string_fill

///@func    string_fill(string, template, str1, str2, ...
///@desc    Replaces template substrings (e.g. "%%"), with given strings, thus 'completing' the string
///         Example:    greeting = "%%, my name is %%!";
///                     greeting = string_fill(greeting, "%%", "Hi", "Mike");
///
///         Result:     "Hi, my name is Mike"
///
///@param string
///@param template
///@param str1
///@param str2
///@param ...

var _string = argument[0];
var _template = argument[1];

for (var _i = 2; _i < argument_count; _i++)
    _string = string_replace(_string, _template, string(argument[_i]));

return _string;