Rewind the file to the beginning of the current line, and return this line. The file is assumed to be opened. This is the SEQUENTIAL version (see also get_current_line_from_file_stream).
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| class(json_core), | intent(inout) | :: | json | |||
| integer(kind=IK), | intent(in) | :: | iunit | file unit number |
||
| character(kind=CK,len=:), | intent(out), | allocatable | :: | line | current line |
subroutine get_current_line_from_file_sequential(json,iunit,line)
implicit none
class(json_core),intent(inout) :: json
integer(IK),intent(in) :: iunit !! file unit number
character(kind=CK,len=:),allocatable,intent(out) :: line !! current line
character(kind=CK,len=seq_chunk_size) :: chunk !! for reading line in chunks
integer(IK) :: istat !! iostat flag
integer(IK) :: isize !! number of characters read in read statement
!initialize:
line = ''
!rewind to beginning of the current record:
backspace(iunit, iostat=istat)
!loop to read in all the characters in the current record.
![the line is read in chunks until the end of the line is reached]
if (istat==0) then
do
isize = 0
read(iunit,fmt='(A)',advance='NO',size=isize,iostat=istat) chunk
if (istat==0) then
line = line//chunk
else
if (isize>0 .and. isize<=seq_chunk_size) line = line//chunk(1:isize)
exit
end if
end do
end if
end subroutine get_current_line_from_file_sequential