To be equivalent, it should be: 

$TERMSDEF = qr/\b\w+\b|(?:'.+?')|(?:".+?")/isx;

[download]

Mind you, the "i" and "x" are useless here, but the "s" is necessary.

In reply to Re^2: Regex won't match. by ikegami
in thread Regex won't match. by Anonymous Monk

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