[question/request] any way to pass arguments to external called macros like cmd/shell commands does?

[atesin]

hi... i imagine to write a generic macro to be used by other macros, to cast a spell on different target depending modifier keys pressed, something like:

macro: casttarget

/script if nil then CastSpellByName(%1); end -- to fix macro icon
/cast [mod:alt,@player] %1
/cast [mod:ctrl,@focus] %1
/cast %1
/cast Attack

then this macro being used by others like this

macro: castBlessKing

/cast {casttarget "Blessing of Kings"}

macro: castHolyLight

/cast {casttarget "Holy Light"}

something like this, do you catch the idea? :) ... passing arguments to other external macros will effectively turn them into some kind of reusable functions

(or does anybody know a way to to set global functions at wow startup?)