TextEditor: Add a command line option to jump to a specific line number

Userland/Applications/TextEditor/main.cpp

@@ -45,9 +45,11 @@ int main(int argc, char** argv)
  }
 
  const char* preview_mode = "auto";
+ int initial_line_number = 0;
  const char* file_to_edit = nullptr;
  Core::ArgsParser parser;
  parser.add_option(preview_mode, "Preview mode, one of 'none', 'html', 'markdown', 'auto'", "preview-mode", '\0', "mode");
+ parser.add_option(initial_line_number, "Start at line number", "line-number", 'l', "line");
  parser.add_positional_argument(file_to_edit, "File to edit", "file", Core::ArgsParser::Required::No);
 
  parser.parse(argc, argv);
@@ -91,6 +93,9 @@ int main(int argc, char** argv)
  else
  text_widget.update_title();
 
+ if (initial_line_number != 0)
+ text_widget.editor().set_cursor_and_focus_line(initial_line_number - 1, 0);
+
  window->show();
  window->set_icon(app_icon.bitmap_for_size(16));