Change the default command prompts

third_party/quickjs/libregexp.c

@@ -510,6 +510,9 @@ int lre_parse_escape(const uint8_t **pp, int allow_utf16)
     case 'f':
         c = '\f';
         break;
+    case 'e':
+        c = '\e'; /* [jart] love this */
+        break;
     case 'n':
         c = '\n';
         break;

third_party/quickjs/repl.js

@@ -111,9 +111,9 @@ import * as os from "os";
     var plen = 0;
     var ps1;
     if (config_numcalc)
-        ps1 = "> ";
+        ps1 = ">: ";
     else
-        ps1 = "qjs > ";
+        ps1 = "qjs >: ";
     var ps2 = "  ... ";
     var utf8 = true;
     var show_time = false;
@@ -547,6 +547,11 @@ import * as os from "os";
         this_fun = kill_region;
     }
 
+    function clear_screen() {
+        std.puts("\e[H\e[2J");
+        return -1;
+    }
+
     function kill_line() {
         kill_region(cursor_pos, cmd.length, 1);
     }
@@ -743,6 +748,7 @@ import * as os from "os";
         "\x09":     completion,             /* ^I - history-search-backward */
         "\x0a":     accept_line,            /* ^J - newline */
         "\x0b":     kill_line,              /* ^K - delete to end of line */
+        "\x0c":     clear_screen,           /* ^L - clear screen */
         "\x0d":     accept_line,            /* ^M - enter */
         "\x0e":     next_history,           /* ^N - down */
         "\x10":     previous_history,       /* ^P - up */