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-rw-r--r--shell/cmdedit.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/shell/cmdedit.c b/shell/cmdedit.c
index 722a36a..12c78dc 100644
--- a/shell/cmdedit.c
+++ b/shell/cmdedit.c
@@ -44,10 +44,13 @@
#include <signal.h>
-#define MAX_HISTORY 15 /* Maximum length of the linked list for the command line history */
+static const int MAX_HISTORY = 15; /* Maximum length of the linked list for the command line history */
+
+enum {
+ ESC = 27,
+ DEL = 127,
+};
-#define ESC 27
-#define DEL 127
#define member(c, s) ((c) ? ((char *)strchr ((s), (c)) != (char *)NULL) : 0)
#define whitespace(c) (((c) == ' ') || ((c) == '\t'))