- Documentation
- Reference manual
- The SWI-Prolog library
- library(aggregate): Aggregation operators on backtrackable predicates
 - library(apply): Apply predicates on a list
 - library(assoc): Association lists
 - library(broadcast): Broadcast and receive event notifications
 - library(charsio): I/O on Lists of Character Codes
 - library(check): Consistency checking
 - library(clpb): CLP(B): Constraint Logic Programming over Boolean Variables
 - library(clpfd): CLP(FD): Constraint Logic Programming over Finite Domains
 - library(clpqr): Constraint Logic Programming over Rationals and Reals
 - library(csv): Process CSV (Comma-Separated Values) data
 - library(debug): Print debug messages and test assertions
 - library(error): Error generating support
 - library(gensym): Generate unique identifiers
 - library(iostream): Utilities to deal with streams
 - library(lists): List Manipulation
 - library(main): Provide entry point for scripts
 - library(nb_set): Non-backtrackable set
 - library(www_browser): Activating your Web-browser
 - library(option): Option list processing
 - library(optparse): command line parsing
 - library(ordsets): Ordered set manipulation
 - library(pairs): Operations on key-value lists
 - library(persistency): Provide persistent dynamic predicates
 - library(pio): Pure I/O
 - library(predicate_options): Declare option-processing of predicates
 - library(prolog_pack): A package manager for Prolog
 - library(prolog_xref): Cross-reference data collection library
 - library(quasi_quotations): Define Quasi Quotation syntax
 - library(random): Random numbers
 - library(readutil): Reading lines, streams and files
 - library(record): Access named fields in a term
 - library(registry): Manipulating the Windows registry
 - library(simplex): Solve linear programming problems
 - library(solution_sequences): Modify solution sequences
 - library(tabling): Tabled execution (SLG)
 - library(thread_pool): Resource bounded thread management
 - library(ugraphs): Unweighted Graphs
 - library(url): Analysing and constructing URL
 - library(varnumbers): Utilities for numbered terms
 - library(yall): Lambda expressions
 
 
 - The SWI-Prolog library
 - Packages
 
 - Reference manual
 
A.18 library(www_browser): Activating your Web-browser
This library deals with the very system-dependent task of opening a 
web page in a browser. See also library(url) and the HTTP 
package.
- www_open_url(+URL)
 - Open URL in an external web browser. The reason to place this 
in the library is to centralise the maintenance on this highly platform- 
and browser-specific task. It distinguishes between the following cases:
- MS-Windows
If it detects MS-Windows it uses win_shell/2 to open the URL. The behaviour and browser started depends on the version of Windows and Windows-shell configuration, but in general it should be the behaviour expected by the user. - Other platforms
On other platforms it tests the environment variable (see getenv/2) namedBROWSERor uses netscape if this variable is not set. If the browser is eithermozillaornetscape, www_open_url/1 first tries to open a new window on a running browser using the-remoteoption of Netscape. If this fails or the browser is notmozillaornetscapethe system simply passes the URL as first argument to the program. 
 - MS-Windows