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Add Machine::run_input_once() which reads one goal from user input and runs it

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This commit is contained in:
Nicolas Luck
2023-07-11 14:24:30 +02:00
parent 95b31146b5
commit 112d398175
2 changed files with 7 additions and 0 deletions
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4
src/machine/mod.rs
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@@ -307,6 +307,10 @@ impl Machine {
self.run_module_predicate(atom!("$toplevel"), (atom!("$repl"), 1)); self.run_module_predicate(atom!("$toplevel"), (atom!("$repl"), 1));
} }
pub fn run_input_once(&mut self) {
self.run_module_predicate(atom!("$toplevel"), (atom!("run_input_once"), 0));
}
pub fn set_user_input(&mut self, input: String) { pub fn set_user_input(&mut self, input: String) {
self.user_input = Stream::from_owned_string(input, &mut self.machine_st.arena); self.user_input = Stream::from_owned_string(input, &mut self.machine_st.arena);
} }

3
src/toplevel.pl
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@@ -430,3 +430,6 @@ print_exception_with_check(E) :-
% is expected to be printed instead. % is expected to be printed instead.
; print_exception(E) ; print_exception(E)
). ).
run_input_once :-
catch(read_and_match, E, print_exception(E)).