Hi,
While trying to build a parse tree list using CREATE-SCANNER, in the attempts after first 2-3 tries, below code exhausts the whole system memory and halts the system.
(defparameter *markup-transformations* (loop for (element syntax) on (list ;; Link formatting. :link-internal "\[\[" :link-external "\[http://" :link-external "\[https://" :link-external "\[ftp://" ;; Text formatting. :text-italic-bold "'''''" :text-italic "'''" :text-bold "''" :text-underline "\_\_" :text-monospace "`" :text-superscript "\^" :text-subscript ",," ;; Formattings requiring a fresh line. :header-3 "\n=== " :header-2 "\n== " :header-1 "\n= " :code-start "\n{{{" :code-end "\n}}}" :blockquote "\n ") by #'cddr collect (list element (cl-ppcre:create-scanner (string-append "^" syntax)))))
After 15 minutes, still no OOM reactions. (SBCL 1.0.6) So I needed restart the machine. (And therefore, I cannot narrow down the problematic part of the code by bisectioning.) Do you have any ideas about the erronous line?
Regards.
Volkan YAZICI yazicivo@ttnet.net.tr writes:
While trying to build a parse tree list using CREATE-SCANNER, in the attempts after first 2-3 tries, below code exhausts the whole system memory and halts the system.
FWIW, the code runs fine and compiles in 0.03 seconds on LispWorks 5.0.2 on a Mac.
Cheers, Chris Dean
On Fri, 06 Jul 2007 12:31:03 +0300, Volkan YAZICI yazicivo@ttnet.net.tr wrote:
While trying to build a parse tree list using CREATE-SCANNER, in the attempts after first 2-3 tries, below code exhausts the whole system memory and halts the system.
(defparameter *markup-transformations* (loop for (element syntax) on (list ;; Link formatting. :link-internal "\[\[" :link-external "\[http://" :link-external "\[https://" :link-external "\[ftp://" ;; Text formatting. :text-italic-bold "'''''" :text-italic "'''" :text-bold "''" :text-underline "\_\_" :text-monospace "`" :text-superscript "\^" :text-subscript ",," ;; Formattings requiring a fresh line. :header-3 "\n=== " :header-2 "\n== " :header-1 "\n= " :code-start "\n{{{" :code-end "\n}}}" :blockquote "\n ") by #'cddr collect (list element (cl-ppcre:create-scanner (string-append "^" syntax)))))
After 15 minutes, still no OOM reactions. (SBCL 1.0.6) So I needed restart the machine. (And therefore, I cannot narrow down the problematic part of the code by bisectioning.) Do you have any ideas about the erronous line?
Works fine for me with SBCL 1.0.5 on Linux. I put the above code in a file, defined STRING-APPEND in the obvious way using FORMAT, and compiled and loaded the file a couple of times without problems. If you can reproduce the problem, then maybe you should try to print something (and force output) for each iteration, so you can see when printing stops.
(Which version of CL-PPCRE did you use, BTW?)
HTH, Edi.
Edi Weitz edi@agharta.de writes:
Works fine for me with SBCL 1.0.5 on Linux. I put the above code in a file, defined STRING-APPEND in the obvious way using FORMAT, and compiled and loaded the file a couple of times without problems. If you can reproduce the problem, then maybe you should try to print something (and force output) for each iteration, so you can see when printing stops.
Excuse me for not informing the list about the latest state of the problem. After Zach Beane suggested me to turn *USE-BMH-MATCHERS* off, I saw that next time I need to read the documentation more carefully. Turning *USE-BMH-MATCHERS* off solved the problem.
Regards.
cl-ppcre-devel@common-lisp.net
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Chris Dean -
Edi Weitz -
Volkan YAZICI