I have this code, where I want to read an xml File in FORTRAN that goes like this:

program FXML

use iso_fortran_env, only: int64

implicit none

character*100     ::  inputfile
character(*100)     ::  keyword

integer(kind = int64)           ::  value, k
integer(kind = int64)           ::  columns, lines

! definition of keywords !
character*13 :: end_of_file

end_of_file = '</TimeSeries>'


inputfile = TRIM("C:/TEMP/timeseries_input_LT.xml")
open(13, file = inputfile, status = "old")

columns = 0
lines = 0

do k = 0, 999999999
  read(13, *) keyword
  if(keyword .eq. end_of_file) then
      exit
  endif

! Do some stuff

enddo

end program

The program’s intend is to read the XML file. But I cannot even read the whole file. It always stops at line number 1375214, telling me that keyword reads '< '. The program then sais it reached the end of the file during the read. Of course, line 1375214 does not read that but is the very same as the lines before and after that line. The file has a total of 1382199 lines.

Is there a limit I’m not aware of?