ruby191-readline.c.patch

Index: ext/readline/readline.c
===================================================================
--- ext/readline/readline.c     (revision 23097)
+++ ext/readline/readline.c     (working copy)
@@ -929,7 +929,24 @@
 #endif /* HAVE_RL_FILENAME_QUOTE_CHARACTERS */
 }

+/*
+ * call-seq:
+ *   Readline.refresh_line -> nil
+ *
+ * Clear the current input line.
+ *
+ * Raises SecurityError exception if $SAFE is 4.
+ */
 static VALUE
+readline_s_refresh_line(self)
+{
+ rb_secure(4);
+ rl_refresh_line(0, 0);
+ return Qnil;
+}
+
+
+static VALUE
 hist_to_s(VALUE self)
 {
     return rb_str_new_cstr("HISTORY");
@@ -1230,6 +1247,8 @@
                               readline_s_set_filename_quote_characters, 1);
     rb_define_singleton_method(mReadline, "filename_quote_characters",
                               readline_s_get_filename_quote_characters, 0);
+    rb_define_singleton_method(mReadline, "refresh_line",
+                              readline_s_refresh_line, 0);

     history = rb_obj_alloc(rb_cObject);
     rb_extend_object(history, rb_mEnumerable);