row -> row | row newline rows vs rows -> row (newline row):*

[SevenOutman]

Hi, thanks for this tool! I was wondering if there's any difference (in performance or semantic) between these two ways of declaring repeating items (e.g. rows in csv)?

rows -> row
      | row newline rows

# vs

rows -> row (newline row):*

I was writing a grammar and got some performance issue. I used the second approach all the way, don't know if it slows things down.