<p><strong>Pattern</strong> is by default a normal string that is matched precisely (but without
regard to case, except in the case of pickaxe). However, when you check the <em>re</em> checkbox,
the pattern entered is recognized as the POSIX extended
<p><strong>Pattern</strong> is by default a normal string that is matched precisely (but without
regard to case, except in the case of pickaxe). However, when you check the <em>re</em> checkbox,
the pattern entered is recognized as the POSIX extended