Fixes #51. Removed carriage returns, which makes libclang report wrong line index.

src/source.cc

@@ -404,7 +404,27 @@ void Source::View::replace_all(const std::string &replacement) {
 }
 
 void Source::View::paste() {
-  Gtk::Clipboard::get()->request_text([this](const Glib::ustring& text){
+  auto text=Gtk::Clipboard::get()->wait_for_text();
+  //remove carriage returns (which makes clang return wrong line index)
+  for(auto it=text.begin();it!=text.end();) {
+    if(*it=='\r') {
+      auto it2=it;
+      it2++;
+      if(it2!=text.end()) {
+        if(*it2=='\n')
+          it=text.erase(it);
+        else {
+          text.replace(it, it2, "\n");
+          it++;
+        }
+      }
+      else
+        it=text.erase(it);
+    }
+    else
+      it++;
+  }
+
   auto line=get_line_before();
   std::smatch sm;
   std::string prefix_tabs;
@@ -499,9 +519,10 @@ void Source::View::paste() {
     scroll_to(get_buffer()->get_insert());
     get_source_buffer()->end_user_action();
   }
-    else
+  else {
+    Gtk::Clipboard::get()->set_text(text);
     get_buffer()->paste_clipboard(Gtk::Clipboard::get());
-  });
+  }
 }
 
 void Source::View::set_status(const std::string &status) {