flexfortip
Flexfortip is an alternative of namelist which supports nesting tags.
...If you want use array variables and/or hash variable in fortran, array module and hash module may help you. Operations such as push, pop and join are supported in array module, and operations such a insert lookup, delete, defined, deys are supported in hash module.
These source codes are provided under 2-clause BSD license. So, feel free to use it.