Did you know ... Search Documentation:
Title for pldoc(dir_index)

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 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
convlist/3Similar to maplist/3, but elements for which call(Goal, ElemIn, _) fails are omitted from ListOut.Source
exclude/3Filter elements for which Goal fails.Source
foldl/4Fold 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.Source
foldl/5Fold 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.Source
foldl/6Fold 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.Source
foldl/7Fold 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.Source
include/3Filter elements for which Goal succeeds.Source
maplist/2True if Goal is successfully applied on all matching elements of the list.Source
maplist/3True if Goal is successfully applied on all matching elements of the list.Source
maplist/4True if Goal is successfully applied on all matching elements of the list.Source
maplist/5True if Goal is successfully applied on all matching elements of the list.Source
partition/4Filter elements of List according to Pred.Source
partition/5Filter List according to Pred in three sets.Source
scanl/4Scan 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.Source
scanl/5Scan 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.Source
scanl/6Scan 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.Source
scanl/7Scan 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.Source
apply_macros.pl  -- Goal expansion rules to avoid meta-callingShow source
archive.pl  -- Access several archive formatsShow source
arithmetic.pl  -- Extensible arithmeticShow source
arithmetic_expression_value/2True when Result unifies with the arithmetic result of evaluating Expression.Source
arithmetic_function/1Declare a predicate as an arithmetic function.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
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
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
base64.pl  -- Base64 encoding and decodingShow source
bdb.pl  -- Berkeley DB interfaceShow source
bdb_close/1Close BerkeleyDB database indicated by DB.Source
bdb_close_environment/1Close a database environment that was explicitly created using bdb_init/2.Source
bdb_closeall/0Close all currently open databases and environments.Source
bdb_current/1True when DB is a handle to a currently open database.Source
bdb_current_environment/1True when Environment is a currently known environment.Source
bdb_del/3Delete the first matching key-value pair from the database.Source
bdb_delall/3Delete all matching key-value pairs from the database.Source
bdb_enum/3Enumerate the whole database, unifying the key-value pairs to Key and Value.Source
bdb_environment_property/2True when Property is a property of Environment.Source
bdb_get/3Query the database.Source
bdb_getall/3Get all values associated with Key.Source
bdb_init/1Initialise a DB environment.Source
bdb_init/2Initialise a DB environment.Source
bdb_open/4Open File holding a database.Source
bdb_put/3Add a new key-value pair to the database.Source
bdb_transaction/1Start a transaction, execute Goal and terminate the transaction.Source
bdb_transaction/2Start a transaction, execute Goal and terminate the transaction.Source
bdb_version/1True when Version identifies the database version.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
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_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
check_installation.pl  -- Check installation issues and featuresShow source
check_config_files/0Examines the locations of config files.Source
check_installation/0Check features of the installed system.Source
check_installation/1As check_installation/0, but additionally returns a list of Component-Problem pairs.Source
test_installation/0Run regression tests in the installed system.Source
test_installation/1Run regression tests in the installed system.Source
update_config_files/0Move config files from their old location to the new if the file or directory exists in the old location but not in the new.Source
chr.plShow source
debug_ask_continue/1Hook to ask for a CHR debug continuation.Source
debug_event/2Hook into the CHR debugger.Source
debug_interact/3Hook into the CHR debugger to display Event and ask for the next command to execute.Source
codesio.pl  -- I/O on Lists of Character CodesShow source
coinduction.pl  -- Co-Logic ProgrammingShow source
console_input.plShow source
crypt.plShow source
crypto.pl  -- Cryptography and authentication libraryShow source
csv.pl  -- Process CSV (Comma-Separated Values) dataShow source
csv/3Prolog DCG to `read/write' CSV data.Source
csv/4Prolog DCG to `read/write' CSV data.Source
csv_options/2Compiled is the compiled representation of the CSV processing options as they may be passed into csv//2, etc.Source
csv_read_file/2Read a CSV file into a list of rows.Source
csv_read_file/3Read a CSV file into a list of rows.Source
csv_read_file_row/3True when Row is a row in File.Source
csv_read_row/3Read the next CSV record from Stream and unify the result with Row.Source
csv_read_stream/3Read CSV data from Stream.Source
csv_write_file/2Write a list of Prolog terms to a CSV file.Source
csv_write_file/3Write a list of Prolog terms to a CSV file.Source
csv_write_stream/3Write the rows in Data to Stream.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
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
assertion_failed/2This hook is called if the Goal of assertion/1 fails.
debug_print_hook/3Hook called by debug/3.Source
assertion/1Acts similar to C assert() macro.Source
debug/1Add/remove a topic from being printed.Source
debug/3Format a message if debug topic is enabled.Source
debug_message_context/1Specify additional context for debug messages.Source
debugging/1Examine debug topics.Source
debugging/2Examine debug topics.Source
list_debug_topics/0List currently known debug topics and their setting.Source
nodebug/1Add/remove a topic from being printed.Source
dialect.pl  -- Support multiple Prolog dialectsShow source
expects_dialect/1Tell Prolog all subsequent code to the end of the file or the next :- expects_dialect/1 directive is written for the indicated Dialect.Source
source_exports/2True if Source exports Export.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
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
doc_browser/0Open user's default browser on the documentation server.Source
doc_browser/1Open user's default browser on the documentation server.Source
doc_enable/1Actually activate the PlDoc server.Source
doc_server/1Start a documentation server in the current Prolog process.Source
doc_server/2Start a documentation server in the current Prolog process.Source
doc_latex.pl  -- PlDoc LaTeX backendShow source
doc_latex/3Process one or more objects, writing the LaTeX output to OutFile.Source
latex_for_file/3Generate a LaTeX description of all commented predicates in File, writing the LaTeX text to the stream Out.Source
latex_for_predicates/3Generate LaTeX for a list of predicate indicators.Source
latex_for_wiki_file/3Write a LaTeX translation of a Wiki file to the steam Out.Source
double_metaphone.pl  -- Phonetic string matchingShow source
double_metaphone/2Same as double_metaphone/3, but only returning the primary metaphone.Source
double_metaphone/3Create metaphone and alternative metaphone from In.Source
edinburgh.pl  -- Some traditional Edinburgh predicatesShow source
debug/0Switch on/off debug mode.Source
display/1Write a term, ignoring operators and special syntax constructs such as brace terms ({a}) and lists ([a,b,c]).Source
display/2Write a term, ignoring operators and special syntax constructs such as brace terms ({a}) and lists ([a,b,c]).Source
fileerrors/2Query and change the fileerrors flag.Source
nodebug/0Switch on/off debug mode.Source
reconsult/1Load source file(s), wiping the old content first.Source
unknown/2Edinburgh Prolog predicate for dealing dealing with undefined procedures.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
editline.pl  -- BSD libedit based command line editingShow source
el_add_history/2Add a line to the command line history.Source
el_addfn/4Add a new command to the command line editor associated with Input.Source
el_bind/2Invoke the libedit bind command with the given arguments.Source
el_cursor/2Move the cursor Move character forwards (positive) or backwards (negative).Source
el_deletestr/2Delete Count characters before the cursor.Source
el_history/2Perform a generic action on the history.Source
el_history_events/2Unify Events with a list of pairs of the form Num-String, where Num is the event number and String is the associated string without terminating newline.Source
el_insertstr/2Insert Text at the cursor.Source
el_line/2Fetch the currently buffered input line.Source
el_read_history/2Read the history saved using el_write_history/2.Source
el_setup/1This hooks is called as forall(el_setup(Input), true) after the input stream has been wrapped, the default Prolog commands have been added and the default user setup file has been sourced using el_source/2.Source
el_source/2Initialise editline by reading the contents of File.Source
el_unwrap/1Remove the libedit wrapper for In and the related output and error streams.Source
el_wrap/0Enable using editline on the standard user streams if user_input is connected to a terminal.Source
el_wrap/4Enable editline on the stream-triple <In,Out,Error>.Source
el_wrapped/1True if In is a stream wrapped by el_wrap/3.Source
el_write_history/2Save editline history to File.Source
error.pl  -- Error generating supportShow source
explain.pl  -- Describe Prolog TermsShow source
fastrw.pl  -- Fast reading and writing of termsShow source
files.plShow source
filesex.pl  -- Extended operations on filesShow source
chmod/2Set the mode of the target file.Source
copy_directory/2Copy the contents of the directory From to To (recursively).Source
copy_file/2Copy a file into a new file or directory.Source
delete_directory_and_contents/1Recursively remove the directory Dir and its contents.Source
delete_directory_contents/1Remove all content from directory Dir, without removing Dir itself.Source
directory_file_path/3True when Path is the full path-name for File in Dir.Source
directory_member/3True when Member is a path inside Directory.Source
link_file/3Create a link in the filesystem from NewPath to OldPath.Source
make_directory_path/1Create Dir and all required components (like mkdir -p).Source
relative_file_name/3True when RelPath is Path, relative to the file RelToFile.Source
set_time_file/3Query and set POSIX time attributes of a file.Source
gensym.pl  -- Generate unique symbolsShow source
gensym/2Generate <Base>1, <Base>2, etc atoms on each subsequent call.Source
reset_gensym/0Reset all gensym counters.Source
reset_gensym/1Reset a specific gensym counter.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 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_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
hash_stream.pl  -- Maintain a hash on a streamShow source
hashtable.pl  -- Hash tablesShow source
heaps.pl  -- heaps/priority queuesShow 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
help.pl  -- Text based manualShow source
hotfix.pl  -- Load hotfixes into executablesShow source
increval.pl  -- Incremental dynamic predicate modificationShow source
intercept.pl  -- Intercept and signal interfaceShow source
iostream.pl  -- Utilities to deal with streamsShow source
iso_639.plShow source
isub.pl  -- isub: a string similarity measureShow source
jpl.pl  -- A Java interface for SWI Prolog 7.xShow source
lazy_lists.pl  -- Lazy list handlingShow 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
clumped/2Pairs is a list of Item-Count pairs that represents the run length encoding of Items.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
max_member/3True when Max is the largest member according to Pred, which must be a 2-argument callable that behaves like (@=<)/2.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
min_member/3True when Min is the smallest member according to Pred, which must be a 2-argument callable that behaves like (@=<)/2.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 position.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 the lists Set1 and Set2.Source
main.pl  -- Provide entry point for scriptsShow source
make.pl  -- Reload modified source filesShow source
make/0Reload all source files that have been changed since they were loaded.Source
reload_file/1Reload file into the proper module.Source
mallocinfo.pl  -- Memory allocation detailsShow source
mallinfo/1Return the content of the struct mallinfo returned by mallinfo() as a dict.Source
malloc_info/1Interface to malloc_info(), which provides an XML document describing the status of the GNU glibc malloc implementation.Source
md5.pl  -- MD5 hashesShow source
memfile.plShow source
modules.pl  -- Module utility predicatesShow source
current_temporary_module/1True when we are executing in the given temporary module context.Source
in_temporary_module/3Run Goal on temporary loaded sources and discard the module and loaded predicates after completion.Source
mqi.plShow source
mqi_start/0Main entry point for running the Machine Query Interface in "Embedded Mode" and designed to be called from the command line.Source
mqi_start/1Starts a Prolog Machine Query Interface ('MQI') using Options.Source
mqi_stop/1If Server_Thread_ID is a variable, stops all Machine Query Interfaces and associated threads.Source
nb_rbtrees.pl  -- Non-backtrackable operations on red black treesShow source
nb_rb_get_node/3True if Node is the node in RBTree associated to Key.Source
nb_rb_insert/3Add Key-Value to the tree RBTree using non-backtrackable destructive assignment.Source
nb_rb_node_value/2Value is the value associated to Node.Source
nb_rb_set_node_value/2Associate Value with Node.Source
nb_set.pl  -- Non-backtrackable setsShow source
obfuscate.pl  -- Code obfuscatingShow source
occurs.pl  -- Finding and counting sub-termsShow source
contains_term/2Succeeds if Sub is contained in Term (=, deterministically).Source
contains_var/2Succeeds if Sub is contained in Term (==, deterministically).Source
free_of_term/2Succeeds of Sub does not unify to any subterm of Term.Source
free_of_var/2Succeeds of Sub is not equal (==) to any subterm of Term.Source
occurrences_of_term/3Count the number of SubTerms in Term.Source
occurrences_of_var/3Count the number of SubTerms in Term.Source
sub_term/2Generates (on backtracking) all subterms of Term.Source
sub_term_shared_variables/3If Sub is a sub term of Term, Vars is bound to the list of variables in Sub that also appear outside Sub in Term.Source
sub_var/2Generates (on backtracking) all subterms (==) of Term.Source
odbc.plShow source
operators.pl  -- Manage operatorsShow source
option.pl  -- Option list processingShow 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
pairs.pl  -- Operations on key-value listsShow source
group_pairs_by_key/2Group values with equivalent (==/2) consecutive keys.Source
map_list_to_pairs/3Create a Key-Value list by mapping each element of List.Source
pairs_keys/2Remove the values from a list of Key-Value pairs.Source
pairs_keys_values/3True if Keys holds the keys of Pairs and Values the values.Source
pairs_values/2Remove the keys from a list of Key-Value pairs.Source
transpose_pairs/2Swap Key-Value to Value-Key.Source
paxos.pl  -- A Replicated Data StoreShow source
pcre.pl  -- Perl compatible regular expression matching for SWI-PrologShow source
pdt_console.plShow source
pdt_install_console/0Support get_single_char/1 in PDT console.Source
pengines.pl  -- Pengines: Web Logic Programming Made EasyShow source
add_error_details/3Add format error code and location information to an error.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_done/0Called from the pengine thread at_exit option.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 master (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 (child) pengine that has prompted its master (parent) 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
portray_blob/2Portray non-text blobs that may appear in output terms.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
pengines_sandbox.pl  -- Declare Pengine interaction sandbox-safeShow source
persistency.pl  -- Provide persistent dynamic predicatesShow source
current_persistent_predicate/1True if PI is a predicate that provides access to the persistent database DB.Source
db_assert/1Assert Term into the database and record it for persistency.Source
db_attach/2Use File as persistent database for the calling module.Source
db_attached/1True if the context module attached to the persistent database File.Source
db_detach/0Detach persistency from the calling module and delete all persistent clauses from the Prolog database.Source
db_retract/1Retract terms from the database one-by-one.Source
db_retractall/1Retract all matching facts and do the same in the database.Source
db_sync/1Synchronise database with the associated file.Source
db_sync_all/1Sync all registered databases.Source
persistent/1Declare dynamic database terms.Source
pio.pl  -- Pure I/OShow source
pldoc.pl  -- Process source documentationShow source
plunit.pl  -- Unit TestingShow source
porter_stem.plShow source
portray_text.pl  -- Portray textShow source
is_text_code/1Multifile hook that can be used to extend the set of character codes that is recognised as likely text.Source
portray_text/1Switch portraying on or off.Source
set_portray_text/2Set options for portraying.Source
set_portray_text/3Set options for portraying.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
is_process/1True if PID might be a process.Source
process_create/3Create a new process running the file Exe and using arguments from the given list.Source
process_group_kill/1Send signal to the group containing process PID.Source
process_group_kill/2Send signal to the group containing process PID.Source
process_id/1True if PID is the process id of the running Prolog process.Source
process_id/2PID is the process id of Process.Source
process_kill/1Send signal to process PID.Source
process_kill/2Send signal to process PID.Source
process_release/1Release process handle.Source
process_set_method/1Determine how the process is created on Unix systems.Source
process_wait/2True if PID completed with Status.Source
process_wait/3True if PID completed with Status.Source
prolog_autoload.pl  -- Autoload all dependenciesShow 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_info/5Fetches 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
make_varnames/5Create a Term varnames(...) where each argument contains the name of the variable at that offset.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
unify_term/2Unify the two terms, where T2 is created by writing the term and reading it back in, but be aware that rounding problems may cause floating point numbers not to unify.Source
prolog_code.pl  -- Utilities for reasoning about codeShow source
prolog_codewalk.pl  -- Prolog code walkerShow source
prolog_colour.pl  -- Prolog syntax colouring support.Show 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_config.pl  -- Provide configuration informationShow source
apple_bundle_libdir/1If we are part of a MacOS bundle the C libraries are in the bundle Frameworks directory and the executable is in the bundle MacOS directory.Source
prolog_dump_runtime_variables/0Dump the current configuration in shell format.Source
prolog_debug.pl  -- User level debugging toolsShow source
prolog_deps.pl  -- Compute file dependenciesShow source
prolog_format.pl  -- Analyse format specificationsShow source
format_spec/2Parse a format string.Source
format_spec/3DCG for parsing format strings.Source
format_types/2True when Format requires an argument list with terms of the type specified by Types.Source
prolog_history.pl  -- Per-directory persistent commandline historyShow source
prolog_install.pl  -- Installation support predicatesShow source
cmake_qcompile/2Qcompile on behalf of CMAKE installation.Source
cmake_save_man_index/0Create swi('doc/manindex.db') during the build process.Source
qcompile_libraries/0Quick-load compilation of the Prolog libraries.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
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
atom_version/2Translate between atomic version representation and term representation.Source
environment/2Hook to define the environment for building packs.Source
pack_attach/2Attach a single package in Dir.Source
pack_info/1Print more detailed information about Pack.Source
pack_install/1Install a package.Source
pack_install/2Install package Name.Source
pack_list/1Query package server and installed packages and display results.Source
pack_list_installed/0List currently installed packages.Source
pack_property/2True when Property is a property of an installed Pack.Source
pack_rebuild/0Rebuild foreign components of all packages.Source
pack_rebuild/1Rebuilt possible foreign components of Pack.Source
pack_remove/1Remove the indicated package.Source
pack_search/1Query package server and installed packages and display results.Source
pack_upgrade/1Try to upgrade the package Pack.Source
pack_url_file/2True if File is a unique id for the referenced pack and version.Source
ssl_verify/5Currently we accept all certificates.Source
prolog_server.plShow source
prolog_source.pl  -- Examine Prolog source-filesShow source
prolog_stack.pl  -- Examine the Prolog stackShow source
prolog_stream.pl  -- A stream with Prolog callbacksShow source
prolog_trace.pl  -- Print access to predicatesShow source
notraceall/0Remove all trace points.Source
trace/1Print passes through ports of specified predicates.Source
trace/2Print passes through ports of specified predicates.Source
tracing/2True if Spec is traced using Ports.Source
prolog_versions.pl  -- Demand specific Prolog versionsShow source
require_prolog_version/2Claim that the running Prolog version is at least version Required and provides the requested Features.Source
prolog_wrap.pl  -- Wrapping predicatesShow source
prolog_xref.pl  -- Prolog cross-referencer data collectionShow source
called_by/2If this succeeds, the cross-referencer assumes Goal may call any of the goals in ListOfCalled.Source
called_by/4True 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.Source
hook/1True if Goal is a hook that is called spontaneously (e.g., from foreign code).Source
meta_goal/2Define meta-predicates.Source
xref_called/3True when By is called from Called in Source.Source
xref_called/4True when By is called from Called in Source.Source
xref_called/5True when By is called from Called in Source.Source
xref_clean/1Reset the database for the given source.Source
xref_comment/3Is true when Source has a section comment with Title and Comment.Source
xref_comment/4Is true when Head in Source has the given PlDoc comment.Source
xref_current_source/1Check what sources have been analysed.Source
xref_defined/3Test if Goal is accessible in Source.Source
xref_definition_line/2If the 3th argument of xref_defined contains line info, return this in Line.Source
xref_done/2Cross-reference executed at Time.Source
xref_exported/2True when Source exports Head.Source
xref_hook/1Definition of known hooks.Source
xref_meta/2True when Called is a list of terms called from Head.Source
xref_meta/3True when Head calls Called in Source.Source
xref_mode/3Is true when Source provides a predicate with Mode and determinism.Source
xref_module/2True if Module is defined in Source.Source
xref_op/2Give the operators active inside the module.Source
xref_option/2True when Source was processed using Option.Source
xref_prolog_flag/4True when Flag is set to Value at Line in Source.Source
xref_public_list/3Find meta-information about File.Source
xref_public_list/4Find meta-information about File.Source
xref_public_list/6Find meta-information about File.Source
xref_public_list/7Find meta-information about File.Source
xref_source/1Generate the cross-reference data for Source if not already done and the source is not modified.Source
xref_source/2Generate the cross-reference data for Source if not already done and the source is not modified.Source
xref_source_file/3Find named source file from Spec, relative to Src.Source
xref_source_file/4Find named source file from Spec, relative to Src.Source
xref_uses_file/3True when Source tries to load a file using Spec.Source
protobufs.pl  -- Google's Protocol Buffers ("protobufs")Show source
pure_input.pl  -- Pure Input from files and streamsShow source
lazy_list_character_count/3True when CharCount is the current character count in the Lazy list.Source
lazy_list_location/3Determine current (error) location in a lazy list.Source
phrase_from_file/2Process the content of File using the DCG rule Grammar.Source
phrase_from_file/3As phrase_from_file/2, providing additional Options.Source
phrase_from_stream/2Run Grammer against the character codes on Stream.Source
stream_to_lazy_list/2Create a lazy list representing the character codes in Stream.Source
syntax_error/3Throw the syntax error Error at the current location of the input.Source
pwp.pl  -- Prolog Well-formed PagesShow source
qpforeign.pl  -- Quintus compatible foreign loaderShow source
qsave.pl  -- Save current program as a state or executableShow source
arch_shlib/3This is a user defined hook called by qsave_program/2.Source
qsave_program/1Make a saved state in file `File'.Source
qsave_program/2Make a saved state in file `File'.Source
qsave_toplevel/0Called to handle `-c file` compilaton.Source
quasi_quotations.pl  -- Define Quasi Quotation syntaxShow source
phrase_from_quasi_quotation/2Process the quasi quotation using the DCG Grammar.Source
quasi_quotation_syntax/1Declare the predicate SyntaxName/4 to implement the the quasi quote syntax SyntaxName.Source
quasi_quotation_syntax_error/1Report syntax_error(Error) using the current location in the quasi quoted input parser.Source
with_quasi_quotation_input/3Process the quasi-quoted Content using Stream parsed by Goal.Source
quintus.pl  -- Quintus compatibilityShow source
random.pl  -- Random numbersShow source
rbtrees.pl  -- Red black treesShow source
rdf.pl  -- RDF/XML parserShow source
load_rdf/2Parse an XML file holding an RDF term into a list of RDF triples.Source
load_rdf/3Parse an XML file holding an RDF term into a list of RDF triples.Source
process_rdf/3Process RDF from Input.Source
xml_to_rdf/3Source
rdf_diagram.pl  -- Show graphical representation of a set of triplesShow source
rdf_diagram_from_file/1Show the triples from File in a window.Source
rdf_parser.plShow source
element_to_plrdf/3Rewrite a single XML element.Source
rdf_name_space/1True if URL must be handled as rdf: Determines special handling of rdf:about, rdf:resource, etc.Source
xml_to_plrdf/3Translate an XML (using namespaces) term into an Prolog term representing the RDF data.Source
rdf_triple.pl  -- Create triples from intermediate representationShow source
anon_prefix/1If defined, it is the prefix used to generate a blank node.Source
rdf_end_file/1Cleanup reaching the end of an RDF file.Source
rdf_reset_ids/0Utility predicate to reset the gensym counters for the various generated identifiers.Source
rdf_start_file/2Initialise for the translation of a file.Source
rdf_triples/2Convert an object as parsed by rdf.pl into a list of rdf/3 triples.Source
rdf_triples/3Convert an object as parsed by rdf.pl into a list of rdf/3 triples.Source
rdf_write.pl  -- Write RDF/XML from a list of triplesShow source
rdf_write_xml/2Write an RDF/XML serialization of Triples to Out.Source
readline.pl  -- GNU readline interfaceShow source
readln.pl  -- Read line as list of tokensShow source
readutil.pl  -- Read utilitiesShow source
record.pl  -- Access compound arguments by nameShow source
current_record/2True if Name is the name of a record defined in the module associated with Term and Term is the user-provided record declaration.Source
current_record_predicate/2True if PI is the predicate indicator for an access predicate to Record.Source
record/1Define access predicates for a compound-term.Source
redis.pl  -- Redis clientShow source
redis/1Connect to the default redis server, call redist/3 using Request, disconnect and print the result.Source
redis/2This predicate is overloaded to handle two types of requests.Source
redis/3Execute a redis Command on Connnection.Source
redis_array_dict/3Translate a Redis reply representing hash data into a SWI-Prolog dict.Source
redis_connect/1Connect to a redis server.Source
redis_connect/3Connect to a redis server.Source
redis_current_command/2True when Command has Properties.Source
redis_current_command/3True when Command has Properties.Source
redis_current_subscription/2True when a PUB/SUB subscription with Id is listening on Channels.Source
redis_disconnect/1Disconnect from a redis server.Source
redis_disconnect/2Disconnect from a redis server.Source
redis_get_hash/3Put/get a Redis hash as a Prolog dict.Source
redis_get_list/3Get the content of a Redis list in List.Source
redis_get_list/4Get the content of a Redis list in List.Source
redis_hscan/4Map the Redis SCAN, SSCAN, HSCAN and ZSCAN` commands into a lazy list.Source
redis_property/2True if Property is a property of the Redis server.Source
redis_read/2Write command and read replies from a Redis server.Source
redis_scan/3Map the Redis SCAN, SSCAN, HSCAN and ZSCAN` commands into a lazy list.Source
redis_server/3Register a redis server without connecting to it.Source
redis_set_hash/3Put/get a Redis hash as a Prolog dict.Source
redis_set_list/3Associate a Redis key with a list.Source
redis_sscan/4Map the Redis SCAN, SSCAN, HSCAN and ZSCAN` commands into a lazy list.Source
redis_subscribe/2Add/remove channels from for the subscription.Source
redis_subscribe/4Subscribe to one or more Redis PUB/SUB channels.Source
redis_unsubscribe/2Add/remove channels from for the subscription.Source
redis_write/2Write command and read replies from a Redis server.Source
redis_zscan/4Map the Redis SCAN, SSCAN, HSCAN and ZSCAN` commands into a lazy list.Source
redis_streams.pl  -- Using Redis streamsShow source
rewrite_term.plShow source
rewrite_term/2Invoke the term-rewriting system.Source
rlimit.plShow source
saml.pl  -- SAML AuthenticationShow source
sandbox.pl  -- Sandboxed Prolog codeShow source
settings.pl  -- Setting managementShow source
sgml.pl  -- SGML, XML and HTML parserShow source
destroy_dtds/0Destroy DTDs cached by this thread as they will become unreachable anyway.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
html_write/2Write a term as created by the SGML/XML parser to a stream in SGML or XML format.Source
html_write/3Write a term as created by the SGML/XML parser to a stream in SGML or XML format.Source
sgml_write/2Write a term as created by the SGML/XML parser to a stream in SGML or XML format.Source
sgml_write/3Write a term as created by the SGML/XML parser to a stream in SGML or XML format.Source
xml_write/2Write a term as created by the SGML/XML parser to a stream in SGML or XML format.Source
xml_write/3Write a term as created by the SGML/XML parser to a stream in SGML or XML format.Source
xmlns/2Hook to define human readable abbreviations for XML namespaces.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
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
snowball.pl  -- The Snowball multi-lingual stemmer libraryShow source
snowball/3Apply the Snowball Algorithm on Input and unify the result (an atom) with Stem.Source
snowball_current_algorithm/1True if Algorithm is the official name of an algorithm suported by snowball/3.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_getopt/2Get information about Socket.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.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
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
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
cert_accept_any/5Implementation for the hook `cert_verify_hook(:Hook)` that accepts any certificate.Source
certificate_field/2Retrieve the field matching Field from Certificate.Source
load_certificate/2Loads a certificate from a PEM- or DER-encoded stream, returning a certificate.Source
load_crl/2Loads a CRL from a PEM- or DER-encoded stream, returning a term containing terms hash/1, signature/1, issuer_name/1 and revocations/1, which is a list of revoked/2 terms.Source
load_private_key/3Load a private key PrivateKey from the given stream Stream, using Password to decrypt the key if it is encrypted.Source
load_public_key/2Load a public key PublicKey from the given stream Stream.Source
same_certificate/2True if CertificateA is logically the same as CertificateB, even if they are stored in different blobs.Source
ssl_add_certificate_key/4Add an additional certificate/key pair to SSL0, yielding SSL.Source
ssl_context/3Create an SSL context.Source
ssl_negotiate/5Once a connection is established and a read/write stream pair is available, (PlainRead and PlainWrite), this predicate can be called to negotiate an SSL session over the streams.Source
ssl_peer_certificate/2True if the peer certificate is provided (this is always the case for a client connection) and Certificate unifies with the peer certificate.Source
ssl_peer_certificate_chain/2Certificates is the certificate chain provided by the peer, represented as a list of certificates.Source
ssl_property/2True when Property is a property of SSL.Source
ssl_secure_ciphers/1Ciphers is a secure cipher preference list that can be used in the cipher_list/1 option of ssl_context/3.Source
ssl_session/2Retrieves (debugging) properties from the SSL context associated with Stream.Source
ssl_set_options/3SSL is the same as SSL0, except for the options specified in Options.Source
ssl_upgrade_legacy_options/2Handle deprecated cacert_file(Spec) option and map it to the new cacerts(+List) option.Source
system_root_certificates/1List is a list of trusted root certificates as provided by the OS.Source
verify_certificate/3True if it is possible to build a chain of trust from Certificate to one of the certificates in TrustedCertificates, optionally using the (untrusted) certificates in AuxiliaryCertificates to complete the chain.Source
verify_certificate_issuer/2True if Certificate is a certificate which was issued by the certificate Issuer.Source
write_certificate/3Writes a certificate to the stream Stream.Source
statistics.pl  -- Get information about resource usageShow source
call_time/2Call Goal as call/1, unifying Time with a dict that provides information on the resource usage.Source
call_time/3Call Goal as call/1, unifying Time with a dict that provides information on the resource usage.Source
profile/1Run Goal under the execution profiler.Source
profile/2Run Goal under the execution profiler.Source
profile_data/1Gather all relevant data from profiler.Source
profile_procedure_data/2Collect data for Pred.Source
show_profile/1Display last collected profiling data.Source
statistics/0Print information about resource usage using print_message/2.Source
statistics/1Stats is a dict representing the same information as statistics/0.Source
thread_statistics/2Obtain statistical information about a single thread.Source
time/1Execute Goal, reporting statistics to the user.Source
stomp.pl  -- STOMP client.Show source
streaminfo.plShow source
stream_info/1Print detailed information about a stream or a file-number to the error output.Source
streampool.pl  -- Input multiplexingShow source
close_stream_pool/0Close all streams in the pool.Source
delete_stream_from_pool/1Retract stream from the pool.Source
dispatch_stream_pool/1Wait for input on one or more streams and handle that.Source
stream_pool_main_loop/0Keep handling input from the streams in the pool until they have all died away.Source
strings.pl  -- String utilitiesShow source
dedent_lines/3Remove shared indentation for all lines in a string.Source
indent_lines/3Add Prefix to the beginning of lines in In.Source
indent_lines/4Similar to indent_lines/3, but only adds Prefix to lines for which call(Filter, Line) succeeds.Source
interpolate_string/4Establish a string from a template by replacing patterns.Source
string/4Implements the quasi quotation syntax string.Source
string_lines/2True when String represents Lines.Source
syslog.pl  -- Unix syslog interfaceShow source
system.pl  -- System utilitiesShow source
lock_predicate/1Transform a predicate into a system predicate.Source
system_mode/1Switch the system into system or user mode.Source
system_module/0Any predicate defined after this declaraction uptil the end of the file will become a system predicate.Source
unlock_predicate/1Transform a system predicate into a normal system predicate.Source
table.plShow source
table_util.pl  -- Tabular file handling utilitiesShow source
sort_table/2Read the records from the given table, sort them according to the ordering information on the key field and write the result to the given filename.Source
verify_table_order/1If Table is a handle to a defined table and the table contains a key-fields, check that the fields in the table are really sorted according to the order defined in the table.Source
tables.pl  -- XSB interface to tablesShow source
term_to_json.plShow source
term_to_json/2Convert any general Prolog term into a JSON term.Source
term_to_json/3Convert any general Prolog term into a JSON term.Source
terms.pl  -- Term manipulationShow source
mapargs/3Term1 and Term2 have the same functor (name/arity) and for each matching pair of arguments call(Goal, A1, A2) is true.Source
mapsubterms/3Recursively map sub terms of Term1 into subterms of Term2 for every pair for which call(Goal, ST1, ST2) succeeds.Source
same_functor/2True when Term1 and Term2 are terms that have the same functor (Name/Arity).Source
same_functor/3True when Term1 and Term2 are terms that have the same functor (Name/Arity).Source
same_functor/4True when Term1 and Term2 are terms that have the same functor (Name/Arity).Source
subsumes/2True if Generic is unified to Specific without changing Specific.Source
subsumes_chk/2True if Generic can be made equivalent to Specific without changing Specific.Source
term_factorized/3Is 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.Source
term_size/2True if Size is the size in cells occupied by Term on the global (term) stack.Source
term_subsumer/3General is the most specific term that is a generalisation of Special1 and Special2.Source
variant/2Same as SWI-Prolog Term1 =@= Term2.Source
test_cover.pl  -- Clause coverage analysisShow source
test_wizard.pl  -- Test Generation WizardShow source
make_test/3Generate a test from a query.Source
make_tests/3Create tests from queries stored in File and write the tests for Module to the stream Out.Source
thread.pl  -- High level thread primitivesShow source
call_in_thread/2Run Goal as an interrupt in the context of Thread.Source
concurrent/3Run Goals in parallel using N threads.Source
concurrent_and/2Concurrent version of (Generator,Test).Source
concurrent_and/3Concurrent version of (Generator,Test).Source
concurrent_forall/2True when Action is true for all solutions of Generate.Source
concurrent_forall/3True when Action is true for all solutions of Generate.Source
concurrent_maplist/2Concurrent version of maplist/2.Source
concurrent_maplist/3Concurrent version of maplist/2.Source
concurrent_maplist/4Concurrent version of maplist/2.Source
first_solution/3Try alternative solvers concurrently, returning the first answer.Source
thread_pool.pl  -- Resource bounded thread managementShow source
threadutil.pl  -- Interactive thread utilitiesShow source
attach_console/0Create a new console and make the standard Prolog streams point to it.Source
attach_console/1Create a new console and make the standard Prolog streams point to it.Source
interactor/0Run a Prolog toplevel in another thread with a new console window.Source
interactor/1Run a Prolog toplevel in another thread with a new console window.Source
join_threads/0Join all terminated threads.Source
tbacktrace/1Print a backtrace for Thread to the stream user_error of the calling thread.Source
tbacktrace/2Print a backtrace for Thread to the stream user_error of the calling thread.Source
tdebug/0Enable debug-mode, trapping the graphical debugger on reaching spy-points or errors.Source
tdebug/1Enable debug-mode, trapping the graphical debugger on reaching spy-points or errors.Source
thread_has_console/0True when the calling thread has an attached console.Source
thread_run_interactor/0Attach a console and run a Prolog toplevel in the current thread.Source
threads/0List currently known threads with their status.Source
tnodebug/0Disable debug-mode in all threads or the specified Thread.Source
tnodebug/1Disable debug-mode in all threads or the specified Thread.Source
tprofile/1Profile the operation of Thread until the user hits a key.Source
tspy/1Trap the graphical debugger on reaching Spec in the specified or any thread.Source
tspy/2Trap the graphical debugger on reaching Spec in the specified or any thread.Source
xterm_args/1Multifile and dynamic hook that provides (additional) arguments for the xterm(1) process opened for additional thread consoles.Source
time.pl  -- Time and alarm libraryShow source
tty.pl  -- Terminal operationsShow source
udp_broadcast.pl  -- A UDP broadcast proxyShow source
udp_broadcast_close/1Close a UDP broadcast scope.Source
udp_broadcast_initialize/2Initialized UDP broadcast bridge.Source
udp_peer/2Manage and query the set of known peers for a unicast network.Source
udp_peer_add/2Manage and query the set of known peers for a unicast network.Source
udp_peer_del/2Manage and query the set of known peers for a unicast network.Source
udp_term_string_hook/3Hook for serializing the message Term.Source
udp_unicast_join_hook/3This multifile hook is called if an UDP package is received on the port of the unicast network identified by Scope.Source
ugraphs.pl  -- Graph manipulation libraryShow source
uid.pl  -- User and group management on Unix systemsShow 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
utf8_codes/3DCG translating between a Unicode code-list and its UTF-8 encoded byte-string.Source
uuid.pl  -- Universally Unique Identifier (UUID) LibraryShow source
varnumbers.pl  -- Utilities for numbered termsShow source
vm.pl  -- SWI-Prolog Virtual Machine utilitiesShow source
wfs.pl  -- Well Founded Semantics interfaceShow source
when.pl  -- Conditional coroutiningShow source
when/2Execute Goal when Condition is satisfied.Source
win_menu.pl  -- Console window menuShow source
writef.pl  -- Old-style formatted writeShow source
www_browser.pl  -- Open a URL in the users browserShow source
expand_url_path/2Expand URL specifications similar to absolute_file_name/3.Source
known_browser/2True if browser FileBaseName has a remote protocol compatible to Compatible.Source
www_open_url/1Open URL in running version of the users' browser or start a new browser.Source
xmldsig.pl  -- XML Digital signatureShow source
xmlenc.pl  -- XML encryption libraryShow source
decrypt_xml/4Source
load_certificate_from_base64_string/2Loads a certificate from a string, adding newlines and header where appropriate so that OpenSSL 1.0.1+ will be able to parse it.Source
xpath.pl  -- Select nodes in an XML DOMShow source
xpath/3Match an element in a DOM structure.Source
xpath_chk/3Semi-deterministic version of xpath/3.Source
xsdp_types.pl  -- XML-Schema primitive typesShow source
yall.pl  -- Lambda expressionsShow source
//2Shorthand for Free/[]>>Lambda.Source
//3Shorthand for Free/[]>>Lambda.Source
//4Shorthand for Free/[]>>Lambda.Source
//5Shorthand for Free/[]>>Lambda.Source
//6Shorthand for Free/[]>>Lambda.Source
//7Shorthand for Free/[]>>Lambda.Source
//8Shorthand for Free/[]>>Lambda.Source
//9Shorthand for Free/[]>>Lambda.Source
>>/2Calls a copy of Lambda.Source
>>/3Calls a copy of Lambda.Source
>>/4Calls a copy of Lambda.Source
>>/5Calls a copy of Lambda.Source
>>/6Calls a copy of Lambda.Source
>>/7Calls a copy of Lambda.Source
>>/8Calls a copy of Lambda.Source
>>/9Calls a copy of Lambda.Source
is_lambda/1True if Term is a valid Lambda expression.Source
lambda_calls/2Goal is the goal called if call/N is applied to LambdaExpression, where ExtraArgs are the additional arguments to call/N.Source
lambda_calls/3Goal is the goal called if call/N is applied to LambdaExpression, where ExtraArgs are the additional arguments to call/N.Source
yaml.pl  -- Process YAML dataShow source
yaml_read/2Parse Input to a YALM DOM.Source
yaml_write/2Emit a YAML DOM object as a serialized YAML document to the stream Out.Source
yaml_write/3Emit a YAML DOM object as a serialized YAML document to the stream Out.Source
zip.pl  -- Access resource ZIP archivesShow source
zlib.pl  -- Zlib wrapper for SWI-PrologShow source