add tab completion + help function

1 files changed, 17 insertions, 0 deletions

diff --git a/client/cmd.cpp b/client/cmd.cpp
index 99a4dd6..0a73dad 100644
--- a/client/cmd.cpp
+++ b/client/cmd.cpp
@@ -1,3 +1,4 @@
+#include <cstdio>
 #include <cstdlib>
 #include <string.h>
 
@@ -13,3 +14,19 @@ void cmd_test(char*) {
 	i2c_send(0x39, (char*) data, strlen(data));
 }
 
+void cmd_help(char*) {
+  printf("List of available commands:\n");
+  for (size_t i = 0; i < cmds_length; i++) {
+    struct cmd cmd = cmds[i];
+    printf("  %-*s", 10, cmd.name);
+    if (cmd.info != NULL)
+      printf("  %s", cmd.info);
+    printf("\n");
+  }
+
+  printf(
+    "\n"
+    "You can also use the TAB key to autocomplete commands\n"
+  );
+}
+