[perl #19388] behaviour changed in Perl 5.10

[renee.baecker@smart-websolutions.de]

The behaviour changed in Perl 5.10:

reneeb@reneeb-desktop:~$ /opt/perl510/bin/perl -wle '$_ = "bk"; print
"_=$_" while s/((.))k$2//;print "|$1|"'
Use of uninitialized value $2 in regexp compilation at -e line 1.
_=
Use of uninitialized value $1 in concatenation (.) or string at -e line
1.
||
reneeb@reneeb-desktop:~$ /opt/perl510/bin/perl -wle '$_ = "bk"; print
"_=$_,1=$1" while s/((.))k$2//;print "|$1|"'
Use of uninitialized value $2 in regexp compilation at -e line 1.
_=,1=b
Use of uninitialized value $1 in concatenation (.) or string at -e line
1.
||
reneeb@reneeb-desktop:~$

Cheers,
Renee

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