SWI-Prolog 9.3.29
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library

Prolog files

aggregate.plShow source
aggregate/3Aggregate bindings in Goal according to Template.Source
aggregate/4Aggregate bindings in Goal according to Template.Source
aggregate_all/3Aggregate bindings in Goal according to Template.Source
aggregate_all/4Aggregate bindings in Goal according to Template.Source
foldall/4Use Folder to fold V0 to V using all answers of Goal.Source
foreach/2True when the conjunction of instances of Goal created from solutions for Generator is true.Source
free_variables/4Find free variables in bagof/setof template.Source
safe_meta/2Declare the aggregate meta-calls safe.Source
ansi_term.pl  -- Print decorated text to ANSI consolesShow source
apply.pl  -- Apply predicates on a listShow source
apply_macros.pl  -- Goal expansion rules to avoid meta-callingShow source
apply_macros_sentinel/0Used to detect that library(apply_macros) is loaded into the current context explicitly.Source
expand_phrase/2Provide goal-expansion for PhraseGoal.Source
expand_phrase/4Provide goal-expansion for PhraseGoal.Source
arithmetic.pl  -- Extensible arithmeticShow source
assoc.pl  -- Binary associationsShow source
atom.plShow source
identifier_parts/2Parts is a list of atoms that make up Identifier.Source
join_identifier_parts/3Join parts of an identifier according to Style.Source
restyle_identifier/3Restyle an identifier by extracting the alnum substrings and joining them together according to Style.Source
backcomp.plShow source
$apropos_match/2True if Needle is a sub atom of Haystack.Source
$arch/2Source
$argv/1Source
$declare_module/3Used in triple20 particle library.Source
$home/1Source
$module/2Source
$set_prompt/1Set the prompt for the toplevel.Source
$sig_atomic/1Execute Goal without processing signals.Source
$strip_module/3This used to be an internal predicate.Source
$version/1Source
C/3Used to be generated by DCG.Source
at_initialization/1Register goal only to be run if a saved state is restored.Source
call_cleanup/3Call Cleanup with an indication of the reason unified to Catcher.Source
checklist/2Source
concat/3Source
concat_atom/2Concatenate a list of atomic values to an atom.Source
concat_atom/3Concatenate a list of atomic values to an atom, inserting Separator between each consecutive elements.Source
convert_time/2Convert a time-stamp as obtained though get_time/1 into a textual representation using the C-library function ctime().Source
convert_time/8Convert a time stamp, provided by get_time/1, time_file/2, etc.Source
current_module/2True if Module is a module loaded from File.Source
current_mutex/3Source
current_thread/2Source
displayq/1Write term ignoring operators and quote atoms.Source
displayq/2Write term ignoring operators and quote atoms.Source
eval_license/0Source
export_list/2Module exports the predicates of List.Source
feature/2Control Prolog flags.Source
flush/0Source
free_variables/2Return a list of unbound variables in Term.Source
hash/1Demands PredInd to be indexed using a hash-table.Source
hash_term/2If Term is ground, Hash is unified to an integer representing a hash for Term.Source
index/1Prepare the predicate indicated by Head for multi-argument indexing.Source
lock_predicate/2Source
merge/3Merge the ordered sets List1 and List2 into a new ordered list.Source
merge_set/3Merge the ordered sets Set1 and Set2 into a new ordered set without duplicates.Source
message_queue_size/2True if Queue holds Size terms.Source
proper_list/1Old SWI-Prolog predicate to check for a list that really ends in a [].Source
read_clause/1Source
read_clause/2Source
read_history/6Source
read_pending_input/3Source
read_variables/2Source
read_variables/3Source
set_base_module/1Set the default module from which we inherit.Source
set_feature/2Control Prolog flags.Source
setup_and_call_cleanup/3Call Cleanup once after Goal is finished.Source
setup_and_call_cleanup/4Call Cleanup once after Goal is finished, with Catcher unified to the reason.Source
sformat/2Source
sformat/3Source
string_to_atom/2Bi-directional conversion between string and atom.Source
string_to_list/2Bi-directional conversion between a string and a list of character codes.Source
sublist/3Succeeds if List2 unifies with a list holding those terms for which call(Goal, Elem) succeeds.Source
substring/4Predecessor of sub_string using 1-based Offset.Source
sumlist/2True when Sum is the list of all numbers in List.Source
thread_at_exit/1Register Goal to be called when the calling thread exits.Source
trie_insert_new/3Source
unlock_predicate/2Source
write_ln/1Source
base32.plShow source
base32/2Translates between plaintext and base32 encoded atom or string.Source
base32/3Encode/decode list of character codes using base32.Source
base64.plShow source
base64/2Equivalent to base64_encoded/3 using the options as(atom) and encoding(iso_latin_1).Source
base64/3Encode/decode list of character codes using base64.Source
base64_encoded/3General the base64 encoding and decoding.Source
base64_encoded/4Source
base64url/2Translates between plaintext and base64url encoded atom or string.Source
base64url/3Encode/decode list of character codes using Base64URL.Source
broadcast.pl  -- Event serviceShow source
charsio.pl  -- I/O on Lists of Character CodesShow source
check.pl  -- Consistency checkingShow source
codesio.pl  -- I/O on Lists of Character CodesShow source
coinduction.pl  -- Co-Logic ProgrammingShow source
csv.pl  -- Process CSV (Comma-Separated Values) dataShow source
ctypes.pl  -- Character code classificationShow source
date.pl  -- Process dates and timesShow source
debug.pl  -- Print debug messages and test assertionsShow source
dialect.pl  -- Support multiple Prolog dialectsShow source
dicts.pl  -- Dict utilitiesShow source
dif.pl  -- The dif/2 constraintShow source
edinburgh.pl  -- Some traditional Edinburgh predicatesShow source
edit.pl  -- Editor interfaceShow source
error.plShow source
current_encoding/1True if Name is the name of a supported encoding.Source
current_type/3True when Type is a currently defined type and Var satisfies Type of the body term Body succeeds.Source
domain_error/2The argument is of the proper type, but has a value that is outside the supported values.Source
existence_error/2Culprit is of the correct type and correct domain, but there is no existing (external) resource of type ObjectType that is represented by it.Source
existence_error/3Culprit is of the correct type and correct domain, but there is no existing (external) resource of type ObjectType that is represented by it in the provided set.Source
has_type/2True if Term satisfies Type.Source
instantiation_error/1An argument is under-instantiated.Source
is_of_type/2True if Term satisfies Type.Source
must_be/2True if Term satisfies the type constraints for Type.Source
permission_error/3It is not allowed to perform Operation on (whatever is represented by) Culprit that is of the given PermissionType (in fact, the ISO Standard is confusing and vague about these terms' meaning).Source
representation_error/1A representation error indicates a limitation of the implementation.Source
resource_error/1A goal cannot be completed due to lack of resources.Source
syntax_error/1A text has invalid syntax.Source
type_error/2Tell the user that Culprit is not of the expected ValidType.Source
uninstantiation_error/1An argument is over-instantiated.Source
explain.plShow source
explain/1Give an explanation on Term.Source
explain/2True when Explanation is an explanation of Term.Source
fastrw.pl  -- Fast reading and writing of termsShow source
files.plShow source
can_open_file/2Succeeds if the user has access to `File' in mode `Mode'.Source
chdir/1Change Working Directory.Source
gensym.pl  -- Generate unique symbolsShow source
git.pl  -- Run GIT commandsShow source
heaps.plShow source
add_to_heap/4Adds Key with priority Priority to Heap0, constructing a new heap in Heap.Source
delete_from_heap/4Deletes Key from Heap0, leaving its priority in Priority and the resulting data structure in Heap.Source
empty_heap/1True if Heap is an empty heap.Source
get_from_heap/4Retrieves the minimum-priority pair Priority-Key from Heap0.Source
heap_size/2Determines the number of elements in Heap.Source
heap_to_list/2Constructs a list List of Priority-Element terms, ordered by (ascending) priority.Source
is_heap/1Returns true if X is a heap.Source
list_to_heap/2If List is a list of Priority-Element terms, constructs a heap out of List.Source
merge_heaps/3Merge the two heaps Heap0 and Heap1 in Heap.Source
min_of_heap/3Unifies Key with the minimum-priority element of Heap and Priority with its priority value.Source
min_of_heap/5Gets the two minimum-priority elements from Heap.Source
singleton_heap/3True if Heap is a heap with the single element Priority-Key.Source
increval.pl  -- Incremental dynamic predicate modificationShow source
intercept.pl  -- Intercept and signal interfaceShow source
iostream.pl  -- Utilities to deal with streamsShow source
lazy_lists.pl  -- Lazy list handlingShow source
listing.pl  -- List programs and pretty print clausesShow source
lists.pl  -- List ManipulationShow source
macros.plShow source
expand_macros/5Perform macro expansion on TermIn with layout PosIn to produce TermOut with layout PosOut.Source
include_macros/3Include macros from another module.Source
macro_position/1True when Position is the position of the macro.Source
main.pl  -- Provide entry point for scriptsShow source
make.pl  -- Reload modified source filesShow source
modules.pl  -- Module utility predicatesShow source
nb_set.pl  -- Non-backtrackable setsShow source
occurs.pl  -- Finding and counting sub-termsShow source
operators.pl  -- Manage operatorsShow source
option.pl  -- Option list processingShow source
optparse.plShow source
opt_arguments/3Extract commandline options according to a specification.Source
opt_help/2True when Help is a help string synthesized from OptsSpec.Source
opt_parse/4Equivalent to opt_parse(OptsSpec, ApplArgs, Opts, PositionalArgs, []).Source
opt_parse/5Parse the arguments Args (as list of atoms) according to OptsSpec.Source
parse_type/3Hook to parse option text Codes to an object of type Type.Source
ordsets.pl  -- Ordered set manipulationShow source
oset.plShow source
oset_addel/3Ordered set element addition.Source
oset_delel/3Ordered set element deletion.Source
oset_diff/3Ordered set difference.Source
oset_dint/2Distributed intersection.Source
oset_dunion/2Distributed union.Source
oset_int/3ordered set intersection.Source
oset_is/1check that OSet in correct format (standard order).Source
oset_power/2True when PSet is the powerset of Set.Source
oset_union/3Union is the union of OSet1 and OSet2.Source
pairs.pl  -- Operations on key-value listsShow source
persistency.pl  -- Provide persistent dynamic predicatesShow source
pio.pl  -- Pure I/OShow source
portray_text.pl  -- Portray textShow source
pprint.pl  -- Pretty Print Prolog termsShow source
predicate_options.plShow source
assert_predicate_options/4As predicate_options(:PI, +Arg, +Options).Source
check_predicate_option/3Verify predicate options at runtime.Source
check_predicate_options/0Analyse loaded program for erroneous options.Source
check_predicate_options/1Verify calls to predicates that have options in all clauses of the predicate indicated by PredicateIndicator.Source
current_option_arg/2True when Arg of PI processes predicate options.Source
current_predicate_option/3True when Arg of PI processes Option.Source
current_predicate_options/3True when Options is the current active option declaration for PI on Arg.Source
derive_predicate_options/0Derive new predicate option declarations.Source
derived_predicate_options/1Derive predicate option declarations for a module.Source
derived_predicate_options/3Derive option arguments using static analysis.Source
predicate_options/3Declare that the predicate PI processes options on Arg.Source
retractall_predicate_options/0Remove all dynamically (derived) predicate options.Source
prolog_breakpoints.pl  -- Manage Prolog break-pointsShow source
prolog_clause.plShow source
prolog_code.pl  -- Utilities for reasoning about codeShow source
prolog_codewalk.plShow source
prolog_program_clause/2True when ClauseRef is a reference for clause in the program.Source
prolog_walk_code/1Walk over all loaded (user) Prolog code.Source
subterm_pos/5True when SubTerm is a sub term of Term, compared using Cmp, TermPosition describes the term layout of Term and SubTermPos describes the term layout of SubTerm.Source
prolog_colour.plShow source
prolog_colourise_query/3Colourise a query, to be executed in the context of SourceId.Source
prolog_colourise_stream/3Determine colour fragments for the data on Stream.Source
prolog_colourise_stream/4Determine colour fragments for the data on Stream.Source
prolog_colourise_term/4Colourise the next term on Stream.Source
syntax_colour/2True when a range classified Class must be coloured using Attributes.Source
vararg_goal_classification/3Multifile hookable classification for vararg predicates.Source
prolog_coverage.pl  -- Coverage analysis toolShow source
prolog_debug.pl  -- User level debugging toolsShow source
prolog_format.pl  -- Analyse format specificationsShow source
prolog_history.plShow source
prolog_history/1Execute Action on the history.Source
prolog_jiti.pl  -- Just In Time Indexing (JITI) utilitiesShow source
prolog_metainference.plShow source
infer_meta_predicate/2True when MetaSpec is a meta-predicate specifier for the predicate Head.Source
inferred_meta_predicate/2True when MetaSpec is an inferred meta-predicate specification for Head.Source
prolog_pack.pl  -- A package manager for PrologShow source
prolog_source.pl  -- Examine Prolog source-filesShow source
prolog_stack.pl  -- Examine the Prolog stackShow source
prolog_trace.pl  -- Print access to predicatesShow source
prolog_versions.pl  -- Demand specific (Prolog) versionsShow source
prolog_wrap.plShow source
current_predicate_wrapper/4True if Head is wrapped with Body.Source
unwrap_predicate/2Remove the outermost wrapper whose name unifies with Name.
wrap_predicate/4Wrap the predicate referenced by Head using Body.Source
prolog_xref.pl  -- Prolog cross-referencer data collectionShow source
pure_input.pl  -- Pure Input from files and streamsShow source
qsave.plShow source
quasi_quotations.pl  -- Define Quasi Quotation syntaxShow source
quintus.pl  -- Quintus compatibilityShow source
random.plShow source
getrand/1Query/set the state of the random generator.Source
maybe/0Succeed/fail with equal probability (variant of maybe/1).Source
maybe/1Succeed with probability P, fail with probability 1-P.Source
maybe/2Succeed with probability K/N (variant of maybe/1).Source
random/1Binds R to a new random float in the open interval (0.0,1.0).Source
random/3Generate a random integer or float in a range.Source
random_between/3Binds R to a random integer in [L,U] (i.e., including both L and U).Source
random_member/2X is a random member of List.Source
random_numlist/4Unify List with an ascending list of integers between L and U (inclusive).Source
random_perm2/4Does X=A,Y=B or X=B,Y=A with equal probability.Source
random_permutation/2Permutation is a random permutation of List.Source
random_select/3Randomly select or insert an element.Source
random_subseq/3Selects a random subsequence Subseq of List, with Complement containing all elements of List that were not selected.Source
randseq/3S is a list of K unique random integers in the range 1..N.Source
randset/3S is a sorted list of K unique random integers in the range 1..N.Source
setrand/1Query/set the state of the random generator.Source
rbtrees.pl  -- Red black treesShow source
readutil.pl  -- Read utilitiesShow source
record.pl  -- Access compound arguments by nameShow source
sandbox.pl  -- Sandboxed Prolog codeShow source
settings.pl  -- Setting managementShow source
shell.pl  -- Elementary shell commandsShow source
shlib.pl  -- Utility library for loading foreign objects (DLLs, shared objects)Show source
solution_sequences.pl  -- Modify solution sequencesShow source
sort.plShow source
statistics.pl  -- Get information about resource usageShow source
streams.pl  -- Manage Prolog streamsShow source
strings.pl  -- String utilitiesShow source
system.pl  -- System utilitiesShow source
tables.pl  -- XSB interface to tablesShow source
terms.pl  -- Term manipulationShow source
thread.pl  -- High level thread primitivesShow source
thread_pool.pl  -- Resource bounded thread managementShow source
threadutil.pl  -- Interactive thread utilitiesShow source
tty.pl  -- Terminal operationsShow source
ugraphs.pl  -- Graph manipulation libraryShow source
url.pl  -- Analysing and constructing URLShow source
utf8.pl  -- UTF-8 encoding/decoding on lists of character codes.Show source
varnumbers.pl  -- Utilities for numbered termsShow source
wfs.plShow source
answer_residual/2True when Goal resolves to a tabled predicate and Residual is the residual goal associated with an answer for Goal.Source
call_delays/2True when Goal is true with Delays.Source
call_residual_program/2Call Goal and return the full residual program as a list of Clauses.Source
delays_residual_program/2Given a delay as returned by call_delays/2, produce a set of clauses the represents the complete residual program responsible for these delays, The program contains at least one loop through tnot/1 and is either inconsistent or has multiple models according to the stable model semantics.Source
when.pl  -- Conditional coroutiningShow source
writef.pl  -- Old-style formatted writeShow source
www_browser.pl  -- Open a URL in the users browserShow source
yall.pl  -- Lambda expressionsShow source
zip.pl  -- Access resource ZIP archivesShow source