aggregate.pl -- Aggregation operators on backtrackable predicates |
| aggregate/3 | Aggregate bindings in Goal according to Template. |  |
| aggregate/4 | Aggregate bindings in Goal according to Template. |  |
| aggregate_all/3 | Aggregate bindings in Goal according to Template. |  |
| aggregate_all/4 | Aggregate bindings in Goal according to Template. |  |
| foldall/4 | Use Folder to fold V0 to V using all answers of Goal. |  |
| foreach/2 | True when the conjunction of instances of Goal created from solutions for Generator is true. |  |
| free_variables/4 | Find free variables in bagof/setof template. |  |
| safe_meta/2 | Declare the aggregate meta-calls safe. |  |
ansi_term.pl -- Print decorated text to ANSI consoles |
| ansi_format/3 | Format text with ANSI attributes. |  |
| ansi_format/4 | Format text with ANSI attributes. |  |
| ansi_get_color/2 | Obtain the RGB color for an ANSI color parameter. |  |
| ansi_hyperlink/2 | Create a hyperlink for a terminal emulator. |  |
| ansi_hyperlink/3 | Create a hyperlink for a terminal emulator. |  |
| tty_url_hook/2 | Hook for location_url/2. |  |
| console_color/2 | Hook that allows for mapping abstract terms to concrete ANSI attributes. | |
| message_line_element/2 | Hook implementation that deals with ansi(+Attr, +Fmt, +Args) in message specifications. |  |
apply.pl -- Apply predicates on a list |
apply_macros.pl -- Goal expansion rules to avoid meta-calling |
| apply_macros_sentinel/0 | Used to detect that library(apply_macros) is loaded into the current context explicitly. |  |
| expand_phrase/2 | Provide goal-expansion for PhraseGoal. |  |
| expand_phrase/4 | Provide goal-expansion for PhraseGoal. |  |
arithmetic.pl |
| arithmetic_expression_value/2 | True when Result unifies with the arithmetic result of evaluating Expression. |  |
| arithmetic_function/1 | Declare a predicate as an arithmetic function. |  |
assoc.pl -- Binary associations |
atom.pl -- Operations on atoms |
backcomp.pl -- Backward compatibility |
base32.pl -- Base32 encoding and decoding |
base64.pl -- Base64 encoding and decoding |
broadcast.pl -- Event service |
charsio.pl -- I/O on Lists of Character Codes |
check.pl -- Consistency checking |
check_installation.pl -- Check installation issues and features |
codesio.pl -- I/O on Lists of Character Codes |
coinduction.pl -- Co-Logic Programming |
console_input.pl |
| complete_input/4 | Compute auto completions for the input line BeforeCursor+AfterCursor. |  |
csv.pl -- Process CSV (Comma-Separated Values) data |
ctypes.pl -- Character code classification |
date.pl -- Process dates and times |
| date_time_value/3 | Extract values from a date-time structure. |  |
| day_of_the_week/2 | Computes the day of the week for a given date. |  |
| day_of_the_year/2 | Computes the day of the year for a given date. |  |
| parse_time/2 | Stamp is a timestamp created from parsing Text using the representation Format. |  |
| parse_time/3 | Stamp is a timestamp created from parsing Text using the representation Format. |  |
debug.pl -- Print debug messages and test assertions |
dialect.pl -- Support multiple Prolog dialects |
| expects_dialect/1 | Tell Prolog all subsequent code to the end of the file or the next :- expects_dialect/1 directive is written for the indicated Dialect. |  |
| source_exports/2 | True if Source exports Export. |  |
dicts.pl -- Dict utilities |
dif.pl -- The dif/2 constraint |
| dif/2 | Constraint that expresses that Term1 and Term2 never become identical (==/2). |  |
edinburgh.pl -- Some traditional Edinburgh predicates |
| debug/0 | Switch on/off debug mode. |  |
| display/1 | Write a term, ignoring operators and special syntax constructs such as brace terms ({a}) and lists ([a,b,c]). |  |
| display/2 | Write a term, ignoring operators and special syntax constructs such as brace terms ({a}) and lists ([a,b,c]). |  |
| fileerrors/2 | Query and change the fileerrors flag. |  |
| nodebug/0 | Switch on/off debug mode. |  |
| reconsult/1 | Load source file(s), wiping the old content first. |  |
| unknown/2 | Edinburgh Prolog predicate for dealing dealing with undefined procedures. |  |
edit.pl -- Editor interface |
| edit/0 | Edit associated or script file. |  |
| edit/1 | Edit indicated object. |  |
| edit_command/2 | This predicate should specify the shell-command called to invoke the user's editor. |  |
| locate/2 | Locate object from the specified location. |  |
| locate/3 | |  |
| select_location/3 | |  |
error.pl |
| current_encoding/1 | True if Name is the name of a supported encoding. |  |
| current_type/3 | True when Type is a currently defined type and Var satisfies Type of the body term Body succeeds. |  |
| domain_error/2 | The argument is of the proper type, but has a value that is outside the supported values. |  |
| existence_error/2 | Culprit is of the correct type and correct domain, but there is no existing (external) resource of type ObjectType that is represented by it. |  |
| existence_error/3 | Culprit is of the correct type and correct domain, but there is no existing (external) resource of type ObjectType that is represented by it in the provided set. |  |
| has_type/2 | True if Term satisfies Type. |  |
| instantiation_error/1 | An argument is under-instantiated. |  |
| is_of_type/2 | True if Term satisfies Type. |  |
| must_be/2 | True if Term satisfies the type constraints for Type. |  |
| permission_error/3 | It is not allowed to perform Operation on (whatever is represented by) Culprit that is of the given PermissionType (in fact, the ISO Standard is confusing and vague about these terms' meaning). |  |
| representation_error/1 | A representation error indicates a limitation of the implementation. |  |
| resource_error/1 | A goal cannot be completed due to lack of resources. |  |
| syntax_error/1 | A text has invalid syntax. |  |
| type_error/2 | Tell the user that Culprit is not of the expected ValidType. |  |
| uninstantiation_error/1 | An argument is over-instantiated. |  |
exceptions.pl -- Exception classification |
explain.pl -- Describe Prolog Terms |
fastrw.pl -- Fast reading and writing of terms |
files.pl |
gensym.pl -- Generate unique symbols |
git.pl -- Run GIT commands |
hashtable.pl -- Hash tables |
| ht_del/3 | Delete Key-Value from HT. |  |
| ht_gen/3 | True when Key-Value is in HT. |  |
| ht_get/3 | True when Key is in HT and associated with Value. |  |
| ht_is_hashtable/1 | True when HT is a hash table. |  |
| ht_keys/2 | True when Keys is an ordered set of all keys in HT. |  |
| ht_new/1 | Create a new hash table. |  |
| ht_pairs/2 | True when Pairs and HT represent the same association. |  |
| ht_put/3 | Add a Key-Value to HT. |  |
| ht_put/5 | Add Key-Value to HT. |  |
| ht_put_new/3 | As ht_put/3, but fails if Key is already in HT instead of updating the associated value. |  |
| ht_size/2 | True when Size is the number of key-value pairs in HT. |  |
| ht_update/4 | True when HT holds Key-Old before and Key-New after this call. |  |
heaps.pl -- heaps/priority queues |
help.pl -- Text based manual |
hotfix.pl -- Load hotfixes into executables |
increval.pl -- Incremental dynamic predicate modification |
| incr_directly_depends/2 | True if Goal1 depends on Goal2 in the IDG. |  |
| incr_invalid_subgoals/1 | List is a sorted list (set) of the incremental subgoals that are currently invalid. |  |
| incr_invalidate_call/1 | This is the XSB name, but the manual says incr_invalidate_calls/1 and the comment with the code suggests this is misnamed. |  |
| incr_invalidate_calls/1 | Invalidate all tables for subgoals of Goal as well as tables that are affected by these. |  |
| incr_is_invalid/1 | True when Subgoal's table is marked as invalid. |  |
| incr_propagate_calls/1 | Activate the monotonic answer propagation similarly to when a new fact is asserted for a monotonic dynamic predicate. |  |
| incr_table_update/0 | Updated all invalid tables. |  |
| incr_trans_depends/2 | True for each pair in the transitive closure of incr_directly_depends(G1, G2). |  |
| is_incremental_subgoal/1 | This predicate non-deterministically unifies Subgoal with incrementally tabled subgoals that are currently table entries. |  |
intercept.pl -- Intercept and signal interface |
| intercept/3 | Run Goal as call/1. |  |
| intercept/4 | Similar to intercept/3, but the copy of Handler is called as call(Copy,Arg), which allows passing large context arguments or arguments subject to unification or destructive assignment. |  |
| intercept_all/4 | True when List contains all instances of Template that have been sent using send_signal/1 where the argument unifies with Ball. |  |
| nb_intercept_all/4 | As intercept_all/4, but backtracing inside Goal does not reset List. |  |
| send_signal/1 | If this predicate is called from a sub-goal of intercept/3, execute the associated Handler of the intercept/3 environment. |  |
| send_silent_signal/1 | As send_signal/1, but succeed silently if there is no matching intercept environment. |  |
iostream.pl -- Utilities to deal with streams |
lazy_lists.pl -- Lazy list handling |
listing.pl -- List programs and pretty print clauses |
| listing/0 | Lists all predicates defined in the calling module. |  |
| listing/1 | List matching clauses. |  |
| listing/2 | List matching clauses. |  |
| portray_clause/1 | Portray `Clause' on the current output stream. |  |
| portray_clause/2 | Portray `Clause' on the current output stream. |  |
| portray_clause/3 | Portray `Clause' on the current output stream. |  |
lists.pl -- List Manipulation |
| append/2 | Concatenate a list of lists. |  |
| append/3 | List1AndList2 is the concatenation of List1 and List2. |  |
| clumped/2 | Pairs is a list of Item-Count pairs that represents the run length encoding of Items. |  |
| delete/3 | Delete matching elements from a list. |  |
| flatten/2 | Is true if FlatList is a non-nested version of NestedList. |  |
| intersection/3 | True if Set3 unifies with the intersection of Set1 and Set2. |  |
| is_set/1 | True if Set is a proper list without duplicates. |  |
| last/2 | Succeeds when Last is the last element of List. |  |
| list_to_set/2 | True when Set has the same elements as List in the same order. |  |
| max_list/2 | True if Max is the largest number in List. |  |
| max_member/2 | True when Max is the largest member in the standard order of terms. |  |
| max_member/3 | True when Max is the largest member according to Pred, which must be a 2-argument callable that behaves like (@=<)/2. |  |
| member/2 | True if Elem is a member of List. |  |
| min_list/2 | True if Min is the smallest number in List. |  |
| min_member/2 | True when Min is the smallest member in the standard order of terms. |  |
| min_member/3 | True when Min is the smallest member according to Pred, which must be a 2-argument callable that behaves like (@=<)/2. |  |
| nextto/3 | True if Y directly follows X in List. |  |
| nth0/3 | True when Elem is the Index'th element of List. |  |
| nth0/4 | Select/insert element at index. |  |
| nth1/3 | Is true when Elem is the Index'th element of List. |  |
| nth1/4 | As nth0/4, but counting starts at 1. |  |
| numlist/3 | List is a list [Low, Low+1, ... High]. |  |
| permutation/2 | True when Xs is a permutation of Ys. |  |
| prefix/2 | True iff Part is a leading substring of Whole. |  |
| proper_length/2 | True when Length is the number of elements in the proper list List. |  |
| reverse/2 | Is true when the elements of List2 are in reverse order compared to List1. |  |
| same_length/2 | Is true when List1 and List2 are lists with the same number of elements. |  |
| select/3 | Is true when List1, with Elem removed, results in List2. |  |
| select/4 | Select from two lists at the same position. |  |
| selectchk/3 | Semi-deterministic removal of first element in List that unifies with Elem. |  |
| selectchk/4 | Semi-deterministic version of select/4. |  |
| subseq/3 | Is 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. |  |
| subset/2 | True if all elements of SubSet belong to Set as well. |  |
| subtract/3 | Delete all elements in Delete from Set. |  |
| sum_list/2 | Sum is the result of adding all numbers in List. |  |
| union/3 | True if Set3 unifies with the union of the lists Set1 and Set2. |  |
macros.pl -- Macro expansion |
main.pl -- Provide entry point for scripts |
make.pl -- Reload modified source files |
| make/0 | Reload all source files that have been changed since they were loaded. |  |
| make_reload_file/1 | Reload file into the proper module. |  |
modules.pl -- Module utility predicates |
nb_rbtrees.pl -- Non-backtrackable operations on red black trees |
nb_set.pl -- Non-backtrackable sets |
| add_nb_set/2 | Insert Key into the set. |  |
| add_nb_set/3 | Insert Key into the set. |  |
| empty_nb_set/1 | Create an empty non-backtrackable set. |  |
| gen_nb_set/2 | Enumerate the members of a set in the standard order of terms. |  |
| nb_set_to_list/2 | Get the elements of a an nb_set. |  |
| size_nb_set/2 | Unify Size with the number of elements in the set. |  |
obfuscate.pl -- Code obfuscating |
occurs.pl -- Finding and counting sub-terms |
operators.pl -- Manage operators |
option.pl -- Option list processing |
optparse.pl -- command line parsing |
ordsets.pl -- Ordered set manipulation |
| is_ordset/1 | True if Term is an ordered set. |  |
| list_to_ord_set/2 | Transform a list into an ordered set. |  |
| ord_add_element/3 | Insert an element into the set. |  |
| ord_del_element/3 | Delete an element from an ordered set. |  |
| ord_disjoint/2 | True if Set1 and Set2 have no common elements. |  |
| ord_empty/1 | True when List is the empty ordered set. |  |
| ord_intersect/2 | True if both ordered sets have a non-empty intersection. |  |
| ord_intersect/3 | Intersection holds the common elements of Set1 and Set2. |  |
| ord_intersection/2 | Intersection of a powerset. |  |
| ord_intersection/3 | Intersection holds the common elements of Set1 and Set2. |  |
| ord_intersection/4 | Intersection and difference between two ordered sets. |  |
| ord_memberchk/2 | True if Element is a member of OrdSet, compared using ==. |  |
| ord_selectchk/3 | Selectchk/3, specialised for ordered sets. |  |
| ord_seteq/2 | True if Set1 and Set2 have the same elements. |  |
| ord_subset/2 | Is true if all elements of Sub are in Super. |  |
| ord_subtract/3 | Diff is the set holding all elements of InOSet that are not in NotInOSet. |  |
| ord_symdiff/3 | Is true when Difference is the symmetric difference of Set1 and Set2. |  |
| ord_union/2 | True if Union is the union of all elements in the superset SetOfSets. |  |
| ord_union/3 | Union is the union of Set1 and Set2. |  |
| ord_union/4 | True iff ord_union(Set1, Set2, Union) and ord_subtract(Set2, Set1, New). |  |
oset.pl -- Ordered set manipulation |
pairs.pl -- Operations on key-value lists |
persistency.pl -- Provide persistent dynamic predicates |
pio.pl -- Pure I/O |
portray_text.pl -- Portray text |
pprint.pl -- Pretty Print Prolog terms |
predicate_options.pl |
| assert_predicate_options/4 | As predicate_options(:PI, +Arg, +Options). |  |
| check_predicate_option/3 | Verify predicate options at runtime. |  |
| check_predicate_options/0 | Analyse loaded program for erroneous options. |  |
| check_predicate_options/1 | Verify calls to predicates that have options in all clauses of the predicate indicated by PredicateIndicator. |  |
| current_option_arg/2 | True when Arg of PI processes predicate options. |  |
| current_predicate_option/3 | True when Arg of PI processes Option. |  |
| current_predicate_options/3 | True when Options is the current active option declaration for PI on Arg. |  |
| derive_predicate_options/0 | Derive new predicate option declarations. |  |
| derived_predicate_options/1 | Derive predicate option declarations for a module. |  |
| derived_predicate_options/3 | Derive option arguments using static analysis. |  |
| predicate_options/3 | Declare that the predicate PI processes options on Arg. |  |
| retractall_predicate_options/0 | Remove all dynamically (derived) predicate options. |  |
prolog_autoload.pl -- Autoload all dependencies |
prolog_breakpoints.pl -- Manage Prolog break-points |
prolog_clause.pl -- Get detailed source-information about a clause |
| clause_info/4 | Fetches source information for the given clause. |  |
| clause_info/5 | Fetches source information for the given clause. |  |
| clause_name/2 | Provide a suitable description of the indicated clause. |  |
| initialization_layout/4 | Find term-layout of :- initialization directives. |  |
| make_varnames/5 | Create a Term varnames(...) where each argument contains the name of the variable at that offset. |  |
| open_source/2 | Hook into clause_info/5 that opens the stream holding the source for a specific clause. |  |
| predicate_name/2 | Describe a predicate as [Module:]Name/Arity. |  |
| unify_goal/5 | This hook is called to fix up source code manipulations that result from goal expansions. |  |
| unify_term/2 | Unify 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. |  |
prolog_code.pl -- Utilities for reasoning about code |
prolog_codewalk.pl -- Prolog code walker |
prolog_colour.pl -- Prolog syntax colouring support. |
| prolog_colourise_query/3 | Colourise a query, to be executed in the context of SourceId. |  |
| prolog_colourise_stream/3 | Determine colour fragments for the data on Stream. |  |
| prolog_colourise_stream/4 | Determine colour fragments for the data on Stream. |  |
| prolog_colourise_term/4 | Colourise the next term on Stream. |  |
| syntax_colour/2 | True when a range classified Class must be coloured using Attributes. |  |
| vararg_goal_classification/3 | Multifile hookable classification for vararg predicates. |  |
prolog_config.pl -- Provide configuration information |
| prolog_config/2 | Get information on the configuration of the current Prolog system. |  |
| prolog_dump_runtime_variables/0 | Dump the current configuration in shell format. |  |
prolog_coverage.pl -- Coverage analysis tool |
| cov_load_data/2 | Reload coverage data from File. |  |
| cov_property/1 | True when coverage analysis satisfies Property. |  |
| cov_reset/0 | Discard all collected coverage data. |  |
| cov_save_data/2 | Save the coverage information to File. |  |
| coverage/1 | As call(Goal), collecting coverage information while Goal is running. |  |
| coverage/2 | Collect and optionally report coverage by Goal. |  |
| report_hook/2 | This hook is called after the data collection. |  |
| show_coverage/1 | Show collected coverage data. |  |
prolog_debug.pl -- User level debugging tools |
prolog_deps.pl -- Compute file dependencies |
prolog_evaluable.pl -- Inspect properties of evaluable functions |
prolog_format.pl -- Analyse format specifications |
prolog_history.pl -- Per-directory persistent commandline history |
prolog_jiti.pl -- Just In Time Indexing (JITI) utilities |
prolog_locale.pl -- Tweak the locale for Prolog development |
prolog_metainference.pl -- Infer meta-predicate properties |
prolog_pack.pl -- A package manager for Prolog |
prolog_profile.pl -- Execution profiler |
prolog_qlfmake.pl -- Compile the library to QLF format |
| qlf_make/0 | Compile all files from the system libraries to .QLF format. |  |
| qlf_make/1 | Ensure a .QLF version of Spec. |  |
prolog_source.pl -- Examine Prolog source-files |
prolog_stack.pl -- Examine the Prolog stack |
| backtrace/1 | Get and print a stacktrace to the user_error stream. |  |
| get_prolog_backtrace/2 | Obtain a backtrace from the current location. |  |
| get_prolog_backtrace/3 | Obtain a backtrace from the current location. |  |
| print_last_choicepoint/0 | Print details on the last open choice point. |  |
| print_last_choicepoint/2 | |  |
| print_prolog_backtrace/2 | Print a stacktrace in human readable form to Stream. |  |
| print_prolog_backtrace/3 | Print a stacktrace in human readable form to Stream. |  |
| prolog_stack_frame_property/2 | True when Property is a property of Frame. |  |
| stack_guard/1 | Dynamic multifile hook that is normally not defined. |  |
| stack_guard/1 | Dynamic multifile predicate. |  |
prolog_trace.pl -- Print access to predicates |
| list_tracing/0 | List predicates we are currently tracing. |  |
| notraceall/0 | Remove all trace points. |  |
| trace/1 | Print passes through ports of specified predicates. |  |
| trace/2 | Print passes through ports of specified predicates. |  |
| tracing/2 | True if Spec is traced using Ports. |  |
prolog_versions.pl -- Demand specific (Prolog) versions |
| cmp_versions/3 | Compare to versions. |  |
| require_prolog_version/2 | Claim that the running Prolog version is at least version Required and provides the requested Features. |  |
| require_version/3 | Require Component to have version CmpRequired, while Component is know to have version Available. |  |
prolog_wrap.pl -- Wrapping predicates |
prolog_xref.pl -- Prolog cross-referencer data collection |
| called_by/2 | If this succeeds, the cross-referencer assumes Goal may call any of the goals in ListOfCalled. |  |
| called_by/4 | True 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. |  |
| hook/1 | True if Goal is a hook that is called spontaneously (e.g., from foreign code). |  |
| meta_goal/2 | Define meta-predicates. |  |
| xref_called/3 | True when By is called from Called in Source. |  |
| xref_called/4 | True when By is called from Called in Source. |  |
| xref_called/5 | True when By is called from Called in Source. |  |
| xref_clean/1 | Reset the database for the given source. |  |
| xref_comment/3 | Is true when Source has a section comment with Title and Comment. |  |
| xref_comment/4 | Is true when Head in Source has the given PlDoc comment. |  |
| xref_current_source/1 | Check what sources have been analysed. |  |
| xref_defined/3 | Test if Goal is accessible in Source. |  |
| xref_definition_line/2 | If the 3th argument of xref_defined contains line info, return this in Line. |  |
| xref_done/2 | Cross-reference executed at Time. |  |
| xref_exported/2 | True when Source exports Head. |  |
| xref_hook/1 | Definition of known hooks. |  |
| xref_meta/2 | True when Called is a list of terms called from Head. |  |
| xref_meta/3 | True when Head calls Called in Source. |  |
| xref_mode/3 | Is true when Source provides a predicate with Mode and determinism. |  |
| xref_module/2 | True if Module is defined in Source. |  |
| xref_op/2 | Give the operators active inside the module. |  |
| xref_option/2 | True when Source was processed using Option. |  |
| xref_prolog_flag/4 | True when Flag is set to Value at Line in Source. |  |
| xref_public_list/3 | Find meta-information about File. |  |
| xref_public_list/4 | Find meta-information about File. |  |
| xref_public_list/6 | Find meta-information about File. |  |
| xref_public_list/7 | Find meta-information about File. |  |
| xref_source/1 | Generate the cross-reference data for Source if not already done and the source is not modified. |  |
| xref_source/2 | Generate the cross-reference data for Source if not already done and the source is not modified. |  |
| xref_source_file/3 | Find named source file from Spec, relative to Src. |  |
| xref_source_file/4 | Find named source file from Spec, relative to Src. |  |
| xref_uses_file/3 | True when Source tries to load a file using Spec. |  |
pure_input.pl -- Pure Input from files and streams |
qpforeign.pl -- Quintus compatible foreign loader |
| load_foreign_files/0 | Calls make_foreign_wrapper_file(+File), compiles the wrapper and loads the predicates. |  |
| load_foreign_files/2 | Calls make_foreign_wrapper_file(+File), compiles the wrapper and loads the predicates. |  |
| load_foreign_files/3 | Calls make_foreign_wrapper_file(+File), compiles the wrapper and loads the predicates. |  |
| load_foreign_resource/2 | Load a foreign module. |  |
| make_foreign_resource_wrapper/3 | Create a wrapper-file for the given foreign resource. |  |
| make_foreign_wrapper_file/1 | Just output the wrapper file to the named .c file. |  |
| make_foreign_wrapper_file/2 | Just output the wrapper file to the named .c file. |  |
| make_shared_object/3 | Generate a wrapper and link it using plld to the given SharedObject. |  |
qsave.pl -- Save current program as a state or executable |
| arch_shlib/3 | This is a user defined hook called by qsave_program/2. |  |
| qsave_program/1 | Make a saved state in file `File'. |  |
| qsave_program/2 | Make a saved state in file `File'. |  |
| qsave_toplevel/0 | Called to handle `-c file` compilaton. |  |
quasi_quotations.pl -- Define Quasi Quotation syntax |
quintus.pl -- Quintus compatibility |
| abs/2 | Unify `Absolute' with the absolute value of `Number'. |  |
| acos/2 | Math library predicates. |  |
| asin/2 | Math library predicates. |  |
| atan/2 | Math library predicates. |  |
| atan2/3 | Math library predicates. |  |
| atom_char/2 | Same as ISO char_code/2. |  |
| ceiling/2 | Math library predicates. |  |
| compile/1 | Compile files. |  |
| cos/2 | Math library predicates. |  |
| current_stream/3 | SICStus/Quintus and backward compatible predicate. |  |
| date/1 | Get current date as date(Y,M,D). |  |
| floor/2 | Math library predicates. |  |
| genarg/3 | Generalised version of ISO arg/3. |  |
| log/2 | Math library predicates. |  |
| log10/2 | Math library predicates. |  |
| midstring/3 | Too difficult to explain. |  |
| midstring/4 | Too difficult to explain. |  |
| midstring/5 | Too difficult to explain. |  |
| midstring/6 | Too difficult to explain. |  |
| no_style_check/1 | Same as SWI-Prolog style_check(-Style). |  |
| on_exception/3 | |  |
| otherwise/0 | For (A -> B ; otherwise -> C). |  |
| pow/3 | Math library predicates. |  |
| prolog_flag/2 | Same as ISO current_prolog_flag/2. |  |
| raise_exception/1 | Quintus compatible exception handling. |  |
| round/2 | Math library predicates. |  |
| sign/2 | Math library predicates. |  |
| simple/1 | Term is atomic or a variable. |  |
| sin/2 | Math library predicates. |  |
| skip_line/0 | Skip the rest of the current line (on Stream). |  |
| skip_line/1 | Skip the rest of the current line (on Stream). |  |
| sqrt/2 | Math library predicates. |  |
| stream_position/3 | True when Old is the current position in Stream and the stream has been repositioned to New. |  |
| tan/2 | Math library predicates. |  |
| unix/1 | This predicate provides a partial emulation of the corresponding Quintus predicate. |  |
random.pl -- Random numbers |
rbtrees.pl -- Red black trees |
readln.pl -- Read line as list of tokens |
readutil.pl -- Read utilities |
| read_file_to_codes/3 | Read the file Spec into a list of Codes. |  |
| read_file_to_string/3 | Read the file Spec into a the string String. |  |
| read_file_to_terms/3 | Read the file Spec into a list of terms. |  |
| read_line_to_codes/2 | Read the next line of input from Stream. |  |
| read_line_to_codes/3 | Difference-list version to read an input line to a list of character codes. |  |
| read_line_to_string/2 | Read the next line from Stream into String. |  |
| read_stream_to_codes/2 | Read input from Stream to a list of character codes. |  |
| read_stream_to_codes/3 | Read input from Stream to a list of character codes. |  |
record.pl -- Access compound arguments by name |
rwlocks.pl -- Read/write locks |
sandbox.pl -- Sandboxed Prolog code |
settings.pl |
| convert_setting_text/3 | Converts from textual form to Prolog Value. |  |
| current_setting/1 | True if Setting is a currently defined setting. |  |
| env/2 | Evaluate environment variables on behalf of arithmetic expressions. |  |
| env/3 | Evaluate environment variables on behalf of arithmetic expressions. |  |
| list_settings/0 | List settings to current_output. |  |
| list_settings/1 | List settings to current_output. |  |
| load_settings/1 | Load local settings from File. |  |
| load_settings/2 | Load local settings from File. |  |
| restore_setting/1 | Restore the value of setting Name to its default. |  |
| save_settings/0 | Save modified settings to File. |  |
| save_settings/1 | Save modified settings to File. |  |
| set_setting/2 | Change a setting. |  |
| set_setting_default/2 | Change the default for a setting. |  |
| setting/2 | True when Name is a currently defined setting with Value. |  |
| setting/4 | Define a setting. |  |
| setting_property/2 | Query currently defined settings. |  |
shell.pl -- Elementary shell commands |
shlib.pl -- Utility library for loading foreign objects (DLLs, shared objects) |
| compat_arch/2 | User definable hook to establish if Arch1 is compatible with Arch2 when running a shared object. |  |
| current_foreign_library/2 | Query currently loaded shared libraries. |  |
| load_foreign_library/1 | Load a shared object or DLL. |  |
| load_foreign_library/2 | Load a shared object or DLL. |  |
| reload_foreign_libraries/0 | Reload all foreign libraries loaded (after restore of a state created using qsave_program/2. |  |
| unload_foreign_library/1 | Unload a shared object or DLL. |  |
| unload_foreign_library/2 | Unload a shared object or DLL. |  |
| use_foreign_library/1 | Load and install a foreign library as load_foreign_library/1,2 and register the installation using initialization/2 with the option now. |  |
| use_foreign_library/2 | Load and install a foreign library as load_foreign_library/1,2 and register the installation using initialization/2 with the option now. |  |
solution_sequences.pl -- Modify solution sequences |
sort.pl |
statistics.pl -- Get information about resource usage |
| call_time/2 | Call Goal as call/1, unifying Time with a dict that provides information on the resource usage. |  |
| call_time/3 | Call Goal as call/1, unifying Time with a dict that provides information on the resource usage. |  |
| statistics/0 | Print information about resource usage using print_message/2. |  |
| statistics/1 | Stats is a dict representing the same information as statistics/0. |  |
| thread_statistics/2 | Obtain statistical information about a single thread. |  |
| time/1 | Execute Goal, reporting statistics to the user. |  |
streams.pl -- Manage Prolog streams |
strings.pl -- String utilities |
system.pl -- System utilities |
tables.pl -- XSB interface to tables |
terms.pl -- Term manipulation |
| foldsubterms/4 | The predicate foldsubterms/5 calls call(Goal4, SubTerm1, SubTerm2, StateIn, StateOut) for each subterm, including variables, in Term1. |  |
| foldsubterms/5 | The predicate foldsubterms/5 calls call(Goal4, SubTerm1, SubTerm2, StateIn, StateOut) for each subterm, including variables, in Term1. |  |
| mapargs/3 | Term1 and Term2 have the same functor (name/arity) and for each matching pair of arguments call(Goal, A1, A2) is true. |  |
| mapsubterms/3 | Recursively map sub terms of Term1 into subterms of Term2 for every pair for which call(Goal, ST1, ST2) succeeds. |  |
| mapsubterms_var/3 | Recursively map sub terms of Term1 into subterms of Term2 for every pair for which call(Goal, ST1, ST2) succeeds. |  |
| same_functor/2 | True when Term1 and Term2 are terms that have the same functor (Name/Arity). |  |
| same_functor/3 | True when Term1 and Term2 are terms that have the same functor (Name/Arity). |  |
| same_functor/4 | True when Term1 and Term2 are terms that have the same functor (Name/Arity). |  |
| subsumes/2 | True if Generic is unified to Specific without changing Specific. |  |
| subsumes_chk/2 | True if Generic can be made equivalent to Specific without changing Specific. |  |
| term_factorized/3 | Is 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. |  |
| term_size/2 | True if Size is the size in cells occupied by Term on the global (term) stack. |  |
| term_subsumer/3 | General is the most specific term that is a generalisation of Special1 and Special2. |  |
| variant/2 | Same as SWI-Prolog Term1 =@= Term2. |  |
thread.pl -- High level thread primitives |
thread_pool.pl -- Resource bounded thread management |
threadutil.pl -- Interactive thread utilities |
tty.pl -- Terminal operations |
| menu/3 | Show a menu. |  |
| tty_clear/0 | Clear the display. |  |
| tty_flash/0 | Give visual signal if possible, otherwise beep. |  |
ugraphs.pl -- Graph manipulation library |
url.pl -- Analysing and constructing URL |
utf8.pl -- UTF-8 encoding/decoding on lists of character codes. |
varnumbers.pl -- Utilities for numbered terms |
| max_var_number/3 | True when Max is the max of Start and the highest numbered $VAR(N) term. |  |
| numbervars/1 | Number variables in Term using $VAR(N). |  |
| varnumbers/2 | Inverse of numbervars/1. |  |
| varnumbers/3 | Inverse of numbervars/3. |  |
| varnumbers_names/3 | If Term is a term with numbered and named variables using the reserved term '$VAR'(X), Copy is a copy of Term where each '$VAR'(X) is consistently replaced by a fresh variable and Bindings is a list X = Var, relating the X terms with the variable it is mapped to. |  |
vm.pl -- SWI-Prolog Virtual Machine utilities |
wfs.pl -- Well Founded Semantics interface |
when.pl -- Conditional coroutining |
writef.pl -- Old-style formatted write |
www_browser.pl -- Open a URL in the users browser |
| expand_url_path/2 | Expand URL specifications similar to absolute_file_name/3. |  |
| known_browser/2 | True if browser FileBaseName has a remote protocol compatible to Compatible. |  |
| www_open_url/1 | Open URL in running version of the users' browser or start a new browser. |  |
yall.pl -- Lambda expressions |
| //2 | Shorthand for Free/[]>>Lambda. |  |
| //3 | Shorthand for Free/[]>>Lambda. |  |
| //4 | Shorthand for Free/[]>>Lambda. |  |
| //5 | Shorthand for Free/[]>>Lambda. |  |
| //6 | Shorthand for Free/[]>>Lambda. |  |
| //7 | Shorthand for Free/[]>>Lambda. |  |
| //8 | Shorthand for Free/[]>>Lambda. |  |
| //9 | Shorthand for Free/[]>>Lambda. |  |
| >>/2 | Calls a copy of Lambda. |  |
| >>/3 | Calls a copy of Lambda. |  |
| >>/4 | Calls a copy of Lambda. |  |
| >>/5 | Calls a copy of Lambda. |  |
| >>/6 | Calls a copy of Lambda. |  |
| >>/7 | Calls a copy of Lambda. |  |
| >>/8 | Calls a copy of Lambda. |  |
| >>/9 | Calls a copy of Lambda. |  |
| is_lambda/1 | True if Term is a valid Lambda expression. |  |
| lambda_calls/2 | Goal is the goal called if call/N is applied to LambdaExpression, where ExtraArgs are the additional arguments to call/N. |  |
| lambda_calls/3 | Goal is the goal called if call/N is applied to LambdaExpression, where ExtraArgs are the additional arguments to call/N. |  |
zip.pl -- Access resource ZIP archives |