- 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
- 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
- library
- wrap_predicate(:Head, +Name, -Wrapped, +Body) is det
- Wrap the predicate referenced by Head using Body. Subsequent calls
to Head call the given Body term. Body may call the original
definition through Wrapped. Wrapped is a term of the shape below,
where Closure is an opaque blob.
call(Closure(A1, ...))
Name names the wrapper for inspection using predicate_property/2 or deletion using unwrap_predicate/2. If Head has a wrapper with Name the Body of the existing wrapper is updated without changing the order of the registered wrappers. The same predicate may be wrapped multiple times. Multiple wrappers are executed starting with the last registered (outermost).
The predicate referenced by Head does not need to be defined at the moment the wrapper is installed. If Head is undefined, the predicate is created instead of searched for using e.g., the auto loader.
Registered wrappers are not part of saved states (see qsave_program/2) and thus need to be re-registered, for example using initialization/1.