library

Prolog files

aggregate.pl  -- Aggregation operators on backtrackable predicatesShow 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
arithmetic.pl  -- Extensible arithmeticShow source
assoc.pl  -- Binary associationsShow source
atom.pl  -- Operations on atomsShow source
backcomp.pl  -- Backward compatibilityShow 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.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
broadcast.pl  -- Event serviceShow source
broadcast/1Broadcast given event.Source
broadcast_request/1Broadcast given event till accepted.Source
listen/2Open a channel for listening for events of the given `Templ'.Source
listen/3Open a channel for listening for events of the given `Templ'.Source
listening/3returns currently open channels.Source
unlisten/1Destroy a channel.Source
unlisten/2Destroy a channel.Source
unlisten/3Destroy a channel.Source
charsio.pl  -- I/O on Lists of Character CodesShow 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_cross_module_calls/0List calls from one module to another using Module:Goal where the callee is not defined exported, public or multifile, i.e., where the callee should be considered private.Source
list_format_errors/0List argument errors for format/2,3.Source
list_format_errors/1List argument errors for format/2,3.Source
list_rationals/0List rational numbers that appear in clauses.Source
list_rationals/1List rational numbers that appear in clauses.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
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
csv.pl  -- Process CSV (Comma-Separated Values) dataShow source
ctypes.pl  -- Character code classificationShow source
date.pl  -- Process dates and timesShow source
date_time_value/3Extract values from a date-time structure.Source
day_of_the_week/2Computes the day of the week for a given date.Source
day_of_the_year/2Computes the day of the year for a given date.Source
parse_time/2Stamp is a timestamp created from parsing Text using the representation Format.Source
parse_time/3Stamp is a timestamp created from parsing Text using the representation Format.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
dict_size/2True when KeyCount is the number of keys 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
mapdict/2True when all dicts have the same set of keys and call(Goal, Key, V1, ...) is true for all keys in the dicts.Source
mapdict/3True when all dicts have the same set of keys and call(Goal, Key, V1, ...) is true for all keys in the dicts.Source
mapdict/4True when all dicts have the same set of keys and call(Goal, Key, V1, ...) is true for all keys in the dicts.Source
dif.pl  -- The dif/2 constraintShow source
edinburgh.pl  -- Some traditional Edinburgh predicatesShow source
edit.pl  -- Editor interfaceShow source
edit/0Edit associated or script file.Source
edit/1Edit indicated object.Source
edit_command/2This predicate should specify the shell-command called to invoke the user's editor.Source
locate/2Locate object from the specified location.Source
locate/3Source
select_location/3Source
error.pl  -- Error generating supportShow source
explain.pl  -- Describe Prolog 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
git/2Run a GIT command.Source
git_branches/2True when Branches is the list of branches in the repository.Source
git_default_branch/2True when BranchName is the current branch of a repository.Source
git_default_branch/2True when BranchName is the default branch of a repository.Source
git_describe/2Describe the running version based on GIT tags and hashes.Source
git_hash/2Return the hash of the indicated object.Source
git_ls_remote/3Execute git ls-remote against the remote repository to fetch references from the remote.Source
git_ls_tree/2True when Entries is a list of entries in the the GIT repository, Each entry is a term:.Source
git_open_file/4Open the file File in the given bare GIT repository on the given branch (treeisch).Source
git_process_output/3Run a git-command and process the output with OnOutput, which is called as call(OnOutput, Stream).Source
git_remote_branches/2Exploit git_ls_remote/3 to fetch the branches from a remote repository without downloading it.Source
git_remote_url/3URL is the remote (fetch) URL for the given Remote.Source
git_shortlog/3Fetch information like the GitWeb change overview.Source
git_show/4Fetch info from a GIT commit.Source
git_tags/2True when Tags is a list of git tags defined on the repository.Source
git_tags_on_branch/3Tags is a list of tags in Branch on the GIT repository Dir, most recent tag first.Source
is_git_directory/1True if Directory is a git directory (Either checked out or bare).Source
is_git_hash/1True when Atom represents a GIT hash, i.e., a 40 digit hexadecimal string.Source
hashtable.pl  -- Hash tablesShow source
ht_del/3Delete Key-Value from HT.Source
ht_gen/3True when Key-Value is in HT.Source
ht_get/3True when Key is in HT and associated with Value.Source
ht_is_hashtable/1True when HT is a hash table.Source
ht_keys/2True when Keys is an ordered set of all keys in HT.Source
ht_new/1Create a new hash table.Source
ht_pairs/2True when Pairs and HT represent the same association.Source
ht_put/3Add a Key-Value to HT.Source
ht_put/5Add Key-Value to HT.Source
ht_put_new/3As ht_put/3, but fails if Key is already in HT instead of updating the associated value.Source
ht_size/2True when Size is the number of key-value pairs in HT.Source
ht_update/4True when HT holds Key-Old before and Key-New after this call.Source
heaps.pl  -- heaps/priority queuesShow source
help.pl  -- Text based manualShow source
increval.pl  -- Incremental dynamic predicate modificationShow source
incr_directly_depends/2True if Goal1 depends on Goal2 in the IDG.Source
incr_invalid_subgoals/1List is a sorted list (set) of the incremental subgoals that are currently invalid.Source
incr_invalidate_call/1This is the XSB name, but the manual says incr_invalidate_calls/1 and the comment with the code suggests this is misnamed.Source
incr_invalidate_calls/1Invalidate all tables for subgoals of Goal as well as tables that are affected by these.Source
incr_is_invalid/1True when Subgoal's table is marked as invalid.Source
incr_propagate_calls/1Activate the monotonic answer propagation similarly to when a new fact is asserted for a monotonic dynamic predicate.Source
incr_table_update/0Updated all invalid tables.Source
incr_trans_depends/2True for each pair in the transitive closure of incr_directly_depends(G1, G2).Source
is_incremental_subgoal/1This predicate non-deterministically unifies Subgoal with incrementally tabled subgoals that are currently table entries.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
main.pl  -- Provide entry point for scriptsShow source
make.pl  -- Reload modified source filesShow source
modules.pl  -- Module utility predicatesShow 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 sets.Source
meta_options/3Perform meta-expansion on options that are module-sensitive.Source
option/2Get an Option from Options.Source
option/3Get an Option from Options.Source
select_option/3Get and remove Option from Options.Source
select_option/4Get and remove Option with default value.Source
optparse.pl  -- command line parsingShow source
ordsets.pl  -- Ordered set manipulationShow source
pairs.pl  -- Operations on key-value listsShow source
pprint.pl  -- Pretty Print Prolog termsShow source
predicate_options.pl  -- Access and analyse predicate optionsShow 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
set_breakpoint_condition/2Set a condition for of the breakpoint with given Id.Source
prolog_clause.pl  -- Get detailed source-information about a clauseShow source
prolog_code.pl  -- Utilities for reasoning about codeShow source
body_term_calls/2True when BodyTerm calls Goal.Source
comma_list/2True if CommaList is a nested term over the ','/2 (';'/2) functor and List is a list expressing the elements of the conjunction.Source
extend_goal/3Extend the possibly qualified Goal0 with additional arguments from Extra.Source
head_name_arity/3Similar to functor/3, but deals with SWI-Prolog's zero-argument callable terms and avoids creating a non-callable term if Name is not an atom and Arity is zero.Source
is_control_goal/1True if Goal is a compiled Prolog control structure.Source
is_predicate_indicator/1True when Term is a predicate indicator.Source
mkconj/3Create a conjunction or disjunction from two terms.Source
mkdisj/3Create a conjunction or disjunction from two terms.Source
most_general_goal/2General is the most general version of Goal.Source
pi_head/2Translate between a PredicateIndicator and a Goal term.Source
predicate_label/2Create a human-readable label for the given predicate indicator.Source
predicate_sort_key/2Key is the (module-free) name of the predicate for sorting purposes.Source
semicolon_list/2True if CommaList is a nested term over the ','/2 (';'/2) functor and List is a list expressing the elements of the conjunction.Source
prolog_codewalk.pl  -- Prolog code walkerShow source
prolog_colour.pl  -- Prolog syntax colouring support.Show source
prolog_debug.pl  -- User level debugging toolsShow source
prolog_format.pl  -- Analyse format specificationsShow source
prolog_jiti.pl  -- Just In Time Indexing (JITI) utilitiesShow source
jiti_list/0List the JITI (Just In Time Indexes) of selected predicates.Source
jiti_list/1List the JITI (Just In Time Indexes) of selected predicates.Source
jiti_suggest_modes/0Propose modes for the predicates referenced by Spec.Source
jiti_suggest_modes/1Propose modes for the predicates referenced by Spec.Source
prolog_metainference.pl  -- Infer meta-predicate propertiesShow 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_profile.pl  -- Execution profilerShow source
prolog_source.pl  -- Examine Prolog source-filesShow source
prolog_stack.pl  -- Examine the Prolog stackShow source
prolog_xref.pl  -- Prolog cross-referencer data collectionShow source
pure_input.pl  -- Pure Input from files and streamsShow source
quasi_quotations.pl  -- Define Quasi Quotation syntaxShow source
quintus.pl  -- Quintus compatibilityShow source
random.pl  -- Random numbersShow 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
cd/0Change working directory.Source
cd/1Change working directory.Source
dirs/0Manage the directory stack:.Source
ls/0Listing similar to Unix =ls -F=, flagging directories with =/=.Source
ls/1Listing similar to Unix =ls -F=, flagging directories with =/=.Source
mv/2Move (Rename) a file.Source
popd/0Manage the directory stack:.Source
pushd/0Manage the directory stack:.Source
pushd/1Manage the directory stack:.Source
pwd/0Print current working directory.Source
rm/1Remove (unlink) a file.Source
shell/0Execute an interactive shell.Source
shlib.pl  -- Utility library for loading foreign objects (DLLs, shared objects)Show source
solution_sequences.pl  -- Modify solution sequencesShow source
call_nth/2True when Goal succeeded for the Nth time.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
statistics.pl  -- Get information about resource usageShow 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.plShow source
threadutil.pl  -- Interactive thread utilitiesShow source
ugraphs.pl  -- Graph manipulation libraryShow source
url.pl  -- Analysing and constructing URLShow source
varnumbers.pl  -- Utilities for numbered termsShow source
wfs.pl  -- Well Founded Semantics interfaceShow source
when.pl  -- Conditional coroutiningShow source
www_browser.pl  -- Open a URL in the users browserShow source
yall.pl  -- Lambda expressionsShow source