library

Prolog files

aggregate.pl  -- Aggregation operators on backtrackable predicates
ansi_term.pl  -- Print decorated text to ANSI consoles
ansi_format/3	Format text with ANSI attributes.
ansi_get_color/2	Obtain the RGB color for an ANSI color parameter.
ansi_hyperlink/2	Create a hyperlink for a terminal emulator.
ansi_hyperlink/3	Create a hyperlink for a terminal emulator.
console_color/2	Hook that allows for mapping abstract terms to concrete ANSI attributes.
message_line_element/2	Hook implementation that deals with ansi(+Attr, +Fmt, +Args) in message specifications.
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 an ensemble of m (0 <= m <= 4) lists of length n head-to-tail ("fold-left"), using columns of m list elements as arguments for Goal.
foldl/5	Fold an ensemble of m (0 <= m <= 4) lists of length n head-to-tail ("fold-left"), using columns of m list elements as arguments for Goal.
foldl/6	Fold an ensemble of m (0 <= m <= 4) lists of length n head-to-tail ("fold-left"), using columns of m list elements as arguments for Goal.
foldl/7	Fold an ensemble of m (0 <= m <= 4) lists of length n head-to-tail ("fold-left"), using columns of m list elements as arguments for Goal.
include/3	Filter elements for which Goal succeeds.
maplist/2	True if Goal is successfully applied on all matching elements of the list.
maplist/3	True if Goal is successfully applied on all matching elements of the list.
maplist/4	True if Goal is successfully applied on all matching elements of the list.
maplist/5	True if Goal is successfully applied on all matching elements of the list.
partition/4	Filter elements of List according to Pred.
partition/5	Filter List according to Pred in three sets.
scanl/4	Scan an ensemble of m (0 <= m <= 4) lists of length n head-to-tail ("scan-left"), using columns of m list elements as arguments for Goal.
scanl/5	Scan an ensemble of m (0 <= m <= 4) lists of length n head-to-tail ("scan-left"), using columns of m list elements as arguments for Goal.
scanl/6	Scan an ensemble of m (0 <= m <= 4) lists of length n head-to-tail ("scan-left"), using columns of m list elements as arguments for Goal.
scanl/7	Scan an ensemble of m (0 <= m <= 4) lists of length n head-to-tail ("scan-left"), using columns of m list elements as arguments for Goal.
apply_macros.pl  -- Goal expansion rules to avoid meta-calling
apply_macros_sentinel/0	Used to detect that library(apply_macros) is loaded into the current context explicitly.
expand_phrase/2	Provide goal-expansion for PhraseGoal.
expand_phrase/4	Provide goal-expansion for PhraseGoal.
arithmetic.pl  -- Extensible arithmetic
assoc.pl  -- Binary associations
assoc_to_keys/2	True if Keys is the list of keys in Assoc.
assoc_to_list/2	Translate Assoc to a list Pairs of Key-Value pairs.
assoc_to_values/2	True if Values is the list of values in Assoc.
del_assoc/4	True if Key-Value is in Assoc0.
del_max_assoc/4	True if Key-Value is in Assoc0 and Key is the greatest key.
del_min_assoc/4	True if Key-Value is in Assoc0 and Key is the smallest key.
empty_assoc/1	Is true if Assoc is the empty association list.
gen_assoc/3	True if Key-Value is an association in Assoc.
get_assoc/3	True if Key-Value is an association in Assoc.
get_assoc/5	True if Key-Val0 is in Assoc0 and Key-Val is in Assoc.
is_assoc/1	True if Assoc is an association list.
list_to_assoc/2	Create an association from a list Pairs of Key-Value pairs.
map_assoc/2	True if Pred(Value) is true for all values in Assoc.
map_assoc/3	Map corresponding values.
max_assoc/3	True if Key-Value is in Assoc and Key is the largest key.
min_assoc/3	True if Key-Value is in assoc and Key is the smallest key.
ord_list_to_assoc/2	Assoc is created from an ordered list Pairs of Key-Value pairs.
put_assoc/4	Assoc is Assoc0, except that Key is associated with Value.
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.
$sig_atomic/1	Execute Goal without processing signals.
$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.
call_cleanup/3	Call Cleanup with an indication of the reason unified to Catcher.
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 Separator 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_history/6
read_pending_input/3
read_variables/2
read_variables/3
set_base_module/1	Set the default module from which 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 which 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	Equivalent to base64_encoded/3 using the options as(atom) and encoding(iso_latin_1).
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.
broadcast.pl  -- Event service
charsio.pl  -- I/O on Lists of Character Codes
check.pl  -- Consistency checking
check_installation.pl  -- Check installation issues and features
codesio.pl  -- I/O on Lists of Character Codes
format_to_codes/3	Use format/2 to write to a list of character codes.
format_to_codes/4	Use format/2 to write to a difference list of character codes.
open_codes_stream/2	Open Codes as an input stream.
read_from_codes/2	Read Codes into Term.
read_term_from_codes/3	Read Codes into Term.
with_output_to_codes/2	Run Goal with as once/1.
with_output_to_codes/3	Run Goal with as once/1.
with_output_to_codes/4	As with_output_to_codes/3, but Stream is unified with the temporary stream.
write_term_to_codes/3	True when Codes is a string that matches the output of write_term/3 using Options.
write_term_to_codes/4	True when Codes\Tail is a difference list containing the character codes that matches the output of write_term/3 using Options.
write_to_codes/2	Codes is a list of character codes produced by write/1 on Term.
write_to_codes/3	Codes is a difference-list of character codes produced by write/1 on Term.
coinduction.pl  -- Co-Logic Programming
console_input.pl
complete_input/4	Compute auto completions for the input line BeforeCursor+AfterCursor.
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
date.pl  -- Process dates and times
date_time_value/3	Extract values from a date-time structure.
day_of_the_week/2	Computes the day of the week for a given date.
day_of_the_year/2	Computes the day of the year for a given date.
parse_time/2	Stamp is a timestamp created from parsing Text using the representation Format.
parse_time/3	Stamp is a timestamp created from parsing Text using the representation Format.
debug.pl  -- Print debug messages and test assertions
dialect.pl  -- Support multiple Prolog dialects
expects_dialect/1	Tell Prolog all subsequent code to the end of the file or the next :- expects_dialect/1 directive is written for the indicated Dialect.
source_exports/2	True if Source exports Export.
dicts.pl  -- Dict utilities
dif.pl  -- The dif/2 constraint
dif/2	Constraint that expresses that Term1 and Term2 never become identical (==/2).
edinburgh.pl  -- Some traditional Edinburgh predicates
debug/0	Switch on/off debug mode.
display/1	Write a term, ignoring operators and special syntax constructs such as brace terms ({a}) and lists ([a,b,c]).
display/2	Write a term, ignoring operators and special syntax constructs such as brace terms ({a}) and lists ([a,b,c]).
fileerrors/2	Query and change the fileerrors flag.
nodebug/0	Switch on/off debug mode.
reconsult/1	Load source file(s), wiping the old content first.
unknown/2	Edinburgh Prolog predicate for dealing dealing with undefined procedures.
edit.pl  -- Editor interface
edit/0	Edit associated or script file.
edit/1	Edit indicated object.
edit_command/2	This predicate should specify the shell-command called to invoke the user's editor.
locate/2	Locate object from the specified location.
locate/3
select_location/3
error.pl  -- Error generating support
exceptions.pl  -- Exception classification
explain.pl  -- Describe Prolog Terms
explain/1	Give an explanation on Term.
explain/2	True when Explanation is an explanation of Term.
fastrw.pl  -- Fast reading and writing of terms
fast_read/1	The next term is read from current standard input and is unified with Term.
fast_write/1	Output Term in a way that fast_read/1 and fast_read/2 will be able to read it back.
fast_write_to_string/3	Perform a fast-write to the difference-slist String\Tail.
files.pl
can_open_file/2	Succeeds if the user has access to `File' in mode `Mode'.
chdir/1	Change Working Directory.
gensym.pl  -- Generate unique symbols
git.pl  -- Run GIT commands
git/2	Run a GIT command.
git_branches/2	True when Branches is the list of branches in the repository.
git_default_branch/2	True when BranchName is the current branch of a repository.
git_default_branch/2	True when BranchName is the default branch of a repository.
git_describe/2	Describe the running version based on GIT tags and hashes.
git_hash/2	Return the hash of the indicated object.
git_ls_remote/3	Execute git ls-remote against the remote repository to fetch references from the remote.
git_ls_tree/2	True when Entries is a list of entries in the the GIT repository, Each entry is a term:.
git_open_file/4	Open the file File in the given bare GIT repository on the given branch (treeisch).
git_process_output/3	Run a git-command and process the output with OnOutput, which is called as call(OnOutput, Stream).
git_remote_branches/2	Exploit git_ls_remote/3 to fetch the branches from a remote repository without downloading it.
git_remote_url/3	URL is the remote (fetch) URL for the given Remote.
git_shortlog/3	Fetch information like the GitWeb change overview.
git_show/4	Fetch info from a GIT commit.
git_tags/2	True when Tags is a list of git tags defined on the repository.
git_tags_on_branch/3	Tags is a list of tags in Branch on the GIT repository Dir, most recent tag first.
is_git_directory/1	True if Directory is a git directory (Either checked out or bare).
is_git_hash/1	True when Atom represents a GIT hash, i.e., a 40 digit hexadecimal string.
hashtable.pl  -- Hash tables
ht_del/3	Delete Key-Value from HT.
ht_gen/3	True when Key-Value is in HT.
ht_get/3	True when Key is in HT and associated with Value.
ht_is_hashtable/1	True when HT is a hash table.
ht_keys/2	True when Keys is an ordered set of all keys in HT.
ht_new/1	Create a new hash table.
ht_pairs/2	True when Pairs and HT represent the same association.
ht_put/3	Add a Key-Value to HT.
ht_put/5	Add Key-Value to HT.
ht_put_new/3	As ht_put/3, but fails if Key is already in HT instead of updating the associated value.
ht_size/2	True when Size is the number of key-value pairs in HT.
ht_update/4	True when HT holds Key-Old before and Key-New after this call.
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
apropos/1	Print objects from the manual whose name or summary match with Query.
help/0	Show help for What.
help/1	Show help for What.
show_html_hook/1	Hook called to display the extracted HTML document.
hotfix.pl  -- Load hotfixes into executables
load_hotfixes/1	Load all hotfixes that have not yet been applied into the current state.
increval.pl  -- Incremental dynamic predicate modification
incr_directly_depends/2	True if Goal1 depends on Goal2 in the IDG.
incr_invalid_subgoals/1	List is a sorted list (set) of the incremental subgoals that are currently invalid.
incr_invalidate_call/1	This is the XSB name, but the manual says incr_invalidate_calls/1 and the comment with the code suggests this is misnamed.
incr_invalidate_calls/1	Invalidate all tables for subgoals of Goal as well as tables that are affected by these.
incr_is_invalid/1	True when Subgoal's table is marked as invalid.
incr_propagate_calls/1	Activate the monotonic answer propagation similarly to when a new fact is asserted for a monotonic dynamic predicate.
incr_table_update/0	Updated all invalid tables.
incr_trans_depends/2	True for each pair in the transitive closure of incr_directly_depends(G1, G2).
is_incremental_subgoal/1	This predicate non-deterministically unifies Subgoal with incrementally tabled subgoals that are currently table entries.
intercept.pl  -- Intercept and signal interface
iostream.pl  -- Utilities to deal with streams
lazy_lists.pl  -- Lazy list handling
lazy_engine_next/4	Lazy list iterator for engines.
lazy_findall/3	True when List is a lazy list containing the instantiations for Template for each answer of Goal.
lazy_findall/4	True when List is a lazy list containing the instantiations for Template for each answer of Goal.
lazy_get_codes/4	Lazy list iterator to get character codes from a stream.
lazy_list/2	Create a lazy list from a callback.
lazy_list/3	Create a lazy list where the next element is defined by.
lazy_list_iterator/4	Directive to create a lazy list iterator from a predicate that gets a single next value.
lazy_list_length/2	True if Len is the length of the materialized lazy list.
lazy_list_materialize/1	Materialize the lazy list.
lazy_message_queue/4	Lazy list iterator for message queues.
lazy_read_lines/4	Lazy list iterator to read lines from Stream.
lazy_read_terms/4	Turn a stream into a lazy list of Prolog terms.
listing.pl  -- List programs and pretty print clauses
listing/0	Lists all predicates defined in the calling module.
listing/1	List matching clauses.
listing/2	List matching clauses.
portray_clause/1	Portray `Clause' on the current output stream.
portray_clause/2	Portray `Clause' on the current output stream.
portray_clause/3	Portray `Clause' on the current output stream.
lists.pl  -- List Manipulation
append/2	Concatenate a list of lists.
append/3	List1AndList2 is the concatenation of List1 and List2.
clumped/2	Pairs is a list of Item-Count pairs that represents the run length encoding of Items.
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.
max_member/3	True when Max is the largest member according to Pred, which must be a 2-argument callable that behaves like (@=<)/2.
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.
min_member/3	True when Min is the smallest member according to Pred, which must be a 2-argument callable that behaves like (@=<)/2.
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 position.
selectchk/3	Semi-deterministic removal of first element in List that unifies with Elem.
selectchk/4	Semi-deterministic version of select/4.
subseq/3	Is true when SubList contains a subset of the elements of List in the same order and Complement contains all elements of List not in SubList, also in the order they appear in List.
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.
macros.pl  -- Macro expansion
expand_macros/5	Perform macro expansion on TermIn with layout PosIn to produce TermOut with layout PosOut.
include_macros/3	Include macros from another module.
macro_position/1	True when Position is the position of the macro.
main.pl  -- Provide entry point for scripts
argv_options/3	Parse command line arguments.
argv_options/4	As argv_options/3 in guided mode, Currently this version allows parsing argument options throwing an exception rather than calling halt/1 by passing an empty list to ParseOptions.
argv_usage/1	Use print_message/2 to print a usage message at Level.
cli_debug_opt_help/2	Implements opt_type/3, opt_help/2 and opt_meta/2 for debug arguments.
cli_debug_opt_meta/2	Implements opt_type/3, opt_help/2 and opt_meta/2 for debug arguments.
cli_debug_opt_type/3	Implements opt_type/3, opt_help/2 and opt_meta/2 for debug arguments.
cli_enable_development_system/0	Re-enable the development environment.
cli_parse_debug_options/2	Parse certain commandline options for debugging and development purposes.
main/0	Call main/1 using the passed command-line arguments.
make.pl  -- Reload modified source files
modules.pl  -- Module utility predicates
current_temporary_module/1	True when we are executing in the given temporary module context.
in_temporary_module/3	Run Goal on temporary loaded sources and discard the module and loaded predicates after completion.
nb_rbtrees.pl  -- Non-backtrackable operations on red black trees
nb_set.pl  -- Non-backtrackable sets
add_nb_set/2	Insert Key into the set.
add_nb_set/3	Insert Key into the set.
empty_nb_set/1	Create an empty non-backtrackable set.
gen_nb_set/2	Enumerate the members of a set in the standard order of terms.
nb_set_to_list/2	Get the elements of a an nb_set.
size_nb_set/2	Unify Size with the number of elements in the set.
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 that unify with SubTerm.
occurrences_of_var/3	Count the number of SubTerms in Term that are equal to SubTerm.
sub_term/2	Generates (on backtracking) all subterms of Term.
sub_term_shared_variables/3	If Sub is a sub term of Term, Vars is bound to the list of variables in Sub that also appear outside Sub in Term.
sub_var/2	Generates (on backtracking) all subterms (==) of Term.
operators.pl  -- Manage operators
pop_operators/0	Revert all changes to the operator table realised since the last push_operators/1.
pop_operators/1	Reset operators as pushed by push_operators/2.
push_op/3	As op/3, but this call must appear between push_operators/1 and pop_operators/0.
push_operators/1	Installs the operators from New, where New is a list of op(Prec, Type, :Name).
push_operators/2	Installs the operators from New, where New is a list of op(Prec, Type, :Name).
option.pl  -- Option list processing
optparse.pl  -- command line parsing
opt_arguments/3	Extract commandline options according to a specification.
opt_help/2	True when Help is a help string synthesized from OptsSpec.
opt_parse/4	Equivalent to opt_parse(OptsSpec, ApplArgs, Opts, PositionalArgs, []).
opt_parse/5	Parse the arguments Args (as list of atoms) according to OptsSpec.
parse_type/3	Hook to parse option text Codes to an object of type Type.
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
oset_addel/3	Ordered set element addition.
oset_delel/3	Ordered set element deletion.
oset_diff/3	Ordered set difference.
oset_dint/2	Distributed intersection.
oset_dunion/2	Distributed union.
oset_int/3	ordered set intersection.
oset_is/1	check that OSet in correct format (standard order).
oset_power/2	True when PSet is the powerset of Set.
oset_union/3	Union is the union of OSet1 and OSet2.
pairs.pl  -- Operations on key-value lists
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_assert/1	Assert Term into the database and record it for persistency.
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_retract/1	Retract terms from the database one-by-one.
db_retractall/1	Retract all matching facts and do the same in the 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
portray_text.pl  -- Portray text
portray_text/1	Switch portraying on or off.
set_portray_text/2	Set options for portraying.
set_portray_text/3	Set options for portraying.
pprint.pl  -- Pretty Print Prolog terms
print_term/2	Pretty print a Prolog term.
predicate_options.pl  -- Access and analyse predicate options
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_config/2	Get information on the configuration of the current Prolog system.
prolog_dump_runtime_variables/0	Dump the current configuration in shell format.
prolog_coverage.pl  -- Coverage analysis tool
cov_load_data/2	Reload coverage data from File.
cov_property/1	True when coverage analysis satisfies Property.
cov_reset/0	Discard all collected coverage data.
cov_save_data/2	Save the coverage information to File.
coverage/1	As call(Goal), collecting coverage information while Goal is running.
coverage/2	Collect and optionally report coverage by Goal.
report_hook/2	This hook is called after the data collection.
show_coverage/1	Show collected coverage data.
prolog_debug.pl  -- User level debugging tools
prolog_deps.pl  -- Compute file dependencies
file_auto_import/2	Update the autoload/2 directives for File.
file_autoload_directives/3	Compute the dependencies as autoload/2 directives.
prolog_evaluable.pl  -- Inspect properties of evaluable functions
evaluable_property/2	True when Property is a property of the evaluable function Function.
prolog_format.pl  -- Analyse format specifications
format_spec/2	Parse a format string.
format_spec/3	DCG for parsing format strings.
format_types/2	True when Format requires an argument list with terms of the type specified by Types.
prolog_history.pl  -- Per-directory persistent commandline history
prolog_history/1	Execute Action on the history.
prolog_jiti.pl  -- Just In Time Indexing (JITI) utilities
jiti_list/0	List the JITI (Just In Time Indexes) of selected predicates.
jiti_list/1	List the JITI (Just In Time Indexes) of selected predicates.
prolog_locale.pl  -- Tweak the locale for Prolog development
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
pack_info/1	Print more detailed information about Pack.
pack_install/1	Install one or more packs from SpecOrList.
pack_install/2	Install one or more packs from SpecOrList.
pack_install_local/3	Install a number of packages in a local directory.
pack_list/1	Query package server and installed packages and display results.
pack_list/2	Query package server and installed packages and display results.
pack_list_installed/0	List currently installed packages and report possible dependency issues.
pack_property/2	True when Property is a property of an installed Pack.
pack_publish/2	Publish a package.
pack_rebuild/0	Rebuild possible foreign components of Pack.
pack_rebuild/1	Rebuild possible foreign components of Pack.
pack_remove/1	Remove the indicated package.
pack_remove/2	Remove the indicated package.
pack_search/1	Query package server and installed packages and display results.
pack_upgrade/1	Upgrade Pack.
pack_url_file/2	True if File is a unique id for the referenced pack and version.
prolog_profile.pl  -- Execution profiler
profile/1	Run once(Goal) under the execution profiler.
profile/2	Run once(Goal) under the execution profiler.
profile_data/1	Gather all relevant data from profiler.
profile_procedure_data/2	Collect data for Pred.
show_profile/1	Display last collected profiling data.
prolog_source.pl  -- Examine Prolog source-files
prolog_stack.pl  -- Examine the Prolog stack
backtrace/1	Get and print a stacktrace to the user_error stream.
get_prolog_backtrace/2	Obtain a backtrace from the current location.
get_prolog_backtrace/3	Obtain a backtrace from the current location.
print_last_choicepoint/0	Print details on the last open choice point.
print_last_choicepoint/2
print_prolog_backtrace/2	Print a stacktrace in human readable form to Stream.
print_prolog_backtrace/3	Print a stacktrace in human readable form to Stream.
prolog_stack_frame_property/2	True when Property is a property of Frame.
stack_guard/1	Dynamic multifile hook that is normally not defined.
stack_guard/1	Dynamic multifile predicate.
prolog_trace.pl  -- Print access to predicates
prolog_versions.pl  -- Demand specific (Prolog) versions
prolog_wrap.pl  -- Wrapping predicates
prolog_xref.pl  -- Prolog cross-referencer data collection
called_by/2	If this succeeds, the cross-referencer assumes Goal may call any of the goals in ListOfCalled.
called_by/4	True when Called is a list of callable terms called from Goal, handled by the predicate Module:Goal and executed in the context of the module Context.
hook/1	True if Goal is a hook that is called spontaneously (e.g., from foreign code).
meta_goal/2	Define meta-predicates.
xref_called/3	True when By is called from Called in Source.
xref_called/4	True when By is called from Called in Source.
xref_called/5	True when By is called from Called in Source.
xref_clean/1	Reset the database for the given source.
xref_comment/3	Is true when Source has a section comment with Title and Comment.
xref_comment/4	Is true when Head in Source has the given PlDoc comment.
xref_current_source/1	Check what sources have been analysed.
xref_defined/3	Test if Goal is accessible in Source.
xref_definition_line/2	If the 3th argument of xref_defined contains line info, return this in Line.
xref_done/2	Cross-reference executed at Time.
xref_exported/2	True when Source exports Head.
xref_hook/1	Definition of known hooks.
xref_meta/2	True when Called is a list of terms called from Head.
xref_meta/3	True when Head calls Called in Source.
xref_mode/3	Is true when Source provides a predicate with Mode and determinism.
xref_module/2	True if Module is defined in Source.
xref_op/2	Give the operators active inside the module.
xref_option/2	True when Source was processed using Option.
xref_prolog_flag/4	True when Flag is set to Value at Line in Source.
xref_public_list/3	Find meta-information about File.
xref_public_list/4	Find meta-information about File.
xref_public_list/6	Find meta-information about File.
xref_public_list/7	Find meta-information about File.
xref_source/1	Generate the cross-reference data for Source if not already done and the source is not modified.
xref_source/2	Generate the cross-reference data for Source if not already done and the source is not modified.
xref_source_file/3	Find named source file from Spec, relative to Src.
xref_source_file/4	Find named source file from Spec, relative to Src.
xref_uses_file/3	True when Source tries to load a file using Spec.
pure_input.pl  -- Pure Input from files and streams
qpforeign.pl  -- Quintus compatible foreign loader
qsave.pl  -- Save current program as a state or executable
arch_shlib/3	This is a user defined hook called by qsave_program/2.
qsave_program/1	Make a saved state in file `File'.
qsave_program/2	Make a saved state in file `File'.
qsave_toplevel/0	Called to handle `-c file` compilaton.
quasi_quotations.pl  -- Define Quasi Quotation syntax
phrase_from_quasi_quotation/2	Process the quasi quotation using the DCG Grammar.
quasi_quotation_syntax/1	Declare the predicate SyntaxName/4 to implement the the quasi quote syntax SyntaxName.
quasi_quotation_syntax_error/1	Report syntax_error(Error) using the current location in the quasi quoted input parser.
with_quasi_quotation_input/3	Process the quasi-quoted Content using Stream parsed by Goal.
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_numlist/4	Unify List with an ascending list of integers between L and U (inclusive).
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.
random_subseq/3	Selects a random subsequence Subseq of List, with Complement containing all elements of List that were not selected.
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
readln.pl  -- Read line as list of tokens
readutil.pl  -- Read utilities
read_file_to_codes/3	Read the file Spec into a list of Codes.
read_file_to_string/3	Read the file Spec into a the string String.
read_file_to_terms/3	Read the file Spec into a list of terms.
read_line_to_codes/2	Read the next line of input from Stream.
read_line_to_codes/3	Difference-list version to read an input line to a list of character codes.
read_line_to_string/2	Read the next line from Stream into String.
read_stream_to_codes/2	Read input from Stream to a list of character codes.
read_stream_to_codes/3	Read input from Stream to a list of character codes.
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.
rwlocks.pl  -- Read/write locks
with_rwlock/3	Run Goal, synchronized with LockId in ModeSpec.
with_rwlock/4	Run Goal, synchronized with LockId in ModeSpec.
sandbox.pl  -- Sandboxed Prolog code
sandbox_allowed_directive/1	Throws an exception if G is not considered a safe directive.
sandbox_allowed_expansion/1	Throws an exception if G is not considered a safe expansion goal.
sandbox_allowed_goal/1	Throw an exception if it is not safe to call G.
format_calls/3	Find ~@ calls from Format and Args.
safe_call/1	Call Goal if it complies with the sandboxing rules.
safe_directive/1	Hook to declare additional directives as safe.
safe_global_variable/1	Declare the given global variable safe to write to.
safe_goal/1	True if calling Goal provides no security risc.
safe_meta/2	Hook.
safe_primitive/1	True if Goal is safe to call (i.e., cannot access dangerous system-resources and cannot upset other parts of the Prolog process).
safe_prolog_flag/2	True if it is safe to set the flag Flag to Value.
settings.pl  -- Setting management
shell.pl  -- Elementary shell commands
shlib.pl  -- Utility library for loading foreign objects (DLLs, shared objects)
compat_arch/2	User definable hook to establish if Arch1 is compatible with Arch2 when running a shared object.
current_foreign_library/2	Query currently loaded shared libraries.
load_foreign_library/1	Load a shared object or DLL.
load_foreign_library/2	Load a shared object or DLL.
reload_foreign_libraries/0	Reload all foreign libraries loaded (after restore of a state created using qsave_program/2.
unload_foreign_library/1	Unload a shared object or DLL.
unload_foreign_library/2	Unload a shared object or DLL.
use_foreign_library/1	Load and install a foreign library as load_foreign_library/1,2 and register the installation using initialization/2 with the option now.
use_foreign_library/2	Load and install a foreign library as load_foreign_library/1,2 and register the installation using initialization/2 with the option now.
solution_sequences.pl  -- Modify solution sequences
call_nth/2	True when Goal succeeded for the Nth time.
distinct/1	True if Goal is true and no previous solution of Goal bound Witness to the same value.
distinct/2	True if Goal is true and no previous solution of Goal bound Witness to the same value.
group_by/4	Group bindings of Template that have the same value for By.
limit/2	Limit the number of solutions.
offset/2	Ignore the first Count solutions.
order_by/2	Order solutions according to Spec.
reduced/1	Similar to distinct/1, but does not guarantee unique results in return for using a limited amount of memory.
reduced/3	Similar to distinct/1, but does not guarantee unique results in return for using a limited amount of memory.
sort.pl
locale_sort/2	Sort a list of atoms using the current locale.
predsort/3	Sorts similar to sort/2, but determines the order of two terms by calling Compare(-Delta, +E1, +E2).
statistics.pl  -- Get information about resource usage
call_time/2	Call Goal as call/1, unifying Time with a dict that provides information on the resource usage.
call_time/3	Call Goal as call/1, unifying Time with a dict that provides information on the resource usage.
statistics/0	Print information about resource usage using print_message/2.
statistics/1	Stats is a dict representing the same information as statistics/0.
thread_statistics/2	Obtain statistical information about a single thread.
time/1	Execute Goal, reporting statistics to the user.
streams.pl  -- Manage Prolog streams
with_output_to/3	Run Goal and once/1 while capturing all output to all streams (current_output, user_output and user_error) in the string Output.
strings.pl  -- String utilities
dedent_lines/3	Remove shared indentation for all lines in a string.
indent_lines/3	Add Prefix to the beginning of lines in In.
indent_lines/4	Similar to indent_lines/3, but only adds Prefix to lines for which call(Filter, Line) succeeds.
interpolate_string/4	Establish a string from a template by replacing patterns.
string/4	Implements the quasi quotation syntax string.
string_lines/2	True when String represents Lines.
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.
tables.pl  -- XSB interface to tables
terms.pl  -- Term manipulation
foldsubterms/4	The predicate foldsubterms/5 calls call(Goal4, SubTerm1, SubTerm2, StateIn, StateOut) for each subterm, including variables, in Term1.
foldsubterms/5	The predicate foldsubterms/5 calls call(Goal4, SubTerm1, SubTerm2, StateIn, StateOut) for each subterm, including variables, in Term1.
mapargs/3	Term1 and Term2 have the same functor (name/arity) and for each matching pair of arguments call(Goal, A1, A2) is true.
mapsubterms/3	Recursively map sub terms of Term1 into subterms of Term2 for every pair for which call(Goal, ST1, ST2) succeeds.
mapsubterms_var/3	Recursively map sub terms of Term1 into subterms of Term2 for every pair for which call(Goal, ST1, ST2) succeeds.
same_functor/2	True when Term1 and Term2 are terms that have the same functor (Name/Arity).
same_functor/3	True when Term1 and Term2 are terms that have the same functor (Name/Arity).
same_functor/4	True when Term1 and Term2 are terms that have the same functor (Name/Arity).
subsumes/2	True if Generic is unified to Specific without changing Specific.
subsumes_chk/2	True if Generic can be made equivalent to Specific without changing Specific.
term_factorized/3	Is true when Skeleton is Term where all subterms that appear multiple times are replaced by a variable and Substitution is a list of Var=Value that provides the subterm at the location Var.
term_size/2	True if Size is the size in cells occupied by Term on the global (term) stack.
term_subsumer/3	General is the most specific term that is a generalisation of Special1 and Special2.
variant/2	Same as SWI-Prolog Term1 =@= Term2.
thread.pl  -- High level thread primitives
call_in_thread/2	Run Goal as an interrupt in the context of Thread.
concurrent/3	Run Goals in parallel using N threads.
concurrent_and/2	Concurrent version of (Generator,Test).
concurrent_and/3	Concurrent version of (Generator,Test).
concurrent_forall/2	True when Action is true for all solutions of Generate.
concurrent_forall/3	True when Action is true for all solutions of Generate.
concurrent_maplist/2	Concurrent version of maplist/2.
concurrent_maplist/3	Concurrent version of maplist/2.
concurrent_maplist/4	Concurrent version of maplist/2.
first_solution/3	Try alternative solvers concurrently, returning the first answer.
thread_pool.pl  -- Resource bounded thread management
threadutil.pl  -- Interactive thread utilities
tty.pl  -- Terminal operations
menu/3	Show a menu.
tty_clear/0	Clear the display.
tty_flash/0	Give visual signal if possible, otherwise beep.
ugraphs.pl  -- Graph manipulation library
add_edges/3	Unify NewGraph with a new graph obtained by adding the list of Edges to Graph.
add_vertices/3	Unify NewGraph with a new graph obtained by adding the list of Vertices to Graph.
complement/2	UGraphOut is a ugraph with an edge between all vertices that are not connected in UGraphIn and all edges from UGraphIn removed.
compose/3	Compose NewGraph by connecting the drains of LeftGraph to the sources of RightGraph.
connect_ugraph/3	Adds Start as an additional vertex that is connected to all vertices in UGraphIn.
del_edges/3	Unify NewGraph with a new graph obtained by removing the list of Edges from Graph.
del_vertices/3	Unify NewGraph with a new graph obtained by deleting the list of Vertices and all the edges that start from or go to a vertex in Vertices to the Graph.
edges/2	Unify Edges with all edges appearing in Graph.
neighbors/3	Neigbours is a sorted list of the neighbours of Vertex in Graph.
neighbours/3	Neigbours is a sorted list of the neighbours of Vertex in Graph.
reachable/3	True when Vertices is an ordered set of vertices reachable in UGraph, including Vertex.
top_sort/2	Sort vertices topologically.
transitive_closure/2	Generate the graph Closure as the transitive closure of Graph.
transpose_ugraph/2	Unify NewGraph with a new graph obtained from Graph by replacing all edges of the form V1-V2 by edges of the form V2-V1.
ugraph_layers/2	Sort vertices topologically.
ugraph_union/3	NewGraph is the union of Graph1 and Graph2.
vertices/2	Unify Vertices with all vertices appearing in Graph.
vertices_edges_to_ugraph/3	Create a UGraph from Vertices and Edges.
url.pl  -- Analysing and constructing URL
utf8.pl  -- UTF-8 encoding/decoding on lists of character codes.
utf8_codes/3	DCG translating between a Unicode code-list and its UTF-8 encoded byte-string.
varnumbers.pl  -- Utilities for numbered terms
max_var_number/3	True when Max is the max of Start and the highest numbered $VAR(N) term.
numbervars/1	Number variables in Term using $VAR(N).
varnumbers/2	Inverse of numbervars/1.
varnumbers/3	Inverse of numbervars/3.
varnumbers_names/3	If Term is a term with numbered and named variables using the reserved term '$VAR'(X), Copy is a copy of Term where each '$VAR'(X) is consistently replaced by a fresh variable and Bindings is a list X = Var, relating the X terms with the variable it is mapped to.
vm.pl  -- SWI-Prolog Virtual Machine utilities
clause_vm/2	True when VM is the virtual machine code of ClauseRef.
vm_list/1	Lists the definition of the predicates matching Spec to current_output.
vmi_labels/2	Translated between a raw and a labeled representation for a VMI sequence as produced by clause_vm/2.
wfs.pl  -- Well Founded Semantics interface
when.pl  -- Conditional coroutining
win_menu.pl  -- Console window menu
writef.pl  -- Old-style formatted write
swritef/2	Use writef/1 or writef/2 and write the result to a string.
swritef/3	Use writef/1 or writef/2 and write the result to a string.
writef/1	Formatted write to the current_output.
writef/2	Formatted write to the current_output.
www_browser.pl  -- Open a URL in the users browser
expand_url_path/2	Expand URL specifications similar to absolute_file_name/3.
known_browser/2	True if browser FileBaseName has a remote protocol compatible to Compatible.
www_open_url/1	Open URL in running version of the users' browser or start a new browser.
yall.pl  -- Lambda expressions
//2	Shorthand for Free/[]>>Lambda.
//3	Shorthand for Free/[]>>Lambda.
//4	Shorthand for Free/[]>>Lambda.
//5	Shorthand for Free/[]>>Lambda.
//6	Shorthand for Free/[]>>Lambda.
//7	Shorthand for Free/[]>>Lambda.
//8	Shorthand for Free/[]>>Lambda.
//9	Shorthand for Free/[]>>Lambda.
>>/2	Calls a copy of Lambda.
>>/3	Calls a copy of Lambda.
>>/4	Calls a copy of Lambda.
>>/5	Calls a copy of Lambda.
>>/6	Calls a copy of Lambda.
>>/7	Calls a copy of Lambda.
>>/8	Calls a copy of Lambda.
>>/9	Calls a copy of Lambda.
is_lambda/1	True if Term is a valid Lambda expression.
lambda_calls/2	Goal is the goal called if call/N is applied to LambdaExpression, where ExtraArgs are the additional arguments to call/N.
lambda_calls/3	Goal is the goal called if call/N is applied to LambdaExpression, where ExtraArgs are the additional arguments to call/N.
zip.pl  -- Access resource ZIP archives
with_zipper/2	Run Goal while holding ownership over Zipper.
zip_close/1	Close a zipper.
zip_close/2	Close a zipper.
zip_open/4	Create a Zipper, providing access to File.
zipper_file_info/3	Obtain information about the current zip entry.
zipper_goto/2	Seek Zipper to a specified entry.
zipper_members/2	True when Members is the list of file names in the Zipper.
zipper_open_current/3	Open the current entry as an input stream.