$content=~s/\[google:\/\/([^|\]]+)\|([^\]]+)\]/&google('G',$1,$2)/eig; # [google://keyword(s)|text]
$content=~s/\[google:\/\/([^|\]]+)\]/&google('G',$1)/eig;              # [google://keyword(s)]
$content=~s/\[lucky:\/\/([^|\]]+)\|([^\]]+)\]/&google('L',$1,$2)/eig;  # [lucky://keyword(s)|text]
$content=~s/\[lucky:\/\/([^|\]]+)\]/&google('L',$1)/eig;               # [lucky://keyword(s)]