reorganise

src/cxxopts.cpp

@@ -62,27 +62,7 @@ OptionAdder::operator()
   const auto& s = result[2];
   const auto& l = result[3];
 
-  auto option = std::make_shared<OptionDetails>(desc, value);
+  m_options.add_option(s.str(), l.str(), desc, value);
-
-  if (s.length() != 0)
-  {
-    auto in = m_options.m_options.insert(std::make_pair(s.str(), option));
-
-    if (!in.second)
-    {
-      throw option_exists_error(s.str());
-    }
-  }
-
-  if (l.length() != 0)
-  {
-    auto in = m_options.m_options.insert(std::make_pair(l, option));
-
-    if (!in.second)
-    {
-      throw option_exists_error(l.str());
-    }
-  }
 
   return *this;
 }
@@ -268,4 +248,48 @@ Options::parse(int& argc, char**& argv)
   argc = nextKeep;
 }
 
+void
+Options::add_option
+(
+  const std::string& s, 
+  const std::string& l, 
+  const std::string& desc,
+  std::shared_ptr<const Value> value
+)
+{
+  auto option = std::make_shared<OptionDetails>(desc, value);
+
+  add_one_option(s, option);
+  add_one_option(l, option);
+
+  //add the help details
+}
+
+void
+Options::add_one_option
+(
+  const std::string& option,
+  std::shared_ptr<OptionDetails> details
+)
+{
+  auto in = m_options.insert(std::make_pair(option, details));
+
+  if (!in.second)
+  {
+    throw option_exists_error(option);
+  }
+}
+
+std::string
+Options::help() const
+{
+  auto group = m_help.find("");
+  if (group == m_help.end())
+  {
+    return "";
+  }
+
+  return "";
+}
+
 }

src/cxxopts.hpp

@@ -286,6 +286,18 @@ namespace cxxopts
     int m_count;
   };
 
+  class HelpDetails
+  {
+    public:
+    HelpDetails();
+
+    private:
+    std::string m_short;
+    std::string m_long;
+    std::string m_description;
+    bool m_arg;
+  };
+
   class Options
   {
     public:
@@ -296,6 +308,15 @@ namespace cxxopts
     OptionAdder
     add_options();
 
+    void
+    add_option
+    (
+      const std::string& s, 
+      const std::string& l, 
+      const std::string& desc,
+      std::shared_ptr<const Value> value
+    );
+
     int
     count(const std::string& o) const
     {
@@ -325,8 +346,17 @@ namespace cxxopts
     void
     parse_positional(std::string option);
 
+    std::string
+    help() const;
+
     private:
-    friend class OptionAdder;
+    
+    void
+    add_one_option
+    (
+      const std::string& option,
+      std::shared_ptr<OptionDetails> details
+    );
 
     bool
     consume_positional(std::string a);
@@ -352,9 +382,11 @@ namespace cxxopts
       const std::string& name
     );
 
-
     std::map<std::string, std::shared_ptr<OptionDetails>> m_options;
     std::string m_positional;
+
+    //mapping from groups to help options
+    std::map<std::string, std::vector<HelpDetails>> m_help;
   };
 
   class OptionAdder