library

Prolog files

aggregate.pl  -- Aggregation operators on backtrackable predicatesShow 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
foreach/2True if conjunction of results 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
expand_phrase/2Provide goal-expansion for PhraseGoal.Source
expand_phrase/4Provide goal-expansion for PhraseGoal.Source
archive.pl  -- Access several archive formatsShow source
arithmetic.pl  -- Extensible arithmeticShow source
assoc.pl  -- Binary associationsShow source
assoc_to_keys/2True if Keys is the list of keys in Assoc.Source
assoc_to_list/2Translate Assoc to a list Pairs of Key-Value pairs.Source
assoc_to_values/2True if Values is the list of values in Assoc.Source
del_assoc/4True if Key-Value is in Assoc0.Source
del_max_assoc/4True if Key-Value is in Assoc0 and Key is the greatest key.Source
del_min_assoc/4True if Key-Value is in Assoc0 and Key is the smallest key.Source
empty_assoc/1Is true if Assoc is the empty association list.Source
gen_assoc/3True if Key-Value is an association in Assoc.Source
get_assoc/3True if Key-Value is an association in Assoc.Source
get_assoc/5True if Key-Val0 is in Assoc0 and Key-Val is in Assoc.Source
is_assoc/1True if Assoc is an association list.Source
list_to_assoc/2Create an association from a list Pairs of Key-Value pairs.Source
map_assoc/2True if Pred(Value) is true for all values in Assoc.Source
map_assoc/3Map corresponding values.Source
max_assoc/3True if Key-Value is in Assoc and Key is the largest key.Source
min_assoc/3True if Key-Value is in assoc and Key is the smallest key.Source
ord_list_to_assoc/2Assoc is created from an ordered list Pairs of Key-Value pairs.Source
put_assoc/4Assoc is Assoc0, except that Key is associated with Value.Source
backcomp.pl  -- Backward compatibilityShow source
base32.pl  -- Base32 encoding and decodingShow source
base32/2Translates between plaintext and base32 encoded atom or string.Source
base32/3Encode/decode list of character codes using base32.Source
base64.pl  -- Base64 encoding and decodingShow source
base64/2Translates between plaintext and base64 encoded atom or string.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
c14n2.pl  -- C14n2 canonical XML documentsShow source
xml_write_canonical/3Write an XML DOM using the canonical conventions as defined by C14n2.Source
cgi.pl  -- Read CGI parametersShow source
charsio.pl  -- I/O on Lists of Character CodesShow source
atom_to_chars/2Convert Atom into a list of character codes.Source
atom_to_chars/3Convert Atom into a difference list of character codes.Source
format_to_chars/3Use format/2 to write to a list of character codes.Source
format_to_chars/4Use format/2 to write to a difference list of character codes.Source
number_to_chars/2Convert Atom into a list of character codes.Source
number_to_chars/3Convert Number into a difference list of character codes.Source
open_chars_stream/2Open Codes as an input stream.Source
read_from_chars/2Read Codes into Term.Source
read_term_from_chars/3Read Codes into Term.Source
with_output_to_chars/2Run Goal as with once/1.Source
with_output_to_chars/3Run Goal as with once/1.Source
with_output_to_chars/4Same as with_output_to_chars/3 using an explicit stream.Source
write_to_chars/2Write a term to a code list.Source
write_to_chars/3Write a term to a code list.Source
check.pl  -- Consistency checkingShow source
check/0Run all consistency checks defined by checker/2.Source
checker/2Register code validation routines.Source
list_autoload/0Report predicates that may be auto-loaded.Source
list_redefined/0Lists 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.Source
list_strings/0List strings that appear in clauses.Source
list_strings/1List strings that appear in clauses.Source
list_trivial_fails/0List goals that trivially fail because there is no matching clause.Source
list_trivial_fails/1List goals that trivially fail because there is no matching clause.Source
list_undefined/0Report undefined predicates.Source
list_undefined/1Report undefined predicates.Source
list_void_declarations/0List predicates that have declared attributes, but no clauses.Source
string_predicate/1Multifile hook to disable list_strings/0 on the given predicate.Source
trivial_fail_goal/1Multifile hook that tells list_trivial_fails/0 to accept Goal as valid.Source
valid_string_goal/1Multifile hook that qualifies Goal as valid for list_strings/0.Source
chr.plShow source
codesio.pl  -- I/O on Lists of Character CodesShow source
format_to_codes/3Use format/2 to write to a list of character codes.Source
format_to_codes/4Use format/2 to write to a difference list of character codes.Source
open_codes_stream/2Open Codes as an input stream.Source
read_from_codes/2Read Codes into Term.Source
read_term_from_codes/3Read Codes into Term.Source
with_output_to_codes/2Run Goal with as once/1.Source
with_output_to_codes/3Run Goal with as once/1.Source
with_output_to_codes/4As with_output_to_codes/3, but Stream is unified with the temporary stream.Source
write_term_to_codes/3True when Codes is a string that matches the output of write_term/3 using Options.Source
write_term_to_codes/4True when Codes\Tail is a difference list containing the character codes that matches the output of write_term/3 using Options.Source
write_to_codes/2Codes is a list of character codes produced by write/1 on Term.Source
write_to_codes/3Codes is a difference-list of character codes produced by write/1 on Term.Source
coinduction.pl  -- Co-Logic ProgrammingShow source
coinductive/1The declaration :- coinductive name/arity, ... defines predicates as coinductive.Source
console_input.plShow source
crypt.plShow source
crypto.pl  -- Cryptography and authentication libraryShow source
csv.pl  -- Process CSV (Comma-Separated Values) dataShow source
ctypes.pl  -- Character code classificationShow source
is_digit/3Succeeds if `C' is a digit using `Base' as base and `Weight' represents its value.Source
is_paren/2True if Open is the open-parenthesis of Close.Source
to_lower/2Downcase a character code.Source
to_upper/2Upcase a character code.Source
upper_lower/2True when U is the character code of an uppercase character and L is the character code of the corresponding lowercase character.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
dict_fill/4Implementation for the dicts_to_same_keys/3 OnEmpty closure that fills new cells with a copy of ValueIn.Source
dict_keys/2True when Keys is an ordered set of the keys appearing in Dict.Source
dicts_join/3Join dicts in Dicts that have the same value for Key, provided they do not have conflicting values on other keys.Source
dicts_join/4Join two lists of dicts (Dicts1 and Dicts2) on Key.Source
dicts_same_keys/2True if List is a list of dicts that all have the same keys and Keys is an ordered set of these keys.Source
dicts_same_tag/2True when List is a list of dicts that all have the tag Tag.Source
dicts_slice/3DictsOut is a list of Dicts only containing values for Keys.Source
dicts_to_compounds/4True 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.Source
dicts_to_same_keys/3DictsOut is a copy of DictsIn, where each dict contains all keys appearing in all dicts of DictsIn.Source
dif.pl  -- The dif/2 constraintShow source
doc_files.pl  -- Create stand-alone documentation filesShow source
doc_save/2Save documentation for FileOrDir to file(s).Source
doc_http.pl  -- Documentation serverShow source
double_metaphone.pl  -- Phonetic string matchingShow source
edinburgh.pl  -- Some traditional Edinburgh predicatesShow source
edit.pl  -- Editor interfaceShow source
editline.pl  -- BSD libedit based command line editingShow source
error.pl  -- Error generating supportShow source
explain.pl  -- Describe Prolog TermsShow source
explain/1Write all information known about Term to the current output.Source
explain/2Explanation describes information about Term.Source
files.plShow source
can_open_file/2Succeeds if the user has access to `File' in mode `Mode'.Source
chdir/1Change Working Directory.Source
filesex.pl  -- Extended operations on filesShow source
gensym.pl  -- Generate unique symbolsShow source
git.pl  -- Run GIT commandsShow source
hash_stream.pl  -- Maintain a hash on a streamShow source
open_hash_stream/3Open a filter stream on OrgStream that maintains a hash.Source
stream_hash/2Unify Digest with a hash for the bytes send to or read from HashStream.Source
heaps.pl  -- heaps/priority queuesShow source
help.plShow source
apropos/1Give a list of subjects that might be appropriate.Source
help/1Display online help on specified subject.Source
helpidx.plShow source
iostream.pl  -- Utilities to deal with streamsShow source
close_any/1Execute the Close closure returned by open_any/5.Source
open_any/5Establish a stream from Specification that should be closed using Close, which can either be called or passed to close_any/1.Source
open_hook/6Open Spec in Mode, producing Stream.Source
lazy_lists.pl  -- Lazy list handlingShow source
lazy_engine_next/4Lazy list iterator for engines.Source
lazy_findall/3True when List is a lazy list containing the instantiations for Template for each answer of Goal.Source
lazy_findall/4True when List is a lazy list containing the instantiations for Template for each answer of Goal.Source
lazy_get_codes/4Lazy list iterator to get character codes from a stream.Source
lazy_list/2Create a lazy list from a callback.Source
lazy_list/3Create a lazy list where the next element is defined by.Source
lazy_list_iterator/4Directive to create a lazy list iterator from a predicate that gets a single next value.Source
lazy_list_length/2True if Len is the length of the materialized lazy list.Source
lazy_list_materialize/1Materialize the lazy list.Source
lazy_message_queue/4Lazy list iterator for message queues.Source
lazy_read_lines/4Lazy list iterator to read lines from Stream.Source
lazy_read_terms/4Turn a stream into a lazy list of Prolog terms.Source
listing.pl  -- List programs and pretty print clausesShow source
lists.pl  -- List ManipulationShow source
append/2Concatenate a list of lists.Source
append/3List1AndList2 is the concatenation of List1 and List2.Source
delete/3Delete matching elements from a list.Source
flatten/2Is true if FlatList is a non-nested version of NestedList.Source
intersection/3True if Set3 unifies with the intersection of Set1 and Set2.Source
is_set/1True if Set is a proper list without duplicates.Source
last/2Succeeds when Last is the last element of List.Source
list_to_set/2True when Set has the same elements as List in the same order.Source
max_list/2True if Max is the largest number in List.Source
max_member/2True when Max is the largest member in the standard order of terms.Source
member/2True if Elem is a member of List.Source
min_list/2True if Min is the smallest number in List.Source
min_member/2True when Min is the smallest member in the standard order of terms.Source
nextto/3True if Y directly follows X in List.Source
nth0/3True when Elem is the Index'th element of List.Source
nth0/4Select/insert element at index.Source
nth1/3Is true when Elem is the Index'th element of List.Source
nth1/4As nth0/4, but counting starts at 1.Source
numlist/3List is a list [Low, Low+1, ... High].Source
permutation/2True when Xs is a permutation of Ys.Source
prefix/2True iff Part is a leading substring of Whole.Source
proper_length/2True when Length is the number of elements in the proper list List.Source
reverse/2Is true when the elements of List2 are in reverse order compared to List1.Source
same_length/2Is true when List1 and List2 are lists with the same number of elements.Source
select/3Is true when List1, with Elem removed, results in List2.Source
select/4Select from two lists at the same positon.Source
selectchk/3Semi-deterministic removal of first element in List that unifies with Elem.Source
selectchk/4Semi-deterministic version of select/4.Source
subset/2True if all elements of SubSet belong to Set as well.Source
subtract/3Delete all elements in Delete from Set.Source
sum_list/2Sum is the result of adding all numbers in List.Source
union/3True if Set3 unifies with the union of Set1 and Set2.Source
main.pl  -- Provide entry point for scriptsShow source
argv_options/3Generic transformation of long commandline arguments to options.Source
main/0Call main/1 using the passed command-line arguments.Source
make.pl  -- Reload modified source filesShow source
md5.pl  -- MD5 hashesShow source
memfile.plShow source
modules.pl  -- Module utility predicatesShow source
in_temporary_module/3Run Goal on temporary loaded sources and discard the module and loaded predicates after completion.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
dict_options/2Convert between an option list and a dictionary.Source
merge_options/3Merge two option lists.Source
meta_options/3Perform meta-expansion on options that are module-sensitive.Source
option/2Get an Option from OptionList.Source
option/3Get an Option from OptionList.Source
select_option/3Get and remove Option from an option list.Source
select_option/4Get and remove Option with default value.Source
optparse.pl  -- command line parsingShow source
ordsets.pl  -- Ordered set manipulationShow source
is_ordset/1True if Term is an ordered set.Source
list_to_ord_set/2Transform a list into an ordered set.Source
ord_add_element/3Insert an element into the set.Source
ord_del_element/3Delete an element from an ordered set.Source
ord_disjoint/2True if Set1 and Set2 have no common elements.Source
ord_empty/1True when List is the empty ordered set.Source
ord_intersect/2True if both ordered sets have a non-empty intersection.Source
ord_intersect/3Intersection holds the common elements of Set1 and Set2.Source
ord_intersection/2Intersection of a powerset.Source
ord_intersection/3Intersection holds the common elements of Set1 and Set2.Source
ord_intersection/4Intersection and difference between two ordered sets.Source
ord_memberchk/2True if Element is a member of OrdSet, compared using ==.Source
ord_selectchk/3Selectchk/3, specialised for ordered sets.Source
ord_seteq/2True if Set1 and Set2 have the same elements.Source
ord_subset/2Is true if all elements of Sub are in Super.Source
ord_subtract/3Diff is the set holding all elements of InOSet that are not in NotInOSet.Source
ord_symdiff/3Is true when Difference is the symmetric difference of Set1 and Set2.Source
ord_union/2True if Union is the union of all elements in the superset SetOfSets.Source
ord_union/3Union is the union of Set1 and Set2.Source
ord_union/4True iff ord_union(Set1, Set2, Union) and ord_subtract(Set2, Set1, New).Source
oset.pl  -- Ordered set manipulationShow 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/3Source
pairs.pl  -- Operations on key-value listsShow source
pcre.pl  -- Perl compatible regular expression matching for SWI-PrologShow source
pengines.pl  -- Pengines: Web Logic Programming Made EasyShow source
authentication_hook/3This hook is called from the =/pengine/create= HTTP handler to discover whether the server is accessed by an authorized user.Source
current_pengine_application/1True when Application is a currently defined application.Source
event_to_json/3Hook that translates a Pengine event structure into a term suitable for reply_json/1, according to the language specification Lang.Source
not_sandboxed/2This hook is called to see whether the Pengine must be executed in a protected environment.Source
output/2Hook to handle pengine_output/1 from the remote pengine.Source
pengine_abort/1Aborts the running query.Source
pengine_application/1Directive that must be used to declare a pengine application module.Source
pengine_ask/3Asks pengine NameOrID a query Query.Source
pengine_create/1Creates a new pengine.Source
pengine_debug/2Create a message using format/3 from Format and Args and send this to the client.Source
pengine_destroy/1Destroys the pengine NameOrID.Source
pengine_destroy/2Destroys the pengine NameOrID.Source
pengine_event/2Examines the pengine's event queue and if necessary blocks execution until a term that unifies to Term arrives in the queue.Source
pengine_event_loop/2Starts an event loop accepting event terms sent to the current pengine or thread.Source
pengine_input/2Sends Prompt to the parent pengine and waits for input.Source
pengine_next/2Asks pengine NameOrID for the next solution to a query started by pengine_ask/3.Source
pengine_output/1Sends Term to the parent pengine or thread.Source
pengine_property/2True when Property is a property of the given Pengine.Source
pengine_pull_response/2Pulls a response (an event term) from the slave Pengine if Pengine is a remote process, else does nothing at all.Source
pengine_respond/3Sends a response in the form of the term Input to a slave pengine that has prompted its master for input.Source
pengine_rpc/2Semantically equivalent to the sequence below, except that the query is executed in (and in the Prolog context of) the pengine server referred to by URL, rather than locally.Source
pengine_rpc/3Semantically equivalent to the sequence below, except that the query is executed in (and in the Prolog context of) the pengine server referred to by URL, rather than locally.Source
pengine_self/1True if the current thread is a pengine with Id.Source
pengine_stop/2Tells pengine NameOrID to stop looking for more solutions to a query started by pengine_ask/3.Source
pengine_user/1True when the pengine was create by an HTTP request that authorized User.Source
prepare_goal/3Pre-preparation hook for running Goal0.Source
prepare_module/3Hook, called to initialize the temporary private module that provides the working context of a pengine.Source
prompt/3Hook to handle pengine_input/2 from the remote pengine.Source
write_result/3Hook that allows for different output formats.Source
create_pool/1On demand creation of a thread pool for a pengine application.Source
pengines_io.pl  -- Provide Prolog I/O for HTML clientsShow source
binding_term/5Hook to render a Prolog result term as HTML.Source
pengine_bind_io_to_html/1Redefine the built-in predicates for IO to send HTML messages using pengine_output/1.Source
pengine_display/1Redirect the corresponding Prolog output predicates.Source
pengine_flush_output/0No-op.Source
pengine_format/1As format/1,2.Source
pengine_format/2As format/1,2.Source
pengine_io_predicate/1True when Head describes the head of a (system) IO predicate that is redefined by the HTML binding.Source
pengine_listing/0List the content of the current pengine or a specified predicate in the pengine.Source
pengine_listing/1List the content of the current pengine or a specified predicate in the pengine.Source
pengine_nl/0Emit a <br/> to the pengine.Source
pengine_print/1Redirect the corresponding Prolog output predicates.Source
pengine_write/1Redirect the corresponding Prolog output predicates.Source
pengine_write_canonical/1Redirect the corresponding Prolog output predicates.Source
pengine_write_term/2Writes term as <span class=Class>Term</span>.Source
pengine_writeln/1Emit Term as <span class=writeln>Term<br></span>.Source
pengine_writeq/1Redirect the corresponding Prolog output predicates.Source
message_hook/3Send output from print_message/2 to the pengine.Source
persistency.pl  -- Provide persistent dynamic predicatesShow source
pldoc.pl  -- Process source documentationShow source
porter_stem.plShow source
pprint.pl  -- Pretty Print Prolog termsShow source
predicate_options.pl  -- Access and analyse predicate optionsShow source
process.pl  -- Create processes and redirect I/OShow source
prolog_autoload.pl  -- Autoload all dependenciesShow source
autoload/0Force all necessary autoloading to be done now.Source
autoload/1Force all necessary autoloading to be done now.Source
prolog_breakpoints.pl  -- Manage Prolog break-pointsShow source
breakpoint_property/2True when Property is a property of the breakpoint Id.Source
delete_breakpoint/1Delete breakpoint with given Id.Source
set_breakpoint/4Put a breakpoint at the indicated source-location.Source
set_breakpoint/5Put a breakpoint at the indicated source-location.Source
prolog_clause.pl  -- Get detailed source-information about a clauseShow source
clause_info/4Fetches source information for the given clause.Source
clause_name/2Provide a suitable description of the indicated clause.Source
initialization_layout/4Find term-layout of :- initialization directives.Source
open_source/2Hook into clause_info/5 that opens the stream holding the source for a specific clause.Source
predicate_name/2Describe a predicate as [Module:]Name/Arity.Source
unify_goal/5This hook is called to fix up source code manipulations that result from goal expansions.Source
prolog_codewalk.pl  -- Prolog code walkerShow 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
prolog_colour.pl  -- Prolog syntax colouring support.Show source
prolog_format.pl  -- Analyse format specificationsShow source
prolog_metainference.pl  -- Infer meta-predicate propertiesShow source
prolog_pack.pl  -- A package manager for PrologShow source
prolog_source.pl  -- Examine Prolog source-filesShow source
quasi_quotation_syntax/2True when the quasi quotation syntax Syntax can be loaded from Library.Source
xref_close_source/2Called by prolog_close_source/1 to close a source previously opened by the hook prolog:xref_open_source/2.Source
xref_open_source/2Hook to open an xref SourceID.Source
directory_source_files/3True when Files is a sorted list of Prolog source files in Dir.Source
file_alias_path/2True if file Alias points to Dir.Source
file_name_on_path/2True if OnPath a description of File based on the file search path.Source
load_quasi_quotation_syntax/2Import quasi quotation syntax Syntax from Path into the module specified by the first argument.Source
path_segments_atom/2Translate between a path represented as a/b/c and an atom representing the same path.Source
prolog_canonical_source/2Given a user-specification of a source, generate a unique and indexable identifier for it.Source
prolog_close_source/1Close a stream opened using prolog_open_source/2.Source
prolog_open_source/2Open source with given canonical id (see prolog_canonical_source/2) and remove the #!Source
prolog_read_source_term/4Read a term from a Prolog source-file.Source
read_source_term_at_location/3Try to read a Prolog term form an arbitrary location inside a file.Source
requires_library/2known expansion hooks.Source
prolog_stack.pl  -- Examine the Prolog stackShow source
backtrace/1Get and print a stacktrace to the user_error stream.Source
get_prolog_backtrace/2Obtain a backtrace from the current location.Source
get_prolog_backtrace/3Obtain a backtrace from the current location.Source
print_prolog_backtrace/2Print a stacktrace in human readable form to Stream.Source
print_prolog_backtrace/3Print a stacktrace in human readable form to Stream.Source
prolog_stack_frame_property/2True when Property is a property of Frame.Source
stack_guard/1Dynamic multifile hook that is normally not defined.Source
stack_guard/1Dynamic multifile predicate.Source
prolog_stream.pl  -- A stream with Prolog callbacksShow source
open_prolog_stream/4Create a new stream that implements its I/O by calling predicates in Module.Source
prolog_xref.pl  -- Prolog cross-referencer data collectionShow source
pure_input.pl  -- Pure Input from files and streamsShow source
qsave.pl  -- Save current program as a state or executableShow source
qsave_program/1Make a saved state in file `File'.Source
qsave_program/2Make a saved state in file `File'.Source
quasi_quotations.pl  -- Define Quasi Quotation syntaxShow source
quintus.pl  -- Quintus compatibilityShow source
abs/2Unify `Absolute' with the absolute value of `Number'.Source
atom_char/2Same as ISO char_code/2.Source
compile/1Compile files.Source
cos/2Math library predicates.Source
current_stream/3SICStus/Quintus and backward compatible predicate.Source
date/1Get current date as date(Y,M,D).Source
genarg/3Generalised version of ISO arg/3.Source
log/2Math library predicates.Source
log10/2Math library predicates.Source
midstring/3Too difficult to explain.Source
midstring/4Too difficult to explain.Source
midstring/5Too difficult to explain.Source
midstring/6Too difficult to explain.Source
mode/1Ignore a DEC10/Quintus :- mode(Head) declaration.Source
no_style_check/1Same as SWI-Prolog style_check(-Style).Source
on_exception/3Source
otherwise/0For (A -> B ; otherwise -> C).Source
prolog_flag/2Same as ISO current_prolog_flag/2.Source
raise_exception/1Quintus compatible exception handling.Source
simple/1Term is atomic or a variable.Source
sin/2Math library predicates.Source
skip_line/0Skip the rest of the current line (on Stream).Source
skip_line/1Skip the rest of the current line (on Stream).Source
stream_position/3True when Old is the current position in Stream and the stream has been repositioned to New.Source
tan/2Math library predicates.Source
unix/1interface to Unix.Source
random.pl  -- Random numbersShow source
rbtrees.pl  -- Red black treesShow source
is_rbtree/1True if Term is a valide Red-Black tree.Source
list_to_rbtree/2Tree is the red-black tree corresponding to the mapping in List, which should be a list of Key-Value pairs.Source
ord_list_to_rbtree/2Tree is the red-black tree corresponding to the mapping in list List, which should be a list of Key-Value pairs.Source
rb_apply/4If the value associated with key Key is Val0 in Tree, and if call(G,Val0,ValF) holds, then NewTree differs from Tree only in that Key is associated with value ValF in tree NewTree.Source
rb_clone/3`Clone' the red-back tree TreeIn into a new tree TreeOut with the same keys as the original but with all values set to unbound values.Source
rb_del_max/4Delete the largest element from the tree Tree, returning the key Key, the value Val associated with the key and a new tree NewTree.Source
rb_del_min/4Delete the least element from the tree Tree, returning the key Key, the value Val associated with the key and a new tree NewTree.Source
rb_delete/3Delete element with key Key from the tree Tree, returning the value Val associated with the key and a new tree NewTree.Source
rb_delete/4Delete element with key Key from the tree Tree, returning the value Val associated with the key and a new tree NewTree.Source
rb_empty/1Succeeds if Tree is an empty Red-Black tree.Source
rb_fold/4Fold the given predicate over all the key-value pairs in Tree, starting with initial state State0 and returning the final state State.Source
rb_in/3True when Key-Value is a key-value pair in red-black tree Tree.Source
rb_insert/4Add an element with key Key and Value to the tree Tree creating a new red-black tree NewTree.Source
rb_insert_new/4Add a new element with key Key and Value to the tree Tree creating a new red-black tree NewTree.Source
rb_keys/2Keys is unified with an ordered list of all keys in the Red-Black tree Tree.Source
rb_lookup/3True when Value is associated with Key in the Red-Black tree Tree.Source
rb_map/2True if call(Goal, Value) is true for all nodes in T.Source
rb_map/3For all nodes Key in the tree Tree, if the value associated with key Key is Val0 in tree Tree, and if call(G,Val0,ValF) holds, then the value associated with Key in NewTree is ValF.Source
rb_max/3Key is the maximal key in Tree, and is associated with Val.Source
rb_min/3Key is the minimum key in Tree, and is associated with Val.Source
rb_new/1Create a new Red-Black tree Tree.Source
rb_next/4Next is the next element after Key in Tree, and is associated with Val.Source
rb_partial_map/4For all nodes Key in Keys, if the value associated with key Key is Val0 in tree Tree, and if call(G,Val0,ValF) holds, then the value associated with Key in NewTree is ValF.Source
rb_previous/4Previous is the previous element after Key in Tree, and is associated with Val.Source
rb_size/2Size is the number of elements in Tree.Source
rb_update/4Tree NewTree is tree Tree, but with value for Key associated with NewVal.Source
rb_update/5Tree NewTree is tree Tree, but with value for Key associated with NewVal.Source
rb_visit/2Pairs is an infix visit of tree Tree, where each element of Pairs is of the form Key-Value.Source
rdf.plShow source
rdf_ntriples.pl  -- RDF N-triples parser (obsolete)Show source
rdf_parser.plShow source
rdf_triple.pl  -- Create triples from intermediate representationShow source
rdf_write.pl  -- Write RDF/XML from a list of triplesShow source
readline.pl  -- GNU readline interfaceShow source
readutil.pl  -- Read utilitiesShow source
record.pl  -- Access compound arguments by nameShow source
rewrite.plShow source
rlimit.plShow source
sandbox.pl  -- Sandboxed Prolog codeShow source
sandbox_allowed_directive/1Throws an exception if G is not considered a safe directive.Source
sandbox_allowed_expansion/1Throws an exception if G is not considered a safe expansion goal.Source
sandbox_allowed_goal/1Throw an exception if it is not safe to call G.Source
safe_call/1Call Goal if it complies with the sandboxing rules.Source
safe_directive/1Hook to declare additional directives as safe.Source
safe_global_variable/1Declare the given global variable safe to write to.Source
safe_goal/1True if calling Goal provides no security risc.Source
safe_meta/2Hook.Source
safe_primitive/1True if Goal is safe to call (i.e., cannot access dangerous system-resources and cannot upset other parts of the Prolog process).Source
settings.pl  -- Setting managementShow source
convert_setting_text/3Converts from textual form to Prolog Value.Source
current_setting/1True if Setting is a currently defined setting.Source
list_settings/0List settings to current_output.Source
list_settings/1List settings to current_output.Source
load_settings/1Load local settings from File.Source
load_settings/2Load local settings from File.Source
restore_setting/1Restore the value of setting Name to its default.Source
save_settings/0Save modified settings to File.Source
save_settings/1Save modified settings to File.Source
set_setting/2Change a setting.Source
set_setting_default/2Change the default for a setting.Source
setting/2True when Name is a currently defined setting with Value.Source
setting/4Define a setting.Source
setting_property/2Query currently defined settings.Source
sgml.pl  -- SGML, XML and HTML parserShow source
dtd/2DTD is a DTD object created from the file dtd(Type).Source
load_dtd/3Load DtdFile into a DTD.Source
load_html/3Load HTML text from Input and unify the resulting DOM structure with DOM.Source
load_html_file/2Load HTML from File and unify the resulting DOM structure with DOM.Source
load_sgml/3Load SGML text from Input and unify the resulting DOM structure with DOM.Source
load_sgml_file/2Load SGML from File and unify the resulting DOM structure with DOM.Source
load_structure/3Parse Source and return the resulting structure in ListOfContent.Source
load_xml/3Load XML text from Input and unify the resulting DOM structure with DOM.Source
load_xml_file/2Load XML from File and unify the resulting DOM structure with DOM.Source
xml_basechar/1XML character classification predicates.Source
xml_combining_char/1XML character classification predicates.Source
xml_digit/1XML character classification predicates.Source
xml_extender/1XML character classification predicates.Source
xml_ideographic/1XML character classification predicates.Source
xml_is_dom/1True if term statisfies the structure as returned by load_structure/3 and friends.Source
xml_name/1True if Atom is a valid XML name.Source
xml_quote_attribute/2Backward compatibility for versions that allow to specify encoding.Source
xml_quote_cdata/2Backward compatibility for versions that allow to specify encoding.Source
sgml_write.pl  -- XML/SGML writer moduleShow source
sha.pl  -- SHA secure hashesShow source
file_sha1/2True when SHA1 is the SHA1 hash for the content of File.Source
hash_atom/2Convert a list of bytes (integers 0..255) into the usual hexadecimal notation.Source
hmac_sha/4For Options, see sha_hash/3.Source
sha_hash/3Hash is the SHA hash of Data, The conversion is controlled by Options:.Source
sha_hash_ctx/4Hash is the SHA hash of Data.Source
sha_new_ctx/2NewContext is unified with the empty SHA computation context (which includes the Options.) It could later be passed to sha_hash_ctx/4.Source
shell.pl  -- Elementary shell commandsShow source
shlib.pl  -- Utility library for loading foreign objects (DLLs, shared objects)Show source
current_foreign_library/2Query currently loaded shared libraries.Source
load_foreign_library/1Load a shared object or DLL.Source
load_foreign_library/2Load a shared object or DLL.Source
reload_foreign_libraries/0Reload all foreign libraries loaded (after restore of a state created using qsave_program/2.Source
unload_foreign_library/1Unload a shared object or DLL.Source
unload_foreign_library/2Unload a shared object or DLL.Source
use_foreign_library/1Load and install a foreign library as load_foreign_library/1,2 and register the installation using initialization/2 with the option now.Source
use_foreign_library/2Load and install a foreign library as load_foreign_library/1,2 and register the installation using initialization/2 with the option now.Source
snowball.pl  -- The Snowball multi-lingual stemmer libraryShow source
socket.pl  -- Network socket (TCP and UDP) libraryShow source
gethostname/1Return the canonical fully qualified name of this host.Source
negotiate_socks_connection/2Negotiate a connection to DesiredEndpoint over StreamPair.Source
proxy_for_url/3This hook can be implemented to return a proxy to try when connecting to URL.Source
tcp_accept/3This predicate waits on a server socket for a connection request by a client.Source
tcp_bind/2Bind the socket to Address on the current machine.Source
tcp_close_socket/1Closes the indicated socket, making SocketId invalid.Source
tcp_connect/2Connect SocketId.Source
tcp_connect/3Establish a TCP communication as a client.Source
tcp_connect/4Connect a (client) socket to Address and return a bi-directional connection through the stream-handles Read and Write.Source
tcp_fcntl/3Interface to the fcntl() call.Source
tcp_host_to_address/2Translate between a machines host-name and it's (IP-)address.Source
tcp_listen/2Tells, after tcp_bind/2, the socket to listen for incoming requests for connections.Source
tcp_open_socket/2Create streams to communicate to SocketId.Source
tcp_open_socket/3Similar to tcp_open_socket/2, but creates two separate sockets where tcp_open_socket/2 would have created a stream pair.Source
tcp_select/3Same as the built-in wait_for_input/3, but integrates better with event processing and the various options of sockets for Windows.Source
tcp_setopt/2Set options on the socket.Source
tcp_socket/1Creates an INET-domain stream-socket and unifies an identifier to it with SocketId.Source
try_proxy/4Attempt a socket-level connection via the given proxy to TargetAddress.Source
solution_sequences.pl  -- Modify solution sequencesShow source
distinct/1True if Goal is true and no previous solution of Goal bound Witness to the same value.Source
distinct/2True if Goal is true and no previous solution of Goal bound Witness to the same value.Source
group_by/4Group bindings of Template that have the same value for By.Source
limit/2Limit the number of solutions.Source
offset/2Ignore the first Count solutions.Source
order_by/2Order solutions according to Spec.Source
reduced/1Similar to distinct/1, but does not guarantee unique results in return for using a limited amount of memory.Source
reduced/3Similar to distinct/1, but does not guarantee unique results in return for using a limited amount of memory.Source
sort.plShow source
locale_sort/2Sort a list of atoms using the current locale.Source
predsort/3Sorts similar to sort/2, but determines the order of two terms by calling Compare(-Delta, +E1, +E2).Source
ssl.pl  -- Secure Socket Layer (SSL) libraryShow source
statistics.pl  -- Get information about resource usageShow source
streampool.plShow source
syslog.pl  -- Unix syslog interfaceShow source
system.pl  -- System utilitiesShow source
table.plShow source
tabling.pl  -- Tabled execution (SLG WAM)Show source
rename_predicate/2Hook into term_expansion for post processing renaming of the generated predicate.Source
safe_directive/1Allow tabling directives that affect locally defined predicates.Source
abolish_all_tables/0Remove all tables.Source
abolish_table_subgoals/1Abolish all tables that unify with SubGoal.Source
current_table/2True when Trie is the answer table for Variant.Source
start_tabling/2Execute Implementation using tabling.Source
table/1Prepare the given PredicateIndicators for tabling.Source
term_to_json.plShow 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
time.pl  -- Time and alarm libraryShow source
tty.pl  -- Terminal operationsShow source
udp_broadcast.pl  -- A UDP Broadcast BridgeShow source
udp_broadcast_initialize/2causes any required runtime initialization to occur.Source
udp_broadcast_service/2provides the UDP broadcast address for a given Domain.Source
udp_host_to_address/2locates a UDP service by name.Source
ugraphs.pl  -- Graph manipulation libraryShow source
compose/3Calculates the composition of two S-form graphs, which need not have the same set of vertices.Source
del_vertices/3Unify 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.Source
edges/2Edges is the set of edges in UGraph.Source
neighbors/3Neigbours is a sorted list of the neighbours of Vertex in Graph.Source
neighbours/3Neigbours is a sorted list of the neighbours of Vertex in Graph.Source
top_sort/2Sorted is a topological sorted list of nodes in Graph.Source
top_sort/3Sorted is a topological sorted list of nodes in Graph.Source
transpose_ugraph/2Unify NewGraph with a new graph obtained from Graph by replacing all edges of the form V1-V2 by edges of the form V2-V1.Source
ugraph_union/3Is true when Union is the union of Set1 and Set2.Source
vertices/2Strips off the neighbours lists of an S-representation to produce a list of the vertices of the graph.Source
vertices_edges_to_ugraph/3Create a UGraph from Vertices and edges.Source
uid.plShow source
getegid/1GID is the effective group ID of the calling process.Source
geteuid/1UID is the effective user ID of the calling process.Source
getgid/1GID is the real group ID of the calling process.Source
getgroups/1GroupsIDs is the set of supplementary group IDs of the calling process.Source
getuid/1UID is the real user ID of the calling process.Source
group_data/3Value is the value for Field GroupData.Source
group_info/2GroupData represent the group information for Group.Source
initgroups/2Initialise the group access list of the calling process to the registered groups for User and the group Group.Source
set_user_and_group/1Set the UID and GID to the User.Source
set_user_and_group/2Set the UID and GID to the User.Source
setegid/1Set the effective group id of the calling process.Source
seteuid/1Set the effective user id of the calling process.Source
setgid/1Set the group id of the calling process.Source
setgroups/1Set the group access list of the caling process to the indicated groups.Source
setuid/1Set the user id of the calling process.Source
user_data/3Value is the value for Field in UserData.Source
user_info/2UserData represent the passwd information for User.Source
unicode.pl  -- Unicode string handlingShow source
unix.pl  -- Unix specific operationsShow source
detach_IO/0Detach I/O similar to detach_IO/1.Source
detach_IO/1This predicate is intended to create Unix deamon processes.Source
dup/2Interface to Unix dup2(), copying the underlying filedescriptor and thus making both streams point to the same underlying object.Source
exec/1Replace the running program by starting Command.Source
fork/1Clone the current process into two branches.Source
fork_exec/1Fork (as fork/1) and exec (using exec/1) the child immediately.Source
kill/2Deliver a software interrupt to the process with identifier Pid using software-interrupt number Signal.Source
pipe/2Create a communication-pipe.Source
prctl/1Access to Linux process control operations.Source
sysconf/1Access system configuration.Source
wait/2Wait for a child to change status.Source
uri.pl  -- Process URIsShow source
iri_normalized/2NormalizedIRI is the normalized form of IRI.Source
iri_normalized/3NormalizedGlobalIRI is the normalized global version of IRI.Source
uri_authority_components/2Break-down the authority component of a URI.Source
uri_authority_data/3Provide access the uri_authority structure.Source
uri_components/2Break a URI into its 5 basic components according to the RFC-3986 regular expression:.Source
uri_data/3Provide access the uri_component structure.Source
uri_data/4NewComponents is the same as Components with Field set to Data.Source
uri_encoded/3Encoded is the URI encoding for Value.Source
uri_file_name/2Convert between a URI and a local file_name.Source
uri_iri/2Convert between a URI, encoded in US-ASCII and an IRI.Source
uri_is_global/1True if URI has a scheme.Source
uri_normalized/2NormalizedURI is the normalized form of URI.Source
uri_normalized/3NormalizedGlobalURI is the normalized global version of URI.Source
uri_normalized_iri/2As uri_normalized/2, but percent-encoding is translated into IRI Unicode characters.Source
uri_normalized_iri/3NormalizedGlobalIRI is the normalized global IRI of URI.Source
uri_query_components/2Perform encoding and decoding of an URI query string.Source
uri_resolve/3Resolve a possibly local URI relative to Base.Source
url.pl  -- Analysing and constructing URLShow source
file_name_to_url/2Translate between a filename and a file:// URL.Source
global_url/3Translate a possibly relative URL into an absolute one.Source
http_location/2Construct or analyze an HTTP location.Source
is_absolute_url/1True if URL is an absolute URL.Source
parse_url/2Construct or analyse a URL.Source
parse_url/3Similar to parse_url/2 for relative URLs.Source
parse_url_search/2Construct or analyze an HTTP search specification.Source
set_url_encoding/2Query and set the encoding for URLs.Source
url_iri/2Convert between a URL, encoding in US-ASCII and an IRI.Source
www_form_encode/2En/decode to/from application/x-www-form-encoded.Source
utf8.pl  -- UTF-8 encoding/decoding on lists of character codes.Show source
uuid.pl  -- Universally Unique Identifier (UUID) LibraryShow source
uuid/1UUID is an atom representing a new UUID.Source
uuid/2Create a new UUID according to Options.Source
varnumbers.pl  -- Utilities for numbered termsShow source
max_var_number/3True when Max is the max of Start and the highest numbered $VAR(N) term.Source
numbervars/1Number variables in Term using $VAR(N).Source
varnumbers/2Inverse of numbervars/1.Source
varnumbers/3Inverse of numbervars/3.Source
varnumbers_names/3If Term is a term with numbered and named variables using the reserved term '$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.Source
when.pl  -- Conditional coroutiningShow source
when/2Execute Goal when Condition is satisfied.Source
writef.pl  -- Old-style formatted writeShow source
swritef/2Use writef/1 or writef/2 and write the result to a string.Source
swritef/3Use writef/1 or writef/2 and write the result to a string.Source
writef/1Formatted write to the current_output.Source
writef/2Formatted write to the current_output.Source
www_browser.pl  -- Open a URL in the users browserShow source
xmldsig.pl  -- XML Digital signatureShow source
xmld_signed_DOM/3Translate an XML DOM structure in a signed version.Source
xmld_verify_signature/4Confirm that an ds:Signature element contains a valid signature.Source
xmlenc.pl  -- XML encryption libraryShow source
xpath.pl  -- Select nodes in an XML DOMShow source
xsdp_types.pl  -- XML-Schema primitive typesShow source
yall.pl  -- Lambda expressionsShow source
zlib.pl  -- Zlib wrapper for SWI-PrologShow source
encoding_filter/3Act as plugin for library(http/http_open) for processing content with Content-encoding: gzip.Source
gzopen/3Open a file compatible with the gzip program.Source
gzopen/4Open a file compatible with the gzip program.Source