- swipl-7.5.1
- library
- doc_http.pl -- Documentation server
- pldoc.pl -- Process source documentation
- lists.pl -- List Manipulation
- error.pl -- Error generating support
- pairs.pl -- Operations on key-value lists
- apply.pl -- Apply predicates on a list
- memfile.pl
- shlib.pl -- Utility library for loading foreign objects (DLLs, shared objects)
- operators.pl -- Manage operators
- debug.pl -- Print debug messages and test assertions
- option.pl -- Option list processing
- prolog_source.pl -- Examine Prolog source-files
- socket.pl -- Network socket (TCP and UDP) library
- thread_pool.pl -- Resource bounded thread management
- rbtrees.pl -- Red black trees
- gensym.pl -- Generate unique symbols
- readutil.pl -- Read utilities
- url.pl -- Analysing and constructing URL
- utf8.pl -- UTF-8 encoding/decoding on lists of character codes.
- uri.pl -- Process URIs
- settings.pl -- Setting management
- broadcast.pl -- Event service
- arithmetic.pl -- Extensible arithmetic
- sgml.pl -- SGML, XML and HTML parser
- iostream.pl -- Utilities to deal with streams
- dialect.pl -- Support multiple Prolog dialects
- quasi_quotations.pl -- Define Quasi Quotation syntax
- pure_input.pl -- Pure Input from files and streams
- time.pl -- Time and alarm library
- base64.pl -- Base64 encoding and decoding
- aggregate.pl -- Aggregation operators on backtrackable predicates
- ordsets.pl -- Ordered set manipulation
- oset.pl -- Ordered set manipulation
- www_browser.pl -- Open a URL in the users browser
- process.pl -- Create processes and redirect I/O
- prolog_colour.pl -- Prolog syntax colouring support.
- prolog_xref.pl -- Prolog cross-referencer data collection
- predicate_options.pl -- Access and analyse predicate options
- prolog_clause.pl -- Get detailed source-information about a clause
- occurs.pl -- Finding and counting sub-terms
- listing.pl -- List programs and pretty print clauses
- record.pl -- Access compound arguments by name
- assoc.pl -- Binary associations
- ugraphs.pl -- Graph manipulation library
- filesex.pl -- Extended operations on files
- xpath.pl -- Select nodes in an XML DOM
- prolog_pack.pl -- A package manager for Prolog
- archive.pl -- Access several archive formats
- rdf.pl
- rdf_parser.pl
- rewrite.pl
- quintus.pl -- Quintus compatibility
- rdf_triple.pl -- Create triples from intermediate representation
- sgml_write.pl -- XML/SGML writer module
- xsdp_types.pl -- XML-Schema primitive types
- thread.pl -- High level thread primitives
- git.pl -- Run GIT commands
- ctypes.pl -- Character code classification
- sha.pl -- SHA secure hashes
- crypt.pl
- persistency.pl -- Provide persistent dynamic predicates
- tty.pl -- Terminal operations
- terms.pl -- Term manipulation
- snowball.pl -- The Snowball multi-lingual stemmer library
- sandbox.pl -- Sandboxed Prolog code
- prolog_format.pl -- Analyse format specifications
- when.pl -- Conditional coroutining
- apply_macros.pl -- Goal expansion rules to avoid meta-calling
- double_metaphone.pl -- Phonetic string matching
- porter_stem.pl
- nb_set.pl -- Non-backtrackable sets
- solution_sequences.pl -- Modify solution sequences
- uuid.pl -- Universally Unique Identifier (UUID) Library
- system.pl -- System utilities
- edinburgh.pl -- Some traditional Edinburgh predicates
- helpidx.pl
- explain.pl -- Describe Prolog Terms
- edit.pl -- Editor interface
- make.pl -- Reload modified source files
- check.pl -- Consistency checking
- prolog_codewalk.pl -- Prolog code walker
- prolog_metainference.pl -- Infer meta-predicate properties
- prolog_breakpoints.pl -- Manage Prolog break-points
- threadutil.pl -- Interactive thread utilities
- statistics.pl -- Get information about resource usage
- help.pl
- backcomp.pl -- Backward compatibility
- rdf_write.pl -- Write RDF/XML from a list of triples
- date.pl -- Process dates and times
- zlib.pl -- Zlib wrapper for SWI-Prolog
- rdf_ntriples.pl -- RDF N-triples parser (obsolete)
- csv.pl -- Process CSV (Comma-Separated Values) data
- dif.pl -- The dif/2 constraint
- ssl.pl -- Secure Socket Layer (SSL) library
- crypto.pl -- Cryptography and authentication library
- ansi_term.pl -- Print decorated text to ANSI consoles
- prolog_stack.pl -- Examine the Prolog stack
- pengines.pl -- Pengines: Web Logic Programming Made Easy
- charsio.pl -- I/O on Lists of Character Codes
- modules.pl -- Module utility predicates
- term_to_json.pl
- editline.pl -- BSD libedit based command line editing
- console_input.pl
- prolog_history.pl -- Per-directory persistent commandline history
- base32.pl -- Base32 encoding and decoding
- table.pl
- xmlenc.pl -- XML encryption library
- bdb.pl -- Berkeley DB interface
- chr.pl
- sort.pl
- doc_files.pl -- Create stand-alone documentation files
- odbc.pl
- unicode.pl -- Unicode string handling
- writef.pl -- Old-style formatted write
- udp_broadcast.pl -- A UDP Broadcast Bridge
- plunit.pl -- Unit Testing
- readline.pl -- GNU readline interface
- cgi.pl -- Read CGI parameters
- uid.pl -- User and group management on Unix systems
- protobufs.pl -- Google's Protocol Buffers
- yall.pl -- Lambda expressions
- optparse.pl -- command line parsing
- tabling.pl -- Tabled execution (SLG WAM)
- random.pl -- Random numbers
- streampool.pl
- pengines_io.pl -- Provide Prolog I/O for HTML clients
- prolog_stream.pl -- A stream with Prolog callbacks
- unix.pl -- Unix specific operations
- dicts.pl -- Dict utilities
- xmldsig.pl -- XML Digital signature
- c14n2.pl -- C14n2 canonical XML documents
- pdt_console.pl
- isub.pl -- isub: a string similarity measure
- shell.pl -- Elementary shell commands
- doc_latex.pl -- PlDoc LaTeX backend
- qsave.pl -- Save current program as a state or executable
- prolog_autoload.pl -- Autoload all dependencies
- pwp.pl -- Prolog Well-formed Pages
- md5.pl -- MD5 hashes
- files.pl
- syslog.pl -- Unix syslog interface
- test_cover.pl -- Clause cover analysis
- main.pl -- Provide entry point for scripts
- varnumbers.pl -- Utilities for numbered terms
- win_menu.pl -- Console window menu
- hash_stream.pl -- Maintain a hash on a stream
- rlimit.pl
- library
- bdb_open(+File, +Mode, -DB, +Options) is det
- Open File holding a database. Mode is one of
read
, providing read-only access orupdate
, providing read/write access. Options is a list of options. Supported options are below. The boolean options are passed as flags toDB->open()
. The option name is derived from the flag name by stripping theDB_
prefix and converting to lower case. Consult the Berkeley DB documentation for details.- auto_commit(+Boolean)
- Open the database in a transaction. Ensures no database is created in case of failure.
- create(+Boolean)
- Create a new database of the database does not exist.
- dup(+Boolean)
- Do/do not allow for duplicate values on the same key. Default is not to allow for duplicates.
- excl(+Boolean)
- Combined with
create(true)
, fail if the database already exists. - multiversion(+Boolean)
- Open the database with support for multiversion concurrency control. The flag is passed, but no further support is provided yet.
- nommap(+Boolean)
- Do not map this database into process memory.
- rdonly(+Boolean)
- Open the database for reading only.
- read_uncommitted(+Boolean)
- Read operations on the database may request the return of modified but not yet committed data. This flag must be specified on all DB handles used to perform dirty reads or database updates, otherwise requests for dirty reads may not be honored and the read may block.
- thread(+Boolean)
- Enable access to the database handle from multiple threads. This is default if the corresponding flag is specified for the environment.
- truncate(+Boolean)
- When specified, truncate the underlying file, i.e., start with an empty database.
- database(+Name)
- If File contains multiple databases, address the named database in the file. A DB file can only consist of multiple databases if the bdb_open/4 call that created it specified this argument. Each database in the file has its own characteristics.
- environment(+Environment)
- Specify a database environment created using bdb_init/2.
- key(+Type)
- value(+Type)
- Specify the type of the key or value. Allowed values are:
- term
- Key/Value is a Prolog term (default). This type allows for representing arbitrary Prolog data in both keys and value. The representation is space-efficient, but Prolog specific. See PL_record_external() in the SWI-Prolog Reference Manual for details on the representation. The other representations are more neutral. This implies they are more stable and sharing the DB with other languages is feasible.
- atom
- Key/Value is an atom. The text is represented as a UTF-8 string and its length.
- c_blob
- Key/Value is a blob (sequence of bytes). On output, a Prolog string is used. The input is either a Prolog string or an atom holding only characters in the range [0..255].
- c_string
- Key/Value is an atom. The text is represented as a C 0-terminated UTF-8 string.
- c_long
- Key/Value is an integer. The value is represented as a native C long in machine byte-order.
- Arguments:
-
DB - is unified with a blob of type db
. Database handles are subject to atom garbage collection. - Errors
- -
permission_error(access, bdb_environment, Env)
if an environment is not thread-enabled and accessed from multiple threads.