Question

I have a regex call that I need help with.

I haven’t posted my regex, because it is not relevant here. What I want to be able to do is, during the Replace, I also want to modify the ${test} portion by doing a Html.Encode on the entire text that is effecting the regex.

Basically, wrap the entire text that is within the range of the regex with the bold tag, but also Html.Encode the text inbetween the bold tag.

RegexOptions regexOptions = RegexOptions.Compiled | RegexOptions.IgnoreCase; text = Regex.Replace(text, regexBold, @'<b>${text}</b>', regexOptions); 

Answer 1

Heres an implementation of this I’ve used to pick out special replace strings from content and localize them.

        protected string FindAndTranslateIn(string content)         {             return Regex.Replace(content, @'\{\^(.+?);(.+?)?}', new MatchEvaluator(TranslateHandler), RegexOptions.IgnoreCase);         }  public string TranslateHandler(Match m) {     if (m.Success)     {         string key = m.Groups[1].Value;         key = FindAndTranslateIn(key);         string def = string.Empty;         if (m.Groups.Count > 2)         {             def = m.Groups[2].Value;             if(def.Length > 1)             {                 def = FindAndTranslateIn(def);             }         }          if (group == null)         {             return Translate(key, def);         }         else         {             return Translate(key, group, def);         }     }     return string.Empty; } 

From the match evaluator delegate you return everything you want replaced, so where I have returns you would have bold tags and an encode call, mine also supports recursion, so a little over complicated for your needs, but you can just pare down the example for your needs.

This is equivalent to doing an iteration over the collection of matches and doing parts of the replace methods job. It just saves you some code, and you get to use a fancy shmancy delegate.