" Vim settings file
" Language: Fortran 2023 (and Fortran 2018, 2008, 2003, 95, 90, 77, 66)
" Version: (v55) 2023 December 22
" Maintainers: Ajit J. Thakkar ;
" Joshua Hollett
" Usage: For instructions, do :help fortran-plugin from Vim
" Credits:
" Version 0.1 was created in September 2000 by Ajit Thakkar.
" Since then, useful suggestions and contributions have been made, in order, by:
" Stefano Zacchiroli, Hendrik Merx, Ben Fritz, David Barnett, Eisuke Kawashima,
" Doug Kearns, and Fritz Reese.
" Only do these settings when not done yet for this buffer
if exists("b:did_ftplugin")
finish
endif
let s:cposet=&cpoptions
set cpoptions&vim
" Don't do other file type settings for this buffer
let b:did_ftplugin = 1
" Determine whether this is a fixed or free format source file
" if this hasn't been done yet using the priority:
" buffer-local value
" > global value
" > file extension as in Intel ifort, gcc (gfortran), NAG, Pathscale, and Cray compilers
if !exists("b:fortran_fixed_source")
if exists("fortran_free_source")
" User guarantees free source form
let b:fortran_fixed_source = 0
elseif exists("fortran_fixed_source")
" User guarantees fixed source form
let b:fortran_fixed_source = 1
elseif expand("%:e") =~? '^f\%(90\|95\|03\|08\)$'
" Free-form file extension defaults as in Intel ifort, gcc(gfortran), NAG, Pathscale, and Cray compilers
let b:fortran_fixed_source = 0
elseif expand("%:e") =~? '^\%(f\|f77\|for\)$'
" Fixed-form file extension defaults
let b:fortran_fixed_source = 1
else
" Modern fortran compilers still allow both fixed and free source form
" Assume fixed source form unless signs of free source form
" are detected in the first five columns of the first s:lmax lines.
" Detection becomes more accurate and time-consuming if more lines
" are checked. Increase the limit below if you keep lots of comments at
" the very top of each file and you have a fast computer.
let s:lmax = 500
if ( s:lmax > line("$") )
let s:lmax = line("$")
endif
let b:fortran_fixed_source = 1
let s:ln=1
while s:ln <= s:lmax
let s:test = strpart(getline(s:ln),0,5)
if s:test !~ '^[Cc*]' && s:test !~ '^ *[!#]' && s:test =~ '[^ 0-9\t]' && s:test !~ '^[ 0-9]*\t'
let b:fortran_fixed_source = 0
break
endif
let s:ln = s:ln + 1
endwhile
unlet! s:lmax s:ln s:test
endif
endif
" Set comments and textwidth according to source type
if (b:fortran_fixed_source == 1)
setlocal comments=:!,:*,:C
" Fixed format requires a textwidth of 72 for code,
" but some vendor extensions allow longer lines
if exists("fortran_extended_line_length")
setlocal tw=132
else
" The use of columns 73-80 for sequence numbers is obsolete
" so almost all compilers allow a textwidth of 80
setlocal tw=80
" If you need to add "&" on continued lines so that the code is
" compatible with both free and fixed format, then you should do so
" in column 81 and uncomment the next line
" setlocal tw=81
endif
else
setlocal comments=:!
" Free format allows a textwidth of 132
setlocal tw=132
endif
" Set commentstring for foldmethod=marker
setlocal cms=!%s
" Tabs are not a good idea in Fortran so the default is to expand tabs
if !exists("fortran_have_tabs")
setlocal expandtab
endif
" Set 'formatoptions' to break text lines
setlocal fo+=t
setlocal include=^\\c#\\=\\s*include\\s\\+
setlocal suffixesadd+=.f08,.f03,.f95,.f90,.for,.f,.F,.f77,.ftn,.fpp
" Define patterns for the matchit plugin
if !exists("b:match_words")
let s:notend = '\%(\:' . s:notselect. '\:\,' .
\ s:notend .'\