我有一个用户名字符串，形式为“ hello1 @ devlab，hello2 @ devlab，hello3 @ devlab”。此字符串可以有N个用户名。
我想将其转换为以下形式的数据包：
Packet_in_tuple_form={xmlel,<<"message">>,[{<<"id">>,<<"rkX6Q-8">>},{<<"to">>,<<"multicast.devlab">>}],[{xmlel,<<"body">>,[],[{xmlcdata,<<"ABCMSG">>}]},{xmlel,<<"addresses">>,[{<<"xmlns">>,<<"http://jabber.org/protocol/address">>}],
[
{xmlel,<<"address">>,[{<<"type">>,<<"to">>},{<<"jid">>,<<"hello1@devlab">>},{<<"desc">>,<<"description goes here!">>}],[]},
{xmlel,<<"address">>,[{<<"type">>,<<"to">>},{<<"jid">>,<<"hello2@devlab">>},{<<"desc">>,<<"description goes here!">>}],[]},
{xmlel,<<"address">>,[{<<"type">>,<<"to">>},{<<"jid">>,<<"hello3@devlab">>},{<<"desc">>,<<"description goes here!">>}],[]}
]
}]},
因此，通过添加额外的xmlel元组，该数据包应该能够容纳N个用户名（根据字符串中的用户名数量）：-
Packet_in_tuple_form={xmlel,<<"message">>,[{<<"id">>,<<"rkX6Q-8">>},{<<"to">>,<<"multicast.devlab">>}],[{xmlel,<<"body">>,[],[{xmlcdata,<<"ABCMSG">>}]},{xmlel,<<"addresses">>,[{<<"xmlns">>,<<"http://jabber.org/protocol/address">>}],
[
{xmlel,<<"address">>,[{<<"type">>,<<"to">>},{<<"jid">>,<<"hello1@devlab">>},{<<"desc">>,<<"description goes here!">>}],[]},
{xmlel,<<"address">>,[{<<"type">>,<<"to">>},{<<"jid">>,<<"hello2@devlab">>},{<<"desc">>,<<"description goes here!">>}],[]},
{xmlel,<<"address">>,[{<<"type">>,<<"to">>},{<<"jid">>,<<"hello3@devlab">>},{<<"desc">>,<<"description goes here!">>}],[]},
{xmlel,<<"address">>,[{<<"type">>,<<"to">>},{<<"jid">>,<<"hello4@devlab">>},{<<"desc">>,<<"description goes here!">>}],[]},
{xmlel,<<"address">>,[{<<"type">>,<<"to">>},{<<"jid">>,<<"hello5@devlab">>},{<<"desc">>,<<"description goes here!">>}],[]}
]
}]},
我怎样才能做到这一点？
感谢和问候
这是一个如何将字符串转换为地址列表的示例：
Str = "hello1@devlab, hello2@devlab, hello3@devlab",
Addrs = [I || I <- string:tokens(Str, ", ")].
因此，可以通过以下方式为您的数据包生成地址列表Addrs：
[{xmlel,<<"address">>,[{<<"type">>,<<"to">>},{<<"jid">>,list_to_binary(JID)},{<<"desc">>,<<"description goes here!">>}],[]} || JID <- Addrs].
本文收集自互联网，转载请注明来源。
如有侵权，请联系 [email protected] 删除。
我来说两句