diff --git a/src/source_base.cpp b/src/source_base.cpp
index 0fd282c..97d5abb 100644
--- a/src/source_base.cpp
+++ b/src/source_base.cpp
@@ -10,7 +10,7 @@
 #include <gtksourceview/gtksource.h>
 #include <regex>
 
-Source::SearchView::SearchView() : Gsv::View() {
+Source::SearchView::SearchView(const Glib::RefPtr<Gsv::Language> &language) : Gsv::View(), language(language) {
   search_settings = gtk_source_search_settings_new();
   gtk_source_search_settings_set_wrap_around(search_settings, true);
   search_context = gtk_source_search_context_new(get_source_buffer()->gobj(), search_settings);
@@ -136,7 +136,130 @@ bool Source::SearchView::on_key_press_event(GdkEventKey *event) {
   return Gsv::View::on_key_press_event(event);
 }
 
-Source::BaseView::BaseView(const boost::filesystem::path &file_path, const Glib::RefPtr<Gsv::Language> &language) : SearchView(), file_path(file_path), language(language), status_diagnostics(0, 0, 0) {
+void Source::SearchView::cut() {
+  if(!get_editable())
+    return copy();
+
+  disable_spellcheck = true;
+  ScopeGuard guard{[this] {
+    disable_spellcheck = false;
+  }};
+
+  if(!get_buffer()->get_has_selection())
+    cut_lines();
+  else if(language && language->get_id() == "diff") {
+    Gtk::TextIter start, end;
+    get_buffer()->get_selection_bounds(start, end);
+    Glib::ustring selection;
+    selection.reserve(end.get_offset() - start.get_offset());
+    for(auto iter = start; iter < end; ++iter) {
+      if(iter.starts_line() && *iter == '@') {
+        selection = get_buffer()->get_text(start, end);
+        break;
+      }
+      if(!(iter.starts_line() && (*iter == '-' || *iter == '+')))
+        selection += *iter;
+    }
+    Gtk::Clipboard::get()->set_text(selection);
+    get_buffer()->erase(start, end);
+  }
+  else
+    get_buffer()->cut_clipboard(Gtk::Clipboard::get());
+  keep_clipboard = true;
+}
+
+void Source::SearchView::cut_lines() {
+  if(!get_editable())
+    return copy_lines();
+
+  disable_spellcheck = true;
+  ScopeGuard guard{[this] {
+    disable_spellcheck = false;
+  }};
+
+  Gtk::TextIter start, end;
+  get_buffer()->get_selection_bounds(start, end);
+  start = get_buffer()->get_iter_at_line(start.get_line());
+
+  if(!end.ends_line())
+    end.forward_to_line_end();
+  end.forward_char();
+
+  if(language && language->get_id() == "diff") {
+    Glib::ustring selection;
+    selection.reserve(end.get_offset() - start.get_offset());
+    for(auto iter = start; iter < end; ++iter) {
+      if(iter.starts_line() && *iter == '@') {
+        selection = get_buffer()->get_text(start, end);
+        break;
+      }
+      if(!(iter.starts_line() && (*iter == '-' || *iter == '+')))
+        selection += *iter;
+    }
+    if(keep_clipboard)
+      Gtk::Clipboard::get()->set_text(Gtk::Clipboard::get()->wait_for_text() + selection);
+    else
+      Gtk::Clipboard::get()->set_text(selection);
+  }
+  else {
+    if(keep_clipboard)
+      Gtk::Clipboard::get()->set_text(Gtk::Clipboard::get()->wait_for_text() + get_buffer()->get_text(start, end));
+    else
+      Gtk::Clipboard::get()->set_text(get_buffer()->get_text(start, end));
+  }
+  get_buffer()->erase(start, end);
+  keep_clipboard = true;
+}
+
+void Source::SearchView::copy() {
+  if(!get_buffer()->get_has_selection())
+    copy_lines();
+  else if(language && language->get_id() == "diff") {
+    Gtk::TextIter start, end;
+    get_buffer()->get_selection_bounds(start, end);
+    Glib::ustring selection;
+    selection.reserve(end.get_offset() - start.get_offset());
+    for(auto iter = start; iter < end; ++iter) {
+      if(iter.starts_line() && *iter == '@') {
+        selection = get_buffer()->get_text(start, end);
+        break;
+      }
+      if(!(iter.starts_line() && (*iter == '-' || *iter == '+')))
+        selection += *iter;
+    }
+    Gtk::Clipboard::get()->set_text(selection);
+  }
+  else
+    get_buffer()->copy_clipboard(Gtk::Clipboard::get());
+}
+
+void Source::SearchView::copy_lines() {
+  Gtk::TextIter start, end;
+  get_buffer()->get_selection_bounds(start, end);
+  start = get_buffer()->get_iter_at_line(start.get_line());
+
+  if(!end.ends_line())
+    end.forward_to_line_end();
+  end.forward_char();
+
+  if(language && language->get_id() == "diff") {
+    Glib::ustring selection;
+    selection.reserve(end.get_offset() - start.get_offset());
+    for(auto iter = start; iter < end; ++iter) {
+      if(iter.starts_line() && *iter == '@') {
+        selection = get_buffer()->get_text(start, end);
+        break;
+      }
+      if(!(iter.starts_line() && (*iter == '-' || *iter == '+')))
+        selection += *iter;
+    }
+    Gtk::Clipboard::get()->set_text(selection);
+  }
+  else
+    Gtk::Clipboard::get()->set_text(get_buffer()->get_text(start, end));
+}
+
+Source::BaseView::BaseView(const boost::filesystem::path &file_path, const Glib::RefPtr<Gsv::Language> &language) : SearchView(language), file_path(file_path), status_diagnostics(0, 0, 0) {
   get_style_context()->add_class("juci_source_view");
 
   load(true);
@@ -766,35 +889,17 @@ void Source::BaseView::cleanup_whitespace_characters(const Gtk::TextIter &iter)
     get_buffer()->erase(start_blank_iter, end_blank_iter);
 }
 
-void Source::BaseView::cut() {
-  if(!get_buffer()->get_has_selection())
-    cut_line();
-  else
-    get_buffer()->cut_clipboard(Gtk::Clipboard::get());
-  keep_clipboard = true;
-}
-
-void Source::BaseView::cut_line() {
-  Gtk::TextIter start, end;
-  get_buffer()->get_selection_bounds(start, end);
-  start = get_buffer()->get_iter_at_line(start.get_line());
-  if(!end.ends_line())
-    end.forward_to_line_end();
-  end.forward_char();
-  if(keep_clipboard)
-    Gtk::Clipboard::get()->set_text(Gtk::Clipboard::get()->wait_for_text() + get_buffer()->get_text(start, end));
-  else
-    Gtk::Clipboard::get()->set_text(get_buffer()->get_text(start, end));
-  get_buffer()->erase(start, end);
-  keep_clipboard = true;
-}
-
 void Source::BaseView::paste() {
+  disable_spellcheck = true;
+  ScopeGuard spellcheck_guard{[this] {
+    disable_spellcheck = false;
+  }};
+
   if(CompletionDialog::get())
     CompletionDialog::get()->hide();
 
   enable_multiple_cursors = true;
-  ScopeGuard guard{[this] {
+  ScopeGuard multiple_cursors_guard{[this] {
     enable_multiple_cursors = false;
   }};
 
diff --git a/src/source_base.hpp b/src/source_base.hpp
index 5dfa9d5..0d24a03 100644
--- a/src/source_base.hpp
+++ b/src/source_base.hpp
@@ -29,7 +29,7 @@ namespace Source {
 
   class SearchView : public Gsv::View {
   public:
-    SearchView();
+    SearchView(const Glib::RefPtr<Gsv::Language> &language = {});
     ~SearchView() override;
     void search_highlight(const std::string &text, bool case_sensitive, bool regex);
     void search_forward();
@@ -38,6 +38,18 @@ namespace Source {
     void replace_backward(const std::string &replacement);
     void replace_all(const std::string &replacement);
 
+    Glib::RefPtr<Gsv::Language> language;
+
+  protected:
+    bool keep_clipboard = false;
+
+  public:
+    void cut();
+    void cut_lines();
+    void copy();
+    void copy_lines();
+    bool disable_spellcheck = false;
+
     std::function<void(int number)> update_search_occurrences;
 
   protected:
@@ -55,8 +67,6 @@ namespace Source {
     ~BaseView() override;
     boost::filesystem::path file_path;
 
-    Glib::RefPtr<Gsv::Language> language;
-
     bool load(bool not_undoable_action = false);
     /// Set new text more optimally and without unnecessary scrolling
     void replace_text(const std::string &new_text);
@@ -102,19 +112,12 @@ namespace Source {
     std::function<void(BaseView *view)> update_status_branch;
     std::string status_branch;
 
-    void cut();
-    void cut_line();
     void paste();
 
     std::string get_selected_text();
 
-    bool disable_spellcheck = false;
-
     void set_snippets();
 
-  private:
-    bool keep_clipboard = false;
-
   protected:
     boost::optional<std::time_t> last_write_time;
     void monitor_file();
diff --git a/src/window.cpp b/src/window.cpp
index e80c66b..f805405 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -632,15 +632,8 @@ void Window::set_menu_actions() {
       else
         entry->cut_clipboard();
     }
-    else if(auto view = dynamic_cast<Gtk::TextView *>(widget)) {
-      if(!view->get_editable())
-        return;
-      if(auto source_view = dynamic_cast<Source::View *>(view)) {
-        source_view->disable_spellcheck = true;
-        source_view->cut();
-        source_view->disable_spellcheck = false;
-      }
-    }
+    else if(auto view = dynamic_cast<Source::SearchView *>(widget))
+      view->cut();
   });
   menu.add_action("edit_cut_lines", [this]() {
     // Return if a shown tooltip has selected text
@@ -655,15 +648,8 @@ void Window::set_menu_actions() {
       Gtk::Clipboard::get()->set_text(entry->get_text());
       entry->set_text("");
     }
-    else if(auto view = dynamic_cast<Gtk::TextView *>(widget)) {
-      if(!view->get_editable())
-        return;
-      if(auto source_view = dynamic_cast<Source::View *>(view)) {
-        source_view->disable_spellcheck = true;
-        source_view->cut_line();
-        source_view->disable_spellcheck = false;
-      }
-    }
+    else if(auto view = dynamic_cast<Source::SearchView *>(widget))
+      view->cut_lines();
   });
   menu.add_action("edit_copy", [this]() {
     // Copy from a tooltip if it has selected text
@@ -683,18 +669,8 @@ void Window::set_menu_actions() {
       else
         entry->copy_clipboard();
     }
-    else if(auto view = dynamic_cast<Gtk::TextView *>(widget)) {
-      if(!view->get_buffer()->get_has_selection()) {
-        auto start = view->get_buffer()->get_iter_at_line(view->get_buffer()->get_insert()->get_iter().get_line());
-        auto end = start;
-        if(!end.ends_line())
-          end.forward_to_line_end();
-        end.forward_char();
-        Gtk::Clipboard::get()->set_text(view->get_buffer()->get_text(start, end));
-      }
-      else
-        view->get_buffer()->copy_clipboard(Gtk::Clipboard::get());
-    }
+    else if(auto view = dynamic_cast<Source::SearchView *>(widget))
+      view->copy();
   });
   menu.add_action("edit_copy_lines", [this]() {
     // Copy from a tooltip if it has selected text
@@ -715,15 +691,8 @@ void Window::set_menu_actions() {
     auto widget = get_focus();
     if(auto entry = dynamic_cast<Gtk::Entry *>(widget))
       Gtk::Clipboard::get()->set_text(entry->get_text());
-    else if(auto view = dynamic_cast<Gtk::TextView *>(widget)) {
-      Gtk::TextIter start, end;
-      view->get_buffer()->get_selection_bounds(start, end);
-      start = view->get_buffer()->get_iter_at_line(start.get_line());
-      if(!end.ends_line())
-        end.forward_to_line_end();
-      end.forward_char();
-      Gtk::Clipboard::get()->set_text(view->get_buffer()->get_text(start, end));
-    }
+    else if(auto view = dynamic_cast<Source::SearchView *>(widget))
+      view->copy_lines();
   });
   menu.add_action("edit_paste", [this]() {
     auto widget = get_focus();
@@ -731,9 +700,7 @@ void Window::set_menu_actions() {
       entry->paste_clipboard();
     else if(auto view = dynamic_cast<Gtk::TextView *>(widget)) {
       if(auto source_view = dynamic_cast<Source::View *>(view)) {
-        source_view->disable_spellcheck = true;
         source_view->paste();
-        source_view->disable_spellcheck = false;
         source_view->hide_tooltips();
       }
       else if(auto terminal = dynamic_cast<Terminal *>(view)) {