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Packs (add-ons) for SWI-Prolog

Below is a list of known packages. Please be aware that packages are not moderated. Installing a pack does not execute code in the pack, but simply loading a library from the pack may execute arbitrary code. More information about packages is available here. You can search for packages from the Prolog command line using pack_list/1. This contacts the pack server for packs that match by name or title. A leading i indicates that the pack is already installed, while p merely indicates that it is known by the server.

?- pack_list(graph).
p callgraph@0.3.4           - Predicate call graph visualisation
i graphml@0.1.0             - Write GraphML files
i gvterm@1.1                - Show Prolog terms using graphviz
p musicbrainz@0.6.3         - Musicbrainz client library
p sindice@0.0.3             - Access to Sindice semantic web search engine

After finding the right pack, the pack and its dependencies can be installed using the pack_install/1 as illustrated below.

?- pack_install(hello).

Clicking the package shows details and allows you to rate and comment the pack.

Pack
tot: 38
Version
(#older)
Downloads
tot: 6,096
(#latest)
Rating
(#votes/
#comments)
Title
list_util0.13.0181,582834
Predicates for working with lists
mavis0.2.3131,0092
Optional type declarations
regex0.3.311995600
Regular expressions
julian0.1.3748514
Date and time library
func0.4.292909
(2/2)
Function application and composition
tap1.0.11827810
Automated tests via Test Anything Protocol
quickcheck0.3.0171441
QuickCheck randomized testing
spawn0.0.1118
Easy concurrency
djson0.0.32118112
Declarative JSON
dcg_util0.3.1310121
(1/1)
DCG utility predicates
function_expansion0.1.24923
(1/1)
Help for writing function-like macros
delay0.3.378456
Avoid instantiation errors for built-in predicates
atom_feed0.2.048167
Parse Atom and RSS feeds
amazon_api0.0.325851
Interface to Amazon APIs
maybe0.1.135754
The maybe type represents an optional value
sweet0.1.135550
Sugar to make Prolog a little sweeter
interpolate0.1.02531
String interpolation
condition0.1.134937
Condition system a la Common Lisp
bencode0.0.139
Bencoding from BitTorrent protocol
semantria0.0.433424
Use Semantria natural language API
julian_lang_en0.0.213433
Parse English language phrases into library(julian) constraints
jolog0.0.313424
Concurrency via join calculus
uri_qq0.3.033322
URI quasiquotations
lcs0.0.130
Longest common subsequence
roman0.1.029
Roman numerals
thousands0.2.032823
(0/1)
Thousands separator for large integers
format_spec0.0.212827
Parse and check format/2 specifications
web0.1.112522
Easy web client
readability_parser0.0.432415
Readability Parser API
dotcloud0.0.212115
Conveniences for running on dotCloud
unified_diff0.0.119
Parse and generate unified diffs
miser0.0.119
Build self-optimizing predicates
chan0.2.016
Directional channels for thread communication
tidylog0.0.110
term_diff0.0.11108
pager0.1.0161
Send output to user's preferred pager
notes8000.1.0141
Query phone number data from 800notes.com
nanp0.1.0143
phone numbers in the North American Numbering Plan