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bug#15701: [PATCH] octave-mode: Handle empty lookfor result.
From: |
Rüdiger Sonderfeld |
Subject: |
bug#15701: [PATCH] octave-mode: Handle empty lookfor result. |
Date: |
Thu, 24 Oct 2013 18:58:53 +0200 |
User-agent: |
KMail/4.11.2 (Linux/3.11.0-12-generic; KDE/4.11.2; x86_64; ; ) |
* lisp/progmodes/octave.el (octave-lookfor): Handle empty lookfor
result. Ask user to retry using '-all' flag.
Signed-off-by: Rüdiger Sonderfeld <ruediger@c-plusplus.de>
---
lisp/progmodes/octave.el | 22 +++++++++++++++++-----
1 file changed, 17 insertions(+), 5 deletions(-)
diff --git a/lisp/progmodes/octave.el b/lisp/progmodes/octave.el
index 899bf15..1803ea6 100644
--- a/lisp/progmodes/octave.el
+++ b/lisp/progmodes/octave.el
@@ -1724,20 +1724,32 @@ (defun octave-lookfor (str &optional all)
(if all "'-all', " "")
str)))
(let ((lines inferior-octave-output-list))
- (when (string-match "error: \\(.*\\)$" (car lines))
+ (when (and (stringp (car lines))
+ (string-match "error: \\(.*\\)$" (car lines)))
(error "%s" (match-string 1 (car lines))))
(with-help-window octave-help-buffer
- (princ (mapconcat 'identity lines "\n"))
(with-current-buffer octave-help-buffer
+ (if lines
+ (insert (mapconcat 'identity lines "\n"))
+ (insert (format "Nothing found for \"%s\".\n" str)))
;; Bound to t so that `help-buffer' returns current buffer for
;; `help-setup-xref'.
(let ((help-xref-following t))
(help-setup-xref (list 'octave-lookfor str all)
(called-interactively-p 'interactive)))
(goto-char (point-min))
- (while (re-search-forward "^\\([^[:blank:]]+\\) " nil 'noerror)
- (make-text-button (match-beginning 1) (match-end 1)
- :type 'octave-help-function))
+ (when lines
+ (while (re-search-forward "^\\([^[:blank:]]+\\) " nil 'noerror)
+ (make-text-button (match-beginning 1) (match-end 1)
+ :type 'octave-help-function)))
+ (unless all
+ (goto-char (point-max))
+ (insert "\nRetry with ")
+ (insert-text-button "'-all'"
+ 'follow-link t
+ 'action #'(lambda (b)
+ (octave-lookfor str '-all)))
+ (insert ".\n"))
(octave-help-mode)))))
(defcustom octave-source-directories nil
--
1.8.4
- bug#15701: [PATCH] octave-mode: Handle empty lookfor result.,
Rüdiger Sonderfeld <=