Hi all,

I encountered a problem recently where create-pdf.pl was stuck in an infinite loop because a string passed into ‘$line =~ s/$1//;’ in C4::Patroncards::Patroncard contained “(TEST)” and it was treating the parentheses as metacharacters and not literal values.

I fixed the problem by changing the line to  ‘$line =~ s/\Q$1\E//;’, so that anything in $1 would be escaped, but it got me thinking about other parts of Koha. I’m not saying that it’s necessarily a problem in other parts of Koha, but that it might be good to be mindful of it.

David Cook

Systems Librarian

Prosentient Systems

72/330 Wattle St

Ultimo, NSW 2007

Australia

Office: 02 9212 0899

Direct: 02 8005 0595