File Handling
- see(F)
- see/1 (B)
F becomes the current input stream.
F must be instantiated to an atom at the time of the call.
- seeing(F)
- seeing/1 (B)
F is unified with the name of the current input file.
- seen
- seen/0 (B)
Closes the current input stream.
- tell(F)
- tell/1 (B)
F becomes the current output stream.
F must be instantiated to an atom at the time of the call.
- telling(F)
- telling/1 (B)
F is unified with the name of the current output file.
- told
- told/0 (B)
Closes the current output stream.
- $exists(F)
- $exists/1 (B)
Succeeds if file F exists.