@@ -1025,7 +1025,7 @@ tok_nextc(struct tok_state *tok)
                 else {
                     tok->done = E_OK;
                     tok->inp = strchr(tok->buf, '\0');
-                    done = tok->inp[-1] == '\n';
+                    done = tok->inp == tok->buf || tok->inp[-1] == '\n';
                 }
             }
             else {
Original file line number	Diff line number	Diff line change
@@ -1025,7 +1025,7 @@ tok_nextc(struct tok_state *tok)
1025	1025	else {
1026	1026	tok->done = E_OK;
1027	1027	tok->inp = strchr(tok->buf, '\0');
1028		- done = tok->inp[-1] == '\n';
	1028	+ done = tok->inp == tok->buf \|\| tok->inp[-1] == '\n';
1029	1029	}
1030	1030	}
1031	1031	else {