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title: " prolog-shell" sidebar: gerritdoc_sidebar permalink: pgm-prolog-shell.html

NAME

prolog-shell - Simple interactive Prolog interpreter

SYNOPSIS

java -jar gerrit.war prolog-shell
  [-s FILE.pl …]

DESCRIPTION

Provides a simple interactive Prolog interpreter for development and testing.

OPTIONS

• -s
  Dynamically load the Prolog source code at startup, as though the user had entered ['FILE.pl']. into the interpreter once it was running. This option may be supplied more than once to load multiple files.

EXAMPLES

Define a simple predicate and test it:

        $ cat >simple.pl
        food(apple).
        food(orange).
        ^D

        $ java -jar gerrit.war prolog-shell -s simple.pl
        Gerrit Code Review 2.2.1-84-ge9c3992 - Interactive Prolog Shell
        based on Prolog Cafe 1.2.5 (mantis)
                 Copyright(C) 1997-2009 M.Banbara and N.Tamura
        (type Ctrl-D or "halt." to exit, "['path/to/file.pl']." to load a file)

        {consulting /usr/local/google/users/sop/gerrit/gerrit/simple.pl ...}
        {/usr/local/google/users/sop/gerrit/gerrit/simple.pl consulted 99 msec}

        | ?- food(Type).

        Type = apple ? ;

        Type = orange ? ;

        no
        | ?-

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