multiline: Add [[ as string/comment parsers.
multiline: Add [[ as string/comment parsers.

AlexIljin/factor,tgunr/factor,factor/factor,mrjbq7/factor,bpollack/factor,factor/factor,factor/factor,mrjbq7/factor,bpollack/factor,bpollack/factor,AlexIljin/factor,bpollack/factor,bpollack/factor,factor/factor,factor/factor,mrjbq7/factor,mrjbq7/factor,tgunr/factor,AlexIljin/factor,AlexIljin/factor,mrjbq7/factor,AlexIljin/factor,bpollack/factor,AlexIljin/factor,tgunr/factor,mrjbq7/factor,tgunr/factor,factor/factor,tgunr/factor,bpollack/factor,tgunr/factor,AlexIljin/factor