Store most recent repl value in '_'

Just like python, the top-level '_' variable holds the most recently printed value. Signed-off-by: Keith Packard <keithp@keithp.com>
keith-packard · Dec 15, 2022 · f4c4718 · f4c4718
1 parent e80f0b5
commit f4c4718
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diff --git a/snek-base.builtin b/snek-base.builtin
@@ -22,3 +22,4 @@ chr, 1
 abs, 1
 math.sqrt, 1
 None, -2, SNEK_NULL
+_, -2, 1
diff --git a/snek-gram.ll b/snek-gram.ll
@@ -23,6 +23,7 @@ command		: @{ snek_print_val = snek_interactive; }@ stat
 				if (snek_abort)
 					return parse_return_error;
 				if (snek_print_val && !snek_is_null(p)) {
+					snek_id_store(SNEK_BUILTIN__, p);
 					snek_poly_print(stdout, p, 'r');
 					putchar('\n');
 				}