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input_reader.F90
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input_reader.F90
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module input_reader
implicit none
public lowercase
public uppercase
public word_contains
public word_count
public reset_available_kw_list
public check_whether_kw_found
public kw_matches
public kw_read
public set_file_unit
public get_file_unit
integer, parameter, public :: kw_length = 7
private
interface kw_read
module procedure kw_read_c
module procedure kw_read_i1
module procedure kw_read_i3
module procedure kw_read_r1
module procedure kw_read_r2
module procedure kw_read_r3
module procedure kw_read_r4
module procedure kw_read_ivec
module procedure kw_read_ivec_all
module procedure kw_append_ivec
end interface
integer, parameter :: max_nr_kw = 200
integer, parameter :: line_length = 80
integer, parameter :: wrong_file_unit = -123456
integer :: nr_available_kw
integer :: file_unit = wrong_file_unit
logical :: kw_found
character(kw_length) :: available_kw_list(max_nr_kw)
contains
subroutine set_file_unit(u)
integer, intent(in) :: u
file_unit = u
end subroutine
integer function get_file_unit()
if (file_unit == wrong_file_unit) then
print *, 'error: file_unit in input_reader has not been set'
stop 1
end if
get_file_unit = file_unit
end function
function lowercase(s)
! --------------------------------------------------------------------------
character(*), intent(in) :: s
character(len(s)) :: lowercase
! --------------------------------------------------------------------------
integer :: off, i, ia
! --------------------------------------------------------------------------
lowercase = s
off = iachar('a') - iachar('A')
do i = 1, len(s)
ia = iachar(s(i:i))
if (ia >= iachar('A') .and. ia <= iachar('Z')) then
lowercase(i:i) = achar(ia + off)
end if
enddo
end function
function uppercase(s)
! --------------------------------------------------------------------------
character(*), intent(in) :: s
character(len(s)) :: uppercase
! --------------------------------------------------------------------------
integer :: off, i, ia
! --------------------------------------------------------------------------
uppercase = s
off = iachar('A') - iachar('a')
do i = 1, len(s)
ia = iachar(s(i:i))
if (ia >= iachar('a') .and. ia <= iachar('Z')) then
uppercase(i:i) = achar(ia + off)
end if
enddo
end function
function prefix_zeros(i, n)
! prefix_zeros(137, 6) returns '000137'
! --------------------------------------------------------------------------
integer, intent(in) :: i
integer, intent(in) :: n
character(n) :: prefix_zeros
! --------------------------------------------------------------------------
integer :: k
character(1) :: c09(0:9) = (/'0','1','2','3','4','5','6','7','8','9'/)
! --------------------------------------------------------------------------
do k = 1, n
prefix_zeros(n-k+1:n-k+1) = c09(mod(i, 10**k)/10**(k-1))
end do
end function
function word_count(s)
! --------------------------------------------------------------------------
character(*), intent(in) :: s
integer :: word_count
! --------------------------------------------------------------------------
integer :: i
logical :: is_blank
! --------------------------------------------------------------------------
word_count = 0
if (len(s) <= 0) return
is_blank = .true.
do i = 1, len(s)
if (s(i:i) == ' ') then
is_blank = .true.
else if (is_blank) then
word_count = word_count + 1
is_blank = .false.
end if
end do
end function
function word_contains(word, substring)
! --------------------------------------------------------------------------
character(*), intent(in) :: word
character(*), intent(in) :: substring
! --------------------------------------------------------------------------
logical :: word_contains
! --------------------------------------------------------------------------
word_contains = .false.
if (index(word, substring) > 0) then
word_contains = .true.
end if
end function
subroutine kw_read_c(kw_input, c)
character(kw_length), intent(in) :: kw_input
character(*), intent(out) :: c
! radovan: please do not change to star
! otherwise "3,5" is read as "3"
read(get_file_unit(), '(a)', err=1) c
return
1 call kw_read_error(kw_input)
end subroutine
subroutine kw_read_i1(kw_input, i)
character(kw_length), intent(in) :: kw_input
integer, intent(out) :: i
read(get_file_unit(), *, err=1) i
return
1 call kw_read_error(kw_input)
end subroutine
subroutine kw_read_i3(kw_input, i1, i2, i3)
character(kw_length), intent(in) :: kw_input
integer, intent(out) :: i1, i2, i3
read(get_file_unit(), *, err=1) i1, i2, i3
return
1 call kw_read_error(kw_input)
end subroutine
subroutine kw_read_r1(kw_input, r)
character(kw_length), intent(in) :: kw_input
real(8), intent(out) :: r
read(get_file_unit(), *, err=1) r
return
1 call kw_read_error(kw_input)
end subroutine
subroutine kw_read_r2(kw_input, r1, r2)
character(kw_length), intent(in) :: kw_input
real(8), intent(out) :: r1, r2
read(get_file_unit(), *, err=1) r1, r2
return
1 call kw_read_error(kw_input)
end subroutine
subroutine kw_read_r3(kw_input, r1, r2, r3)
character(kw_length), intent(in) :: kw_input
real(8), intent(out) :: r1, r2, r3
read(get_file_unit(), *, err=1) r1, r2, r3
return
1 call kw_read_error(kw_input)
end subroutine
subroutine kw_read_r4(kw_input, r1, r2, r3, r4)
character(kw_length), intent(in) :: kw_input
real(8), intent(out) :: r1, r2, r3, r4
read(get_file_unit(), *, err=1) r1, r2, r3, r4
return
1 call kw_read_error(kw_input)
end subroutine
subroutine kw_read_ivec(kw_input, v, k)
character(kw_length), intent(in) :: kw_input
integer, intent(out) :: v(:)
integer, intent(in) :: k
integer :: j
read(get_file_unit(), *,err=1) (v(j), j=1,k)
return
1 call kw_read_error(kw_input)
end subroutine
subroutine kw_read_ivec_all (kw_input, v)
!
! Read line (string) of integer numbers separated by blanks or commas
! Use method of subsequent erasing of numbers in the string (line)
! where wanted individual numbers are extracted into v(:) array.
!
! Miro Ilias, July 2015 (GSI, Darmstadt): adapted for multi-digit integers (i1,i2,i3)
!
character(kw_length), intent(in) :: kw_input
integer, intent(out) :: v(:)
integer :: j, start
character(line_length) :: line
read(get_file_unit(),'(a)',err=1) line
start = verify(line,' ,;') ! finds first non-separator character
j = 1
do while (len_trim(line) > 0 .and. start /= 0)
read (line,*,err=1) v(j)
if (v(j).ge.0.and.v(j).le.9) then
! erase 1-char integer, 0 ... 9
line(1:start) = ' '
else if (v(j).ge.10.and.v(j).le.99) then
! erase 2-char integer, 10 ... 99
line(1:start+1) = ' '
else if (v(j).le.-1.and.v(j).ge.-9) then
! erase negative -char integer, -9 ... -1
line(1:start+1) = ' '
else if (v(j).ge.100.and.v(j).le.999) then
line(1:start+2) = ' ' ! 100 ... 999
else if (v(j).le.-10.and.v(j).ge.-99) then
line(1:start+2) = ' ' ! -99 ... -10
else if (v(j).ge.1000.and.v(j).le.9999) then
line(1:start+3) = ' ' ! 1000 ... 9999
else if (v(j).le.-100.and.v(j).ge.-999) then
line(1:start+3) = ' ' ! -999 ... -100
else ! catch error, we need good, readable output
print *,'kw_read_ivec_all: line=',line
print *,'kw_read_ivec_all: len_trim(line)=',len_trim(line)
print *,'kw_read_ivec_all: v(:)=',v
print *,'kw_read_ivec_all: start=',start
print *,'kw_read_ivec_all: v(j=',j,')=',v(j)
call quit('kw_read_ivec_all: integer out of range !')
endif
j = j + 1
start = verify(line,' ,;') ! renew first non-separator character
end do
return
1 call kw_read_error(kw_input)
end subroutine
subroutine kw_append_ivec(kw_input, v, filled, k)
character(kw_length), intent(in) :: kw_input
integer, intent(inout) :: v(:)
integer, intent(in) :: k
integer, intent(inout) :: filled
integer :: j
integer, allocatable, dimension(:) :: temp
allocate(temp(k))
read(get_file_unit(), *,err=1) (temp(j), j=1,k)
do j=1, k
if (all(v/=temp(j))) then
filled = filled + 1
v(filled) = temp(j)
end if
end do
deallocate(temp)
return
1 call kw_read_error(kw_input)
end subroutine
subroutine kw_read_error(kw_input)
character(kw_length), intent(in) :: kw_input
character(line_length) :: line
backspace get_file_unit()
read(get_file_unit(), *) line
write(*, *) 'error in input line:'
write(*, *) line
write(*, *) 'following keyword '//kw_input
call quit('error in line following keyword '//kw_input)
end subroutine
subroutine reset_available_kw_list()
nr_available_kw = 0
kw_found = .false.
end subroutine
subroutine check_whether_kw_found(kw_input, kw_section)
character(kw_length), intent(in) :: kw_input
character(kw_length), intent(in) :: kw_section
integer :: i
if (.not. kw_found) then
write(*, *) 'illegal keyword '//kw_input//' in section '//kw_section
write(*, *) 'list of available keywords in section '//kw_section//':'
do i = 1, nr_available_kw
write(*, *) available_kw_list(i)
end do
call quit('illegal keyword '//kw_input//' in section '//kw_section)
end if
end subroutine
function kw_matches(kw_input, kw_option)
character(kw_length), intent(in) :: kw_input
character(kw_length), intent(in) :: kw_option
logical :: kw_matches
if (lowercase(kw_input) == lowercase(kw_option)) then
kw_matches = .true.
kw_found = .true.
else
kw_matches = .false.
nr_available_kw = nr_available_kw + 1
available_kw_list(nr_available_kw) = kw_option
end if
end function
end module