altos/scheme: Rename to 'scheme', clean up build

Constant block is now built in a subdir to avoid messing up source
directory.

Renamed to ao_scheme to reflect language target.

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

1 files changed, 36 insertions, 0 deletions

diff --git a/src/scheme/ao_scheme_rep.c b/src/scheme/ao_scheme_rep.c
new file mode 100644
index 00000000..9dbce5f2
--- /dev/null
+++ b/src/scheme/ao_scheme_rep.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright © 2016 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#include "ao_scheme.h"
+
+ao_poly
+ao_scheme_read_eval_print(void)
+{
+	ao_poly	in, out = AO_SCHEME_NIL;
+	for(;;) {
+		in = ao_scheme_read();
+		if (in == _ao_scheme_atom_eof)
+			break;
+		out = ao_scheme_eval(in);
+		if (ao_scheme_exception) {
+			if (ao_scheme_exception & AO_SCHEME_EXIT)
+				break;
+			ao_scheme_exception = 0;
+		} else {
+			ao_scheme_poly_write(out);
+			putchar ('\n');
+		}
+	}
+	return out;
+}