First off, I agree with the other posts!

If you are looking for a pattern that has first a quotation mark, then any characters to another quotation mark, an = sign, and finally a comma.

The next pattern being the same as the first without the quotation marks

And finally, any characters, and = sign, and the newline character, then try the re-write and see if you get better results and tweek it from there.

The * and the ? next to each other are redundant especially after the wildcard . (which means any character), and the * meaning 0 or more them.

split /(\".*?\"(?=,))|(.*?(?=,))|(.*?(?=\n))/

I think you are looking something more like this. The second pattern and the first end up being redundant, so I removed the first pattern. Please not that it has been a long time since I have worked on this type of pattern matching, and I may completely missed the mark

$some_value  = split (/.*\=,|.*\=\n$/, $some_scalar);
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