getting option adding working

src/CMakeLists.txt

@@ -1,3 +1,3 @@
-add_executable(cxxopts main.cpp)
+add_executable(cxxopts main.cpp cxxopts.cpp)
 
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall")

src/cxxopts.hpp

@@ -1,10 +1,48 @@
 #include <regex>
+#include <set>
 
 namespace cxxopts
 {
-  std::basic_regex<char> option_matcher
-    ("--([a-zA-Z][-_a-zA-Z]+)(=(.*))?|-([a-zA-Z]+)");
+  extern std::basic_regex<char> option_matcher;
 
-  std::basic_regex<char> option_specifier
-    ("(([a-zA-Z]),)?([a-zA-Z][-_a-zA-Z]+)");
+  extern std::basic_regex<char> option_specifier;
+
+  class OptionAdder;
+
+  class Options
+  {
+    public:
+
+    void
+    parse(int& argc, char**& argv);
+
+    OptionAdder
+    add_options();
+
+    private:
+    friend class OptionAdder;
+
+    std::set<char32_t> m_short;
+    std::set<std::string> m_long;
+  };
+
+  class OptionAdder
+  {
+    public:
+
+    OptionAdder(Options& options)
+    : m_options(options)
+    {
+    }
+
+    OptionAdder&
+    operator()
+    ( 
+      const std::string& opts, 
+      const std::string& desc
+    );
+
+    private:
+    Options& m_options;
+  };
 }

src/main.cpp

@@ -1,12 +1,21 @@
 #include <iostream>
+#include <locale>
 
 #include "cxxopts.hpp"
 
 int main(int argc, char* argv[])
 {
+  std::locale::global(std::locale(""));
   try
   {
 
+  cxxopts::option_matcher.imbue(std::locale(""));
+  cxxopts::option_matcher.assign
+    ("--([[:alpha:]][-_[:alpha:]]+)(=(.*))?|-([a-zA-Z]+)", 
+     std::regex_constants::extended | std::regex_constants::ECMAScript | 
+       std::regex_constants::collate);
+  std::cout << cxxopts::option_matcher.getloc().name() << std::endl;
+
   std::match_results<const char*> result;
 
   for (int i = 1; i < argc; ++i)
@@ -19,7 +28,7 @@ int main(int argc, char* argv[])
     std::cout << "matches:" << std::endl;
     for (int j = 0; j != result.size(); ++j)
     {
-      std::cout << result[j] << std::endl;
+      std::cout << "arg " << j << ": " << result[j] << std::endl;
     }
   }