diff --git a/source/io/ctrl.c b/source/io/ctrl.c
index cea9ca6..0b8d337 100644
--- a/source/io/ctrl.c
+++ b/source/io/ctrl.c
@@ -144,6 +144,10 @@ void dispatch_update(struct InputAxis *axis, struct InputRecord *rec)
     axis->data = rec->data;
 }
 
+bool is_alphanumeric(char c) {
+    return c >=32 and c <= 126;
+}
+
 bool read_input_buf(struct Controller *ctrl)
 {
     for (size_t i = 0; i < ctrl->pending_buf.len; i++) {
@@ -153,7 +157,7 @@ bool read_input_buf(struct Controller *ctrl)
         axis->is_down = false;
     }
     ctrl->pending_buf.len = 0;
-    
+
     for (size_t i = 0; i < ctrl->buf.len; i++) {
         struct InputRecord *rec = &ctrl->buf.recs[i];
 
@@ -187,6 +191,11 @@ bool CtrlPoll(struct Controller *ctrl, struct InputThreadHandle *hand)
     return true;
 }
 
+bool CtrlInputString(struct Controller *ctrl, size_t n, char *buf)
+{
+    
+}
+
 /*int main() 
 {
     struct Controller ctrl;
diff --git a/source/io/ctrl.h b/source/io/ctrl.h
index ab6f2e3..539748d 100644
--- a/source/io/ctrl.h
+++ b/source/io/ctrl.h
@@ -46,17 +46,15 @@ struct ctrl_axis_vec {
 struct Controller {
     struct InputBuffer buf;
     
-    struct InputAxis *pending_axes[IO_BUF_SIZE];
-    char string_input[IO_BUF_SIZE];
-    
-    u8f pending_axes_len;
-    u8f string_input_len;
+    struct {
+        struct InputAxis *axes[IO_BUF_SIZE];
+        u8f len;
+    } pending_buf;
 
     struct ctrl_axis_vec axis_vec;
     struct ctrl_dict codes;
     struct ctrl_dict binds;
 };
-size_t a = sizeof(struct Controller);
 
 bool CreateCtrl(struct Controller *ctrl);