modify Fortran declarations

Write a Python or Perl script to group variable declarations in Fortran functions and subroutines so that (1) function or subroutine arguments appear before declarations of local variables. The function declaration itself (the data type it returns) should appear after the argument declarations, on its own line. (2) within the subgroups of arguments and local variables, declarations of variables of the same type are aggregated when possible. For example, the declarations real z integer i integer j real y(4) integer k(3) real x can be aggregated as integer i,j,k(3) real z,y(4),x A statement is a declaration in Fortran if the first word is real, integer, character, logical, or type(foo), where "foo" can be any word. A 'kind' attribute of the form (kind=n) can appear after the real, integer, character, or logical keyword, and it should be regarded as part of the data type, so that integer (kind=4) i integer (kind=8) j would not be aggregated but integer (kind=4) i integer (kind=4) j would be aggregated to integer (kind=4) i,j Do NOT aggregate any declarations for which a comment (denoted by a leading !) appears on the same line, so integer i integer num_days ! number of days integer j would be aggregated as integer i,j integer num_days ! number of days Put a comment line ! local variables after the declaration of the function and subroutine arguments and before declaring the local variables. More detail are in the attachment. ## Deliverables Code that runs with Python 2.4 OR Perl 5.0. ## Platform Windows XP, but should be written in portable Python or Perl.