C # implement the word count function of the same algorithm as Sina Weibo and take it away.

Remaining word count on Weibo official SinaAlgorithm.

The text parameter is the body content.

Isoutofrange is used to determine whether the text overflows to control the available status of the send button.

 1   Public   Static   String Getcontentlengthstring ( String Text, Out   Bool  Isoutofrange)  2   {  3 TEXT = Text. Trim ();  4 TEXT = RegEx. Replace (text, "  \ R \ n  " , "  \ N  "  );  5       Int Textlength = 0  ;  6       If (Text. length> 0  )  7  {  8           Int Min = 41 , Max = 140 , Urllen = 20  ;  9           VaR N = Text;  10           VaR R = RegEx. Matches (text, @"  Http: // [a-zA-Z0-9] + (\. [a-zA-Z0-9] +) + ([-A-Z0-9a-z _ $. +! * ()/\\\,:;@&= ?~ # %] *) * "  );  11           VaR Total = 0  ;  12           For ( Int M = 0 , P = R. Count; m <p; m ++ )  13   {  14               VaR Url = R [M]. value; 15               VaR Bytelen = URL. Length + RegEx. Matches (URL, @"  [^ \ X00-\ X80]  "  ). Count;  16               If (RegEx. ismatch (URL, @"  ^ Http://t.cn)  "  ))  17   {  18                   Continue ;  19   }  20               Else   If (RegEx. ismatch (URL, @"  ^ (Http: \/) + (weibo.com | weibo.cn)  "  ))  21   {  22 Total + = bytelen <= min? Bytelen: (bytelen <= max? Urllen: (bytelen-MAX + Urllen )); 23   }  24               Else  25   {  26 Total + = bytelen <= max? Urllen: (bytelen-MAX + Urllen );  27   }  28 N = n. Replace (URL, ""  );  29   } 30 Textlength = ( Int ) Math. Ceiling (total + N. Length + RegEx. Matches (n, @"  [^ \ X00-\ X80]  " ). Count )/ 2.00d  );  31   }  32   33       Int Textremainlength = 140 - Textlength; 34       String Template = String  . Empty;  35       If (Textremainlength> = 0  )  36   {  37 Template = "  You can also enter {0: N0} characters.  "  ;  38 Isoutofrange = False  ;  39   }  40       Else  41   {  42 Template = "  It has exceeded {0: N0} characters  "  ;  43   44 Isoutofrange = True ;  45   }  46       Return   String  . Format (template, math. Abs (textremainlength ));  47 }

Execution result