/
(((?# FIRST TYPE OF ARGS\
)(?#start arg)("|'|`)(?#\
)(?#arg)(?<arg>(?# whole repeat pattern)((?!\3)(?(?!\\).|..))*)(?#\
)(?#end arg)\3(?#\
))|((?# SECOND TYPE OF ARGS\
)(?#start arg)(^|\s+)(?#\
)(?#arg)(?<arg_>(?#whole repeat pattern)((?!\s|$)(?(?!\\).|..))+)(?#\
)))(?#\
skipping trailing whitespaces)(\s|^|$)*(?=(\s|^|$|"|'|`))
/
gm