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/*
The first column always contains the window identity as a hexadecimal integer.
The second column always contains the desktop number (a -1 is used to identify a sticky window).
If the -p option is specified the next column will contain the PID for the window as a decimal integer.
If the -G option is specified then four integer columns will follow: x-offset, y-offset, width and height.
The next column always contains the client machine name.
The remainder of the line contains the window title (possibly with multiple spaces in the title).
*/

sclass wmctrl_Entry {
  S windowTitle;
  S windowIdentity;
  int desktopNumber;
  int pid;
  Rect bounds;
  S machineName;
}

static L<wmctrl_Entry> linux_parse_wmctrl_lpG_output(S output) {
  ret map_pcall(tlft(output), func(S s) -> wmctrl_Entry {
    L<IntRange> streaks = takeFirst(8, nonStreaks(f isSpace, characters(s)));
    LS l = intRangeSubstrings(s, streaks);
    ret nu(wmctrl_Entry,
      windowTitle := trimSubstring(s, last(streaks).end),
      windowIdentity := l.get(0),
      desktopNumber := parseInt(l.get(1)),
      pid := parseInt(l.get(2)),
      bounds := rect(parseInt(l.get(3)), parseInt(l.get(4)), parseInt(l.get(5)), parseInt(l.get(6))),
      machineName := l.get(7));
  });
}