在SWI Prolog中使用字符串

Question

I'm a little bit confused. I would like to use the split_string function which can be seen here . But I just don't know how to import or use this function. Do I have this pl File already on my PC? I can only find strings.pl in C:\\Program Files\\swipl\\library\\dialect\\ciao but I doesn't include the split_string function.

I'm pretty sure it's totally easy but I just can't figure it out.

Thanks!

Answer 1

You will probably need to install the "development release" of SWI-Prolog (major version 7), if you haven't yet. On Windows and MacOS, this simply means getting the right binaries . For Linux, you can either add the PPA (on the same page), or build from source , which is straight-forward enough.

Then, you will get something along the lines of: (note the banner with the version number)

$ swipl
Welcome to SWI-Prolog (Multi-threaded, 64 bits, Version 7.1.25)
Copyright (c) 1990-2014 University of Amsterdam, VU Amsterdam
SWI-Prolog comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to redistribute it under certain conditions.
Please visit http://www.swi-prolog.org for details.

For help, use ?- help(Topic). or ?- apropos(Word).

?- split_string("a.b.c", ".", "", L).
L = ["a", "b", "c"].

You shouldn't need to import anything explicitly.

Does that solve your problem?