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/*!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 - 2018, TBOOX Open Source Group.
*
* @author ruki
* @file startswith.c
*
*/
/* //////////////////////////////////////////////////////////////////////////////////////
* trace
*/
#define TB_TRACE_MODULE_NAME "startswith"
#define TB_TRACE_MODULE_DEBUG (0)
/* //////////////////////////////////////////////////////////////////////////////////////
* includes
*/
#include "prefix.h"
/* //////////////////////////////////////////////////////////////////////////////////////
* implementation
*/
tb_int_t xm_string_startswith(lua_State* lua)
{
// check
tb_assert_and_check_return_val(lua, 0);
// get the string and prefix
size_t prefix_size = 0;
tb_char_t const* string = luaL_checkstring(lua, 1);
tb_char_t const* prefix = luaL_checklstring(lua, 2, &prefix_size);
tb_check_return_val(string && prefix, 0);
// string:startswith(prefix)?
lua_pushboolean(lua, !tb_strncmp(string, prefix, (tb_size_t)prefix_size));
// ok
return 1;
}
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