Re: Problem when recording with append mode
- Posted by jimcbrown (admin) Jan 05, 2013
- 1014 views
jimcbrown said...
sergelli said...
For some reason that does not matter here, some programs write files without '\n' in your last line.
...
Simply use a '\n' before starting the recordings is not solving also, because there are files that comes with '\n' at the end...
How do I resolve this issue?
Thanks in advance
You'll need to open the file and (if it exists) read the last character to check if it is a newline or not.
Some example code on how to do this:
EDIT: update after testing
include std/io.e --4.0 and up --include file.e --3.11 or earlier -- returns 1 if a newline must be added, 0 otherwise function check_newline(sequence file) integer h, c atom p h = open(file, "r") if h = -1 then return 0 end if if not seek(h, -1) then p = where(h) if not seek(h, p - 1) then c = getc(h) if c != '\n' and c != -1 then close(h) return 1 end if end if end if close(h) return 0 end function procedure append_newline(sequence file) integer h if check_newline(file) then h = open(file, "a") if h != -1 then puts(h, "\n") close(h) end if end if end procedure
