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Merge pull request #2874 from triska/read_from_chars_instantiated

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generalize read_from_chars/2 and read_term_from_chars/3 to allow instantiated Term
This commit is contained in:
Mark Thom
2025-04-10 08:47:21 -07:00
committed by GitHub
parent 20525e5013 ba9fed3eae
commit 8558bd2214
1 changed files with 6 additions and 6 deletions
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12
src/lib/charsio.pl
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@@ -195,7 +195,7 @@ get_single_char(C) :-
; type_error(in_character, C, get_single_char/1)
).
%% read_from_chars(+Chars, -Term).
%% read_from_chars(+Chars, ?Term).
%
% Given a string made of chars which contains a representation of
% a Prolog term, Term is the Prolog term represented. Example:
@@ -206,10 +206,10 @@ get_single_char(C) :-
% ```
read_from_chars(Chars, Term) :-
must_be(chars, Chars),
must_be(var, Term),
'$read_from_chars'(Chars, Term).
'$read_from_chars'(Chars, Term0),
Term = Term0.
%% read_term_from_chars(+Chars, -Term, +Options).
%% read_term_from_chars(+Chars, ?Term, +Options).
%
% Like `read_from_chars`, except the reader is configured according to
% `Options` which are those of `read_term`.
@@ -220,9 +220,9 @@ read_from_chars(Chars, Term) :-
% ```
read_term_from_chars(Chars, Term, Options) :-
must_be(chars, Chars),
must_be(var, Term),
builtins:parse_read_term_options(Options, [Singletons, VariableNames, Variables], read_term_from_chars/3),
'$read_term_from_chars'(Chars, Term, Singletons, Variables, VariableNames).
'$read_term_from_chars'(Chars, Term0, Singletons, Variables, VariableNames),
Term = Term0.
%% write_term_to_chars(+Term, +Options, -Chars).
%