GNU Info

(librep.info)Creating File Objects

---

Next: Destroying File Objects Up: File Objects

---

Enter node , (file) or (file)node

Creating File Objects
.....................

 - Function: open-file file-name mode
     This function opens the file called FILE-NAME (Note: File Names)
     and returns the new file object.

     The MODE argument is a symbol defining the access modes used to
     open the file with, the options are:

    `read'
          Open an existing file for reading only.

    `write'
          Open the file for writing only, if the file exists it is
          truncated to zero length. Otherwise a new file is created.

    `append'
          Open the file for appending to, i.e. writing to the end of
          the file. If the file doesn't exist it is created.

   The three standard I/O streams are also available as file handles.

 - Function: stdin-file
     Return a file object representing the interpreters standard input.

 - Function: stdout-file
     Return a file object representing the interpreters standard output.

 - Function: stderr-file
     Return a file object representing the interpreters standard error.

   Attempting to close any of these files will result in the associated
stream being connected to `/dev/null'.