- swipl
- library
- error.pl -- Error generating support
- debug.pl -- Print debug messages and test assertions
- apply.pl
- lists.pl -- List Manipulation
- 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 -- Generate unique symbols
- settings.pl -- Setting management
- arithmetic.pl -- Extensible arithmetic
- main.pl -- Provide entry point for scripts
- readutil.pl -- Read utilities
- 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
- optparse.pl -- command line parsing
- charsio.pl -- I/O on Lists of Character Codes
- portray_text.pl -- Portray text
- prolog_codewalk.pl -- Prolog code walker
- listing.pl -- List programs and pretty print clauses
- prolog_metainference.pl -- Infer meta-predicate properties
- ansi_term.pl -- Print decorated text to ANSI consoles
- hashtable.pl -- Hash tables
- rwlocks.pl -- Read/write locks
- backcomp.pl -- Backward compatibility
- tables.pl -- XSB interface to tables
- macros.pl -- Macro expansion
- terms.pl -- Term manipulation
- wfs.pl -- Well Founded Semantics interface
- writef.pl -- Old-style formatted write
- quintus.pl -- Quintus compatibility
- date.pl -- Process dates and times
- zip.pl -- Access resource ZIP archives
- shell.pl -- Elementary shell commands
- heaps.pl -- heaps/priority queues
- prolog_profile.pl -- Execution profiler
- prolog_config.pl -- Provide configuration information
- sort.pl
- intercept.pl -- Intercept and signal interface
- prolog_coverage.pl -- Coverage analysis tool
- codesio.pl -- I/O on Lists of Character Codes
- system.pl -- System utilities
- prolog_stack.pl -- Examine the Prolog stack
- prolog_wrap.pl -- Wrapping predicates
- explain.pl -- Describe Prolog Terms
- strings.pl -- String utilities
- varnumbers.pl -- Utilities for numbered terms
- edit.pl -- Editor interface
- make.pl -- Reload modified source files
- oset.pl -- Ordered set manipulation
- prolog_versions.pl -- Demand specific (Prolog) versions
- fastrw.pl -- Fast reading and writing of terms
- threadutil.pl -- Interactive thread utilities
- prolog_autoload.pl -- Autoload all dependencies
- check.pl -- Consistency checking
- streams.pl -- Manage Prolog streams
- prolog_debug.pl -- User level debugging tools
- increval.pl -- Incremental dynamic predicate modification
- statistics.pl -- Get information about resource usage
- base32.pl -- Base32 encoding and decoding
- help.pl -- Text based manual
- win_menu.pl -- Console window menu
- tty.pl -- Terminal operations
- qsave.pl -- Save current program as a state or executable
- prolog_jiti.pl -- Just In Time Indexing (JITI) utilities
- prolog_trace.pl -- Print access to predicates
- prolog_history.pl -- Per-directory persistent commandline history
- when.pl -- Conditional coroutining
- files.pl
- coinduction.pl -- Co-Logic Programming
- library
- with_output_to(?Output, :Goal, +Options) is det
- Run Goal and once/1 while capturing all output to all streams
(
current_output
,user_output
anduser_error
) in the string Output. Options processed:- capture(ListOfStreams)
- List of streams to capture. Default is
[]
, causing the predicate to call with_output_to/2. The only admissible list elements are the alias names for the Prolog standard streams. Ascurrent_output
is always captured, the only two values areuser_output
anduser_error
- color(Boolean)
- When
true
, pretend the output is a terminal, causing messages to use ANSI term escape sequences for color.
For example, the following captures an error message. Note that we must catch and print the message inside Goal. If we do not do so the exception of Goal is simply propagated into the environment without binding Output.
?- with_output_to(string(Out), catch(A is log(-1), E, print_message(error, E)), [capture([user_error]), color(true)]). Out = "\u001B[1;31mERROR: is/2: Arithmetic: \c evaluation error: `undefined'\n\u001B[0m", E = error(evaluation_error(undefined), context(system:(is)/2, _)).