- swipl
- library
- error.pl
- debug.pl -- Print debug messages and test assertions
- apply.pl -- Apply predicates on a list
- lists.pl
- broadcast.pl -- Event service
- predicate_options.pl
- shlib.pl -- Utility library for loading foreign objects (DLLs, shared objects)
- option.pl -- Option list processing
- thread_pool.pl -- Resource bounded thread management
- gensym.pl
- settings.pl -- Setting management
- arithmetic.pl -- Extensible arithmetic
- main.pl -- Provide entry point for scripts
- readutil.pl
- operators.pl -- Manage operators
- pairs.pl -- Operations on key-value lists
- prolog_source.pl -- Examine Prolog source-files
- quasi_quotations.pl -- Define Quasi Quotation syntax
- url.pl -- Analysing and constructing URL
- www_browser.pl -- Open a URL in the users browser
- prolog_colour.pl
- record.pl -- Access compound arguments by name
- prolog_xref.pl -- Prolog cross-referencer data collection
- occurs.pl -- Finding and counting sub-terms
- ordsets.pl -- Ordered set manipulation
- assoc.pl -- Binary associations
- ugraphs.pl -- Graph manipulation library
- iostream.pl -- Utilities to deal with streams
- atom.pl -- Operations on atoms
- prolog_pack.pl -- A package manager for Prolog
- solution_sequences.pl -- Modify solution sequences
- git.pl -- Run GIT commands
- ctypes.pl -- Character code classification
- utf8.pl -- UTF-8 encoding/decoding on lists of character codes.
- base64.pl -- Base64 encoding and decoding
- persistency.pl -- Provide persistent dynamic predicates
- pure_input.pl -- Pure Input from files and streams
- nb_set.pl -- Non-backtrackable sets
- aggregate.pl -- Aggregation operators on backtrackable predicates
- csv.pl -- Process CSV (Comma-Separated Values) data
- dialect.pl -- Support multiple Prolog dialects
- apply_macros.pl -- Goal expansion rules to avoid meta-calling
- yall.pl -- Lambda expressions
- prolog_code.pl -- Utilities for reasoning about code
- dif.pl -- The dif/2 constraint
- thread.pl -- High level thread primitives
- rbtrees.pl -- Red black trees
- nb_rbtrees.pl -- Non-backtrackable operations on red black trees
- random.pl -- Random numbers
- sandbox.pl -- Sandboxed Prolog code
- prolog_format.pl -- Analyse format specifications
- pprint.pl -- Pretty Print Prolog terms
- modules.pl -- Module utility predicates
- lazy_lists.pl -- Lazy list handling
- edinburgh.pl -- Some traditional Edinburgh predicates
- prolog_clause.pl -- Get detailed source-information about a clause
- prolog_breakpoints.pl -- Manage Prolog break-points
- dicts.pl -- Dict utilities
- listing.pl -- List programs and pretty print clauses
- edit.pl -- Editor interface
- backcomp.pl -- Backward compatibility
- writef.pl -- Old-style formatted write
- when.pl -- Conditional coroutining
- statistics.pl -- Get information about resource usage
- prolog_config.pl -- Provide configuration information
- macros.pl -- Macro expansion
- terms.pl -- Term manipulation
- make.pl -- Reload modified source files
- wfs.pl -- Well Founded Semantics interface
- optparse.pl -- command line parsing
- increval.pl -- Incremental dynamic predicate modification
- tables.pl -- XSB interface to tables
- hashtable.pl -- Hash tables
- base32.pl -- Base32 encoding and decoding
- prolog_trace.pl -- Print access to predicates
- prolog_wrap.pl -- Wrapping predicates
- threadutil.pl -- Interactive thread utilities
- prolog_coverage.pl -- Coverage analysis tool
- ansi_term.pl -- Print decorated text to ANSI consoles
- strings.pl -- String utilities
- zip.pl -- Access resource ZIP archives
- codesio.pl -- I/O on Lists of Character Codes
- date.pl -- Process dates and times
- prolog_profile.pl -- Execution profiler
- quintus.pl -- Quintus compatibility
- heaps.pl -- heaps/priority queues
- streams.pl -- Manage Prolog streams
- check.pl -- Consistency checking
- prolog_history.pl -- Per-directory persistent commandline history
- prolog_stack.pl -- Examine the Prolog stack
- prolog_debug.pl -- User level debugging tools
- prolog_codewalk.pl -- Prolog code walker
- charsio.pl -- I/O on Lists of Character Codes
- coinduction.pl -- Co-Logic Programming
- sort.pl
- varnumbers.pl -- Utilities for numbered terms
- fastrw.pl -- Fast reading and writing of terms
- prolog_versions.pl -- Demand specific (Prolog) versions
- prolog_autoload.pl -- Autoload all dependencies
- shell.pl -- Elementary shell commands
- intercept.pl -- Intercept and signal interface
- rwlocks.pl -- Read/write locks
- prolog_jiti.pl -- Just In Time Indexing (JITI) utilities
- prolog_metainference.pl -- Infer meta-predicate properties
- system.pl -- System utilities
- tty.pl -- Terminal operations
- help.pl -- Text based manual
- oset.pl -- Ordered set manipulation
- explain.pl -- Describe Prolog Terms
- portray_text.pl -- Portray text
- files.pl
- win_menu.pl -- Console window menu
- qsave.pl -- Save current program as a state or executable
- library
- listing(:What) is det
- listing(:What, +Options) is det
- List matching clauses. What is either a plain specification or a
list of specifications. Plain specifications are:
- Predicate indicator (Name/Arity or Name//Arity) Lists the indicated predicate. This also outputs relevant declarations, such as multifile/1 or dynamic/1.
- A Head term. In this case, only clauses whose head
unify with Head are listed. This is illustrated in the
query below that only lists the first clause of append/3.
?- listing(append([], _, _)). lists:append([], L, L).
- A clause reference as obtained for example from nth_clause/3.
The following options are defined:
- variable_names(+How)
- One of
source
(default) orgenerated
. Ifsource
, for each clause that is associated to a source location the system tries to restore the original variable names. This may fail if macro expansion is not reversible or the term cannot be read due to different operator declarations. In that case variable names are generated. - source(+Bool)
- If
true
(defaultfalse
), extract the lines from the source files that produced the clauses, i.e., list the original source text rather than the decompiled clauses. Each set of contiguous clauses is preceded by a comment that indicates the file and line of origin. Clauses that cannot be related to source code are decompiled where the comment indicates the decompiled state. This is notably practical for collecting the state of multifile predicates. For example:?- listing(file_search_path, [source(true)]).