Lua utf8 문자열 길이 및 문자열 캡처 가져오기...대신

 
  
 ---   utf8             
  
 -- @param str 
  
 -- @return number 
  
 function utfstrlen(str) 
  
 local len = #str; 
  
 local left = len; 
  
 local cnt = 0; 
  
 local arr={0,0xc0,0xe0,0xf0,0xf8,0xfc}; 
  
 while left ~= 0 do 
  
 local tmp=string.byte(str,-left); 
  
 local i=#arr; 
  
 while arr[i] do 
  
 if tmp>=arr[i] then left=left-i;break;end 
  
 i=i-1; 
  
 end 
  
 cnt=cnt+1; 
  
 end 
  
 return cnt; 
  
 end 
  
 
 

 
  
 --@brief      ，  “...”     
  
 --@param sName:        
  
 --@return nMaxCount，     ,    2    
  
 --@param nShowCount：       ，    2   ,    
  
 --@note             ：        ，   “...”   
   
  
function GetShortName(sName,nMaxCount,nShowCount)
     if sName == nil or nMaxCount == nil then
         return
     end
     local sStr = sName
     local tCode = {}
     local tName = {}
     local nLenInByte = #sStr
     local nWidth = 0
     if nShowCount == nil then
        nShowCount = nMaxCount - 3
     end
     for i=1,nLenInByte do
         local curByte = string.byte(sStr, i)
         local byteCount = 0;
         if 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
         local char = nil
         if byteCount > 0 then
             char = string.sub(sStr, i, i+byteCount-1)
             i = i + byteCount -1
         end
         if byteCount == 1 then
             nWidth = nWidth + 1
             table.insert(tName,char)
             table.insert(tCode,1)
             
         elseif byteCount > 1 then
             nWidth = nWidth + 2
             table.insert(tName,char)
             table.insert(tCode,2)
         end
     end
     
     if nWidth > nMaxCount then
         local _sN = ""
         local _len = 0
         for i=1,#tName do
             _sN = _sN .. tName[i]
             _len = _len + tCode[i]
             if _len >= nShowCount then
                 break
             end
         end
         sName = _sN .. "..."
     end
     return sName
 end