Patch from vodz to implement ^L (clear screen)

git-svn-id: svn://busybox.net/trunk/busybox@3935 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 10 insertions, 1 deletions

diff --git a/shell/cmdedit.c b/shell/cmdedit.c
index b90891587..d4d6264d0 100644
--- a/shell/cmdedit.c
+++ b/shell/cmdedit.c
@@ -1263,6 +1263,16 @@ prepare_to_die:
                         input_tab(&lastWasTab);
 #endif
                         break;
+                case 12:
+                        /* Control-l -- clear screen
+                         * if the len=0 and no chars in edit line */
+                        if (len == 0) {
+                                printf("\033[H\033[J");
+                                put_prompt();
+                        } else {
+                                beep();
+                        }
+                        break;
                 case 14:
                         /* Control-n -- Get next command in history */
                         if (hp && hp->n && hp->n->s) {
@@ -1288,7 +1298,6 @@ prepare_to_die:
                                 redraw(cmdedit_y, len -= cursor);
                         }
                         break;
-
                 case ESC:{
                         /* escape sequence follows */
                         if (safe_read(0, &c, 1) < 1)