Allow backspace in console

90d94b88 · Eric Duminil · b912c9e4 · 90d94b88
Commit 90d94b88 authored 4 years ago by Eric Duminil
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with 7 additions and 1 deletion
+7 -1
--- a/ampel-firmware/sensor_commands.cpp
+++ b/ampel-firmware/sensor_commands.cpp
@@ -92,10 +92,16 @@ namespace sensor_commands {
      break;
    case '\r': // discard carriage return
      break;
+    case '\b': // backspace
+      if (input_pos > 0) {
+        input_pos--;
+      }
+      break;
    default:
      // keep adding if not full ... allow for terminating null byte
-      if (input_pos < (MAX_COMMAND_SIZE - 1))
+      if (input_pos < (MAX_COMMAND_SIZE - 1)) {
        input_line[input_pos++] = input_byte;
+      }
      break;
    }
  }