Question

I am so annoyed. Typically I like replace acting as it does in C# but is there a C++ styled replace where it only replaces one letter at a time or the X amount I specify?

Answer 1

No there is not a Replace method in the BCL which will replace only a single instance of the character. The two main Replace methods will replace all occurances. However, it’s not terribly difficult to write a version that does a single character replacement.

public static string ReplaceSingle(this string source, char toReplace, char newChar) {   var index = source.IndexOf(toReplace);   if ( index < 0 ) {     return source;   }   var builder = new StringBuilder();   for( var i = 0; i < source.Length; i++ ) {     if ( i == index ) {       builder.Append(newChar);     } else {       builder.Append(source[i]);     }   }   return builder.ToString(); }