SWI-Prolog 9.3.29
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library

Prolog files

aggregate.pl  -- Aggregation operators on backtrackable predicatesShow source
ansi_term.pl  -- Print decorated text to ANSI consolesShow source
ansi_format/3Format text with ANSI attributes.Source
ansi_get_color/2Obtain the RGB color for an ANSI color parameter.Source
ansi_hyperlink/2Create a hyperlink for a terminal emulator.Source
ansi_hyperlink/3Create a hyperlink for a terminal emulator.Source
tty_url_hook/2Hook for location_url/2.Source
console_color/2Hook that allows for mapping abstract terms to concrete ANSI attributes.
message_line_element/2Hook implementation that deals with ansi(+Attr, +Fmt, +Args) in message specifications.Source
apply.plShow 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
arithmetic.pl  -- Extensible arithmeticShow source
assoc.plShow 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
base32.pl  -- Base32 encoding and decodingShow source
base64.pl  -- Base64 encoding and decodingShow source
broadcast.pl  -- Event serviceShow source
charsio.pl  -- I/O on Lists of Character CodesShow source
check.pl  -- Consistency checkingShow source
codesio.pl  -- I/O on Lists of Character CodesShow source
coinduction.pl  -- Co-Logic ProgrammingShow source
csv.plShow 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
date.pl  -- Process dates and timesShow source
debug.pl  -- Print debug messages and test assertionsShow source
dialect.plShow 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
dif.pl  -- The dif/2 constraintShow source
edinburgh.plShow 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.plShow 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.plShow source
exceptions.plShow source
catch/4As catch/3, only catching exceptions for which exception(ErrorType,Ball) is true.Source
error_term/2Describe the formal part of error(Formal,ImplDefined) exceptions.Source
exception/2If Ball is unbound, adds a delayed goal that tests the error belongs to Type when Ball is instantiated (by catch/3).Source
exception_term/2Describe exceptions that are not error(Formal, _) terms.Source
exception_type/2Declare all exceptions subsumed by Term to be an exception of Type.Source
gensym.plShow source
gensym/2Generate <Base>1, <Base>2, etc atoms on each subsequent call.Source
reset_gensym/0Reset gensym for all registered keys.Source
reset_gensym/1Restart generation of identifiers from Base at <Base>1.Source
git.pl  -- Run GIT commandsShow source
heaps.pl  -- heaps/priority queuesShow source
help.plShow source
apropos/1Print objects from the manual whose name or summary match with Query.Source
help/0Show help for What.Source
help/1Show help for What.Source
help_text/2When Predicate is a term of the form Name/Arity for which documentation exists, HelpText is the documentation in textual format (parsed from the HTML help).Source
show_html_hook/1Hook called to display the extracted HTML document.Source
increval.pl  -- Incremental dynamic predicate modificationShow source
intercept.pl  -- Intercept and signal interfaceShow source
iostream.pl  -- Utilities to deal with streamsShow source
close_any/1Execute the Close closure returned by open_any/5.Source
open_any/5Establish a stream from Specification that should be closed using Close, which can either be called or passed to close_any/1.Source
lazy_lists.pl  -- Lazy list handlingShow source
listing.pl  -- List programs and pretty print clausesShow source
lists.plShow 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
subseq/3Is true when SubList contains a subset of the elements of List in the same order and Complement contains all elements of List not in SubList, also in the order they appear in List.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
macros.pl  -- Macro expansionShow 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
make_reload_file/1Reload file into the proper module.Source
modules.pl  -- Module utility predicatesShow source
nb_set.pl  -- Non-backtrackable setsShow source
occurs.pl  -- Finding and counting sub-termsShow source
operators.pl  -- Manage operatorsShow source
option.pl  -- Option list processingShow source
optparse.plShow source
opt_arguments/3Extract commandline options according to a specification.Source
opt_help/2True when Help is a help string synthesized from OptsSpec.Source
opt_parse/4Equivalent to opt_parse(OptsSpec, ApplArgs, Opts, PositionalArgs, []).Source
opt_parse/5Parse the arguments Args (as list of atoms) according to OptsSpec.Source
parse_type/3Hook to parse option text Codes to an object of type Type.Source
ordsets.pl  -- Ordered set manipulationShow source
pairs.pl  -- Operations on key-value listsShow source
persistency.pl  -- Provide persistent dynamic predicatesShow source
pio.plShow source
pprint.pl  -- Pretty Print Prolog termsShow source
predicate_options.pl  -- Access and analyse predicate optionsShow source
prolog_autoload.plShow source
autoload_all/0Force all necessary autoloading to be done now.Source
autoload_all/1Force all necessary autoloading to be done now.Source
prolog_breakpoints.pl  -- Manage Prolog break-pointsShow source
prolog_clause.plShow source
prolog_code.plShow 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.plShow source
prolog_program_clause/2True when ClauseRef is a reference for clause in the program.Source
prolog_walk_code/1Walk over all loaded (user) Prolog code.Source
subterm_pos/5True when SubTerm is a sub term of Term, compared using Cmp, TermPosition describes the term layout of Term and SubTermPos describes the term layout of SubTerm.Source
prolog_colour.pl  -- Prolog syntax colouring support.Show source
prolog_config.pl  -- Provide configuration informationShow source
prolog_coverage.plShow source
cov_load_data/2Reload coverage data from File.Source
cov_property/1True when coverage analysis satisfies Property.Source
cov_reset/0Discard all collected coverage data.Source
cov_save_data/2Save the coverage information to File.Source
coverage/1As call(Goal), collecting coverage information while Goal is running.Source
coverage/2Collect and optionally report coverage by Goal.Source
report_hook/2This hook is called after the data collection.Source
show_coverage/1Show collected coverage data.Source
prolog_debug.plShow source
debug_control_hook/1Allow user-hooks in the Prolog debugger interaction.
debugging/0Report current status of the debugger.Source
debugging_hook/1Multifile hook that is called as forall(debugging_hook(DebugMode), true) and that may be used to extend the information printed from other debugging libraries.Source
exception_hook/5Trap exceptions and consider whether or not to start the tracer.Source
nospy/1Set/clear spy-points.Source
nospyall/0Set/clear spy-points.Source
notrap/1Install a trap on error(Formal, Context) exceptions that unify.Source
spy/1Set/clear spy-points.Source
trap/1Install a trap on error(Formal, Context) exceptions that unify.Source
trap_alias/2Define short hands for commonly used exceptions.Source
prolog_format.pl  -- Analyse format specificationsShow source
prolog_history.pl  -- Per-directory persistent commandline historyShow source
prolog_metainference.pl  -- Infer meta-predicate propertiesShow 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_versions.pl  -- Demand specific (Prolog) versionsShow source
prolog_xref.pl  -- Prolog cross-referencer data collectionShow source
pure_input.pl  -- Pure Input from files and streamsShow source
qsave.plShow source
quasi_quotations.pl  -- Define Quasi Quotation syntaxShow source
quintus.plShow source
abs/2Unify `Absolute' with the absolute value of `Number'.Source
acos/2Math library predicates.Source
asin/2Math library predicates.Source
atan/2Math library predicates.Source
atan2/3Math library predicates.Source
atom_char/2Same as ISO char_code/2.Source
ceiling/2Math library predicates.Source
compile/1Compile files.Source
cos/2Math library predicates.Source
current_stream/3SICStus/Quintus and backward compatible predicate.Source
date/1Get current date as date(Y,M,D).Source
floor/2Math library predicates.Source
genarg/3Generalised version of ISO arg/3.Source
log/2Math library predicates.Source
log10/2Math library predicates.Source
midstring/3Too difficult to explain.Source
midstring/4Too difficult to explain.Source
midstring/5Too difficult to explain.Source
midstring/6Too difficult to explain.Source
no_style_check/1Same as SWI-Prolog style_check(-Style).Source
on_exception/3Source
otherwise/0For (A -> B ; otherwise -> C).Source
pow/3Math library predicates.Source
prolog_flag/2Same as ISO current_prolog_flag/2.Source
raise_exception/1Quintus compatible exception handling.Source
round/2Math library predicates.Source
sign/2Math library predicates.Source
simple/1Term is atomic or a variable.Source
sin/2Math library predicates.Source
skip_line/0Skip the rest of the current line (on Stream).Source
skip_line/1Skip the rest of the current line (on Stream).Source
sqrt/2Math library predicates.Source
stream_position/3True when Old is the current position in Stream and the stream has been repositioned to New.Source
tan/2Math library predicates.Source
unix/1This predicate provides a partial emulation of the corresponding Quintus predicate.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
rwlocks.pl  -- Read/write locksShow source
sandbox.plShow source
settings.plShow source
convert_setting_text/3Converts from textual form to Prolog Value.Source
current_setting/1True if Setting is a currently defined setting.Source
env/2Evaluate environment variables on behalf of arithmetic expressions.Source
env/3Evaluate environment variables on behalf of arithmetic expressions.Source
list_settings/0List settings to current_output.Source
list_settings/1List settings to current_output.Source
load_settings/1Load local settings from File.Source
load_settings/2Load local settings from File.Source
restore_setting/1Restore the value of setting Name to its default.Source
save_settings/0Save modified settings to File.Source
save_settings/1Save modified settings to File.Source
set_setting/2Change a setting.Source
set_setting_default/2Change the default for a setting.Source
setting/2True when Name is a currently defined setting with Value.Source
setting/4Define a setting.Source
setting_property/2Query currently defined settings.Source
shell.pl  -- Elementary shell commandsShow source
shlib.pl  -- Utility library for loading foreign objects (DLLs, shared objects)Show source
solution_sequences.plShow 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
streams.pl  -- Manage Prolog streamsShow source
with_output_to/3Run Goal and once/1 while capturing all output to all streams (current_output, user_output and user_error) in the string Output.Source
strings.pl  -- String utilitiesShow source
system.plShow 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
tables.pl  -- XSB interface to tablesShow source
terms.pl  -- Term manipulationShow source
thread.plShow 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
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
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
with_stopped_threads/2Stop all threads except the caller while running once(Goal).Source
ugraphs.pl  -- Graph manipulation libraryShow source
url.pl  -- Analysing and constructing URLShow source
utf8.pl  -- UTF-8 encoding/decoding on lists of character codes.Show source
varnumbers.pl  -- Utilities for numbered termsShow source
wfs.pl  -- Well Founded Semantics interfaceShow source
when.pl  -- Conditional coroutiningShow source
writef.plShow source
swritef/2Use writef/1 or writef/2 and write the result to a string.Source
swritef/3Use writef/1 or writef/2 and write the result to a string.Source
writef/1Formatted write to the current_output.Source
writef/2Formatted write to the current_output.Source
www_browser.pl  -- Open a URL in the users browserShow source
yall.pl  -- Lambda expressionsShow source
zip.pl  -- Access resource ZIP archivesShow source