Fix #196: ignore CAPS-LOCK & NUM-LOCK sequences on input.

cmd.h

@@ -108,6 +108,7 @@
 #define EC_B_COMPLETE 18
 #define EC_LITERAL 19
 
+#define EC_NOACTION 101
 #define EC_UINVALID 102
 
 /* Flags for editchar() */

cmdbuf.c

@@ -690,6 +690,8 @@ cmd_edit(c)
  case EC_EXPAND:
  return (cmd_complete(action));
 #endif
+ case EC_NOACTION:
+ return (CC_OK);
  default:
  not_in_completion();
  return (CC_PASS);
@@ -1001,10 +1003,7 @@ cmd_char(c)
  /*
  * Insert the char into the command buffer.
  */
- action = cmd_ichar(c);
- if (action != CC_OK)
- return (action);
- return (CC_OK);
+ return (cmd_ichar(c));
 }
 
 /*

pckeys.h

@@ -31,7 +31,9 @@
  */
 #define PCK_SHIFT_TAB '\017'
 #define PCK_ALT_E '\022'
+#define PCK_CAPS_LOCK '\072'
 #define PCK_F1 '\073'
+#define PCK_NUM_LOCK '\105'
 #define PCK_HOME '\107'
 #define PCK_UP '\110'
 #define PCK_PAGEUP '\111'

screen.c

@@ -838,6 +838,8 @@ static char kecmdtable[] = {
  '\17',0, EC_B_COMPLETE, /* BACKTAB (?) */
  '\340',PCK_SHIFT_TAB,0, EC_B_COMPLETE, /* BACKTAB */
  '\14',0, EC_EXPAND, /* CTRL-L */
+ '\340',PCK_CAPS_LOCK,0, EC_NOACTION, /* CAPS LOCK */
+ '\340',PCK_NUM_LOCK,0, EC_NOACTION, /* NUM LOCK */
  0 /* Extra byte to terminate; subtracted from size, below */
 };
 static int sz_kecmdtable = sizeof(kecmdtable) -1;
@@ -858,6 +860,8 @@ static char kfcmdtable[] =
  '\340',PCK_END,0, A_GOEND, /* END */
  '\340',PCK_F1,0, A_HELP, /* F1 */
  '\340',PCK_ALT_E,0, A_EXAMINE, /* Alt-E */
+ '\340',PCK_CAPS_LOCK,0, A_NOACTION, /* CAPS LOCK */
+ '\340',PCK_NUM_LOCK,0, A_NOACTION, /* NUM LOCK */
  0
 };
 static int sz_kfcmdtable = sizeof(kfcmdtable) - 1;