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/home/swipl/lib/swipl/library/url.pl
AllApplicationManualNameSummaryHelp

  • swipl
    • library
      • error.pl
      • apply.pl
      • lists.pl -- List Manipulation
      • debug.pl -- Print debug messages and test assertions
      • broadcast.pl -- Event service
      • socket.pl
      • predicate_options.pl
      • shlib.pl -- Utility library for loading foreign objects (DLLs, shared objects)
      • option.pl -- Option list processing
      • uid.pl -- User and group management on Unix systems
      • unix.pl -- Unix specific operations
      • syslog.pl -- Unix syslog interface
      • thread_pool.pl -- Resource bounded thread management
      • gensym.pl
      • settings.pl -- Setting management
      • arithmetic.pl -- Extensible arithmetic
      • main.pl -- Provide entry point for scripts
      • readutil.pl
      • ssl.pl
      • crypto.pl
      • filesex.pl
      • doc_http.pl -- Documentation server
      • pldoc.pl -- Process source documentation
      • operators.pl -- Manage operators
      • pairs.pl -- Operations on key-value lists
      • prolog_source.pl -- Examine Prolog source-files
      • sgml.pl -- SGML, XML and HTML parser
      • quasi_quotations.pl -- Define Quasi Quotation syntax
      • uri.pl -- Process URIs
      • url.pl -- Analysing and constructing URL
        • global_url/3
        • is_absolute_url/1
        • http_location/2
        • parse_url/2
        • parse_url/3
        • www_form_encode/2
        • set_url_encoding/2
        • url_iri/2
        • parse_url_search/2
        • file_name_to_url/2
      • www_browser.pl -- Open a URL in the users browser
      • prolog_colour.pl
      • record.pl -- Access compound arguments by name
      • prolog_xref.pl -- Prolog cross-referencer data collection
      • occurs.pl -- Finding and counting sub-terms
      • ordsets.pl -- Ordered set manipulation
      • assoc.pl -- Binary associations
      • ugraphs.pl -- Graph manipulation library
      • memfile.pl
      • xpath.pl -- Select nodes in an XML DOM
      • iostream.pl -- Utilities to deal with streams
      • atom.pl -- Operations on atoms
      • porter_stem.pl
      • solution_sequences.pl -- Modify solution sequences
      • prolog_pack.pl -- A package manager for Prolog
      • prolog_config.pl -- Provide configuration information
      • process.pl -- Create processes and redirect I/O
      • git.pl -- Run GIT commands
      • ctypes.pl -- Character code classification
      • time.pl -- Time and alarm library
      • utf8.pl -- UTF-8 encoding/decoding on lists of character codes.
      • base64.pl -- Base64 encoding and decoding
      • sha.pl -- SHA secure hashes
      • crypt.pl
      • persistency.pl -- Provide persistent dynamic predicates
      • pure_input.pl -- Pure Input from files and streams
      • nb_set.pl -- Non-backtrackable sets
      • xsdp_types.pl -- XML-Schema primitive types
      • uuid.pl -- Universally Unique Identifier (UUID) Library
      • pcre.pl -- Perl compatible regular expression matching for SWI-Prolog
      • aggregate.pl -- Aggregation operators on backtrackable predicates
      • rdf_write.pl -- Write RDF/XML from a list of triples
      • rdf.pl -- RDF/XML parser
      • sgml_write.pl -- XML/SGML writer module
      • archive.pl -- Access several archive formats
      • csv.pl -- Process CSV (Comma-Separated Values) data
      • dialect.pl -- Support multiple Prolog dialects
      • apply_macros.pl -- Goal expansion rules to avoid meta-calling
      • prolog_code.pl -- Utilities for reasoning about code
      • dif.pl -- The dif/2 constraint
      • thread.pl -- High level thread primitives
      • rdf_triple.pl -- Create triples from intermediate representation
      • rdf_parser.pl
      • rewrite_term.pl
      • rbtrees.pl -- Red black trees
      • nb_rbtrees.pl -- Non-backtrackable operations on red black trees
      • pengines.pl -- Pengines: Web Logic Programming Made Easy
      • yall.pl -- Lambda expressions
      • sandbox.pl -- Sandboxed Prolog code
      • prolog_format.pl -- Analyse format specifications
      • random.pl -- Random numbers
      • pengines_io.pl -- Provide Prolog I/O for HTML clients
      • zlib.pl -- Zlib wrapper for SWI-Prolog
      • bdb.pl -- Berkeley DB interface
      • hash_stream.pl -- Maintain a hash on a stream
      • md5.pl -- MD5 hashes
      • pprint.pl -- Pretty Print Prolog terms
      • modules.pl -- Module utility predicates
      • lazy_lists.pl -- Lazy list handling
      • edinburgh.pl -- Some traditional Edinburgh predicates
      • prolog_clause.pl -- Get detailed source-information about a clause
      • prolog_breakpoints.pl -- Manage Prolog break-points
      • dicts.pl -- Dict utilities
      • writef.pl -- Old-style formatted write
      • when.pl -- Conditional coroutining
      • codesio.pl -- I/O on Lists of Character Codes
      • qsave.pl -- Save current program as a state or executable
      • zip.pl -- Access resource ZIP archives
      • protobufs.pl -- Google's Protocol Buffers ("protobufs")
      • date.pl -- Process dates and times
      • charsio.pl -- I/O on Lists of Character Codes
      • odbc.pl
      • varnumbers.pl -- Utilities for numbered terms
      • table.pl
      • mqi.pl
      • term_to_json.pl
      • make.pl -- Reload modified source files
      • plunit.pl -- Unit Testing
      • hashtable.pl -- Hash tables
      • doc_latex.pl -- PlDoc LaTeX backend
      • jpl.pl -- A Java interface for SWI Prolog 7.x
      • isub.pl -- isub: a string similarity measure
      • unicode.pl -- Unicode string handling
      • check.pl -- Consistency checking
      • terms.pl -- Term manipulation
      • strings.pl -- String utilities
      • system.pl -- System utilities
      • quintus.pl -- Quintus compatibility
      • prolog_debug.pl -- User level debugging tools
      • portray_text.pl -- Portray text
      • sort.pl
      • listing.pl -- List programs and pretty print clauses
      • prolog_stream.pl -- A stream with Prolog callbacks
      • backcomp.pl -- Backward compatibility
      • statistics.pl -- Get information about resource usage
      • stomp.pl -- STOMP client.
      • threadutil.pl -- Interactive thread utilities
      • tables.pl -- XSB interface to tables
      • snowball.pl -- The Snowball multi-lingual stemmer library
      • streampool.pl -- Input multiplexing
      • cgi.pl -- Read CGI parameters
      • redis_streams.pl -- Using Redis streams
      • redis.pl -- Redis client
      • heaps.pl -- heaps/priority queues
      • udp_broadcast.pl -- A UDP broadcast proxy
      • intercept.pl -- Intercept and signal interface
      • shell.pl -- Elementary shell commands
      • xmldsig.pl -- XML Digital signature
      • prolog_profile.pl -- Execution profiler
      • base32.pl -- Base32 encoding and decoding
      • coinduction.pl -- Co-Logic Programming
      • wfs.pl -- Well Founded Semantics interface
      • prolog_stack.pl -- Examine the Prolog stack
      • ansi_term.pl -- Print decorated text to ANSI consoles
      • tty.pl -- Terminal operations
      • test_cover.pl -- Clause coverage analysis
      • editline.pl -- BSD libedit based command line editing
      • help.pl -- Text based manual
      • optparse.pl -- command line parsing
      • prolog_trace.pl -- Print access to predicates
      • edit.pl -- Editor interface
      • xmlenc.pl -- XML encryption library
      • prolog_codewalk.pl -- Prolog code walker
      • win_menu.pl -- Console window menu
      • c14n2.pl -- C14n2 canonical XML documents
      • yaml.pl -- Process YAML data
      • prolog_wrap.pl -- Wrapping predicates
      • explain.pl -- Describe Prolog Terms
      • fastrw.pl -- Fast reading and writing of terms
      • doc_files.pl -- Create stand-alone documentation files
      • files.pl
      • double_metaphone.pl -- Phonetic string matching
      • increval.pl -- Incremental dynamic predicate modification
      • pdt_console.pl
      • readline.pl -- GNU readline interface
      • paxos.pl -- A Replicated Data Store
      • streams.pl -- Manage Prolog streams
      • prolog_autoload.pl -- Autoload all dependencies
      • prolog_metainference.pl -- Infer meta-predicate properties
      • pwp.pl -- Prolog Well-formed Pages
      • prolog_jiti.pl -- Just In Time Indexing (JITI) utilities
      • oset.pl -- Ordered set manipulation
      • rlimit.pl
      • prolog_history.pl -- Per-directory persistent commandline history
 parse_url(?URL, ?Attributes) is det
Construct or analyse a URL. URL is an atom holding a URL or a variable. Attributes is a list of components. Each component is of the format Name(Value). Defined components are:
protocol(Protocol)
The used protocol. This is, after the optional url:, an identifier separated from the remainder of the URL using :. parse_url/2 assumes the http protocol if no protocol is specified and the URL can be parsed as a valid HTTP url. In addition to the RFC-1738 specified protocols, the file protocol is supported as well.
host(Host)
Host-name or IP-address on which the resource is located. Supported by all network-based protocols.
port(Port)
Integer port-number to access on the \arg{Host}. This only appears if the port is explicitly specified in the URL. Implicit default ports (e.g., 80 for HTTP) do not appear in the part-list.
path(Path)
(File-) path addressed by the URL. This is supported for the ftp, http and file protocols. If no path appears, the library generates the path /.
search(ListOfNameValue)
Search-specification of HTTP URL. This is the part after the ?, normally used to transfer data from HTML forms that use the HTTP GET method. In the URL it consists of a www-form-encoded list of Name=Value pairs. This is mapped to a list of Prolog Name=Value terms with decoded names and values.
fragment(Fragment)
Fragment specification of HTTP URL. This is the part after the # character.

The example below illustrates all of this for an HTTP URL.

?- parse_url('http://www.xyz.org/hello?msg=Hello+World%21#x',
       P).

P = [ protocol(http),
      host('www.xyz.org'),
      fragment(x),
      search([ msg = 'Hello World!'
             ]),
      path('/hello')
    ]

By instantiating the parts-list this predicate can be used to create a URL.

ClioPatria (version V3.1.1-42-gd6a756b-DIRTY)