--[[
Tencent is pleased to support the open source community by making BK-CI 蓝鲸持续集成平台 available.

Copyright (C) 2019 Tencent.  All rights reserved.

BK-CI 蓝鲸持续集成平台 is licensed under the MIT license.

A copy of the MIT License is included in this file.


Terms of the MIT License:
---------------------------------------------------
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
]]

local _M = {}

--[[判断str是否以substr结尾。是返回true，否返回false，失败返回失败信息]]
function _M:endswith(str, substr)
    if str == nil or substr == nil then
        return nil, "the string or the sub-string parameter is nil"
    end
    local str_tmp = string.reverse(str)
    local substr_tmp = string.reverse(substr)
    if string.find(str_tmp, substr_tmp) ~= 1 then
        return false
    else
        return true
    end
end

--[[判断str是否以substr开始。是返回true，否返回false，失败返回失败信息]]
function _M:startswith(str, substr)
    return string.sub(str, 1, string.len(substr)) == substr
end

function _M:split (str, sep)
    if sep == nil then
        sep = "%s"
    end
    local t = {}
    for str in string.gmatch(str, "([^" .. sep .. "]+)") do
        table.insert(t, str)
    end
    return t
end

function _M:getValue(var)
    local varType = type(var)
    if varType == "table" then
        return var[1]
    end
    return var
end

return _M
