[
    {
        "caption": "打开URL链接", 
        "command": "open_context_url"
    }, 
    {
        "caption": "-"
    }, 
    {
        "caption": "剪切", 
        "command": "cut"
    }, 
    {
        "caption": "复制", 
        "command": "copy"
    }, 
    {
        "caption": "粘贴", 
        "command": "paste"
    }, 
    {
        "caption": "-"
    }, 
    {
        "caption": "全选", 
        "command": "select_all"
    }
]