- Documentation
- Reference manual
- The SWI-Prolog library
- library(aggregate): Aggregation operators on backtrackable predicates
- library(ansi_term): Print decorated text to ANSI consoles
- library(apply): Apply predicates on a list
- library(assoc): Association lists
- library(broadcast): Broadcast and receive event notifications
- library(charsio): I/O on Lists of Character Codes
- library(check): Consistency checking
- library(clpb): CLP(B): Constraint Logic Programming over Boolean Variables
- library(clpfd): CLP(FD): Constraint Logic Programming over Finite Domains
- library(clpqr): Constraint Logic Programming over Rationals and Reals
- library(csv): Process CSV (Comma-Separated Values) data
- library(dcg/basics): Various general DCG utilities
- library(dcg/high_order): High order grammar operations
- library(debug): Print debug messages and test assertions
- library(dicts): Dict utilities
- library(error): Error generating support
- library(fastrw): Fast reading and writing of terms
- library(gensym): Generate unique symbols
- library(heaps): heaps/priority queues
- library(increval): Incremental dynamic predicate modification
- library(intercept): Intercept and signal interface
- library(iostream): Utilities to deal with streams
- library(listing): List programs and pretty print clauses
- library(lists): List Manipulation
- library(macros): Macro expansion
- library(main): Provide entry point for scripts
- library(nb_set): Non-backtrackable set
- library(www_browser): Open a URL in the users browser
- library(occurs): Finding and counting sub-terms
- library(option): Option list processing
- library(optparse): command line parsing
- library(ordsets): Ordered set manipulation
- library(pairs): Operations on key-value lists
- library(persistency): Provide persistent dynamic predicates
- library(pio): Pure I/O
- library(portray_text): Portray text
- library(predicate_options): Declare option-processing of predicates
- library(prolog_coverage): Coverage analysis tool
- library(prolog_debug): User level debugging tools
- library(prolog_jiti): Just In Time Indexing (JITI) utilities
- library(prolog_trace): Print access to predicates
- library(prolog_versions): Demand specific (Prolog) versions
- library(prolog_xref): Prolog cross-referencer data collection
- library(quasi_quotations): Define Quasi Quotation syntax
- library(random): Random numbers
- library(rbtrees): Red black trees
- library(readutil): Read utilities
- library(record): Access named fields in a term
- library(registry): Manipulating the Windows registry
- library(rwlocks): Read/write locks
- library(settings): Setting management
- library(statistics): Get information about resource usage
- library(strings): String utilities
- library(simplex): Solve linear programming problems
- library(solution_sequences): Modify solution sequences
- library(tables): XSB interface to tables
- library(terms): Term manipulation
- library(thread): High level thread primitives
- library(thread_pool): Resource bounded thread management
- library(ugraphs): Graph manipulation library
- library(url): Analysing and constructing URL
- library(varnumbers): Utilities for numbered terms
- library(yall): Lambda expressions
- The SWI-Prolog library
- Packages
- Reference manual
A.6 library(charsio): I/O on Lists of Character Codes
- Compatibility
- The naming of this library is not in line with the ISO standard. We believe that the SWI-Prolog native predicates form a more elegant alternative for this library.
This module emulates the Quintus/SICStus library charsio.pl
for reading and writing from/to lists of character codes. Most of these
predicates are straight calls into similar SWI-Prolog primitives. Some
can even be replaced by ISO standard predicates.
- [det]format_to_chars(+Format, +Args, -Codes)
- Use format/2 to write to a list of character codes.
- [det]format_to_chars(+Format, +Args, -Codes, ?Tail)
- Use format/2 to write to a difference list of character codes.
- write_to_chars(+Term, -Codes)
- Write a term to a code list. True when Codes is a list of character codes written by write/1 on Term.
- write_to_chars(+Term, -Codes, ?Tail)
- Write a term to a code list. Codes
\Tail is a difference list of character codes produced by write/1 on Term. - [det]atom_to_chars(+Atom, -Codes)
- Convert Atom into a list of character codes.
- deprecated
- Use ISO atom_codes/2.
- [det]atom_to_chars(+Atom, -Codes, ?Tail)
- Convert Atom into a difference list of character codes.
- [det]number_to_chars(+Number, -Codes)
- Convert Atom into a list of character codes.
- deprecated
- Use ISO number_codes/2.
- [det]number_to_chars(+Number, -Codes, ?Tail)
- Convert Number into a difference list of character codes.
- [det]read_from_chars(+Codes, -Term)
- Read Codes into Term.
- Compatibility
- The SWI-Prolog version does not require Codes to end in a full-stop.
- [det]read_term_from_chars(+Codes, -Term, +Options)
- Read Codes into Term. Options are
processed by read_term/3.
- Compatibility
- sicstus
- [det]open_chars_stream(+Codes, -Stream)
- Open Codes as an input stream.
- See also
- open_string/2.
- [det]with_output_to_chars(:Goal, -Codes)
- Run Goal as with once/1.
Output written to
current_outputis collected in Codes. - [det]with_output_to_chars(:Goal, -Codes, ?Tail)
- Run Goal as with once/1.
Output written to
current_outputis collected in Codes\Tail. - [det]with_output_to_chars(:Goal, -Stream, -Codes, ?Tail)
- Same as with_output_to_chars/3
using an explicit stream. The difference list Codes
\Tail contains the character codes that Goal has written to Stream.