I often use the namelist feature for flexible input of parameter lists to FORTRAN programmes, but the other day when searching to remind myself of their use I came across this statement:
It (namelist language extension to f77) has now been included in the Fortran 90 language. However, NAMELIST is a poorly designed feature and should be avoided whenever possible.
I was just wondering
There is no mention of namelist inefficiency and poor design whatsoever in the canonical book of Metcalf et al.: Modern Fortran Explained. https://books.google.com/books?id=V7UVDAAAQBAJ&lpg=PP1&pg=PA197#v=onepage&q=namelist%20I/O&f=false To the contrary, I believe namelists -- especially with the added enhancements in Fortran 2003 and 2008 -- are quite useful and flexible method of data I/O.