iris

commit 03ece0a99e28d8ccfe582569ded57988fbae8515
parent 17c7caca5822e8c7e266b4a1717109ca5989714d
Author: sin <sin@2f30.org>
Date:   Mon, 19 May 2014 18:13:33 +0100

Make iris work non-interactively as well

Diffstat:
M
repl.c
 | 
14
++++++++++----

1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/repl.c b/repl.c
@@ -1,20 +1,26 @@
 /* See LICENSE file for copyright and license details. */
 #include <stdbool.h>
 #include <stdio.h>
+#include <unistd.h>
 #include "parser.h"
 
 int
 main(void)
 {
+	int interactive = isatty(0);
+
 	init();
-	puts("Welcome to iris - use ^C to quit");
+	if (interactive)
+		puts("Welcome to iris - use ^C to quit");
 	do {
-		printf("> ");
-		fflush(stdout);
+		if (interactive) {
+			printf("> ");
+			fflush(stdout);
+		}
 		print(eval(sexpression(stdin)));
 		putchar('\n');
 		fflush(stdout);
-	} while (1);
+	} while (!feof(stdin));
 	/* not reachable */
 	return 0;
 }