Hmm, besides the clever ?:, you can also avoid the splice: 
perl -e '$_ and push @v, $_ for (split /(?<!\\)(\\\\)*&/, "a=1&b=2\\&3
+&c=4"); print join "\n", @v'

[download]
-anders

In reply to RE: split unless escaped by anders
in thread split unless escaped by da'ud

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