buffer.
891 ;; (:type list) ;Old representation.
894 loc type end-loc)
897 "A pair (POS . RES) caching the result of previous directory search.
898 Basically, this pair says that calling
899 (previous-single-property-change POS 'compilation-directory)
900 returned RES, i.e. there is no change of `compilation-directory' between
915 "Like (previous-single-property-change POS 'compilation-directory), but faster."
916 ;; This avoids an N² behavior when there's no/few compilation-directory
917 ;; entries, in which case each call to previous-single-property-change
918 ;; ends up having to walk very far back to find the last change.
923 ;; No need to call previous-single-property-change.
937 prev)
952 prev))))
955 ;; Internal function for calculating the text properties of a directory
956 ;; change message. The compilation-directory property is important, because it
957 ;; is the stack of nested enter-messages. Relative filenames on the following
958 ;; lines are relative to the top of the stack.
961 ;; find previous stack, and push onto it, or if `leave' pop it
966 compilation-leave-directory-face
967 compilation-enter-directory-face)
972 ;; Place a `compilation-message' everywhere we change text-properties
973 ;; so compilation--remove-properties can know what to remove.
975 mouse-face highlight
976 keymap compilation-button-map
979 ;; Data type `reverse-ordered-alist' retriever. This function retrieves the
980 ;; KEY element from the ALIST, creating it in the right position if not already
981 ;; present. ALIST structure is
982 ;; '(ANCHOR (KEY1 ...) (KEY2 ...)... (KEYn ALIST ...))
983 ;; ANCHOR is ignored, but necessary so that elements can be inserted. KEY1
984 ;; may be nil. The other KEYs are ordered backwards so that growing line
985 ;; numbers can be inserted in front and searching can abort after half the
986 ;; list on average.
997 l2
1008 ;; This function is the central driver, called when font-locking to gather
1009 ;; all information needed to later jump to corresponding source code.
1010 ;; Return a property list with all meta information on this error location.
1027 ;; This message didn't mention one, get it from previous
1029 ;; Find the previous message.
1032 ;; Get the file structure that belongs to it.
1041 ;; Construct FILE . DIR from that.
1047 ;; All of these fields are optional, get them only if we have an index, and
1048 ;; it matched some part of the message.
1078 file line end-line col end-col type fmt)))
1081 "Go to column COL on the current line.
1082 If SCREEN is non-nil, columns are screen columns, otherwise, they are
1083 just char-counts."
1090 "Get the meta-info that will be added as text-properties.
1091 LINE, END-LINE, COL, END-COL are integers or nil.
1092 TYPE can be 0, 1, or 2, meaning error, warning, or just info.
1093 FILE should be (FILENAME) or (RELATIVE-FILENAME . DIRNAME) or nil.
1094 FMTS is a list of format specs for transforming the file name.
1095 (See `compilation-error-regexp-alist'.)"
1098 ;; Get first already existing marker (if any has one, all have one).
1099 ;; Do this first, as the compilation-assq`s may create new nodes.
1106 end-marker loc end-loc)
1123 ;; Obey the compilation-error-screen-columns of the target
1124 ;; buffer if its major mode set it buffer-locally.
1126 compilation-error-screen-columns screen-columns))
1129 compilation-first-column first-column)))
1134 ;; Set end-marker if appropriate and go to line.
1149 file-struct)))
1155 file-struct)))
1159 ;; If they are new, make the loc(s) reference the file they point to.
1160 ;; FIXME-omake: there's a problem with timestamps here: the markers
1161 ;; relative to which we computed the current `marker' have a timestamp
1162 ;; almost guaranteed to be different from compilation-buffer-modtime, so if
1163 ;; we use their timestamp, we'll never use `loc' since the timestamp won't
1164 ;; match compilation-buffer-modtime, and if we use
1165 ;; compilation-buffer-modtime then we have different timestamps for
1166 ;; locations that were computed together, which doesn't make sense either.
1167 ;; I think this points to a fundamental problem in our approach to the
1168 ;; "omake -P" problem. --Stef
1175 end-marker))))
1177 ;; Must start with face
1181 "mouse-2: visit this file, line and column"
1183 "mouse-2: visit this file and line"
1185 keymap compilation-button-map
1186 mouse-face highlight)))
1192 prop val)))
1196 ;; When compile.el used font-lock directly, we could just remove all
1197 ;; our text-properties in one go, but now that we manually place
1198 ;; font-lock-face, we have to be careful to only remove the font-lock-face
1199 ;; we placed.
1200 ;; (remove-list-of-text-properties
1201 ;; (or start (point-min)) (or end (point-max))
1202 ;; '(compilation-debug compilation-directory compilation-message
1203 ;; font-lock-face help-echo mouse-face))
1212 end))
1215 start next
1217 font-lock-face help-echo mouse-face)))
1224 ;; We generally don't like to parse partial lines.
1231 ;; An old package! Try the compatibility code.
1236 ;; compilation-directory-matcher is the only part that really needs to be
1237 ;; parsed sequentially. So we could split it out, handle directories
1238 ;; like syntax-propertize, and the rest as font-lock-keywords. But since
1239 ;; we want to have it work even when font-lock is off, we'd then need to
1240 ;; use our own compilation-parsed text-property to keep track of the parts
1241 ;; that have already been parsed.
1244 end t)
1249 'compilation-debug
1260 "Parse errors between START and END.
1261 The errors recognized are the ones specified in RULES which default
1262 to `compilation-error-regexp-alist' if RULES is nil."
1266 compilation-error-regexp-alist-alist))))
1272 end-line end-col fmt
1273 props)
1275 ;; omake reports some error indented, so skip the indentation.
1276 ;; another solution is to modify (some?) regexps in
1277 ;; `compilation-error-regexp-alist'.
1278 ;; note that omake usage is not limited to ocaml and C (for stubs).
1279 ;; FIXME-omake: Doing it here seems wrong, at least it should depend on
1280 ;; whether or not omake's own error messages are recognized.
1292 ;; The old compile.el had here an undocumented hook that
1293 ;; allowed `line' to be a function that computed the actual
1294 ;; error location. Let's do our best.
1323 file 'font-lock-face
1327 compilation-warning-face
1328 compilation-error-face]
1341 ;; Obey HIGHLIGHT.
1364 face)))))))
1381 "Make sure the text has been parsed up to LIMIT."
1386 ;; We use a marker for compilation--parsed so that users (such as
1387 ;; grep.el) don't need to flush-parse when they modify the buffer
1388 ;; in a way that impacts buffer positions but does not require
1389 ;; re-parsing.
1398 nil)
1401 "Mark the region between START and END for re-parsing."
1406 "Return expressions to highlight in Compilation mode."
1409 compilation-mode-font-lock-keywords))
1417 \f
1418 ;;;###autoload
1420 "Compile the program including the current buffer. Default: run `make'.
1421 Runs COMMAND, a shell command, in a separate process asynchronously
1422 with output going to the buffer `*compilation*'.
1425 and move to the source code that caused it.
1427 If optional second arg COMINT is t the buffer will be in Comint mode with
1428 `compilation-shell-minor-mode'.
1430 Interactively, prompts for the command if `compilation-read-command' is
1431 non-nil; otherwise uses `compile-command'. With prefix arg, always prompts.
1432 Additionally, with universal prefix arg, compilation buffer will be in
1433 comint mode, i.e. interactive.
1435 To run more than one compilation at once, start one then rename
1436 the \`*compilation*' buffer to some other name with
1438 It will create a new \`*compilation*' buffer.
1440 On most systems, termination of the main compilation process
1441 kills its subprocesses.
1443 The name used for the buffer is actually whatever is returned by
1444 the function in `compilation-buffer-name-function', so you can set that
1445 to a function that generates a unique name."
1451 command))
1456 compilation-save-buffers-predicate)
1460 ;; run compile with the default command line
1462 "Re-compile the program including the current buffer.
1463 If this is run in a Compilation mode buffer, re-use the arguments from the
1464 original use. Otherwise, recompile using `compile-command'.
1465 If the optional argument `edit-command' is non-nil, the command can be edited."
1468 compilation-save-buffers-predicate)
1477 "Non-nil to scroll the *compilation* buffer window as output appears.
1479 Setting it causes the Compilation mode commands to put point at the
1480 end of their output window so that the end of the output is always
1481 visible rather than the beginning.
1483 The value `first-error' stops scrolling at the first error, and leaves
1484 point on its location in the *compilation* buffer."
1493 "Return the name of a compilation buffer to use.
1494 If NAME-FUNCTION is non-nil, call it with one argument NAME-OF-MODE
1495 to determine the buffer name.
1496 Likewise if `compilation-buffer-name-function' is non-nil.
1497 If current buffer has the major mode MODE-COMMAND,
1498 return the name of the current buffer, so that it gets reused.
1499 Otherwise, construct a buffer name from NAME-OF-MODE."
1510 "If t, always kill a running compilation process before starting a new one.
1511 If nil, ask to kill it."
1516 ;;;###autoload
1518 "Run compilation command COMMAND (low level interface).
1519 If COMMAND starts with a cd command, that becomes the `default-directory'.
1520 The rest of the arguments are optional; for them, nil means use the default.
1522 MODE is the major mode to set in the compilation buffer. Mode
1523 may also be t meaning use `compilation-shell-minor-mode' under `comint-mode'.
1525 If NAME-FUNCTION is non-nil, call it with one argument (the mode name)
1526 to determine the buffer name. Otherwise, the default is to
1527 reuses the current buffer if it has the proper major mode,
1528 else use or create a buffer with name based on the major mode.
1530 If HIGHLIGHT-REGEXP is non-nil, `next-error' will temporarily highlight
1531 the matching section of the visited source line; the default is to use the
1532 global value of `compilation-highlight-regexp'.
1534 Returns the compilation buffer created."
1538 "compilation"
1542 outwin outbuf)
1553 name-of-mode)))
1562 ;; first transfer directory from where M-x compile was called
1564 ;; Make compilation buffer read-only. The filter can still write it.
1565 ;; Clear out the compilation buffer.
1568 ;; Then evaluate a cd command if any, but don't perform it yet, else
1569 ;; start-command would do it again through the shell: (cd "..") AND
1570 ;; sh -c "cd ..; make"
1572 ((not (string-match "\\`\\s *cd\\(?:\\s +\\(\\S +?\\|'[^']*'\\|\"\\(?:[^\"`$\\]\\|\\\\.\\)*\"\\)\\)?\\s *[;&\n]"
1573 command))
1574 default-directory)
1586 ;; Select the desired mode.
1594 ;; Remember the original dir, so we can use it when we recompile.
1595 ;; default-directory' can't be used reliably for that because it may be
1596 ;; affected by the special handling of "cd ...;".
1597 ;; NB: must be done after (funcall mode) as that resets local variables
1602 highlight-regexp))
1606 ;; Output a mode setter, for saving and later reloading this buffer.
1608 "; default-directory: "
1612 mode-name
1617 ;; Pop up the compilation buffer.
1618 ;; http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01638.html
1623 compilation-environment
1625 system-uses-terminfo)
1631 ;; Set the EMACS variable, but
1632 ;; don't override users' setting of $EMACS.
1643 ;; Position point as the user will see it.
1645 ;; Put it at the end if `compilation-scroll-output' is set.
1648 ;; Normally put it at the top.
1654 ;; The setup function is called before compilation-set-window-height
1655 ;; so it can set the compilation-window-height buffer locally.
1659 ;; Start the compilation.
1663 ;; comint uses `start-file-process'.
1669 "/bin/sh"
1670 shell-file-name)
1673 outbuf command))))
1674 ;; Make the buffer's mode line show process state.
1678 ;; Set the process as killable without query by default.
1679 ;; This allows us to start a new compilation without
1680 ;; getting prompted.
1686 ;; Keep the comint filter, since it's needed for proper
1687 ;; handling of the prompts.
1689 ;; Use (point-max) here so that output comes in
1690 ;; after the initial text,
1691 ;; regardless of where the user sees point.
1696 ;; The process may have exited already.
1701 ;; No asynchronous processes available.
1703 ;; Fake mode line display as if `start-process' were run.
1709 ;; Insert the output at the end, after the initial text,
1710 ;; regardless of where the user sees point.
1715 command)))
1719 'exit status
1730 ;; Now finally cd to where the shell started make/grep/...
1732 ;; The following form selected outwin ever since revision 1.183,
1733 ;; so possibly messing up point in some other window (bug#1073).
1734 ;; Moved into the scope of with-current-buffer, though still with
1735 ;; complete disregard for the case when compilation-scroll-output
1736 ;; equals 'first-error (martin 2008-10-04).
1740 ;; Make it so the next C-x ` will use this buffer.
1744 "Set the height of WINDOW according to `compilation-window-height'."
1748 ;; If window is alone in its frame, aside from a minibuffer,
1749 ;; don't change its height.
1751 ;; Stef said that doing the saves in this order is safer:
1767 "Auto Error Display" next-error-follow-minor-mode
1804 map))
1819 ;; Set up the menu-bar
1822 map)
1832 ;; Set up the menu-bar
1835 map)
1843 map)
1849 ;; Don't inherit from compilation-minor-mode-map,
1850 ;; because that introduces a menu bar item we don't want.
1851 ;; That confuses C-down-mouse-3.
1864 (define-key map "g" 'recompile) ; revert
1866 (define-key map "\C-c\C-f" 'next-error-follow-minor-mode)
1868 ;; Set up the menu-bar
1869 (let ((submap (make-sparse-keymap "Compile")))
1870 (define-key map [menu-bar compilation]
1871 (cons "Compile" submap))
1872 (set-keymap-parent submap compilation-menu-map))
1873 (define-key map [menu-bar compilation compilation-separator2]
1874 '("----" . nil))
1875 (define-key map [menu-bar compilation compilation-grep]
1876 '(menu-item "Search Files (grep)..." grep
1877 :help "Run grep, with user-specified args, and collect output in a buffer"))
1878 (define-key map [menu-bar compilation compilation-recompile]
1879 '(menu-item "Recompile" recompile
1880 :help "Re-compile the program including the current buffer"))
1881 (define-key map [menu-bar compilation compilation-compile]
1882 '(menu-item "Compile..." compile
1883 :help "Compile the program including the current buffer. Default: run `make'"))
1884 map)
1885 "Keymap for compilation log buffers.
1886 `compilation-minor-mode-map' is a parent of this.")
1888 (defvar compilation-mode-tool-bar-map
1889 ;; When bootstrapping, tool-bar-map is not properly initialized yet,
1890 ;; so don't do anything.
1891 (when (keymapp tool-bar-map)
1892 (let ((map (copy-keymap tool-bar-map)))
1893 (define-key map [undo] nil)
1894 (define-key map [separator-2] nil)
1895 (define-key-after map [separator-compile] menu-bar-separator)
1896 (tool-bar-local-item
1897 "left-arrow" 'previous-error-no-select 'previous-error-no-select map
1898 :rtl "right-arrow"
1899 :help "Goto previous error")
1900 (tool-bar-local-item
1901 "right-arrow" 'next-error-no-select 'next-error-no-select map
1902 :rtl "left-arrow"
1903 :help "Goto next error")
1904 (tool-bar-local-item
1905 "cancel" 'kill-compilation 'kill-compilation map
1906 :enable '(let ((buffer (compilation-find-buffer)))
1907 (get-buffer-process buffer))
1908 :help "Stop compilation")
1909 (tool-bar-local-item
1910 "refresh" 'recompile 'recompile map
1911 :help "Restart compilation")
1912 map)))
1914 (put 'compilation-mode 'mode-class 'special)
1916 ;;;###autoload
1917 (defun compilation-mode (&optional name-of-mode)
1918 "Major mode for compilation log buffers.
1923 Runs `compilation-mode-hook' with `run-mode-hooks' (which see).
1926 (interactive)
1927 (kill-all-local-variables)
1928 (use-local-map compilation-mode-map)
1929 ;; Let windows scroll along with the output.
1930 (set (make-local-variable 'window-point-insertion-type) t)
1931 (set (make-local-variable 'tool-bar-map) compilation-mode-tool-bar-map)
1932 (setq major-mode 'compilation-mode ; FIXME: Use define-derived-mode.
1933 mode-name (or name-of-mode "Compilation"))
1934 (set (make-local-variable 'page-delimiter)
1935 compilation-page-delimiter)
1936 ;; (set (make-local-variable 'compilation-buffer-modtime) nil)
1937 (compilation-setup)
1938 (setq buffer-read-only t)
1939 (run-mode-hooks 'compilation-mode-hook))
1941 ;;;###autoload
1942 (put 'define-compilation-mode 'doc-string-elt 3)
1944 (defmacro define-compilation-mode (mode name doc &rest body)
1945 "This is like `define-derived-mode' without the PARENT argument.
1946 The parent is always `compilation-mode' and the customizable `compilation-...'
1947 variables are also set from the name of the mode you have chosen,
1948 by replacing the first word, e.g `compilation-scroll-output' from
1949 `grep-scroll-output' if that variable exists."
1951 `(define-derived-mode ,mode compilation-mode ,name
1952 ,doc
1953 ,@(mapcar (lambda (v)
1954 (setq v (cons v
1955 (intern-soft (replace-regexp-in-string
1956 "^compilation" mode-name
1957 (symbol-name v)))))
1958 (and (cdr v)
1959 (or (boundp (cdr v))
1960 ;; FIXME: This is hackish, using undocumented info.
1961 (if (boundp 'byte-compile-bound-variables)
1962 (memq (cdr v) byte-compile-bound-variables)))
1963 `(set (make-local-variable ',(car v)) ,(cdr v))))
1964 '(compilation-buffer-name-function
1965 compilation-directory-matcher
1966 compilation-error
1967 compilation-error-regexp-alist
1968 compilation-error-regexp-alist-alist
1969 compilation-error-screen-columns
1970 compilation-finish-function
1971 compilation-finish-functions
1972 compilation-first-column
1973 compilation-mode-font-lock-keywords
1974 compilation-page-delimiter
1975 compilation-parse-errors-filename-function
1976 compilation-process-setup-function
1977 compilation-scroll-output
1978 compilation-search-path
1979 compilation-skip-threshold
1980 compilation-window-height))
1981 ,@body)))
1983 (defun compilation-revert-buffer (ignore-auto noconfirm)
1984 (if buffer-file-name
1985 (let (revert-buffer-function)
1986 (revert-buffer ignore-auto noconfirm))
1987 (if (or noconfirm (yes-or-no-p (format "Restart compilation? ")))
1988 (apply 'compilation-start compilation-arguments))))
1990 (defvar compilation-current-error nil
1991 "Marker to the location from where the next error will be found.
1992 The global commands next/previous/first-error/goto-error use this.")
1994 (defvar compilation-messages-start nil
1995 "Buffer position of the beginning of the compilation messages.
1996 If nil, use the beginning of buffer.")
1998 (defun compilation-setup (&optional minor)
1999 "Prepare the buffer for the compilation parsing commands to work.
2000 Optional argument MINOR indicates this is called from
2001 `compilation-minor-mode'."
2002 (make-local-variable 'compilation-current-error)
2003 (make-local-variable 'compilation-messages-start)
2004 (make-local-variable 'compilation-error-screen-columns)
2005 (make-local-variable 'overlay-arrow-position)
2006 (set (make-local-variable 'overlay-arrow-string) "")
2007 (setq next-error-overlay-arrow-position nil)
2008 (add-hook 'kill-buffer-hook
2009 (lambda () (setq next-error-overlay-arrow-position nil)) nil t)
2010 ;; Note that compilation-next-error-function is for interfacing
2011 ;; with the next-error function in simple.el, and it's only
2012 ;; coincidentally named similarly to compilation-next-error.
2013 (setq next-error-function 'compilation-next-error-function)
2014 (set (make-local-variable 'comint-file-name-prefix)
2015 (or (file-remote-p default-directory) ""))
2016 (set (make-local-variable 'compilation-locs)
2017 (make-hash-table :test 'equal :weakness 'value))
2018 ;; It's generally preferable to use after-change-functions since they
2019 ;; can be subject to combine-after-change-calls, but if we do that, we risk
2020 ;; running our hook after font-lock, resulting in incorrect refontification.
2021 (add-hook 'before-change-functions 'compilation--flush-parse nil t)
2022 ;; Also for minor mode, since it's not permanent-local.
2023 (add-hook 'change-major-mode-hook #'compilation--remove-properties nil t)
2024 (if minor
2025 (progn
2026 (font-lock-add-keywords nil (compilation-mode-font-lock-keywords))
2027 (if font-lock-mode
2028 (font-lock-fontify-buffer)))
2029 (setq font-lock-defaults '(compilation-mode-font-lock-keywords t))))
2031 (defun compilation--unsetup ()
2032 ;; Only for minor mode.
2033 (font-lock-remove-keywords nil (compilation-mode-font-lock-keywords))
2034 (remove-hook 'before-change-functions 'compilation--flush-parse t)
2035 (kill-local-variable 'compilation--parsed)
2036 (compilation--remove-properties)
2037 (if font-lock-mode
2038 (font-lock-fontify-buffer)))
2040 ;;;###autoload
2041 (define-minor-mode compilation-shell-minor-mode
2042 "Toggle Compilation Shell minor mode.
2043 With a prefix argument ARG, enable Compilation Shell minor mode
2044 if ARG is positive, and disable it otherwise. If called from
2045 Lisp, enable the mode if ARG is omitted or nil.
2047 When Compilation Shell minor mode is enabled, all the
2048 error-parsing commands of the Compilation major mode are
2049 available but bound to keys that don't collide with Shell mode.
2050 See `compilation-mode'."
2051 nil " Shell-Compile"
2052 :group 'compilation
2053 (if compilation-shell-minor-mode
2054 (compilation-setup t)
2055 (compilation--unsetup)))
2057 ;;;###autoload
2058 (define-minor-mode compilation-minor-mode
2059 "Toggle Compilation minor mode.
2060 With a prefix argument ARG, enable Compilation minor mode if ARG
2061 is positive, and disable it otherwise. If called from Lisp,
2062 enable the mode if ARG is omitted or nil.
2064 When Compilation minor mode is enabled, all the error-parsing
2065 commands of Compilation major mode are available. See
2066 `compilation-mode'."
2067 nil " Compilation"
2068 :group 'compilation
2069 (if compilation-minor-mode
2070 (compilation-setup t)
2071 (compilation--unsetup)))
2073 (defun compilation-handle-exit (process-status exit-status msg)
2074 "Write MSG in the current buffer and hack its `mode-line-process'."
2075 (let ((inhibit-read-only t)
2076 (status (if compilation-exit-message-function
2077 (funcall compilation-exit-message-function
2078 process-status exit-status msg)
2079 (cons msg exit-status)))
2080 (omax (point-max))
2081 (opoint (point))
2082 (cur-buffer (current-buffer)))
2083 ;; Record where we put the message, so we can ignore it later on.
2084 (goto-char omax)
2086 (if (and (numberp compilation-window-height)
2087 (zerop compilation-window-height))
2088 (message "%s" (cdr status)))
2089 (if (bolp)
2090 (forward-char -1))
2091 (insert " at " (substring (current-time-string) 0 19))
2092 (goto-char (point-max))
2093 ;; Prevent that message from being recognized as a compilation error.
2094 (add-text-properties omax (point)
2095 (append '(compilation-handle-exit t) nil))
2096 (setq mode-line-process
2097 (let ((out-string (format ":%s [%s]" process-status (cdr status)))
2098 (msg (format "%s %s" mode-name
2100 (car status)))))
2101 (message "%s" msg)
2102 (propertize out-string
2103 'help-echo msg
2104 'face (if (> exit-status 0)
2105 'compilation-mode-line-fail
2106 'compilation-mode-line-exit))))
2107 ;; Force mode line redisplay soon.
2108 (force-mode-line-update)
2109 (if (and opoint (< opoint omax))
2110 (goto-char opoint))
2111 (with-no-warnings
2112 (if compilation-finish-function
2113 (funcall compilation-finish-function cur-buffer msg)))
2114 (run-hook-with-args 'compilation-finish-functions cur-buffer msg)))
2116 ;; Called when compilation process changes state.
2117 (defun compilation-sentinel (proc msg)
2118 "Sentinel for compilation buffers."
2119 (if (memq (process-status proc) '(exit signal))
2120 (let ((buffer (process-buffer proc)))
2121 (if (null (buffer-name buffer))
2122 ;; buffer killed
2123 (set-process-buffer proc nil)
2124 (with-current-buffer buffer
2125 ;; Write something in the compilation buffer
2126 ;; and hack its mode line.
2127 (compilation-handle-exit (process-status proc)
2128 (process-exit-status proc)
2129 msg)
2130 ;; Since the buffer and mode line will show that the
2131 ;; process is dead, we can delete it now. Otherwise it
2132 ;; will stay around until M-x list-processes.
2133 (delete-process proc)))
2134 (setq compilation-in-progress (delq proc compilation-in-progress)))))
2136 (defun compilation-filter (proc string)
2137 "Process filter for compilation buffers.
2138 Just inserts the text,
2139 handles carriage motion (see `comint-inhibit-carriage-motion'),
2140 and runs `compilation-filter-hook'."
2141 (when (buffer-live-p (process-buffer proc))
2142 (with-current-buffer (process-buffer proc)
2143 (let ((inhibit-read-only t)
2144 ;; `save-excursion' doesn't use the right insertion-type for us.
2145 (pos (copy-marker (point) t))
2146 ;; `save-restriction' doesn't use the right insertion type either:
2147 ;; If we are inserting at the end of the accessible part of the
2148 ;; buffer, keep the inserted text visible.
2149 (min (point-min-marker))
2150 (max (copy-marker (point-max) t))
2151 (compilation-filter-start (marker-position (process-mark proc))))
2152 (unwind-protect
2153 (progn
2154 (widen)
2155 (goto-char compilation-filter-start)
2156 ;; We used to use `insert-before-markers', so that windows with
2157 ;; point at `process-mark' scroll along with the output, but we
2158 ;; now use window-point-insertion-type instead.
2159 (insert string)
2160 (unless comint-inhibit-carriage-motion
2161 (comint-carriage-motion (process-mark proc) (point)))
2162 (set-marker (process-mark proc) (point))
2163 ;; (set (make-local-variable 'compilation-buffer-modtime)
2164 ;; (current-time))
2165 (run-hooks 'compilation-filter-hook))
2166 (goto-char pos)
2167 (narrow-to-region min max)
2168 (set-marker pos nil)
2169 (set-marker min nil)
2170 (set-marker max nil))))))
2172 ;;; test if a buffer is a compilation buffer, assuming we're in the buffer
2173 (defsubst compilation-buffer-internal-p ()
2174 "Test if inside a compilation buffer."
2175 (local-variable-p 'compilation-locs))
2177 ;;; test if a buffer is a compilation buffer, using compilation-buffer-internal-p
2178 (defsubst compilation-buffer-p (buffer)
2179 "Test if BUFFER is a compilation buffer."
2180 (with-current-buffer buffer
2181 (compilation-buffer-internal-p)))
2183 (defmacro compilation-loop (< property-change 1+ error limit)
2184 `(let (opt)
2185 (while (,< n 0)
2186 (setq opt pt)
2187 (or (setq pt (,property-change pt 'compilation-message))
2188 ;; Handle the case where where the first error message is
2189 ;; at the start of the buffer, and n < 0.
2190 (if (or (eq (get-text-property ,limit 'compilation-message)
2191 (get-text-property opt 'compilation-message))
2192 (eq pt opt))
2193 (user-error ,error compilation-error)
2194 (setq pt ,limit)))
2195 ;; prop 'compilation-message usually has 2 changes, on and off, so
2196 ;; re-search if off
2197 (or (setq msg (get-text-property pt 'compilation-message))
2198 (if (setq pt (,property-change pt 'compilation-message nil ,limit))
2199 (setq msg (get-text-property pt 'compilation-message)))
2200 (user-error ,error compilation-error))
2201 (or (< (compilation--message->type msg) compilation-skip-threshold)
2202 (if different-file
2203 (eq (prog1 last
2204 (setq last (compilation--loc->file-struct
2205 (compilation--message->loc msg))))
2206 last))
2207 (if compilation-skip-visited
2208 (compilation--loc->visited (compilation--message->loc msg)))
2209 (if compilation-skip-to-next-location
2210 (eq (compilation--message->loc msg) loc))
2211 ;; count this message only if none of the above are true
2212 (setq n (,1+ n))))))
2214 (defun compilation-next-single-property-change (position prop
2215 &optional object limit)
2216 (let (parsed res)
2217 (while (progn
2218 ;; We parse the buffer here "on-demand" by chunks of 500 chars.
2219 ;; But we could also just parse the whole buffer.
2220 (compilation--ensure-parse
2221 (setq parsed (max compilation--parsed
2222 (min (+ position 500)
2223 (or limit (point-max))))))
2224 (and (or (not (setq res (next-single-property-change
2225 position prop object limit)))
2226 (eq res limit))
2227 (< position (or limit (point-max)))))
2228 (setq position parsed))
2229 res))
2231 (defun compilation-next-error (n &optional different-file pt)
2232 "Move point to the next error in the compilation buffer.
2234 Prefix arg N says how many error messages to move forwards (or
2235 backwards, if negative).
2236 Optional arg DIFFERENT-FILE, if non-nil, means find next error for a
2237 file that is different from the current one.
2238 Optional arg PT, if non-nil, specifies the value of point to start
2239 looking for the next message."
2240 (interactive "p")
2241 (or (compilation-buffer-p (current-buffer))
2242 (error "Not in a compilation buffer"))
2243 (or pt (setq pt (point)))
2244 (let* ((msg (get-text-property pt 'compilation-message))
2245 ;; `loc', `msg', and `last' are used by the compilation-loop macro.
2246 (loc (and msg (compilation--message->loc msg)))
2247 last)
2248 (if (zerop n)
2249 (unless (or msg ; find message near here
2250 (setq msg (get-text-property (max (1- pt) (point-min))
2251 'compilation-message)))
2252 (setq pt (previous-single-property-change pt 'compilation-message nil
2253 (line-beginning-position)))
2254 (unless (setq msg (get-text-property (max (1- pt) (point-min))
2255 'compilation-message))
2256 (setq pt (next-single-property-change pt 'compilation-message nil
2257 (line-end-position)))
2258 (or (setq msg (get-text-property pt 'compilation-message))
2259 (setq pt (point)))))
2260 (setq last (compilation--loc->file-struct loc))
2261 (if (>= n 0)
2262 (compilation-loop > compilation-next-single-property-change 1-
2263 (if (get-buffer-process (current-buffer))
2264 "No more %ss yet"
2265 "Moved past last %s")
2266 (point-max))
2267 (compilation--ensure-parse pt)
2268 ;; Don't move "back" to message at or before point.
2269 ;; Pass an explicit (point-min) to make sure pt is non-nil.
2270 (setq pt (previous-single-property-change
2271 pt 'compilation-message nil (point-min)))
2272 (compilation-loop < previous-single-property-change 1+
2273 "Moved back before first %s" (point-min))))
2274 (goto-char pt)
2275 (or msg
2276 (error "No %s here" compilation-error))))
2278 (defun compilation-previous-error (n)
2279 "Move point to the previous error in the compilation buffer.
2280 Prefix arg N says how many error messages to move backwards (or
2281 forwards, if negative).
2283 (interactive "p")
2284 (compilation-next-error (- n)))
2286 (defun compilation-next-file (n)
2287 "Move point to the next error for a different file than the current one.
2288 Prefix arg N says how many files to move forwards (or backwards, if negative)."
2289 (interactive "p")
2290 (compilation-next-error n t))
2292 (defun compilation-previous-file (n)
2293 "Move point to the previous error for a different file than the current one.
2294 Prefix arg N says how many files to move backwards (or forwards, if negative)."
2295 (interactive "p")
2296 (compilation-next-file (- n)))
2298 (defun kill-compilation ()
2300 (interactive)
2301 (let ((buffer (compilation-find-buffer)))
2302 (if (get-buffer-process buffer)
2303 (interrupt-process (get-buffer-process buffer))
2304 (error "The %s process is not running" (downcase mode-name)))))
2306 (defalias 'compile-mouse-goto-error 'compile-goto-error)
2308 (defun compile-goto-error (&optional event)
2309 "Visit the source for the error message at point.
2310 Use this command in a compilation log buffer. Sets the mark at point there."
2311 (interactive (list last-input-event))
2312 (if event (posn-set-point (event-end event)))
2313 (or (compilation-buffer-p (current-buffer))
2314 (error "Not in a compilation buffer"))
2315 (compilation--ensure-parse (point))
2316 (if (get-text-property (point) 'compilation-directory)
2317 (dired-other-window
2318 (car (get-text-property (point) 'compilation-directory)))
2319 (push-mark)
2320 (setq compilation-current-error (point))
2321 (next-error-internal)))
2323 ;; This is mostly unused, but we keep it for the sake of some external
2324 ;; packages which seem to make use of it.
2325 (defun compilation-find-buffer (&optional avoid-current)
2326 "Return a compilation buffer.
2327 If AVOID-CURRENT is nil, and the current buffer is a compilation buffer,
2328 return it. If AVOID-CURRENT is non-nil, return the current buffer only
2329 as a last resort."
2330 (if (and (compilation-buffer-internal-p) (not avoid-current))
2331 (current-buffer)
2332 (next-error-find-buffer avoid-current 'compilation-buffer-internal-p)))
2334 ;;;###autoload
2335 (defun compilation-next-error-function (n &optional reset)
2336 "Advance to the next error message and visit the file where the error was.
2337 This is the value of `next-error-function' in Compilation buffers."
2338 (interactive "p")
2339 (when reset
2340 (setq compilation-current-error nil))
2341 (let* ((screen-columns compilation-error-screen-columns)
2342 (first-column compilation-first-column)
2343 (last 1)
2344 (msg (compilation-next-error (or n 1) nil
2345 (or compilation-current-error
2346 compilation-messages-start
2347 (point-min))))
2348 (loc (compilation--message->loc msg))
2349 (end-loc (compilation--message->end-loc msg))
2350 (marker (point-marker)))
2351 (setq compilation-current-error (point-marker)
2352 overlay-arrow-position
2353 (if (bolp)
2354 compilation-current-error
2355 (copy-marker (line-beginning-position))))
2356 ;; If loc contains no marker, no error in that file has been visited.
2357 ;; If the marker is invalid the buffer has been killed.
2358 ;; So, recalculate all markers for that file.
2359 (unless (and (compilation--loc->marker loc)
2360 (marker-buffer (compilation--loc->marker loc))
2361 ;; FIXME-omake: For "omake -P", which automatically recompiles
2362 ;; when the file is modified, the line numbers of new output
2363 ;; may not be related to line numbers from earlier output
2364 ;; (earlier markers), so we used to try to detect it here and
2365 ;; force a reparse. But that caused more problems elsewhere,
2366 ;; so instead we now flush the file-structure when we see
2367 ;; omake's message telling it's about to recompile a file.
2368 ;; (or (null (compilation--loc->timestamp loc)) ;A fake-loc
2369 ;; (equal (compilation--loc->timestamp loc)
2370 ;; (setq timestamp compilation-buffer-modtime)))
2371 )
2372 (with-current-buffer
2373 (compilation-find-file
2374 marker
2375 (caar (compilation--loc->file-struct loc))
2376 (cadr (car (compilation--loc->file-struct loc))))
2377 (let ((screen-columns
2378 ;; Obey the compilation-error-screen-columns of the target
2379 ;; buffer if its major mode set it buffer-locally.
2380 (if (local-variable-p 'compilation-error-screen-columns)
2381 compilation-error-screen-columns screen-columns))
2382 (compilation-first-column
2383 (if (local-variable-p 'compilation-first-column)
2384 compilation-first-column first-column)))
2385 (save-restriction
2386 (widen)
2387 (goto-char (point-min))
2388 ;; Treat file's found lines in forward order, 1 by 1.
2389 (dolist (line (reverse (cddr (compilation--loc->file-struct loc))))
2390 (when (car line) ; else this is a filename w/o a line#
2391 (beginning-of-line (- (car line) last -1))
2392 (setq last (car line)))
2393 ;; Treat line's found columns and store/update a marker for each.
2394 (dolist (col (cdr line))
2395 (if (compilation--loc->col col)
2396 (if (eq (compilation--loc->col col) -1)
2397 ;; Special case for range end.
2398 (end-of-line)
2399 (compilation-move-to-column (compilation--loc->col col)
2400 screen-columns))
2401 (beginning-of-line)
2403 (if (compilation--loc->marker col)
2404 (set-marker (compilation--loc->marker col) (point))
2405 (setf (compilation--loc->marker col) (point-marker)))
2406 ;; (setf (compilation--loc->timestamp col) timestamp)
2407 ))))))
2408 (compilation-goto-locus marker (compilation--loc->marker loc)
2409 (compilation--loc->marker end-loc))
2410 (setf (compilation--loc->visited loc) t)))
2412 (defvar compilation-gcpro nil
2413 "Internal variable used to keep some values from being GC'd.")
2414 (make-variable-buffer-local 'compilation-gcpro)
2416 (defun compilation-fake-loc (marker file &optional line col)
2417 "Preassociate MARKER with FILE.
2418 FILE should be ABSOLUTE-FILENAME or (RELATIVE-FILENAME . DIRNAME).
2419 This is useful when you compile temporary files, but want
2420 automatic translation of the messages to the real buffer from
2421 which the temporary file came. This may also affect previous messages
2422 about FILE.
2424 Optional args LINE and COL default to 1 and beginning of
2425 indentation respectively. The marker is expected to reflect
2426 this. In the simplest case the marker points to the first line
2427 of the region that was saved to the temp file.
2429 If you concatenate several regions into the temp file (e.g. a
2430 header with variable assignments and a code region), you must
2431 call this several times, once each for the last line of one
2432 region and the first line of the next region."
2433 (or (consp file) (setq file (list file)))
2434 (compilation--flush-file-structure file)
2435 (let ((fs (compilation-get-file-structure file)))
2436 ;; Between the current call to compilation-fake-loc and the first
2437 ;; occurrence of an error message referring to `file', the data is
2438 ;; only kept in the weak hash-table compilation-locs, so we need
2439 ;; to prevent this entry in compilation-locs from being GC'd
2440 ;; away. --Stef
2441 (push fs compilation-gcpro)
2442 (let ((loc (compilation-assq (or line 1) (cdr fs))))
2443 (setq loc (compilation-assq col loc))
2444 (cl-assert (null (cdr loc)))
2445 (setcdr loc (compilation--make-cdrloc line fs marker))
2446 loc)))
2448 (defcustom compilation-context-lines nil
2449 "Display this many lines of leading context before the current message.
2450 If nil and the left fringe is displayed, don't scroll the
2451 compilation output window; an arrow in the left fringe points to
2452 the current message. If nil and there is no left fringe, the message
2453 displays at the top of the window; there is no arrow."
2454 :type '(choice integer (const :tag "No window scrolling" nil))
2455 :group 'compilation
2456 :version "22.1")
2458 (defsubst compilation-set-window (w mk)
2459 "Align the compilation output window W with marker MK near top."
2460 (if (integerp compilation-context-lines)
2461 (set-window-start w (save-excursion
2462 (goto-char mk)
2463 (beginning-of-line
2464 (- 1 compilation-context-lines))
2465 (point)))
2466 ;; If there is no left fringe.
2467 (if (equal (car (window-fringes)) 0)
2468 (set-window-start w (save-excursion
2469 (goto-char mk)
2470 (beginning-of-line 1)
2471 (point)))))
2472 (set-window-point w mk))
2474 (defvar next-error-highlight-timer)
2476 (defun compilation-goto-locus (msg mk end-mk)
2477 "Jump to an error corresponding to MSG at MK.
2478 All arguments are markers. If END-MK is non-nil, mark is set there
2479 and overlay is highlighted between MK and END-MK."
2480 ;; Show compilation buffer in other window, scrolled to this error.
2481 (let* ((from-compilation-buffer (eq (window-buffer (selected-window))
2482 (marker-buffer msg)))
2483 ;; Use an existing window if it is in a visible frame.
2484 (pre-existing (get-buffer-window (marker-buffer msg) 0))
2485 (w (if (and from-compilation-buffer pre-existing)
2486 ;; Calling display-buffer here may end up (partly) hiding
2487 ;; the error location if the two buffers are in two
2488 ;; different frames. So don't do it if it's not necessary.
2489 pre-existing
2490 (display-buffer (marker-buffer msg))))
2491 (highlight-regexp (with-current-buffer (marker-buffer msg)
2492 ;; also do this while we change buffer
2493 (compilation-set-window w msg)
2494 compilation-highlight-regexp)))
2495 ;; Ideally, the window-size should be passed to `display-buffer'
2496 ;; so it's only used when creating a new window.
2497 (unless pre-existing (compilation-set-window-height w))
2499 (if from-compilation-buffer
2500 ;; If the compilation buffer window was selected,
2501 ;; keep the compilation buffer in this window;
2502 ;; display the source in another window.
2503 (let ((pop-up-windows t))
2504 (pop-to-buffer (marker-buffer mk) 'other-window))
2505 (switch-to-buffer (marker-buffer mk)))
2506 (unless (eq (goto-char mk) (point))
2507 ;; If narrowing gets in the way of going to the right place, widen.
2508 (widen)
2509 (if next-error-move-function
2510 (funcall next-error-move-function msg mk)
2511 (goto-char mk)))
2512 (if end-mk
2513 (push-mark end-mk t)
2514 (if mark-active (setq mark-active)))
2515 ;; If hideshow got in the way of
2516 ;; seeing the right place, open permanently.
2517 (dolist (ov (overlays-at (point)))
2518 (when (eq 'hs (overlay-get ov 'invisible))
2519 (delete-overlay ov)
2520 (goto-char mk)))
2522 (when highlight-regexp
2523 (if (timerp next-error-highlight-timer)
2524 (cancel-timer next-error-highlight-timer))
2525 (unless compilation-highlight-overlay
2526 (setq compilation-highlight-overlay
2527 (make-overlay (point-min) (point-min)))
2528 (overlay-put compilation-highlight-overlay 'face 'next-error))
2529 (with-current-buffer (marker-buffer mk)
2530 (save-excursion
2531 (if end-mk (goto-char end-mk) (end-of-line))
2532 (let ((end (point)))
2533 (if mk (goto-char mk) (beginning-of-line))
2534 (if (and (stringp highlight-regexp)
2535 (re-search-forward highlight-regexp end t))
2536 (progn
2537 (goto-char (match-beginning 0))
2538 (move-overlay compilation-highlight-overlay
2539 (match-beginning 0) (match-end 0)
2540 (current-buffer)))
2541 (move-overlay compilation-highlight-overlay
2542 (point) end (current-buffer)))
2543 (if (or (eq next-error-highlight t)
2544 (numberp next-error-highlight))
2545 ;; We want highlighting: delete overlay on next input.
2546 (add-hook 'pre-command-hook
2547 'compilation-goto-locus-delete-o)
2548 ;; We don't want highlighting: delete overlay now.
2549 (delete-overlay compilation-highlight-overlay))
2550 ;; We want highlighting for a limited time:
2551 ;; set up a timer to delete it.
2552 (when (numberp next-error-highlight)
2553 (setq next-error-highlight-timer
2554 (run-at-time next-error-highlight nil
2555 'compilation-goto-locus-delete-o)))))))
2556 (when (and (eq next-error-highlight 'fringe-arrow))
2557 ;; We want a fringe arrow (instead of highlighting).
2558 (setq next-error-overlay-arrow-position
2559 (copy-marker (line-beginning-position))))))
2561 (defun compilation-goto-locus-delete-o ()
2562 (delete-overlay compilation-highlight-overlay)
2563 ;; Get rid of timer and hook that would try to do this again.
2564 (if (timerp next-error-highlight-timer)
2565 (cancel-timer next-error-highlight-timer))
2566 (remove-hook 'pre-command-hook
2567 'compilation-goto-locus-delete-o))
2568 \f
2569 (defun compilation-find-file (marker filename directory &rest formats)
2570 "Find a buffer for file FILENAME.
2571 If FILENAME is not found at all, ask the user where to find it.
2572 Pop up the buffer containing MARKER and scroll to MARKER if we ask
2573 the user where to find the file.
2574 Search the directories in `compilation-search-path'.
2575 A nil in `compilation-search-path' means to try the
2577 If DIRECTORY is relative, it is combined with `default-directory'.
2578 If DIRECTORY is nil, that means use `default-directory'.
2579 FORMATS, if given, is a list of formats to reformat FILENAME when
2580 looking for it: for each element FMT in FORMATS, this function
2581 attempts to find a file whose name is produced by (format FMT FILENAME)."
2582 (or formats (setq formats '("%s")))
2583 (let ((dirs compilation-search-path)
2584 (spec-dir (if directory
2585 (expand-file-name directory)
2586 default-directory))
2587 buffer thisdir fmts name)
2588 (if (file-name-absolute-p filename)
2589 ;; The file name is absolute. Use its explicit directory as
2590 ;; the first in the search path, and strip it from FILENAME.
2591 (setq filename (abbreviate-file-name (expand-file-name filename))
2592 dirs (cons (file-name-directory filename) dirs)
2593 filename (file-name-nondirectory filename)))
2594 ;; Now search the path.
2595 (while (and dirs (null buffer))
2596 (setq thisdir (or (car dirs) spec-dir)
2597 fmts formats)
2598 ;; For each directory, try each format string.
2599 (while (and fmts (null buffer))
2600 (setq name (expand-file-name (format (car fmts) filename) thisdir)
2601 buffer (and (file-exists-p name)
2602 (find-file-noselect name))
2603 fmts (cdr fmts)))
2604 (setq dirs (cdr dirs)))
2605 (while (null buffer) ;Repeat until the user selects an existing file.
2606 ;; The file doesn't exist. Ask the user where to find it.
2607 (save-excursion ;This save-excursion is probably not right.
2608 (let ((pop-up-windows t))
2609 (compilation-set-window (display-buffer (marker-buffer marker))
2610 marker)
2611 (let* ((name (read-file-name
2612 (format "Find this %s in (default %s): "
2613 compilation-error filename)
2614 spec-dir filename t nil
2615 ;; The predicate below is fine when called from
2616 ;; minibuffer-complete-and-exit, but it's too
2617 ;; restrictive otherwise, since it also prevents the
2618 ;; user from completing "fo" to "foo/" when she
2619 ;; wants to enter "foo/bar".
2620 ;;
2621 ;; Try to make sure the user can only select
2622 ;; a valid answer. This predicate may be ignored,
2623 ;; tho, so we still have to double-check afterwards.
2624 ;; TODO: We should probably fix read-file-name so
2625 ;; that it never ignores this predicate, even when
2626 ;; using popup dialog boxes.
2627 ;; (lambda (name)
2628 ;; (if (file-directory-p name)
2629 ;; (setq name (expand-file-name filename name)))
2630 ;; (file-exists-p name))
2631 ))
2632 (origname name))
2633 (cond
2634 ((not (file-exists-p name))
2635 (message "Cannot find file `%s'" name)
2636 (ding) (sit-for 2))
2637 ((and (file-directory-p name)
2638 (not (file-exists-p
2639 (setq name (expand-file-name filename name)))))
2640 (message "No `%s' in directory %s" filename origname)
2641 (ding) (sit-for 2))
2642 (t
2643 (setq buffer (find-file-noselect name))))))))
2644 ;; Make intangible overlays tangible.
2645 ;; This is weird: it's not even clear which is the current buffer,
2646 ;; so the code below can't be expected to DTRT here. -- Stef
2647 (dolist (ov (overlays-in (point-min) (point-max)))
2648 (when (overlay-get ov 'intangible)
2649 (overlay-put ov 'intangible nil)))
2650 buffer))
2652 (defun compilation-get-file-structure (file &optional fmt)
2653 "Retrieve FILE's file-structure or create a new one.
2654 FILE should be (FILENAME) or (RELATIVE-FILENAME . DIRNAME).
2655 In the former case, FILENAME may be relative or absolute.
2657 The file-structure looks like this:
2658 ((FILENAME [DIR-FROM-PREV-MSG]) FMT LINE-STRUCT...)"
2659 (or (gethash file compilation-locs)
2660 ;; File was not previously encountered, at least not in the form passed.
2661 ;; Let's normalize it and look again.
2662 (let ((filename (car file))
2663 ;; Get the specified directory from FILE.
2664 (spec-directory (if (cdr file)
2665 (file-truename (cdr file)))))
2667 ;; Check for a comint-file-name-prefix and prepend it if appropriate.
2668 ;; (This is very useful for compilation-minor-mode in an rlogin-mode
2669 ;; buffer.)
2670 (when (and (boundp 'comint-file-name-prefix)
2671 (not (equal comint-file-name-prefix "")))
2672 (if (file-name-absolute-p filename)
2673 (setq filename
2674 (concat comint-file-name-prefix filename))
2675 (if spec-directory
2676 (setq spec-directory
2677 (file-truename
2678 (concat comint-file-name-prefix spec-directory))))))
2680 ;; If compilation-parse-errors-filename-function is
2681 ;; defined, use it to process the filename.
2682 (when compilation-parse-errors-filename-function
2683 (setq filename
2684 (funcall compilation-parse-errors-filename-function
2685 filename)))
2687 ;; Some compilers (e.g. Sun's java compiler, reportedly) produce bogus
2688 ;; file names like "./bar//foo.c" for file "bar/foo.c";
2689 ;; expand-file-name will collapse these into "/foo.c" and fail to find
2690 ;; the appropriate file. So we look for doubled slashes in the file
2691 ;; name and fix them.
2692 (setq filename (command-line-normalize-file-name filename))
2694 ;; Store it for the possibly unnormalized name
2695 (puthash file
2696 ;; Retrieve or create file-structure for normalized name
2697 ;; The gethash used to not use spec-directory, but
2698 ;; this leads to errors when files in different
2699 ;; directories have the same name:
2700 ;; http://lists.gnu.org/archive/html/emacs-devel/2007-08/msg00463.html
2701 (or (gethash (cons filename spec-directory) compilation-locs)
2702 (puthash (cons filename spec-directory)
2703 (compilation--make-file-struct
2704 (list filename spec-directory) fmt)
2705 compilation-locs))
2706 compilation-locs))))
2708 (defun compilation--flush-file-structure (file)
2709 (or (consp file) (setq file (list file)))
2710 (let ((fs (compilation-get-file-structure file)))
2711 (cl-assert (eq fs (gethash file compilation-locs)))
2712 (cl-assert (eq fs (gethash (cons (caar fs) (cadr (car fs)))
2713 compilation-locs)))
2714 (maphash (lambda (k v)
2715 (if (eq v fs) (remhash k compilation-locs)))
2716 compilation-locs)))
2718 ;;; Compatibility with the old compile.el.
2720 (defvaralias 'compilation-last-buffer 'next-error-last-buffer)
2721 (defvar compilation-parsing-end (make-marker))
2722 (defvar compilation-error-list nil)
2723 (defvar compilation-old-error-list nil)
2725 (defun compilation--compat-error-properties (err)
2726 "Map old-style error ERR to new-style message."
2727 ;; Old-style structure is (MARKER (FILE DIR) LINE COL) or
2728 ;; (MARKER . MARKER).
2729 (let ((dst (cdr err)))
2730 (if (markerp dst)
2731 `(compilation-message ,(compilation--make-message
2732 (cons nil (compilation--make-cdrloc
2733 nil nil dst))
2734 2 nil)
2735 help-echo "mouse-2: visit the source location"
2736 keymap compilation-button-map
2737 mouse-face highlight)
2738 ;; Too difficult to do it by hand: dispatch to the normal code.
2739 (let* ((file (pop dst))
2740 (line (pop dst))
2741 (col (pop dst))
2742 (filename (pop file))
2743 (dirname (pop file))
2744 (fmt (pop file)))
2745 (compilation-internal-error-properties
2746 (cons filename dirname) line nil col nil 2 fmt)))))
2748 (defun compilation--compat-parse-errors (limit)
2749 (when compilation-parse-errors-function
2750 ;; FIXME: We should remove the rest of the compilation keywords
2751 ;; but we can't do that from here because font-lock is using
2752 ;; the value right now. --Stef
2753 (save-excursion
2754 (setq compilation-error-list nil)
2755 ;; Reset compilation-parsing-end each time because font-lock
2756 ;; might force us the re-parse many times (typically because
2757 ;; some code adds some text-property to the output that we
2758 ;; already parsed). You might say "why reparse", well:
2759 ;; because font-lock has just removed the `compilation-message' property
2760 ;; so have to do it all over again.
2761 (if compilation-parsing-end
2762 (set-marker compilation-parsing-end (point))
2763 (setq compilation-parsing-end (point-marker)))
2764 (condition-case nil
2765 ;; Ignore any error: we're calling this function earlier than
2766 ;; in the old compile.el so things might not all be setup yet.
2767 (funcall compilation-parse-errors-function limit nil)
2768 (error nil))
2769 (dolist (err (if (listp compilation-error-list) compilation-error-list))
2770 (let* ((src (car err))
2771 (dst (cdr err))
2772 (loc (cond ((markerp dst)
2773 (cons nil
2774 (compilation--make-cdrloc nil nil dst)))
2775 ((consp dst)
2776 (cons (nth 2 dst)
2777 (compilation--make-cdrloc
2778 (nth 1 dst)
2779 (cons (cdar dst) (caar dst))
2780 nil))))))
2781 (when loc
2782 (goto-char src)
2783 ;; (put-text-property src (line-end-position)
2784 ;; 'font-lock-face 'font-lock-warning-face)
2785 (put-text-property src (line-end-position)
2786 'compilation-message
2787 (compilation--make-message loc 2 nil)))))))
2788 (goto-char limit)
2789 nil)
2791 ;; Beware! this is not only compatibility code. New code also uses it. --Stef
2792 (defun compilation-forget-errors ()
2793 ;; In case we hit the same file/line specs, we want to recompute a new
2794 ;; marker for them, so flush our cache.
2795 (clrhash compilation-locs)
2796 (setq compilation-gcpro nil)
2797 ;; FIXME: the old code reset the directory-stack, so maybe we should
2798 ;; put a `directory change' marker of some sort, but where? -stef
2799 ;;
2800 ;; FIXME: The old code moved compilation-current-error (which was
2801 ;; virtually represented by a mix of compilation-parsing-end and
2802 ;; compilation-error-list) to point-min, but that was only meaningful for
2803 ;; the internal uses of compilation-forget-errors: all calls from external
2804 ;; packages seem to be followed by a move of compilation-parsing-end to
2805 ;; something equivalent to point-max. So we heuristically move
2806 ;; compilation-current-error to point-max (since the external package
2807 ;; won't know that it should do it). --Stef
2808 (setq compilation-current-error nil)
2809 (let* ((proc (get-buffer-process (current-buffer)))
2810 (mark (if proc (process-mark proc)))
2811 (pos (or mark (point-max))))
2812 (setq compilation-messages-start
2813 ;; In the future, ignore the text already present in the buffer.
2814 ;; Since many process filter functions insert before markers,
2815 ;; we need to put ours just before the insertion point rather
2816 ;; than at the insertion point. If that's not possible, then
2817 ;; don't use a marker. --Stef
2818 (if (> pos (point-min)) (copy-marker (1- pos)) pos)))
2819 ;; Again, since this command is used in buffers that contain several
2820 ;; compilations, to set the beginning of "this compilation", it's a good
2821 ;; place to reset compilation-auto-jump-to-next.
2822 (set (make-local-variable 'compilation-auto-jump-to-next)
2823 (or compilation-auto-jump-to-first-error
2824 (eq compilation-scroll-output 'first-error))))
2826 (provide 'compile)
2828 ;;; compile.el ends here