;;; grep.el --- run Grep as inferior of Emacs, parse match messages
-;; Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-;; 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+;; Copyright (C) 1985-1987, 1993-1999, 2001-2011
;; Free Software Foundation, Inc.
;; Author: Roland McGrath <roland@gnu.org>
Some grep programs are able to surround matches with special
markers in grep output. Such markers can be used to highlight
-matches in grep mode.
+matches in grep mode. This requires `font-lock-mode' to be active
+in grep buffers, so if you have globally disabled font-lock-mode,
+you will not get highlighting.
This option sets the environment variable GREP_COLORS to specify
markers for highlighting and GREP_OPTIONS to add the --color
;;;###autoload
(defconst grep-regexp-alist
- '(("^\\(.+?\\)\\(:[ \t]*\\)\\([0-9]+\\)\\2"
+ '(("^\\(.+?\\)\\(:[ \t]*\\)\\([1-9][0-9]*\\)\\2"
1 3)
;; Rule to match column numbers is commented out since no known grep
;; produces them
;; ("^\\(.+?\\)\\(:[ \t]*\\)\\([0-9]+\\)\\2\\(?:\\([0-9]+\\)\\(?:-\\([0-9]+\\)\\)?\\2\\)?"
;; 1 3 (4 . 5))
- ("^\\(\\(.+?\\):\\([0-9]+\\):\\).*?\
+ ;; Note that we want to use as tight a regexp as we can to try and
+ ;; handle weird file names (with colons in them) as well as possible.
+ ;; E.g. we use [1-9][0-9]* rather than [0-9]+ so as to accept ":034:" in
+ ;; file names.
+ ("^\\(\\(.+?\\):\\([1-9][0-9]*\\):\\).*?\
\\(\033\\[01;31m\\(?:\033\\[K\\)?\\)\\(.*?\\)\\(\033\\[[0-9]*m\\)"
2 3
;; Calculate column positions (beg . end) of first grep match on a line
(- (match-beginning 4) (match-end 1)))
.
(lambda () (- (match-end 5) (match-end 1)
- (- (match-end 4) (match-beginning 4)))))
+ (- (match-end 4) (match-beginning 4)))))
nil 1)
("^Binary file \\(.+\\) matches$" 1 nil nil 0 1))
"Regexp used to match grep hits. See `compilation-error-regexp-alist'.")
(defvar grep-mode-font-lock-keywords
'(;; Command output lines.
- ("^\\([A-Za-z_0-9/\.+-]+\\)[ \t]*:" 1 font-lock-function-name-face)
(": \\(.+\\): \\(?:Permission denied\\|No such \\(?:file or directory\\|device or address\\)\\)$"
1 grep-error-face)
;; remove match from grep-regexp-alist before fontifying
("^Grep[/a-zA-z]* started.*"
- (0 '(face nil message nil help-echo nil mouse-face nil) t))
+ (0 '(face nil compilation-message nil help-echo nil mouse-face nil) t))
("^Grep[/a-zA-z]* finished \\(?:(\\(matches found\\))\\|with \\(no matches found\\)\\).*"
- (0 '(face nil message nil help-echo nil mouse-face nil) t)
+ (0 '(face nil compilation-message nil help-echo nil mouse-face nil) t)
(1 compilation-info-face nil t)
(2 compilation-warning-face nil t))
("^Grep[/a-zA-z]* \\(exited abnormally\\|interrupt\\|killed\\|terminated\\)\\(?:.*with code \\([0-9]+\\)\\)?.*"
- (0 '(face nil message nil help-echo nil mouse-face nil) t)
+ (0 '(face nil compilation-message nil help-echo nil mouse-face nil) t)
(1 grep-error-face)
(2 grep-error-face nil t))
("^.+?-[0-9]+-.*\n" (0 grep-context-face))
- ;; Highlight grep matches and delete markers
+ ;; Highlight grep matches and delete markers.
+ ;; FIXME: Modifying the buffer text from font-lock is a bad idea!
("\\(\033\\[01;31m\\)\\(.*?\\)\\(\033\\[[0-9]*m\\)"
;; Refontification does not work after the markers have been
;; deleted. So we use the font-lock-face property here as Font
(progn
;; Delete markers with `replace-match' because it updates
;; the match-data, whereas `delete-region' would render it obsolete.
+ (syntax-ppss-flush-cache (match-beginning 0))
(replace-match "" t t nil 3)
(replace-match "" t t nil 1))))
- ("\\(\033\\[[0-9;]*[mK]\\)"
+ ("\033\\[[0-9;]*[mK]"
;; Delete all remaining escape sequences
((lambda (bound))
- (replace-match "" t t nil 1))))
+ (syntax-ppss-flush-cache (match-beginning 0))
+ (replace-match "" t t))))
"Additional things to highlight in grep output.
This gets tacked on the end of the generated expressions.")
(when (eq grep-highlight-matches 'auto-detect)
(grep-compute-defaults))
(unless (or (eq grep-highlight-matches 'auto-detect)
+ ;; Uses font-lock to parse color escapes. (Bug#8084)
+ (null font-lock-mode)
(null grep-highlight-matches))
;; `setenv' modifies `process-environment' let-bound in `compilation-start'
;; Any TERM except "dumb" allows GNU grep to use `--color=auto'
(unless grep-find-command
(setq grep-find-command
(cond ((eq grep-find-use-xargs 'gnu)
- (format "%s . -type f -print0 | %s -0 -e %s"
+ ;; Windows shells need the program file name
+ ;; after the pipe symbol be quoted if they use
+ ;; forward slashes as directory separators.
+ (format "%s . -type f -print0 | \"%s\" -0 -e %s"
find-program xargs-program grep-command))
((eq grep-find-use-xargs 'exec)
(let ((cmd0 (format "%s . -type f -exec %s"
(shell-quote-argument ";"))
(1+ (length cmd0)))))
(t
- (format "%s . -type f -print | %s %s"
+ (format "%s . -type f -print | \"%s\" %s"
find-program xargs-program grep-command)))))
(unless grep-find-template
(setq grep-find-template
(let ((gcmd (format "%s <C> %s <R>"
grep-program grep-options)))
(cond ((eq grep-find-use-xargs 'gnu)
- (format "%s . <X> -type f <F> -print0 | %s -0 -e %s"
+ (format "%s . <X> -type f <F> -print0 | \"%s\" -0 -e %s"
find-program xargs-program gcmd))
((eq grep-find-use-xargs 'exec)
(format "%s . <X> -type f <F> -exec %s {} %s %s"
find-program gcmd null-device
(shell-quote-argument ";")))
(t
- (format "%s . <X> -type f <F> -print | %s %s"
+ (format "%s . <X> -type f <F> -print | \"%s\" %s"
find-program xargs-program gcmd))))))))
(when (eq grep-highlight-matches 'auto-detect)
(setq grep-highlight-matches
(provide 'grep)
-;; arch-tag: 5a5b9169-a79d-4f38-9c38-f69615f39c4d
;;; grep.el ends here
HCoop / bpt / emacs.git / blobdiff