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  1. or download this
      DB<145> p $s3=q{ "no" yo \\' yo ' no \\\\\\' no ' yo } 
 "no" yo \' yo ' no \\\' no ' yo
...

  DB<147> p $_
 "no" yO \' yO ' no \\\' no ' yO
  2. or download this
      DB<148> $_=$s3;  s/ ( \\. | (['"]) (?: \\.|[^\2] )* \2 ) | o /  $1 o
+r 'O' /xge ; 
 => 6

  DB<149> p $_
 "no" yO \' yO ' no \\\' no ' yO
  3. or download this
      DB<110> $_=$s3;  s/ ( \\. | (['"]) (?: \\.|. )*? \2 ) | o /  $1 or '
+O' /xge ; print ; ()
 "no'" yO \' yO ' no \\\' no ' yO