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Re: regexp stack overflow
On Tue, Jan 31, 2006 at 04:35:11PM +0900, Katsumi Yamaoka wrote:
> it. Could you send a Lisp backtrace? To do that, run
> `M-x toggle-debug-on-error' before the error occurs, and include
> the contents of the "*Backtrace*" buffer in an email.
Thanks! I didn't know about toggle-debug-on-error.
Wow, it appears that TWiki is sending the entire page text as part of
the URL when submitting changes to a page:
Debugger entered--Lisp error: (error "Stack overflow in regexp matcher")
string-match("\\`\\(\\([^:/?#]+\\):\\)?\\(//\\([^/?#]*\\)\\)?\\([^?#]*\\)\\(\\?\\([^#]*\\)\\)?\\(#\\(.*\\)\\)?\\'" "http://wiki/bin/preview/Main/BigWikiPage?text=---%2B%20Big%20Wiki%20Page%0D%0A%0D%0A [and so on, tens of kb of text ]
w3m-expand-url("http://wiki/bin/preview/Main/BigWikiPage?text= [same here]
w3m-create-text-page("http://wiki/bin/preview/Main/BigWikiPage" "text/html" "ISO-8859-1" #<buffer *w3m*>)
so wherever W3M-URL-COMPONENTS-REGEXP is used I get in trouble. One
could probably re-write this code so that it doesn't use a regexp.
However, maybe it's just a problem with my particular emacs version
(21.2.1) or even the text I'm trying to match:
For now, I just added this nasty kludge, which works only for me of
(defun w3m-expand-url (url &optional base)
"Convert URL to the absolute address, and canonicalize it."
(if (and (> (length url) 23)
(string= (substring url 0 23)
[ original function body goes here ]
Thanks for your help,