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* lisp/info.el (Info-find-file): Go to DIR before displaying the error

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about a nonexistent file if no previous Info file is visited.
Use `user-error' instead of `error' for "Info file %s does not exist".
(Info-find-node-2): In case of a nonexistent node in unwind forms
go to the Top node if there is no previous node to revert to.

Fixes: debbugs:16405
This commit is contained in:
Juri Linkov 2014-01-13 10:04:09 +02:00
parent 25a700d0fd
commit 3c0c4562d1
2 changed files with 21 additions and 7 deletions
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9
lisp/ChangeLog
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@ -1,3 +1,12 @@
2014-01-13 Juri Linkov <juri@jurta.org>
* info.el (Info-find-file): Go to DIR before displaying the error
about a nonexistent file if no previous Info file is visited.
Use `user-error' instead of `error' for "Info file %s does not exist".
(Info-find-node-2): In case of a nonexistent node in unwind forms
go to the Top node if there is no previous node to revert to.
(Bug#16405)
2014-01-13 Martin Rudalics <rudalics@gmx.at>
fit-frame/window-to-buffer code fixes including one for Bug#14096.

19
lisp/info.el
View File

@ -925,7 +925,10 @@ just return nil (no error)."
(setq filename found)
(if noerror
(setq filename nil)
(error "Info file %s does not exist" filename)))
;; If there is no previous Info file, go to the directory.
(unless Info-current-file
(Info-directory))
(user-error "Info file %s does not exist" filename)))
filename))))
(defun Info-find-node (filename nodename &optional no-going-back strict-case)
@ -1245,12 +1248,14 @@ is non-nil)."
(Info-find-index-name Info-point-loc)
(setq Info-point-loc nil))))))
;; If we did not finish finding the specified node,
;; go back to the previous one.
(or Info-current-node no-going-back (null Info-history)
(let ((hist (car Info-history)))
(setq Info-history (cdr Info-history))
(Info-find-node (nth 0 hist) (nth 1 hist) t)
(goto-char (nth 2 hist))))))
;; go back to the previous one or to the Top node.
(unless (or Info-current-node no-going-back)
(if Info-history
(let ((hist (car Info-history)))
(setq Info-history (cdr Info-history))
(Info-find-node (nth 0 hist) (nth 1 hist) t)
(goto-char (nth 2 hist)))
(Info-find-node Info-current-file "Top" t)))))
;; Cache the contents of the (virtual) dir file, once we have merged
;; it for the first time, so we can save time subsequently.