Buffer: add a type property

src/buffer.cc

@@ -136,8 +136,10 @@ bool BufferIterator::is_end() const
     return m_position == m_buffer->length();
 }
 
-Buffer::Buffer(const std::string& name, const BufferString& initial_content)
+Buffer::Buffer(const std::string& name, Type type,
-    : m_name(name), m_history(1), m_history_cursor(m_history.begin()),
+               const BufferString& initial_content)
+    : m_name(name), m_type(type),
+      m_history(1), m_history_cursor(m_history.begin()),
       m_content(initial_content), m_last_save_undo_group(m_history.begin())
 {
     BufferManager::instance().register_buffer(this);

src/buffer.hh

@@ -71,7 +71,13 @@ private:
 class Buffer
 {
 public:
-    Buffer(const std::string& name,
+    enum class Type
+    {
+        File,
+        Scratch
+    };
+
+    Buffer(const std::string& name, Type type,
            const BufferString& initial_content = "");
 
     void           begin_undo_group();
@@ -107,6 +113,7 @@ public:
     void delete_window(Window* window);
 
     bool is_modified() const;
+    Type type() const { return m_type; }
     void notify_saved();
 
 private:
@@ -129,6 +136,7 @@ private:
     BufferString m_content;
 
     std::string  m_name;
+    const Type   m_type;
 
     struct Modification
     {

src/file.cc

@@ -39,7 +39,7 @@ Buffer* create_buffer_from_file(const std::string& filename)
     if (Buffer* buffer = BufferManager::instance().get_buffer(filename))
         BufferManager::instance().delete_buffer(buffer);
 
-    return new Buffer(filename, content);
+    return new Buffer(filename, Buffer::Type::File, content);
 }
 
 void write_buffer_to_file(const Buffer& buffer, const std::string& filename)

src/main.cc

@@ -371,7 +371,7 @@ void edit(const CommandParameters& params)
     catch (file_not_found& what)
     {
         print_status("new file " + filename);
-        buffer = new Buffer(filename);
+        buffer = new Buffer(filename, Buffer::Type::File);
     }
     current_window = buffer->get_or_create_window();
 }
@@ -400,7 +400,7 @@ void quit(const CommandParameters& params)
     {
         for (auto& buffer : BufferManager::instance())
         {
-            if (buffer.is_modified())
+            if (buffer.type() == Buffer::Type::File and buffer.is_modified())
             {
                 print_status("modified buffer remaining");
                 return;
@@ -558,7 +558,7 @@ int main(int argc, char* argv[])
 
     try
     {
-        auto buffer = (argc > 1) ? create_buffer_from_file(argv[1]) : new Buffer("<scratch>");
+        auto buffer = (argc > 1) ? create_buffer_from_file(argv[1]) : new Buffer("*scratch*", Buffer::Type::Scratch);
         current_window = buffer->get_or_create_window();
 
         draw_window(*current_window);