add readline.clear_history()

3 files changed, 63 insertions, 1 deletions

diff --git a/core/src/xmake/machine.c b/core/src/xmake/machine.c
index 5a8a7b4b8..50da4ea7c 100644
--- a/core/src/xmake/machine.c
+++ b/core/src/xmake/machine.c
@@ -108,6 +108,7 @@ tb_int_t xm_sandbox_interactive(lua_State* lua);
 tb_int_t xm_readline_readline(lua_State* lua);
 tb_int_t xm_readline_get_history_state(lua_State* lua);
 tb_int_t xm_readline_add_history(lua_State* lua);
+tb_int_t xm_readline_clear_history(lua_State* lua);
 #endif
 
 /* //////////////////////////////////////////////////////////////////////////////////////
@@ -187,6 +188,7 @@ static luaL_Reg const g_readline_functions[] =
     { "readline",          xm_readline_readline          }
 ,   { "get_history_state", xm_readline_get_history_state }
 ,   { "add_history",       xm_readline_add_history       }
+,   { "clear_history",     xm_readline_clear_history     }
 ,   { tb_null,             tb_null                       }
 };
 #endif
diff --git a/core/src/xmake/makefile b/core/src/xmake/makefile
index 930f58df6..7f800d2d7 100644
--- a/core/src/xmake/makefile
+++ b/core/src/xmake/makefile
@@ -52,7 +52,8 @@ xmake_C_FILES 			+= \
 						sandbox/interactive \
 						readline/readline \
 						readline/get_history_state \
-						readline/add_history
+						readline/add_history \
+						readline/clear_history
 						
 
 # flags
diff --git a/core/src/xmake/readline/clear_history.c b/core/src/xmake/readline/clear_history.c
new file mode 100644
index 000000000..fbab27d5b
--- /dev/null
+++ b/core/src/xmake/readline/clear_history.c
@@ -0,0 +1,59 @@
+/*!The Make-like Build Utility based on Lua
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Copyright (C) 2015 - 2017, TBOOX Open Source Group.
+ *
+ * @author      TitanSnow
+ * @file        clear_history.c
+ *
+ */
+
+#ifdef XM_CONFIG_API_HAVE_READLINE
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * trace
+ */
+#define TB_TRACE_MODULE_NAME                "clear_history"
+#define TB_TRACE_MODULE_DEBUG               (0)
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * includes
+ */
+#include "prefix.h"
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * implementation
+ */
+
+// clear_history wrapper
+tb_int_t xm_readline_clear_history(lua_State* lua)
+{
+    // check
+    tb_assert_and_check_return_val(lua, 0);
+
+    // call clear_history
+    clear_history();
+
+    // pushnil
+    lua_pushnil(lua);
+
+    // ok
+    return 1;
+}
+
+#endif