strange regexp behavior

[G..]

I found a magic string that produces the following regexp behavior:

octave:1>
s=sprintf('\t4\n0000\t-0.00\t-0.0000\t4\t-0.00\t-0.0000\t4\n0000\t-0.00\t-0.0000\t0\t-0.00\t-')
s =     4
0000    -0.00   -0.0000 4       -0.00   -0.0000 4
0000    -0.00   -0.0000 0       -0.00   -
octave:2> regexp(s, '(\s*-*\d+[.]*\d*\s*)+\n')
error: regexp: internal error calling pcre_exec

I verified this on 3 different machines (running 3.0.2). It really depends
on this particular string/pattern. Matlab shows no problems.

G.
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