Find chars in text field

Hi,

I want to loop through a text field and find out the _x positions of each char/letter (ignoring the spaces and dashes “-”)

for example
testtxt=“R o-b o t”

I`m trying to get an array with something like pos_array=[12,27,34,40,56]
I need to have movie clips align under each char so i need to know where the little fellas are

Regards

WL