Package org.projog.core.predicate.builtin.io

package org.projog.core.predicate.builtin.io
Predicates for system input and output with the file system.
  • Classes
    Class
    Description
    Close
    close(X) - closes a stream.
    CurrentInput
    current_input(X) - match a term to the current input stream.
    CurrentOutput
    current_output(X) - match a term to the current output stream.
    GetChar
    get_char(X) - reads the next character from the input stream.
    GetCode
    get_code(X) - reads the next character from the input stream.
    NewLine
    nl - outputs a new line character.
    Op
    op(X,Y,Z)
    Open
    open(X,Y,Z) - opens a file.
    PutChar
    put_char(X) - writes a character.
    Read
    read(X) - reads a term from the input stream.
    See
    see(X) - opens a file and sets it as the current input stream.
    Seen
    seen - closes the current input stream.
    SetInput
    set_input(X) - sets the current input.
    SetOutput
    set_output(X) - sets the current output.
    Tab
    tab(X) - writes X number of spaces to the output stream.
    Tell
    tell(X) - opens a file and sets it as the current output stream.
    Told
    told - closes the current output stream.
    Write
    write(X) - writes a term to the output stream.
    WriteCanonical
    write_canonical(X) - writes a term to the output stream.
    Writef
    writef(X,Y) - writes formatted text to the output stream.