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Catastrophic Backtracking Problem
^
(
.
*?
,
)
{11}
P
Options: ^ and $ match at line breaks
Assert position at the start of the string or after a line break character
Match the regular expression below and capture its match into backreference number 1
Exactly 11 times
Note: You repeated the backreference itself. The backreference will capture only the last iteration. Put the backreference inside a group and repeat that group to capture all iterations.
Match any single character that is not a line break character
Between zero and unlimited times, as few times as possible, expanding as needed (lazy)
Match the character "," literally
Match the character "P" literally
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