library

Prolog files

aggregate.pl  -- Aggregation operators on backtrackable predicates
ansi_term.pl  -- Print decorated text to ANSI consoles
apply.pl  -- Apply predicates on a list
convlist/3	Similar to maplist/3, but elements for which call(Goal, ElemIn, _) fails are omitted from ListOut.
exclude/3	Filter elements for which Goal fails.
foldl/4	Fold a list, using arguments of the list as left argument.
foldl/5	Fold a list, using arguments of the list as left argument.
foldl/6	Fold a list, using arguments of the list as left argument.
foldl/7	Fold a list, using arguments of the list as left argument.
include/3	Filter elements for which Goal succeeds.
maplist/2	True if Goal can successfully be applied on all elements of List.
maplist/3	As maplist/2, operating on pairs of elements from two lists.
maplist/4	As maplist/2, operating on triples of elements from three lists.
maplist/5	As maplist/2, operating on quadruples of elements from four lists.
partition/4	Filter elements of List according to Pred.
partition/5	Filter List according to Pred in three sets.
scanl/4	Left scan of list.
scanl/5	Left scan of list.
scanl/6	Left scan of list.
scanl/7	Left scan of list.
apply_macros.pl  -- Goal expansion rules to avoid meta-calling
archive.pl  -- Access several archive formats
arithmetic.pl  -- Extensible arithmetic
arithmetic_expression_value/2	True when Result unifies with the arithmetic result of evaluating Expression.
arithmetic_function/1	Declare a predicate as an arithmetic function.
assoc.pl  -- Binary associations
atom.pl  -- Operations on atoms
backcomp.pl  -- Backward compatibility
$apropos_match/2	True if Needle is a sub atom of Haystack.
$arch/2
$argv/1
$declare_module/3	Used in triple20 particle library.
$home/1
$module/2
$set_prompt/1	Set the prompt for the toplevel.
$strip_module/3	This used to be an internal predicate.
$version/1
C/3	Used to be generated by DCG.
at_initialization/1	Register goal only to be run if a saved state is restored.
checklist/2
concat/3
concat_atom/2	Concatenate a list of atomic values to an atom.
concat_atom/3	Concatenate a list of atomic values to an atom, inserting Seperator between each consecutive elements.
convert_time/2	Convert a time-stamp as obtained though get_time/1 into a textual representation using the C-library function ctime().
convert_time/8	Convert a time stamp, provided by get_time/1, time_file/2, etc.
current_module/2	True if Module is a module loaded from File.
current_mutex/3
current_thread/2
displayq/1	Write term ignoring operators and quote atoms.
displayq/2	Write term ignoring operators and quote atoms.
eval_license/0
export_list/2	Module exports the predicates of List.
feature/2	Control Prolog flags.
flush/0
free_variables/2	Return a list of unbound variables in Term.
hash/1	Demands PredInd to be indexed using a hash-table.
hash_term/2	If Term is ground, Hash is unified to an integer representing a hash for Term.
index/1	Prepare the predicate indicated by Head for multi-argument indexing.
lock_predicate/2
merge/3	Merge the ordered sets List1 and List2 into a new ordered list.
merge_set/3	Merge the ordered sets Set1 and Set2 into a new ordered set without duplicates.
message_queue_size/2	True if Queue holds Size terms.
proper_list/1	Old SWI-Prolog predicate to check for a list that really ends in a [].
read_clause/1
read_clause/2
read_pending_input/3
read_variables/2
read_variables/3
set_base_module/1	Set the default module from whic we inherit.
set_feature/2	Control Prolog flags.
setup_and_call_cleanup/3	Call Cleanup once after Goal is finished.
setup_and_call_cleanup/4	Call Cleanup once after Goal is finished, with Catcher unified to the reason.
sformat/2
sformat/3
string_to_atom/2	Bi-directional conversion between string and atom.
string_to_list/2	Bi-directional conversion between a string and a list of character codes.
sublist/3	Succeeds if List2 unifies with a list holding those terms for wich call(Goal, Elem) succeeds.
substring/4	Predecessor of sub_string using 1-based Offset.
sumlist/2	True when Sum is the list of all numbers in List.
thread_at_exit/1	Register Goal to be called when the calling thread exits.
trie_insert_new/3
unlock_predicate/2
write_ln/1
base32.pl  -- Base32 encoding and decoding
base64.pl  -- Base64 encoding and decoding
base64/2	Translates between plaintext and base64 encoded atom or string.
base64/3	Encode/decode list of character codes using base64.
base64_encoded/3	General the base64 encoding and decoding.
base64_encoded/4
base64url/2	Translates between plaintext and base64url encoded atom or string.
base64url/3	Encode/decode list of character codes using Base64URL.
bdb.pl  -- Berkeley DB interface
bdb_close/1	Close BerkeleyDB database indicated by DB.
bdb_close_environment/1	Close a database environment that was explicitly created using bdb_init/2.
bdb_closeall/0	Close all currently open databases and environments.
bdb_current/1	True when DB is a handle to a currently open database.
bdb_current_environment/1	True when Environment is a currently known environment.
bdb_del/3	Delete the first matching key-value pair from the database.
bdb_delall/3	Delete all matching key-value pairs from the database.
bdb_enum/3	Enumerate the whole database, unifying the key-value pairs to Key and Value.
bdb_environment_property/2	True when Property is a property of Environment.
bdb_get/3	Query the database.
bdb_getall/3	Get all values associated with Key.
bdb_init/1	Initialise a DB environment.
bdb_init/2	Initialise a DB environment.
bdb_open/4	Open File holding a database.
bdb_put/3	Add a new key-value pair to the database.
bdb_transaction/1	Start a transaction, execute Goal and terminate the transaction.
bdb_transaction/2	Start a transaction, execute Goal and terminate the transaction.
bdb_version/1	True when Version identifies the database version.
broadcast.pl  -- Event service
c14n2.pl  -- C14n2 canonical XML documents
cgi.pl  -- Read CGI parameters
charsio.pl  -- I/O on Lists of Character Codes
check.pl  -- Consistency checking
check/0	Run all consistency checks defined by checker/2.
checker/2	Register code validation routines.
list_autoload/0	Report predicates that may be auto-loaded.
list_format_errors/0	List argument errors for format/2,3.
list_format_errors/1	List argument errors for format/2,3.
list_rationals/0	List rational numbers that appear in clauses.
list_rationals/1	List rational numbers that appear in clauses.
list_redefined/0	Lists predicates that are defined in the global module user as well as in a normal module; that is, predicates for which the local definition overrules the global default definition.
list_strings/0	List strings that appear in clauses.
list_strings/1	List strings that appear in clauses.
list_trivial_fails/0	List goals that trivially fail because there is no matching clause.
list_trivial_fails/1	List goals that trivially fail because there is no matching clause.
list_undefined/0	Report undefined predicates.
list_undefined/1	Report undefined predicates.
list_void_declarations/0	List predicates that have declared attributes, but no clauses.
string_predicate/1	Multifile hook to disable list_strings/0 on the given predicate.
trivial_fail_goal/1	Multifile hook that tells list_trivial_fails/0 to accept Goal as valid.
valid_string_goal/1	Multifile hook that qualifies Goal as valid for list_strings/0.
check_installation.pl  -- Check installation issues and features
check_config_files/0	Examines the locations of config files.
check_installation/0	Check features of the installed system.
check_installation/1	As check_installation/0, but additionally returns a list of Component-Problem pairs.
test_installation/0	Run regression tests in the installed system.
test_installation/1	Run regression tests in the installed system.
update_config_files/0	Move config files from their old location to the new if the file or directory exists in the old location but not in the new.
chr.pl
codesio.pl  -- I/O on Lists of Character Codes
coinduction.pl  -- Co-Logic Programming
console_input.pl
crypt.pl
crypto.pl  -- Cryptography and authentication library
crypto_context_hash/2	Obtain the hash code of Context.
crypto_context_new/2	Context is unified with the empty context, taking into account Options.
crypto_curve_generator/2	Point is the generator of the elliptic curve Curve.
crypto_curve_order/2	Obtain the order of an elliptic curve.
crypto_curve_scalar_mult/4	R is the result of N times Point on the elliptic curve Curve.
crypto_data_context/3	Context0 is an existing computation context, and Context is the new context after hashing Data in addition to the previously hashed data.
crypto_data_decrypt/6	Decrypt the given CipherText, using the symmetric algorithm Algorithm, key Key, and initialization vector IV, to give PlainText.
crypto_data_encrypt/6	Encrypt the given PlainText, using the symmetric algorithm Algorithm, key Key, and initialization vector (or nonce) IV, to give CipherText.
crypto_data_hash/3	Hash is the hash of Data.
crypto_data_hkdf/4	Concentrate possibly dispersed entropy of Data and then expand it to the desired length.
crypto_file_hash/3	True if Hash is the hash of the content of File.
crypto_generate_prime/3	Generate a prime P with at least N bits.
crypto_is_prime/2	True iff P passes a probabilistic primality test.
crypto_modular_inverse/3	Compute the modular multiplicative inverse of the integer X.
crypto_n_random_bytes/2	Bytes is unified with a list of N cryptographically secure pseudo-random bytes.
crypto_name_curve/2	Obtain a handle for a named elliptic curve.
crypto_open_hash_stream/3	Open a filter stream on OrgStream that maintains a hash.
crypto_password_hash/2	If Hash is instantiated, the predicate succeeds iff the hash matches the given password.
crypto_password_hash/3	Derive Hash based on Password.
crypto_stream_hash/2	Unify Hash with a hash for the bytes sent to or read from HashStream.
ecdsa_sign/4	Create an ECDSA signature for Data with EC private key Key.
ecdsa_verify/4	True iff Signature can be verified as the ECDSA signature for Data, using the EC public key Key.
hex_bytes/2	Relation between a hexadecimal sequence and a list of bytes.
rsa_private_decrypt/4	RSA Public key encryption and decryption primitives.
rsa_private_encrypt/4	RSA Public key encryption and decryption primitives.
rsa_public_decrypt/4	RSA Public key encryption and decryption primitives.
rsa_public_encrypt/4	RSA Public key encryption and decryption primitives.
rsa_sign/4	Create an RSA signature for Data with private key Key.
rsa_verify/4	Verify an RSA signature for Data with public key Key.
csv.pl  -- Process CSV (Comma-Separated Values) data
csv/3	Prolog DCG to `read/write' CSV data.
csv/4	Prolog DCG to `read/write' CSV data.
csv_options/2	Compiled is the compiled representation of the CSV processing options as they may be passed into csv//2, etc.
csv_read_file/2	Read a CSV file into a list of rows.
csv_read_file/3	Read a CSV file into a list of rows.
csv_read_file_row/3	True when Row is a row in File.
csv_read_row/3	Read the next CSV record from Stream and unify the result with Row.
csv_read_stream/3	Read CSV data from Stream.
csv_write_file/2	Write a list of Prolog terms to a CSV file.
csv_write_file/3	Write a list of Prolog terms to a CSV file.
csv_write_stream/3	Write the rows in Data to Stream.
ctypes.pl  -- Character code classification
is_digit/3	Succeeds if `C' is a digit using `Base' as base and `Weight' represents its value.
is_paren/2	True if Open is the open-parenthesis of Close.
to_lower/2	Downcase a character code.
to_upper/2	Upcase a character code.
upper_lower/2	True when U is the character code of an uppercase character and L is the character code of the corresponding lowercase character.
date.pl  -- Process dates and times
debug.pl  -- Print debug messages and test assertions
dialect.pl  -- Support multiple Prolog dialects
dicts.pl  -- Dict utilities
dict_fill/4	Implementation for the dicts_to_same_keys/3 OnEmpty closure that fills new cells with a copy of ValueIn.
dict_keys/2	True when Keys is an ordered set of the keys appearing in Dict.
dicts_join/3	Join dicts in Dicts that have the same value for Key, provided they do not have conflicting values on other keys.
dicts_join/4	Join two lists of dicts (Dicts1 and Dicts2) on Key.
dicts_same_keys/2	True if List is a list of dicts that all have the same keys and Keys is an ordered set of these keys.
dicts_same_tag/2	True when List is a list of dicts that all have the tag Tag.
dicts_slice/3	DictsOut is a list of Dicts only containing values for Keys.
dicts_to_compounds/4	True when Dicts and Compounds are lists of the same length and each element of Compounds is a compound term whose arguments represent the values associated with the corresponding keys in Keys.
dicts_to_same_keys/3	DictsOut is a copy of DictsIn, where each dict contains all keys appearing in all dicts of DictsIn.
dif.pl  -- The dif/2 constraint
doc_files.pl  -- Create stand-alone documentation files
doc_http.pl  -- Documentation server
doc_latex.pl  -- PlDoc LaTeX backend
double_metaphone.pl  -- Phonetic string matching
edinburgh.pl  -- Some traditional Edinburgh predicates
edit.pl  -- Editor interface
editline.pl  -- BSD libedit based command line editing
error.pl  -- Error generating support
current_type/3	True when Type is a currently defined type and Var satisfies Type of the body term Body succeeds.
domain_error/2	The argument is of the proper type, but has a value that is outside the supported values.
existence_error/2	Term is of the correct type and correct domain, but there is no existing (external) resource that is represented by it.
existence_error/3	Term is of the correct type and correct domain, but there is no existing (external) resource that is represented by it in the provided set.
has_type/2	True if Term satisfies Type.
instantiation_error/1	An argument is under-instantiated.
is_of_type/2	True if Term satisfies Type.
must_be/2	True if Term satisfies the type constraints for Type.
permission_error/3	It is not allowed to perform Action on the object Term that is of the given Type.
representation_error/1	A representation error indicates a limitation of the implementation.
resource_error/1	A goal cannot be completed due to lack of resources.
syntax_error/1	A text has invalid syntax.
type_error/2	Tell the user that Term is not of the expected Type.
uninstantiation_error/1	An argument is over-instantiated.
explain.pl  -- Describe Prolog Terms
fastrw.pl  -- Fast reading and writing of terms
files.pl
can_open_file/2	Succeeds if the user has access to `File' in mode `Mode'.
chdir/1	Change Working Directory.
filesex.pl  -- Extended operations on files
gensym.pl  -- Generate unique symbols
git.pl  -- Run GIT commands
hash_stream.pl  -- Maintain a hash on a stream
heaps.pl  -- heaps/priority queues
add_to_heap/4	Adds Key with priority Priority to Heap0, constructing a new heap in Heap.
delete_from_heap/4	Deletes Key from Heap0, leaving its priority in Priority and the resulting data structure in Heap.
empty_heap/1	True if Heap is an empty heap.
get_from_heap/4	Retrieves the minimum-priority pair Priority-Key from Heap0.
heap_size/2	Determines the number of elements in Heap.
heap_to_list/2	Constructs a list List of Priority-Element terms, ordered by (ascending) priority.
is_heap/1	Returns true if X is a heap.
list_to_heap/2	If List is a list of Priority-Element terms, constructs a heap out of List.
merge_heaps/3	Merge the two heaps Heap0 and Heap1 in Heap.
min_of_heap/3	Unifies Key with the minimum-priority element of Heap and Priority with its priority value.
min_of_heap/5	Gets the two minimum-priority elements from Heap.
singleton_heap/3	True if Heap is a heap with the single element Priority-Key.
help.pl  -- Text based manual
hotfix.pl  -- Load hotfixes into executables
intercept.pl  -- Intercept and signal interface
intercept/3	Run Goal as call/1.
intercept/4	Similar to intercept/3, but the copy of Handler is called as call(Copy,Arg), which allows passing large context arguments or arguments subject to unification or destructive assignment.
intercept_all/4	True when List contains all instances of Template that have been sent using send_signal/1 where the argument unifies with Ball.
nb_intercept_all/4	As intercept_all/4, but backtracing inside Goal does not reset List.
send_signal/1	If this predicate is called from a sub-goal of intercept/3, execute the associated Handler of the intercept/3 environment.
send_silent_signal/1	As send_signal/1, but succeed silently if there is no matching intercept environment.
iostream.pl  -- Utilities to deal with streams
iso_639.pl
isub.pl  -- isub: a string similarity measure
jpl.pl  -- A Java interface for SWI Prolog 7.x
lazy_lists.pl  -- Lazy list handling
listing.pl  -- List programs and pretty print clauses
lists.pl  -- List Manipulation
append/2	Concatenate a list of lists.
append/3	List1AndList2 is the concatenation of List1 and List2.
delete/3	Delete matching elements from a list.
flatten/2	Is true if FlatList is a non-nested version of NestedList.
intersection/3	True if Set3 unifies with the intersection of Set1 and Set2.
is_set/1	True if Set is a proper list without duplicates.
last/2	Succeeds when Last is the last element of List.
list_to_set/2	True when Set has the same elements as List in the same order.
max_list/2	True if Max is the largest number in List.
max_member/2	True when Max is the largest member in the standard order of terms.
member/2	True if Elem is a member of List.
min_list/2	True if Min is the smallest number in List.
min_member/2	True when Min is the smallest member in the standard order of terms.
nextto/3	True if Y directly follows X in List.
nth0/3	True when Elem is the Index'th element of List.
nth0/4	Select/insert element at index.
nth1/3	Is true when Elem is the Index'th element of List.
nth1/4	As nth0/4, but counting starts at 1.
numlist/3	List is a list [Low, Low+1, ... High].
permutation/2	True when Xs is a permutation of Ys.
prefix/2	True iff Part is a leading substring of Whole.
proper_length/2	True when Length is the number of elements in the proper list List.
reverse/2	Is true when the elements of List2 are in reverse order compared to List1.
same_length/2	Is true when List1 and List2 are lists with the same number of elements.
select/3	Is true when List1, with Elem removed, results in List2.
select/4	Select from two lists at the same positon.
selectchk/3	Semi-deterministic removal of first element in List that unifies with Elem.
selectchk/4	Semi-deterministic version of select/4.
subset/2	True if all elements of SubSet belong to Set as well.
subtract/3	Delete all elements in Delete from Set.
sum_list/2	Sum is the result of adding all numbers in List.
union/3	True if Set3 unifies with the union of the lists Set1 and Set2.
main.pl  -- Provide entry point for scripts
make.pl  -- Reload modified source files
mallocinfo.pl  -- Memory allocation details
md5.pl  -- MD5 hashes
memfile.pl
modules.pl  -- Module utility predicates
nb_rbtrees.pl  -- Non-backtrackable operations on red black trees
nb_set.pl  -- Non-backtrackable sets
obfuscate.pl  -- Code obfuscating
occurs.pl  -- Finding and counting sub-terms
contains_term/2	Succeeds if Sub is contained in Term (=, deterministically).
contains_var/2	Succeeds if Sub is contained in Term (==, deterministically).
free_of_term/2	Succeeds of Sub does not unify to any subterm of Term.
free_of_var/2	Succeeds of Sub is not equal (==) to any subterm of Term.
occurrences_of_term/3	Count the number of SubTerms in Term.
occurrences_of_var/3	Count the number of SubTerms in Term.
sub_term/2	Generates (on backtracking) all subterms of Term.
sub_var/2	Generates (on backtracking) all subterms (==) of Term.
odbc.pl
operators.pl  -- Manage operators
option.pl  -- Option list processing
optparse.pl  -- command line parsing
ordsets.pl  -- Ordered set manipulation
is_ordset/1	True if Term is an ordered set.
list_to_ord_set/2	Transform a list into an ordered set.
ord_add_element/3	Insert an element into the set.
ord_del_element/3	Delete an element from an ordered set.
ord_disjoint/2	True if Set1 and Set2 have no common elements.
ord_empty/1	True when List is the empty ordered set.
ord_intersect/2	True if both ordered sets have a non-empty intersection.
ord_intersect/3	Intersection holds the common elements of Set1 and Set2.
ord_intersection/2	Intersection of a powerset.
ord_intersection/3	Intersection holds the common elements of Set1 and Set2.
ord_intersection/4	Intersection and difference between two ordered sets.
ord_memberchk/2	True if Element is a member of OrdSet, compared using ==.
ord_selectchk/3	Selectchk/3, specialised for ordered sets.
ord_seteq/2	True if Set1 and Set2 have the same elements.
ord_subset/2	Is true if all elements of Sub are in Super.
ord_subtract/3	Diff is the set holding all elements of InOSet that are not in NotInOSet.
ord_symdiff/3	Is true when Difference is the symmetric difference of Set1 and Set2.
ord_union/2	True if Union is the union of all elements in the superset SetOfSets.
ord_union/3	Union is the union of Set1 and Set2.
ord_union/4	True iff ord_union(Set1, Set2, Union) and ord_subtract(Set2, Set1, New).
oset.pl  -- Ordered set manipulation
pairs.pl  -- Operations on key-value lists
paxos.pl  -- A Replicated Data Store
paxos_get/1	Equivalent to paxos_key(Term,Key), pasox_get(Key,Term).
paxos_get/2	unifies Term with the entry retrieved from the Paxon's ledger.
paxos_get/3	unifies Term with the entry retrieved from the Paxon's ledger.
paxos_initialize/1	Initialize this Prolog process as a paxos node.
paxos_ledger_hook/5	Hook called for all operations on the ledger.
paxos_on_change/2	Executes the specified Goal when Key changes.
paxos_on_change/3	Executes the specified Goal when Key changes.
paxos_property/1	True if Property is a current property for the paxos network.
paxos_quorum_ask/4	Ask the paxos forum for their opinion.
paxos_replicate_key/3	Replicate a Key to Nodes.
paxos_set/1	Equivalent to paxos_key(Term,Key), pasox_set(Key,Term).
paxos_set/2	negotiates to have Key-Value recorded in the ledger for each of the quorum's members.
paxos_set/3	negotiates to have Key-Value recorded in the ledger for each of the quorum's members.
pcre.pl  -- Perl compatible regular expression matching for SWI-Prolog
re_compile/3	Compiles Pattern to a Regex blob of type regex (see blob/2).
re_flush/0	Clean pattern and replacement caches.
re_foldl/6	Fold all matches of Regex on String.
re_match/2	Succeeds if String matches Regex.
re_match/3	Succeeds if String matches Regex.
re_matchsub/4	Match String against Regex.
re_replace/4	Replace matches of the regular expression Pattern in String with With.
re_split/3	Split String using the regular expression Pattern.
re_split/4	Split String using the regular expression Pattern.
pdt_console.pl
pengines.pl  -- Pengines: Web Logic Programming Made Easy
pengines_io.pl  -- Provide Prolog I/O for HTML clients
pengines_sandbox.pl  -- Declare Pengine interaction sandbox-safe
safe_meta/2	Declare the pengine meta-predicates as safe.
safe_primitive/1	Declare the core pengine operations as safe.
persistency.pl  -- Provide persistent dynamic predicates
current_persistent_predicate/1	True if PI is a predicate that provides access to the persistent database DB.
db_attach/2	Use File as persistent database for the calling module.
db_attached/1	True if the context module attached to the persistent database File.
db_detach/0	Detach persistency from the calling module and delete all persistent clauses from the Prolog database.
db_sync/1	Synchronise database with the associated file.
db_sync_all/1	Sync all registered databases.
persistent/1	Declare dynamic database terms.
pio.pl  -- Pure I/O
pldoc.pl  -- Process source documentation
plunit.pl  -- Unit Testing
begin_tests/1	Start a test-unit.
begin_tests/2	Start a test-unit.
end_tests/1	Close a unit-test module.
load_test_files/1	Load .plt test-files related to loaded source-files.
run_tests/0	Run tests and report about the results.
run_tests/1	Run tests and report about the results.
running_tests/0	Print the currently running test.
set_test_options/1	Specifies how to deal with test suites.
test_report/1	Produce reports on test results after the run.
message_hook/3	Redefine printing some messages.
porter_stem.pl
portray_text.pl  -- Portray text
pprint.pl  -- Pretty Print Prolog terms
predicate_options.pl  -- Access and analyse predicate options
process.pl  -- Create processes and redirect I/O
prolog_autoload.pl  -- Autoload all dependencies
autoload_all/0	Force all necessary autoloading to be done now.
autoload_all/1	Force all necessary autoloading to be done now.
prolog_breakpoints.pl  -- Manage Prolog break-points
prolog_clause.pl  -- Get detailed source-information about a clause
prolog_code.pl  -- Utilities for reasoning about code
prolog_codewalk.pl  -- Prolog code walker
prolog_colour.pl  -- Prolog syntax colouring support.
prolog_config.pl  -- Provide configuration information
prolog_format.pl  -- Analyse format specifications
prolog_history.pl  -- Per-directory persistent commandline history
prolog_install.pl  -- Installation support predicates
prolog_jiti.pl  -- Just In Time Indexing (JITI) utilities
prolog_metainference.pl  -- Infer meta-predicate properties
infer_meta_predicate/2	True when MetaSpec is a meta-predicate specifier for the predicate Head.
inferred_meta_predicate/2	True when MetaSpec is an inferred meta-predicate specification for Head.
prolog_pack.pl  -- A package manager for Prolog
prolog_server.pl
prolog_source.pl  -- Examine Prolog source-files
prolog_stack.pl  -- Examine the Prolog stack
prolog_stream.pl  -- A stream with Prolog callbacks
prolog_trace.pl  -- Print access to predicates
trace/1	Print passes through ports of specified predicates.
trace/2	Print passes through ports of specified predicates.
tracing/2	True if Spec is traced using Ports.
prolog_wrap.pl  -- Wrapping predicates
prolog_xref.pl  -- Prolog cross-referencer data collection
protobufs.pl  -- Google's Protocol Buffers
pure_input.pl  -- Pure Input from files and streams
pwp.pl  -- Prolog Well-formed Pages
qpforeign.pl  -- Quintus compatible foreign loader
qsave.pl  -- Save current program as a state or executable
quasi_quotations.pl  -- Define Quasi Quotation syntax
quintus.pl  -- Quintus compatibility
random.pl  -- Random numbers
getrand/1	Query/set the state of the random generator.
maybe/0	Succeed/fail with equal probability (variant of maybe/1).
maybe/1	Succeed with probability P, fail with probability 1-P.
maybe/2	Succeed with probability K/N (variant of maybe/1).
random/1	Binds R to a new random float in the open interval (0.0,1.0).
random/3	Generate a random integer or float in a range.
random_between/3	Binds R to a random integer in [L,U] (i.e., including both L and U).
random_member/2	X is a random member of List.
random_perm2/4	Does X=A,Y=B or X=B,Y=A with equal probability.
random_permutation/2	Permutation is a random permutation of List.
random_select/3	Randomly select or insert an element.
randseq/3	S is a list of K unique random integers in the range 1..N.
randset/3	S is a sorted list of K unique random integers in the range 1..N.
setrand/1	Query/set the state of the random generator.
rbtrees.pl  -- Red black trees
rdf.pl  -- RDF/XML parser
rdf_diagram.pl  -- Show graphical representation of a set of triples
rdf_parser.pl
rdf_triple.pl  -- Create triples from intermediate representation
rdf_write.pl  -- Write RDF/XML from a list of triples
readline.pl  -- GNU readline interface
readln.pl  -- Read line as list of tokens
readutil.pl  -- Read utilities
record.pl  -- Access compound arguments by name
current_record/2	True if Name is the name of a record defined in the module associated with Term and Term is the user-provided record declaration.
current_record_predicate/2	True if PI is the predicate indicator for an access predicate to Record.
record/1	Define access predicates for a compound-term.
rewrite.pl
rewrite_term.pl
rlimit.pl
saml.pl  -- SAML Authentication
sandbox.pl  -- Sandboxed Prolog code
settings.pl  -- Setting management
convert_setting_text/3	Converts from textual form to Prolog Value.
current_setting/1	True if Setting is a currently defined setting.
list_settings/0	List settings to current_output.
list_settings/1	List settings to current_output.
load_settings/1	Load local settings from File.
load_settings/2	Load local settings from File.
restore_setting/1	Restore the value of setting Name to its default.
save_settings/0	Save modified settings to File.
save_settings/1	Save modified settings to File.
set_setting/2	Change a setting.
set_setting_default/2	Change the default for a setting.
setting/2	True when Name is a currently defined setting with Value.
setting/4	Define a setting.
setting_property/2	Query currently defined settings.
sgml.pl  -- SGML, XML and HTML parser
sgml_write.pl  -- XML/SGML writer module
sha.pl  -- SHA secure hashes
shell.pl  -- Elementary shell commands
shlib.pl  -- Utility library for loading foreign objects (DLLs, shared objects)
snowball.pl  -- The Snowball multi-lingual stemmer library
socket.pl  -- Network socket (TCP and UDP) library
solution_sequences.pl  -- Modify solution sequences
sort.pl
ssl.pl  -- Secure Socket Layer (SSL) library
statistics.pl  -- Get information about resource usage
streaminfo.pl
streampool.pl  -- Input multiplexing
syslog.pl  -- Unix syslog interface
system.pl  -- System utilities
lock_predicate/1	Transform a predicate into a system predicate.
system_mode/1	Switch the system into system or user mode.
system_module/0	Any predicate defined after this declaraction uptil the end of the file will become a system predicate.
unlock_predicate/1	Transform a system predicate into a normal system predicate.
table.pl
table_util.pl  -- Tabular file handling utilities
term_to_json.pl
terms.pl  -- Term manipulation
test_cover.pl  -- Clause cover analysis
test_wizard.pl  -- Test Generation Wizard
thread.pl  -- High level thread primitives
thread_pool.pl  -- Resource bounded thread management
threadutil.pl  -- Interactive thread utilities
time.pl  -- Time and alarm library
tty.pl  -- Terminal operations
udp_broadcast.pl  -- A UDP broadcast proxy
ugraphs.pl  -- Graph manipulation library
uid.pl  -- User and group management on Unix systems
unicode.pl  -- Unicode string handling
unix.pl  -- Unix specific operations
detach_IO/0	Detach I/O similar to detach_IO/1.
detach_IO/1	This predicate is intended to create Unix deamon processes.
dup/2	Interface to Unix dup2(), copying the underlying filedescriptor and thus making both streams point to the same underlying object.
exec/1	Replace the running program by starting Command.
fork/1	Clone the current process into two branches.
fork_exec/1	Fork (as fork/1) and exec (using exec/1) the child immediately.
kill/2	Deliver a software interrupt to the process with identifier Pid using software-interrupt number Signal.
pipe/2	Create a communication-pipe.
prctl/1	Access to Linux process control operations.
sysconf/1	Access system configuration.
wait/2	Wait for a child to change status.
uri.pl  -- Process URIs
iri_normalized/2	NormalizedIRI is the normalized form of IRI.
iri_normalized/3	NormalizedGlobalIRI is the normalized global version of IRI.
uri_authority_components/2	Break-down the authority component of a URI.
uri_authority_data/3	Provide access the uri_authority structure.
uri_components/2	Break a URI into its 5 basic components according to the RFC-3986 regular expression:.
uri_data/3	Provide access the uri_component structure.
uri_data/4	NewComponents is the same as Components with Field set to Data.
uri_encoded/3	Encoded is the URI encoding for Value.
uri_file_name/2	Convert between a URI and a local file_name.
uri_iri/2	Convert between a URI, encoded in US-ASCII and an IRI.
uri_is_global/1	True if URI has a scheme.
uri_normalized/2	NormalizedURI is the normalized form of URI.
uri_normalized/3	NormalizedGlobalURI is the normalized global version of URI.
uri_normalized_iri/2	As uri_normalized/2, but percent-encoding is translated into IRI Unicode characters.
uri_normalized_iri/3	NormalizedGlobalIRI is the normalized global IRI of URI.
uri_query_components/2	Perform encoding and decoding of an URI query string.
uri_resolve/3	Resolve a possibly local URI relative to Base.
url.pl  -- Analysing and constructing URL
file_name_to_url/2	Translate between a filename and a file:// URL.
global_url/3	Translate a possibly relative URL into an absolute one.
http_location/2	Construct or analyze an HTTP location.
is_absolute_url/1	True if URL is an absolute URL.
parse_url/2	Construct or analyse a URL.
parse_url/3	Similar to parse_url/2 for relative URLs.
parse_url_search/2	Construct or analyze an HTTP search specification.
set_url_encoding/2	Query and set the encoding for URLs.
url_iri/2	Convert between a URL, encoding in US-ASCII and an IRI.
www_form_encode/2	En/decode to/from application/x-www-form-encoded.
utf8.pl  -- UTF-8 encoding/decoding on lists of character codes.
uuid.pl  -- Universally Unique Identifier (UUID) Library
varnumbers.pl  -- Utilities for numbered terms
vm.pl  -- SWI-Prolog Virtual Machine utilities
wfs.pl  -- Well Founded Semantics interface
when.pl  -- Conditional coroutining
win_menu.pl  -- Console window menu
writef.pl  -- Old-style formatted write
www_browser.pl  -- Open a URL in the users browser
xmldsig.pl  -- XML Digital signature
xmlenc.pl  -- XML encryption library
xpath.pl  -- Select nodes in an XML DOM
xsdp_types.pl  -- XML-Schema primitive types
yall.pl  -- Lambda expressions
yaml.pl  -- Process YAML data
zip.pl  -- Access resource ZIP archives
zlib.pl  -- Zlib wrapper for SWI-Prolog