migrate to gitlab

1 files changed, 58 insertions, 0 deletions

diff --git a/interactive.c b/interactive.c
new file mode 100644
index 0000000..7460327
--- /dev/null
+++ b/interactive.c
@@ -0,0 +1,58 @@
+/*
+ * UNG's Not GNU
+ *
+ * Copyright (c) 2011-2017, Jakob Kaivo <jkk@ung.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include "sh.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+static char *sh_getline(char **cmdline)
+{
+	char *prompt = getenv(*cmdline ? "PS2" : "PS1");
+	/* wordexpand prompt */
+	fprintf(stderr, "%s", prompt);
+
+	size_t n = 0;
+	getline(cmdline, &n, stdin);
+	return *cmdline;
+}
+
+int sh_interactive(void)
+{
+	while (!feof(stdin)) {
+		char *cmdline = NULL;
+		sh_getline(&cmdline);
+
+		if (cmdline == NULL) {
+			break;
+		}
+
+		struct command *command = sh_parse(cmdline);
+		while (command == NULL) {
+			/* append more text */
+			/* attempt parsing again */
+		}
+
+		sh_execute(command);
+
+		free(cmdline);
+		sh_freecmd(command);
+	}
+
+	return 0;
+}