implement canonial terminal back delete (#1712)

2022-03-21 12:58:10 +10:00
parent 04c719b180
commit 3732d7623f
1 changed files with 5 additions and 3 deletions
@@ -1650,7 +1650,7 @@ int cliExecLine(char * line)
 #define CHAR_LF         0x0A
 #define CHAR_NEWPAGE    0x0C
 #define CHAR_CR         0x0D
-#define CHAR_BACKSPACE  0xFF
+#define CHAR_DEL        0x7F

 void cliTask(void * pdata)
 {
@@ -1684,10 +1684,12 @@ void cliTask(void * pdata)
      cliPrompt();
      break;

-    case CHAR_BACKSPACE:
+    case CHAR_DEL:
      if (pos) {
        line[--pos] = '\0';
-        cliSerialPutc(c);
+        cliSerialPutc('\010');
+        cliSerialPutc(' ');
+        cliSerialPutc('\010');
      }
      break;