altos/scheme: Rework display/write code

Unify output functions and add bool to switch between write and
display mode. Make that only affect strings (as per r⁷rs).

Use print recursion detection in frame and stack code, eliminating
PRINT flags in type field.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/scheme/ao_scheme_rep.c b/src/scheme/ao_scheme_rep.c
index 5b94d940..b35ba5b8 100644
--- a/src/scheme/ao_scheme_rep.c
+++ b/src/scheme/ao_scheme_rep.c
@@ -30,7 +30,7 @@ ao_scheme_read_eval_print(void)
 				break;
 			ao_scheme_exception = 0;
 		} else {
-			ao_scheme_poly_write(out);
+			ao_scheme_poly_write(out, true);
 			putchar ('\n');
 		}
 	}