Method view

src/query.cpp:2361–2683

view or edit the file located under the cursor or just above in the screen (when not in selection mode)

// view or edit the file located under the cursor or just above in the screen (when not in selection mode)
void Query::view()
{
  if (row_ >= rows_ || flag_text || flag_format != NULL)
  {
    Screen::alert();
    return;
  }

  // if no viewer, then give up
  if (flag_view == NULL || *flag_view == '\0' || (*flag_view == '+' && flag_view[1] == '\0'))
  {
    Screen::alert();
    return;
  }

  bool keypress = (*flag_view == '+');
  std::string command(flag_view + keypress);
  int ref = select_ >= 0 ? select_ : row_;
  size_t line_number = 0;

  // -n: extract line number from ugrep output if the specified pager supports +linenum
  if (flag_line_number &&
      !flag_files_with_matches &&
      !flag_count &&
      !flag_hex &&
      !flag_with_hex &&
      (command == "less"       ||
       command == "moar-pager" ||
       command == "moar"       ||
       command == "moor"       ||
       command == "more"       ||
       command == "most"       ||
       command == "w3m"        ||
       command == "emacs"      ||
       command == "joe"        ||
       command == "vi"         ||
       command == "vim"        ||
       command == "vis"        ||
       command == "kak"        ||
       command == "nano"       ||
       command == "pico"       ||
       command == "vile"       ||
       command == "zile"))
  {
    line_number = get_line_number();
  }

  std::string filename;
  std::string partname;
  bool found = false;

  if (rows_ > 0)
  {
    if (flag_tree && (flag_files_with_matches || flag_count))
    {
      // --tree with -c or -l: move down over non-filename lines to reach a filename
      while (ref + 1 < rows_ && (view_[ref].empty() || view_[ref].front() != '\0'))
        ++ref;