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clean up stream error handling, add get_byte/{1,2}

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This commit is contained in:
Mark Thom
2020-05-05 16:09:17 -06:00
parent 9a63b1751b
commit bfced59949
6 changed files with 168 additions and 43 deletions
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15
src/prolog/lib/builtins.pl
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@@ -49,9 +49,10 @@ user:term_expansion((:- op(Pred, Spec, [Op | OtherOps])), OpResults) :-
current_prolog_flag/2, expand_goal/2,
expand_term/2, fail/0, false/0, findall/3,
findall/4, flush_output/0, flush_output/1,
get_char/1, halt/0, max_arity/1, number_chars/2,
number_codes/2, once/1, op/3, open/3, open/4,
read_term/2, read_term/3, repeat/0, retract/1,
get_byte/1, get_byte/2, get_char/1, halt/0,
max_arity/1, number_chars/2, number_codes/2,
once/1, op/3, open/3, open/4, read_term/2,
read_term/3, repeat/0, retract/1,
set_prolog_flag/2, set_input/1, set_output/1,
setof/3, sub_atom/5, subsumes_term/2,
term_variables/2, throw/1, true/0,
@@ -1190,3 +1191,11 @@ flush_output(S) :-
flush_output :-
current_output(S),
'$flush_output'(S).
get_byte(S, B) :-
'$get_byte'(S, B).
get_byte(S) :-
current_input(S),
'$get_byte'(S, B).