std.regex.replaceFirst  - multiple declarations
				Function replaceFirst
Construct a new string from input by replacing the first match with
    a string generated from it according to the format specifier.
						
				R replaceFirst(R, C, RegEx)
				(
				
				  R input,
				
				  RegEx re,
				
				  const(C)[] format
				
				)
				
				if (isSomeString!R && is(C : dchar) && isRegexFor!(RegEx, R));
						
					
				To replace all matches use replaceAll.
Parameters
| Name | Description | 
|---|---|
| input | string to search | 
| re | compiled regular expression to use | 
| format | format string to generate replacements from, see the format string. | 
Returns
A string of the same type with the first match (if any) replaced. If no match is found returns the input string itself.
Example
writeln(replaceFirst("noon", regex("n"), "[$&]")); // "[n]oon"
Function replaceFirst
This is a general replacement tool that construct a new string by replacing
    matches of pattern re in the input. Unlike the other overload
    there is no format string instead captures are passed to
    to a user-defined functor fun that returns a new string
    to use as replacement.
						
				R replaceFirst(alias fun, R, RegEx)
				(
				
				  R input,
				
				  RegEx re
				
				)
				
				if (isSomeString!R && isRegexFor!(RegEx, R));
						
					
				This version replaces the first match in input,
    see replaceAll to replace the all of the matches.
Returns
A new string of the same type as input with all matches
    replaced by return values of fun. If no matches found
    returns the input itself.
Example
import stdAuthors
Dmitry Olshansky,
    API and utility constructs are modeled after the original std
  by Walter Bright and Andrei Alexandrescu.