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program demo2
!! @(#) all parsing and **help** and **version** information in a contained procedure.
use M_CLI2, only : unnamed
implicit none
integer :: i
!! DEFINE "ARGS" VALUES
integer :: x, y, z
real :: point(3)
character(len=80) :: title
logical :: l, l_
print *,'demo2: all parsing and **help** and **version** information in a contained procedure'
call parse() !! DEFINE AND PARSE COMMAND LINE
!! ALL DONE CRACKING THE COMMAND LINE USE THE VALUES IN YOUR PROGRAM.
write(*,*)x+y+z
write(*,*)point*2
write(*,*)title
write(*,*)l,l_
!! THE OPTIONAL UNNAMED VALUES ON THE COMMAND LINE ARE
!! ACCUMULATED IN THE CHARACTER ARRAY "UNNAMED"
if(size(unnamed) > 0)then
write(*,'(a)')'files:'
write(*,'(i6.6,3a)')(i,'[',unnamed(i),']',i=1,size(unnamed))
endif
contains
subroutine parse()
!! PUT EVERYTHING TO DO WITH COMMAND PARSING HERE FOR CLARITY
use M_CLI2, only : set_args, get_args
use M_CLI2, only : get_args_fixed_size,get_args_fixed_length
character(len=:),allocatable :: help_text(:), version_text(:)
!! DEFINE COMMAND PROTOTYPE
!! o All parameters must be listed with a default value
!! o string values must be double-quoted
!! o numeric lists must be comma-delimited. No spaces are allowed
!! o long keynames must be all lowercase
character(len=*),parameter :: cmd='&
& -x 1 -y 2 -z 3 &
& --point -1,-2,-3 &
& --title "my title" &
& -l F -L F &
& '
help_text=[character(len=80) :: &
'NAME ', &
' myprocedure(1) - make all things possible ', &
'SYNOPSIS ', &
' function myprocedure(stuff) ', &
' class(*) :: stuff ', &
'DESCRIPTION ', &
' myprocedure(1) makes all things possible given STUFF ', &
'OPTIONS ', &
' STUFF things to do things to ', &
'RETURNS ', &
' MYPROCEDURE the answers you want ', &
'EXAMPLE ', &
'' ]
version_text=[character(len=80) :: &
'@(#)PROGRAM: demo2 >', &
'@(#)DESCRIPTION: My demo program >', &
'@(#)VERSION: 1.0 20200115 >', &
'@(#)AUTHOR: me, myself, and I>', &
'@(#)LICENSE: Public Domain >', &
'' ]
call set_args(cmd, help_text, version_text)
call get_args('x',x)
call get_args('y',y)
call get_args('z',z)
call get_args_fixed_size('point',point)
call get_args_fixed_length('title',title)
call get_args('l',l)
call get_args('L',l_)
end subroutine parse
end program demo2
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