xdotool选项的问题

Question

xdotool页面列出了iv试图使用的一些选项和gt错误消息。例如，xdotool --sync mousemove 100 100给出了：

xdotool: unrecognized option '--sync'
Usage: xdotool <cmd> <args>

xdotool --window <window_id> type "Hello world"给出的另一个例子是：

xdotool: unrecognized option '--window'
Usage: xdotool <cmd> <args>

xdotool version 3.20160805.1

我查看了源代码，它们都被列为有效的选项，但我认为代码做得不对.

在源文件cmd_mousemove.c中：

  int cmd_mousemove(context_t *context) {
  int ret = 0;
  char *cmd = *context->argv;
  char *window_arg = NULL;

  struct mousemove mousemove;
  mousemove.clear_modifiers = 0;
  mousemove.polar_coordinates = 0;
  mousemove.opsync = 0;
  mousemove.screen = 0;
  mousemove.x = 0;
  mousemove.y = 0;
  mousemove.step = 0;

  int c;
  typedef enum {
    opt_unused, opt_help, opt_sync, opt_clearmodifiers, opt_polar,
    opt_screen, opt_step, opt_delay, opt_window
  } optlist_t;
  static struct option longopts[] = {
    { "clearmodifiers", no_argument, NULL, opt_clearmodifiers },
    { "help", no_argument, NULL, opt_help},
    { "polar", no_argument, NULL, opt_polar },
    { "screen", required_argument, NULL, opt_screen },
    //{ "step", required_argument, NULL, opt_step },
    { "sync", no_argument, NULL, opt_sync },
    //{ "delay", required_argument, NULL, opt_delay },
    { "window", required_argument, NULL, opt_window },
    { 0, 0, 0, 0 },
  };
  static const char *usage = 
      "Usage: %s [options] <x> <y>\n"
      "-c, --clearmodifiers      - reset active modifiers (alt, etc) while typing\n"
      //"-d, --delay <MS>          - sleeptime in milliseconds between steps.\n"
      //"--step <STEP>             - pixels to move each time along path to x,y.\n" "-p, --polar               - Use polar coordinates. X as an angle, Y as distance\n"
      "--screen SCREEN           - which screen to move on, default is current screen\n"
      "--sync                    - only exit once the mouse has moved\n"
      "-w, --window <windowid>   - specify a window to move relative to.\n";
  int option_index;

  while ((c = getopt_long_only(context->argc, context->argv, "+chw:pd:",
                               longopts, &option_index)) != -1) {
    switch (c) {
      case 'c':
      case opt_clearmodifiers:
        mousemove.clear_modifiers = 1;
        break;
      case 'h':
      case opt_help:
        printf(usage, cmd);
        consume_args(context, context->argc);
        return EXIT_SUCCESS;
        break;
      case opt_screen:
        mousemove.screen = atoi(optarg);
        break;
      case 'w':
      case opt_window:
        window_arg = strdup(optarg);
        break;
      case 'p':
      case opt_polar:
        mousemove.polar_coordinates = 1;
        break;
      case opt_step:
        mousemove.step = atoi(optarg);
        break;
      case 'd':
      case opt_delay:
        mousemove.delay = strtoul(optarg, NULL, 0) * 1000;
        break;
      case opt_sync:
        mousemove.opsync = 1;
        break;
      default:
        printf("unknown opt: %d\n", c);
        fprintf(stderr, usage, cmd);
        return EXIT_FAILURE;
    }
  }

阅读getopt_long_only()的手册页，我是否认为第三个论点对列出的所有选项都是不正确的？具体来说，它没有列出“s”作为选项，即使是这样，它又如何区分“同步”和“屏幕”呢？

Answer 1

在源文件cmd_mousemove.c中：

是的，这是mousemove的一个选项，就像一个“子”-command，而不是xdotool。

xdotool mousemove --sync 100 100

Xdotool有语法cmd args... -第一个命令，然后是该命令的参数。不同的命令，每个分析分开，当一个完成，下一个命令将被再次检测。这样您就可以链接命令：

xdotool mousemove --sync 100 100 type --window <windowid> "Hello world"

通常使用xdotool，首先设置“当前活动窗口”，然后对该窗口进行修改，因此是xdotool getactivewindow dosomething或xdotool search --options_to_serach dosomething。就像从文档中得到的：

xdotool search --class xterm -- windowsize --usehints %@ 80 24
        |------------------|                          ^^ - uses ative window
        cmd    args...
                                |----------------------------|
                                cmd        args...

或者：

xdotool getactivewindow windowmove 0 0

有关更多信息，请参见WINDOW STACK和man xdotool中的COMMAND CHAINING部分。