#339 Fortran: variables and functions not recognised

[Andre-Littoz]

Ctags 5.8

I'm using ctags against very old Fortran programs (f77) for reverse engineering. They are written all-uppercase as was usual at that time. Unhappily, the ctags Fortran parser checks keyword as lowercase identifiers (which is not conformant since this version of Fortran is a case-insensitive language). Consequently, variable declarations, start of subroutines and functions are not detected and no tag apart from label is returned.

Is it possible to change the Fortran parser to match keywords case-insensitice?

Note: modifying case in files is not feasible since files may be stored in read-only directories or on remote sites.