Pass RegexMatch to a function?

[Gerald via Digitalmars-d-learn]

I have a RegexMatch that I want to pass to a function that takes 
the match and replaces various tokens in a string with the match 
and/or individual groups of the match. I'm struggling to figure 
out how to pass a RegexMatch to a function, right now I have code 
like the follows:

RegexMatch regexMatch = matchAll(urlMatch.match, 
regex(tr.pattern, tr.caseless?"i":""));
string command = replaceMatchTokens(urlMatch.match, regexMatch);

...

string replaceMatchTokens(string tokenizedText, ref RegexMatch 
match) {
     string result = tokenizedText.replace("$0", match.match);

     int i = 0;
     foreach(group; match.captures) {
         result = result.replace("$" ~ to!string(i), group);
         i++;
     }
     return result;
}

When I try to compile this, it fails with the follow on the line 
where replaceMatchTokens is declared:

Error: struct std.regex.RegexMatch(R, alias Engine = 
ThompsonMatcher) if (isSomeString!R) is used as a type

I've also tried declaring it as follows:

string replaceMatchTokens(string tokenizedText, ref 
RegexMatch!(string, ThompsonMatcher) match) {

With the following errors:

source/gx/terminix/terminal/terminal.d(1273,28): Error: struct 
std.regex.RegexMatch(R, alias Engine = ThompsonMatcher) if 
(isSomeString!R) is used as a type
source/gx/terminix/terminal/terminal.d(2701,54): Error: template 
std.regex.match cannot deduce function from argument types 
!()(RegexMatch!(string, ThompsonMatcher)), candidates are:
/usr/include/dlang/dmd/std/regex/package.d(777,13):        
std.regex.match(R, RegEx)(R input, RegEx re) if (isSomeString!R 
&& is(RegEx == Regex!(BasicElementOf!R)))
/usr/include/dlang/dmd/std/regex/package.d(785,13):        
std.regex.match(R, String)(R input, String re) if (isSomeString!R 
&& isSomeString!String)
/usr/include/dlang/dmd/std/regex/package.d(792,13):        
std.regex.match(R, RegEx)(R input, RegEx re) if (isSomeString!R 
&& is(RegEx == StaticRegex!(BasicElementOf!R)))