regex - Convert Dash-Separated String to camelCase via C# -

i have large xml file contain tag names implement dash-separated naming convention. how can use c# convert tag names camel case naming convention?

the rules are: 1. convert characters lower case 2. capitalize first character after each dash 3. remove dashes

example before conversion

<foo-bar>  <a-b-c></a-b-c> </foo-bar> 

after conversion

<foobar>  <abc></abc> </foobar> 

here's code example works, it's slow process - i'm thinking there better way accomplish goal.

string convertdashtocamelcase(string input) {     input = input.tolower();     char[] ca = input.tochararray();     stringbuilder sb = new stringbuilder();      for(int = 0; < ca.length; i++)     {         if(ca[i] == '-')         {             string t = ca[i + 1].tostring().toupper();             sb.append(t);             i++;         }         else         {             sb.append(ca[i].tostring());         }     }      return sb.tostring(); } 

the reason original code slow because you're calling tostring on place unnecessarily. there's no need that. there's no need intermediate array of char. following should faster, , faster version uses string.split, too.

string convertdashtocamelcase(string input) {     stringbuilder sb = new stringbuilder();     bool caseflag = false;     (int = 0; < input.length; ++i)     {         char c = input[i];         if (c == '-')         {             caseflag = true;         }         else if (caseflag)         {             sb.append(char.toupper(c));             caseflag = false;         }         else         {             sb.append(char.tolower(c));         }     }     return sb.tostring(); } 

i'm not going claim above fastest possible. in fact, there several obvious optimizations save time. above clean , clear: easy understand.

the key caseflag, use indicate next character copied should set upper case. note don't automatically convert entire string lower case. there's no reason to, since you'll looking @ every character anyway , can appropriate conversion @ time.

the idea here code doesn't more work absolutely has to.