aggregate.pl -- Aggregation operators on backtrackable predicates |
ansi_term.pl -- Print decorated text to ANSI consoles |
| ansi_format/3 | 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 |
arithmetic.pl -- Extensible arithmetic |
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 |
| atom_to_chars/2 | Convert Atom into a list of character codes. |  |
| atom_to_chars/3 | Convert Atom into a difference list of character codes. |  |
| format_to_chars/3 | Use format/2 to write to a list of character codes. |  |
| format_to_chars/4 | Use format/2 to write to a difference list of character codes. |  |
| number_to_chars/2 | Convert Atom into a list of character codes. |  |
| number_to_chars/3 | Convert Number into a difference list of character codes. |  |
| open_chars_stream/2 | Open Codes as an input stream. |  |
| read_from_chars/2 | Read Codes into Term. |  |
| read_term_from_chars/3 | Read Codes into Term. |  |
| with_output_to_chars/2 | Run Goal as with once/1. |  |
| with_output_to_chars/3 | Run Goal as with once/1. |  |
| with_output_to_chars/4 | Same as with_output_to_chars/3 using an explicit stream. |  |
| write_to_chars/2 | Write a term to a code list. |  |
| write_to_chars/3 | Write a term to a code list. |  |
check.pl -- Consistency checking |
codesio.pl -- I/O on Lists of Character Codes |
coinduction.pl -- Co-Logic Programming |
csv.pl -- Process CSV (Comma-Separated Values) data |
ctypes.pl -- Character code classification |
date.pl -- Process dates and times |
debug.pl -- Print debug messages and test assertions |
dialect.pl -- Support multiple Prolog dialects |
dicts.pl |
| dict_fill/4 | Implementation for the dicts_to_same_keys/3 OnEmpty closure that fills new cells with a copy of ValueIn. |  |
| dict_keys/2 | True when Keys is an ordered set of the keys appearing in Dict. |  |
| dict_size/2 | True when KeyCount is the number of keys in Dict. |  |
| dicts_join/3 | Join dicts in Dicts that have the same value for Key, provided they do not have conflicting values on other keys. |  |
| dicts_join/4 | Join two lists of dicts (Dicts1 and Dicts2) on Key. |  |
| dicts_same_keys/2 | True if List is a list of dicts that all have the same keys and Keys is an ordered set of these keys. |  |
| dicts_same_tag/2 | True when List is a list of dicts that all have the tag Tag. |  |
| dicts_slice/3 | DictsOut is a list of Dicts only containing values for Keys. |  |
| dicts_to_compounds/4 | True 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. |  |
| dicts_to_same_keys/3 | DictsOut is a copy of DictsIn, where each dict contains all keys appearing in all dicts of DictsIn. |  |
| mapdict/2 | True when all dicts have the same set of keys and call(Goal, Key, V1, ...) is true for all keys in the dicts. |  |
| mapdict/3 | True when all dicts have the same set of keys and call(Goal, Key, V1, ...) is true for all keys in the dicts. |  |
| mapdict/4 | True when all dicts have the same set of keys and call(Goal, Key, V1, ...) is true for all keys in the dicts. |  |
dif.pl -- The dif/2 constraint |
edinburgh.pl -- Some traditional Edinburgh predicates |
error.pl |
exceptions.pl |
| catch/4 | As catch/3, only catching exceptions for which exception(ErrorType,Ball) is true. |  |
| error_term/2 | Describe the formal part of error(Formal,ImplDefined) exceptions. |  |
| exception/2 | If Ball is unbound, adds a delayed goal that tests the error belongs to Type when Ball is instantiated (by catch/3). |  |
| exception_term/2 | Describe exceptions that are not error(Formal, _) terms. |  |
| exception_type/2 | Declare all exceptions subsumed by Term to be an exception of Type. |  |
fastrw.pl -- Fast reading and writing of terms |
gensym.pl -- Generate unique symbols |
git.pl -- Run GIT commands |
hashtable.pl |
| 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 |
increval.pl -- Incremental dynamic predicate modification |
intercept.pl |
| 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 |
| close_any/1 | Execute the Close closure returned by open_any/5. |  |
| open_any/5 | Establish a stream from Specification that should be closed using Close, which can either be called or passed to close_any/1. |  |
lazy_lists.pl -- Lazy list handling |
listing.pl |
| 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 |
macros.pl |
| expand_macros/5 | Perform macro expansion on TermIn with layout PosIn to produce TermOut with layout PosOut. |  |
| include_macros/3 | Include macros from another module. |  |
| macro_position/1 | True when Position is the position of the macro. |  |
main.pl |
| argv_options/3 | Parse command line arguments. |  |
| argv_options/4 | As argv_options/3 in guided mode, Currently this version allows parsing argument options throwing an exception rather than calling halt/1 by passing an empty list to ParseOptions. |  |
| argv_usage/1 | Use print_message/2 to print a usage message at Level. |  |
| cli_debug_opt_help/2 | Implements opt_type/3, opt_help/2 and opt_meta/2 for debug arguments. |  |
| cli_debug_opt_meta/2 | Implements opt_type/3, opt_help/2 and opt_meta/2 for debug arguments. |  |
| cli_debug_opt_type/3 | Implements opt_type/3, opt_help/2 and opt_meta/2 for debug arguments. |  |
| cli_enable_development_system/0 | Re-enable the development environment. |  |
| cli_parse_debug_options/2 | Parse certain commandline options for debugging and development purposes. |  |
| main/0 | Call main/1 using the passed command-line arguments. |  |
make.pl |
| 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 |
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 |
pairs.pl -- Operations on key-value lists |
persistency.pl -- Provide persistent dynamic predicates |
pio.pl -- Pure I/O |
portray_text.pl |
| portray_text/1 | Switch portraying on or off. |  |
| set_portray_text/2 | Set options for portraying. |  |
| set_portray_text/3 | Set options for portraying. |  |
pprint.pl |
| print_term/2 | Pretty print a Prolog term. |  |
predicate_options.pl -- Access and analyse predicate options |
prolog_autoload.pl |
| autoload_all/0 | Force all necessary autoloading to be done now. |  |
| autoload_all/1 | Force all necessary autoloading to be done now. |  |
prolog_breakpoints.pl -- Manage Prolog break-points |
prolog_clause.pl |
prolog_code.pl -- Utilities for reasoning about code |
prolog_codewalk.pl -- Prolog code walker |
prolog_colour.pl -- Prolog syntax colouring support. |
prolog_config.pl |
| 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 |
prolog_debug.pl -- User level debugging tools |
prolog_format.pl -- Analyse format specifications |
prolog_metainference.pl -- Infer meta-predicate properties |
prolog_pack.pl -- A package manager for Prolog |
prolog_profile.pl |
| profile/1 | Run once(Goal) under the execution profiler. |  |
| profile/2 | Run once(Goal) under the execution profiler. |  |
| profile_data/1 | Gather all relevant data from profiler. |  |
| profile_procedure_data/2 | Collect data for Pred. |  |
| show_profile/1 | Display last collected profiling data. |  |
prolog_source.pl |
| quasi_quotation_syntax/2 | True when the quasi quotation syntax Syntax can be loaded from Library. |  |
| xref_close_source/2 | Called by prolog_close_source/1 to close a source previously opened by the hook prolog:xref_open_source/2. |  |
| xref_open_source/2 | Hook to open an xref SourceID. |  |
| directory_source_files/3 | True when Files is a sorted list of Prolog source files in Dir. |  |
| file_alias_path/2 | True if file Alias points to Dir. |  |
| file_name_on_path/2 | True if OnPath a description of File based on the file search path. |  |
| load_quasi_quotation_syntax/2 | Import quasi quotation syntax Syntax from Path into the module specified by the first argument. |  |
| path_segments_atom/2 | Translate between a path represented as a/b/c and an atom representing the same path. |  |
| prolog_canonical_source/2 | Given a user-specification of a source, generate a unique and indexable identifier for it. |  |
| prolog_close_source/1 | Close a stream opened using prolog_open_source/2. |  |
| prolog_file_directives/3 | True when Directives is a list of directives that appear in the source file File. |  |
| prolog_open_source/2 | Open source with given canonical id (see prolog_canonical_source/2) and remove the #! |  |
| prolog_read_source_term/4 | Read a term from a Prolog source-file. |  |
| read_source_term_at_location/3 | Try to read a Prolog term form an arbitrary location inside a file. |  |
| requires_library/2 | known expansion hooks. |  |
| valid_term_position/2 | Check that a Term has an appropriate TermPos layout. |  |
prolog_stack.pl -- Examine the Prolog stack |
prolog_trace.pl |
| 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 |
| 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 |
| current_predicate_wrapper/4 | True if Head is wrapped with Body. |  |
| unwrap_predicate/2 | Remove the outermost wrapper whose name unifies with Name. | |
| wrap_predicate/4 | Wrap the predicate referenced by Head using Body. |  |
prolog_xref.pl -- Prolog cross-referencer data collection |
pure_input.pl -- Pure Input from files and streams |
qsave.pl |
| 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 |
random.pl -- Random numbers |
rbtrees.pl |
| is_rbtree/1 | True if Term is a valid Red-Black tree. |  |
| list_to_rbtree/2 | Tree is the red-black tree corresponding to the mapping in List, which should be a list of Key-Value pairs. |  |
| ord_list_to_rbtree/2 | Tree is the red-black tree corresponding to the mapping in list List, which should be a list of Key-Value pairs. |  |
| rb_apply/4 | If the value associated with key Key is Val0 in Tree, and if call(G,Val0,ValF) holds, then NewTree differs from Tree only in that Key is associated with value ValF in tree NewTree. |  |
| rb_clone/3 | `Clone' the red-back tree TreeIn into a new tree TreeOut with the same keys as the original but with all values set to unbound values. |  |
| rb_del_max/4 | Delete the largest element from the tree Tree, returning the key Key, the value Val associated with the key and a new tree NewTree. |  |
| rb_del_min/4 | Delete the least element from the tree Tree, returning the key Key, the value Val associated with the key and a new tree NewTree. |  |
| rb_delete/3 | Delete element with key Key from the tree Tree, returning the value Val associated with the key and a new tree NewTree. |  |
| rb_delete/4 | Same as rb_delete(Tree, Key, NewTree), but also unifies Val with the value associated with Key in Tree. |  |
| rb_empty/1 | Succeeds if Tree is an empty Red-Black tree. |  |
| rb_fold/4 | Fold the given predicate over all the key-value pairs in Tree, starting with initial state State0 and returning the final state State. |  |
| rb_in/3 | True when Key-Value is a key-value pair in red-black tree Tree. |  |
| rb_insert/4 | Add an element with key Key and Value to the tree Tree creating a new red-black tree NewTree. |  |
| rb_insert_new/4 | Add a new element with key Key and Value to the tree Tree creating a new red-black tree NewTree. |  |
| rb_keys/2 | Keys is unified with an ordered list of all keys in the Red-Black tree Tree. |  |
| rb_lookup/3 | True when Value is associated with Key in the Red-Black tree Tree. |  |
| rb_map/2 | True if call(Goal, Value) is true for all nodes in T. |  |
| rb_map/3 | For all nodes Key in the tree Tree, if the value associated with key Key is Val0 in tree Tree, and if call(G,Val0,ValF) holds, then the value associated with Key in NewTree is ValF. |  |
| rb_max/3 | Key is the maximal key in Tree, and is associated with Val. |  |
| rb_min/3 | Key is the minimum key in Tree, and is associated with Val. |  |
| rb_new/1 | Create a new Red-Black tree Tree. |  |
| rb_next/4 | Next is the next element after Key in Tree, and is associated with Val. |  |
| rb_partial_map/4 | For all nodes Key in Keys, if the value associated with key Key is Val0 in tree Tree, and if call(G,Val0,ValF) holds, then the value associated with Key in NewTree is ValF, otherwise it is the value associated with the key in Tree. |  |
| rb_previous/4 | Previous is the previous element after Key in Tree, and is associated with Val. |  |
| rb_size/2 | Size is the number of elements in Tree. |  |
| rb_update/4 | Tree NewTree is tree Tree, but with value for Key associated with NewVal. |  |
| rb_update/5 | Same as rb_update(Tree, Key, NewVal, NewTree) but also unifies OldVal with the value associated with Key in Tree. |  |
| rb_visit/2 | Pairs is an infix visit of tree Tree, where each element of Pairs is of the form Key-Value. |  |
readln.pl |
readutil.pl |
| 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 |
sandbox.pl |
| sandbox_allowed_directive/1 | Throws an exception if G is not considered a safe directive. |  |
| sandbox_allowed_expansion/1 | Throws an exception if G is not considered a safe expansion goal. |  |
| sandbox_allowed_goal/1 | Throw an exception if it is not safe to call G. |  |
| format_calls/3 | Find ~@ calls from Format and Args. |  |
| safe_call/1 | Call Goal if it complies with the sandboxing rules. |  |
| safe_directive/1 | Hook to declare additional directives as safe. |  |
| safe_global_variable/1 | Declare the given global variable safe to write to. |  |
| safe_goal/1 | True if calling Goal provides no security risc. |  |
| safe_meta/2 | Hook. |  |
| safe_primitive/1 | True if Goal is safe to call (i.e., cannot access dangerous system-resources and cannot upset other parts of the Prolog process). |  |
| safe_prolog_flag/2 | True if it is safe to set the flag Flag to Value. |  |
settings.pl -- Setting management |
shell.pl -- Elementary shell commands |
| cd/0 | Change working directory. |  |
| cd/1 | Change working directory. |  |
| dirs/0 | Manage the directory stack:. |  |
| file_style/2 | True when File should be listed as a terminal hyperlink. |  |
| ls/0 | Listing similar to Unix =ls -F=, flagging directories with =/=. |  |
| ls/1 | Listing similar to Unix =ls -F=, flagging directories with =/=. |  |
| mv/2 | Move (Rename) a file. |  |
| popd/0 | Manage the directory stack:. |  |
| pushd/0 | Manage the directory stack:. |  |
| pushd/1 | Manage the directory stack:. |  |
| pwd/0 | Print current working directory. |  |
| rm/1 | Remove (unlink) a file. |  |
| shell/0 | Execute an interactive shell. |  |
shlib.pl -- Utility library for loading foreign objects (DLLs, shared objects) |
solution_sequences.pl -- Modify solution sequences |
sort.pl |
statistics.pl |
| 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 |
| with_output_to/3 | Run Goal and once/1 while capturing all output to all streams (current_output, user_output and user_error) in the string Output. |  |
strings.pl -- String utilities |
system.pl -- System utilities |
tables.pl |
| abolish_table_call/1 | Same as abolish_table_subgoals/1. |  |
| abolish_table_call/2 | Same as abolish_table_subgoals/1. |  |
| abolish_table_pred/1 | Invalidates all tabled subgoals for the predicate denoted by the predicate or term indicator Pred. |  |
| abolish_table_subgoals/2 | Behaves as abolish_table_subgoals/1, but allows the default table_gc_action to be over-ridden with a flag, which can be either abolish_tables_transitively or abolish_tables_singly. |  |
| get_call/3 | True when Trie is an answer trie for a variant of CallTerm. |  |
| get_calls/3 | True when Trie is an answer trie for a variant that unifies with CallTerm and Skeleton is the answer skeleton. |  |
| get_residual/2 | True if CallTerm appears in a table and has DelayList. |  |
| get_returns/2 | True when Return is an answer template for the AnswerTrie. |  |
| get_returns/3 | True when Return is an answer template for the AnswerTrie and the answer is represented by the trie node NodeID. |  |
| get_returns_and_dls/3 | True when Return appears in AnswerTrie with the given DelayLists. |  |
| get_returns_and_tvs/3 | Identical to get_returns/2, but also obtains the truth value of a given answer, setting TruthValue to t if the answer is unconditional and to u if it is conditional. |  |
| get_returns_for_call/2 | True if AnswerTerm appears in the tables for the variant CallTerm. |  |
| set_pil_off/0 | Dummy predicates for XSB compatibility. |  |
| set_pil_on/0 | Dummy predicates for XSB compatibility. |  |
| t not/1 | Tabled negation. |  |
| tfindall/3 | This predicate emerged in XSB in an attempt to provide a safer alternative to findall/3. |  |
terms.pl -- Term manipulation |
thread.pl -- High level thread primitives |
thread_pool.pl -- Resource bounded thread management |
threadutil.pl -- Interactive thread utilities |
| attach_console/0 | Create a new console and make the standard Prolog streams point to it. |  |
| attach_console/1 | Create a new console and make the standard Prolog streams point to it. |  |
| join_threads/0 | Join all terminated threads. |  |
| tbacktrace/1 | Print a backtrace for Thread to the stream user_error of the calling thread. |  |
| tbacktrace/2 | Print a backtrace for Thread to the stream user_error of the calling thread. |  |
| tdebug/0 | Enable debug-mode, trapping the graphical debugger on reaching spy-points or errors. |  |
| tdebug/1 | Enable debug-mode, trapping the graphical debugger on reaching spy-points or errors. |  |
| thread_has_console/0 | True when the calling thread has an attached console. |  |
| threads/0 | List currently known threads with their status. |  |
| tnodebug/0 | Disable debug-mode in all threads or the specified Thread. |  |
| tnodebug/1 | Disable debug-mode in all threads or the specified Thread. |  |
| tprofile/1 | Profile the operation of Thread until the user hits a key. |  |
| tspy/1 | Trap the graphical debugger on reaching Spec in the specified or any thread. |  |
| tspy/2 | Trap the graphical debugger on reaching Spec in the specified or any thread. |  |
| with_stopped_threads/2 | Stop all threads except the caller while running once(Goal). |  |
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 |
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 |
yall.pl |
| //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 |