帮助使用 Actionscript 3 正则表达式和 xmpp 节

发布于 2024-09-28 10:25:22 字数 726 浏览 5 评论 0原文

我有一个字符串：

<presence to="[email protected]/d9ec56e4"
from="[email protected]/testsubject_2">
<x xmlns="http://jabber.org/protocol/muc#user"><item affiliation="none"
role="visitor"/></x></presence>

我如何找出它是否包含存在属性以及它来自谁？我尝试过使用 as3 的 xml 方法，但它们要求 xml 是一个完整的文档，所以我想使用正则表达式，但已经晚了，我在睡觉前丢失了如此糟糕的帖子:)

if (string contains <presence to="){
    // get who its from
}

原文

i have a string:

<presence to="[email protected]/d9ec56e4"
from="[email protected]/testsubject_2">
<x xmlns="http://jabber.org/protocol/muc#user"><item affiliation="none"
role="visitor"/></x></presence>

how would i find out if it contains the presence attribute as well as who its from?
ive tried using as3's xml methods but they require that the xml is a complete document so i figure to use regex but its late and im lost so ill post before i go to sleep :)

if (string contains <presence to="){
    // get who its from
}

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扛刀软妹 2024-10-05 10:25:22

啊啊！我强烈建议您不要使用正则表达式来解析 XML，这就是我们拥有 XML 解析器的原因。

var raw_data:String = '<presence to="[email protected]/d9ec56e4" from="[email protected]/testsubject_2"> <x xmlns="http://jabber.org/protocol/muc#user"><item affiliation="none" role="visitor"/></x></presence>';
trace("raw_data:", raw_data);
var presence:XML = new XML(raw_data);
trace("presence:", presence);
trace("root name == presence:", (presence.localName() == "presence")); // [trace] root name == presence: true
trace("from:", presence.@from); // [trace] from: [email protected]/testsubject_2

http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/XML.html

或者只使用众多 XMPP 库之一：

http://code.google。 com/p/as3xmpp/

http://code.google.com/ p/seesmic-as3-xmpp/

ARGH! I would highly recommend you don't use regex to parse XML, that's why we have XML parsers.

var raw_data:String = '<presence to="[email protected]/d9ec56e4" from="[email protected]/testsubject_2"> <x xmlns="http://jabber.org/protocol/muc#user"><item affiliation="none" role="visitor"/></x></presence>';
trace("raw_data:", raw_data);
var presence:XML = new XML(raw_data);
trace("presence:", presence);
trace("root name == presence:", (presence.localName() == "presence")); // [trace] root name == presence: true
trace("from:", presence.@from); // [trace] from: [email protected]/testsubject_2

http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/XML.html

Or just use one of the many XMPP libraries out there:

http://code.google.com/p/as3xmpp/

http://code.google.com/p/seesmic-as3-xmpp/

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