nnrss-generate-download-script wrong-type-argument

nnrss-generate-download-script wrong-type-argument

[jidanni]

This file
  /home/jidanni/.emacs_:
  -rw-r--r-- 1 jidanni 44872 2008-02-13 10:17 nnrss.el
caused:
Debugger entered--Lisp error: (wrong-type-argument char-or-string-p nil)
  insert("$WGET -q -O \"$RSSDIR\"/'" "DreamHostDiscussion Board POSTS.xml" "' '" nil "'\n")
  (let ((url ...)) (insert "$WGET -q -O \"$RSSDIR\"/'" (nnrss-translate-file-chars ...) "' '" url "'\n"))
  (while --cl-dolist-temp-- (setq elem (car --cl-dolist-temp--)) (let (...) (insert "$WGET -q -O \"$RSSDIR\"/'" ... "' '" url "'\n")) (setq --cl-dolist-temp-- (cdr --cl-dolist-temp--)))
  (let ((--cl-dolist-temp-- nnrss-server-data) elem) (while --cl-dolist-temp-- (setq elem ...) (let ... ...) (setq --cl-dolist-temp-- ...)) nil)
  (catch (quote --cl-block-nil--) (let (... elem) (while --cl-dolist-temp-- ... ... ...) nil))
  (cl-block-wrapper (catch (quote --cl-block-nil--) (let ... ... nil)))
  (block nil (let (... elem) (while --cl-dolist-temp-- ... ... ...) nil))
  (dolist (elem nnrss-server-data) (let (...) (insert "$WGET -q -O \"$RSSDIR\"/'" ... "' '" url "'\n")))
  nnrss-generate-download-script()
  eval((nnrss-generate-download-script))
  repeat-complex-command(1)
  call-interactively(repeat-complex-command)

Re: nnrss-generate-download-script wrong-type-argument

[Ted Zlatanov]

On Fri, 12 Dec 2008 09:22:43 +0800 jidanni@jidanni.org wrote: 

j> This file
j>   /home/jidanni/.emacs_:
j>   -rw-r--r-- 1 jidanni 44872 2008-02-13 10:17 nnrss.el
j> caused:
j> Debugger entered--Lisp error: (wrong-type-argument char-or-string-p nil)
j>   insert("$WGET -q -O \"$RSSDIR\"/'" "DreamHostDiscussion Board POSTS.xml" "' '" nil "'\n")
j>   (let ((url ...)) (insert "$WGET -q -O \"$RSSDIR\"/'" (nnrss-translate-file-chars ...) "' '" url "'\n"))
j>   (while --cl-dolist-temp-- (setq elem (car --cl-dolist-temp--)) (let (...) (insert "$WGET -q -O \"$RSSDIR\"/'" ... "' '" url "'\n")) (setq --cl-dolist-temp-- (cdr --cl-dolist-temp--)))
j>   (let ((--cl-dolist-temp-- nnrss-server-data) elem) (while --cl-dolist-temp-- (setq elem ...) (let ... ...) (setq --cl-dolist-temp-- ...)) nil)
j>   (catch (quote --cl-block-nil--) (let (... elem) (while --cl-dolist-temp-- ... ... ...) nil))
j>   (cl-block-wrapper (catch (quote --cl-block-nil--) (let ... ... nil)))
j>   (block nil (let (... elem) (while --cl-dolist-temp-- ... ... ...) nil))
j>   (dolist (elem nnrss-server-data) (let (...) (insert "$WGET -q -O \"$RSSDIR\"/'" ... "' '" url "'\n")))
j>   nnrss-generate-download-script()
j>   eval((nnrss-generate-download-script))
j>   repeat-complex-command(1)
j>   call-interactively(repeat-complex-command)

In the function it turns out the URL is nil when it's to be inserted,
and it comes from nnrss-group-alist.  nnrss-group-alist is defined by
you, usually (seems like something DreamHost-related from the file
name).

Ted

Re: nnrss-generate-download-script wrong-type-argument

[jidanni]

It turns out that often, one's nnrss-server-data has accrued several
junk groups that do not have exact matches in nnrss-group-alist.

This will cause nnrss-generate-download-script to fail mid-sentence
upon stumbling upon one.

It should be more cautious, and skip over such items.

Better yet, there should be a way for the user to clean out such
zombies the proper way (instead of doing surgery on whatever deep dark
files store them behind gnus' back.)

Proof:
(let ((nnrss-group-alist '(
 ("DreamHost Discussion Board POSTS" "http://discussion.dreamhost.com/feeds/all_posts.rss" "EVERY post on the DreamHost Discussion Board!")
 ("DreamHost Discussion Board" "http://discussion.dreamhost.com/feeds/all_threads.rss" "All threads on the DreamHost Discussion Board!")
 ("訂閱苦勞 性別 的文章" "http://www.coolloud.org.tw/tag/%E6%80%A7%E5%88%A5/feed" "次頁面的list - tag")
 ("DebCentral" "http://debcentral.org/backend.php" "The Center for all things Debian based")))

(nnrss-server-data 
'(
 ("訂閱苦勞 性別 的文章" 116)
 ("DreamHost Discussion Board POSTS" 726)
 ("DreamHostDiscussion Board POSTS" 100) ;no corresponding entry. BOOM.
 ("DreamHost Discussion Board" 50)
 ("DebCentral" 25))))

(nnrss-generate-download-script)) ^X^E
#!/bin/sh
WGET=wget
RSSDIR='/home/jidanni/News/rss/'
$WGET -q -O "$RSSDIR"/'訂閱苦勞 性別 的文章.xml' 'http://www.coolloud.org.tw/tag/%E6%80%A7%E5%88%A5/feed'
$WGET -q -O "$RSSDIR"/'DreamHost Discussion Board POSTS.xml' 'http://discussion.dreamhost.com/feeds/all_posts.rss'
$WGET -q -O "$RSSDIR"/'DreamHostDiscussion Board POSTS.xml' '

Re: nnrss-generate-download-script wrong-type-argument

[Ted Zlatanov]

On Mon, 15 Dec 2008 11:30:31 +0800 jidanni@jidanni.org wrote: 

j> It turns out that often, one's nnrss-server-data has accrued several
j> junk groups that do not have exact matches in nnrss-group-alist.

j> This will cause nnrss-generate-download-script to fail mid-sentence
j> upon stumbling upon one.

j> It should be more cautious, and skip over such items.

Agreed, + a warning.

j> Better yet, there should be a way for the user to clean out such
j> zombies the proper way (instead of doing surgery on whatever deep
j> dark files store them behind gnus' back.)

nnrss, when loading, could find such problems and offer to eliminate
them.  Is that a good solution?  I'd rather not introduce a special new
command only 2 people will ever use.

Ted

j> Proof:
j> (let ((nnrss-group-alist '(
j>  ("DreamHost Discussion Board POSTS" "http://discussion.dreamhost.com/feeds/all_posts.rss" "EVERY post on the DreamHost Discussion Board!")
j>  ("DreamHost Discussion Board" "http://discussion.dreamhost.com/feeds/all_threads.rss" "All threads on the DreamHost Discussion Board!")
j>  ("訂閱苦勞 性別 的文章" "http://www.coolloud.org.tw/tag/%E6%80%A7%E5%88%A5/feed" "次頁面的list - tag")
j>  ("DebCentral" "http://debcentral.org/backend.php" "The Center for all things Debian based")))

j> (nnrss-server-data 
j> '(
j>  ("訂閱苦勞 性別 的文章" 116)
j>  ("DreamHost Discussion Board POSTS" 726)
j>  ("DreamHostDiscussion Board POSTS" 100) ;no corresponding entry. BOOM.
j>  ("DreamHost Discussion Board" 50)
j>  ("DebCentral" 25))))

j> (nnrss-generate-download-script)) ^X^E
j> #!/bin/sh
j> WGET=wget
j> RSSDIR='/home/jidanni/News/rss/'
j> $WGET -q -O "$RSSDIR"/'訂閱苦勞 性別 的文章.xml' 'http://www.coolloud.org.tw/tag/%E6%80%A7%E5%88%A5/feed'
j> $WGET -q -O "$RSSDIR"/'DreamHost Discussion Board POSTS.xml' 'http://discussion.dreamhost.com/feeds/all_posts.rss'
j> $WGET -q -O "$RSSDIR"/'DreamHostDiscussion Board POSTS.xml' '

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