CSS内のストリングをparseする

/\(\s*(?:'((?:\\'|\\\n|[^\n])*?')|"((?:\\"|\\\n|[^\n])*?")|(?<!['"])([^\s'")]+))\s*\)/su

(	hhh/iii/jjj.gif  )


(  	'../../img/sor\'uce.png'  )

	("http://122/333/444.png")

	( "https//aaa/b
bb/cc
c.gif" )

	(   "https//xxx/y\
yy/zz\
z.gif"   )

Array
(
    [3] => hhh/iii/jjj.gif
    [29] => ../../img/sor\'uce.png'
    [60] => http://122/333/444.png"
    [125] => https//xxx/y\
yy/zz\
z.gif"
)