This regexp works fine for short strings but will cause segfault (due to stack overflow i suppose) on long strings. 
$n = 40000;
$_ = "'" . "=" x $n . "'";
printf "Match %d chars\n", length($&) if /'(\\'|''|[^'])+'/;

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Can anyone give me an equivalent regexp with less stack requirement, which can match up to 4M chars inside leading and ending quote? Thanks in advance.

In reply to regexp causes segfault by Anonymous Monk

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