[Octave-bug-tracker] [bug #34101] regexp 'match' problem with empty string

[Rik]

Update of bug #34101 (project octave):

              Item Group:             Performance => Crash                  

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Follow-up Comment #1:

There is something wrong with the handling of empty patterns in regexp.  I
have not determined whether it is with Octave or with the PCRE libraries
themselves.

Here is a simple test case which puts Octave into an infinite loop that one
must use Ctrl-C to abort from.


regexprep ("hello world", "", "#")


Perl itself correctly matches a null pattern at every opportunity which means
every single character as this command line example demonstrates.


perl -pe 's//#/g'
Hello World
#H#e#l#l#o# #W#o#r#l#d#




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