SWI-Prolog 9.3.16
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All predicatesShow sourcecodesio.pl -- I/O on Lists of Character Codes

This module emulates the SICStus library codesio.pl for reading and writing from/to lists of character codes. Most of these predicates are straight calls into similar SWI-Prolog primitives.

This library is based on library(charsio) that originates from Quintus Prolog. The naming is updated to reflect the ISO naming conventions and the ISO predicates atom_codes/2, etc are obviously removed from this library.

Compatibility
- SICStus 4
Source format_to_codes(+Format, +Args, -Codes) is det
Use format/2 to write to a list of character codes.
Source format_to_codes(+Format, +Args, -Codes, ?Tail) is det
Use format/2 to write to a difference list of character codes.
Source write_to_codes(+Term, -Codes)
Codes is a list of character codes produced by write/1 on Term.
Source write_to_codes(+Term, -Codes, ?Tail)
Codes is a difference-list of character codes produced by write/1 on Term.
Source write_term_to_codes(+Term, -Codes, +Options) is det
True when Codes is a string that matches the output of write_term/3 using Options.
Source write_term_to_codes(+Term, -Codes, ?Tail, +Options) is det
True when Codes\Tail is a difference list containing the character codes that matches the output of write_term/3 using Options.
Source read_from_codes(+Codes, -Term) is det
Read Codes into Term.
Compatibility
- The SWI-Prolog version does not require Codes to end in a full-stop.
Source read_term_from_codes(+Codes, -Term, +Options) is det
Read Codes into Term. Options are processed by read_term/3.
Compatibility
- sicstus
Source open_codes_stream(+Codes, -Stream) is det
Open Codes as an input stream.
See also
- open_string/2.
Source with_output_to_codes(:Goal, Codes) is det
Run Goal with as once/1. Output written to current_output is collected in Codes.
Source with_output_to_codes(:Goal, -Codes, ?Tail) is det
Run Goal with as once/1. Output written to current_output is collected in Codes\Tail.
Source with_output_to_codes(:Goal, -Stream, -Codes, ?Tail) is det
As with_output_to_codes/3, but Stream is unified with the temporary stream. This predicate exists for compatibility reasons. In SWI-Prolog, the temporary stream is also available as current_output.