miduo_client/Assets/ManagedResources/~Lua/UITools/StringHelper.lua

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This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

---
--- Generated by EmmyLua(https://github.com/EmmyLua)
--- DateTime: 2018/5/7 0007 上午 10:53
--- 字符串帮助器
--矫正名字显示长度
function FixNameShow(playerName)
local trueLen = SubStringGetTotalIndex(playerName)
if trueLen>6 then
playerName = SubStringUTF8(playerName,1,5)
playerName = playerName..'...'
end
return playerName
end
--截取中英混合的UTF8字符串endIndex可缺省
function SubStringUTF8(str, startIndex, endIndex)
if startIndex < 0 then
startIndex = SubStringGetTotalIndex(str) + startIndex + 1;
end
if endIndex ~= nil and endIndex < 0 then
endIndex = SubStringGetTotalIndex(str) + endIndex + 1;
end
if endIndex == nil then
return string.sub(str, SubStringGetTrueIndex(str, startIndex));
else
return string.sub(str, SubStringGetTrueIndex(str, startIndex), SubStringGetTrueIndex(str, endIndex + 1) - 1);
end
end
--获取中英混合UTF8字符串的真实字符数量
function SubStringGetTotalIndex(str)
local curIndex = 0;
local i = 1;
local lastCount = 1;
repeat
lastCount = SubStringGetByteCount(str, i)
i = i + lastCount;
curIndex = curIndex + 1;
until(lastCount == 0);
return curIndex - 1;
end
function SubStringGetTrueIndex(str, index)
local curIndex = 0;
local i = 1;
local lastCount = 1;
repeat
lastCount = SubStringGetByteCount(str, i)
i = i + lastCount;
curIndex = curIndex + 1;
until(curIndex >= index);
return i - lastCount;
end
--返回当前字符实际占用的字符数
function SubStringGetByteCount(str, index)
local curByte = string.byte(str, index)
local byteCount = 1;
if curByte == nil then
byteCount = 0
elseif curByte > 0 and curByte <= 127 then
byteCount = 1
elseif curByte>=192 and curByte<=223 then
byteCount = 2
elseif curByte>=224 and curByte<=239 then
byteCount = 3
elseif curByte>=240 and curByte<=247 then
byteCount = 4
end
return byteCount;
end