6.2.115. see

opens a file for standard input

SYNOPSIS

INCLUDE 'iolib.h'
see("data")

SYNTAX

see(FileName) (i)

ARGUMENTS

string(FileName) (i) Name of the file to be opened

DESCRIPTION

Opens a file for reading and sets it as current input stream.
NOTE: You should not mix up the old fashioned see(), seeing (), seen predicates with the readdevice (), closefile (), or gotowindow () predicates. Always close files with the predicates belonging to the same family!

EXAMPLE

file_str(test,"Hello World"),
see(test),
readln(X),
seen,
write(X),nl.

ERRORS

A runtime error occurs if the file was not opened properly.

LAYERS

prolog-process, client-server, object

RELATED PREDICATES

seeing , seen , tell , telling , told , read , readln , readchar , get , openread , readdevice