timization can be disabled by the
PCRE2_NO_DOTSTAR_ANCHOR option, and is automatically disabled if the pattern
contains (*PRUNE) or (*SKIP).
</P>
<P>
If PCRE2_DOTALL is not set, PCRE2 cannot make this optimization, because the
dot metacharacter does not then match a newline, and if the subject string
contains newlines, the pattern may match from the character immediately
following one of them instead of from the very start. For example, the pattern
<pre>
  .*second
</pre>
matches the subject "first\nand sec