解码ColdFusion中的数字HTML实体？ [英] Decode Numeric HTML Entities in ColdFusion?

问题描述

我需要一种方法来将数字HTML实体转换为纯文本字符等效项。例如，我要转换实体：

I need a way to transform numeric HTML entities into their plain-text character equivalent. For example, I would like to turn the entity:

é

键入字符：

é

通过一些googling我发现一个函数 HtmlUnEditFormat ，但此函数仅转换命名实体。有没有办法解码ColdFusion中的数字实体？

Through some googling around I found a function called HtmlUnEditFormat, but this function only transforms named entities. Is there a way to decode numeric entities in ColdFusion?

推荐答案

更新答案：

感谢Todd Sharp指出了一个非常简单的方法来使用Apache Commons StringEscapeUtils库，它与CF（和Railo）一起打包，因此您可以执行：

Updated Answer:

Thanks to Todd Sharp for pointing out a very simple way to do this, using the Apache Commons StringEscapeUtils library, which is packaged with CF (and Railo), so you can just do:

<cfset Entity = "&##0233;" />
<cfset StrEscUtils = createObject("java", "org.apache.commons.lang.StringEscapeUtils") />
<cfset Character = StrEscUtils.unescapeHTML(Entity) />

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这个链接函数是icky - 没有必要明确命名它们，因为你说它不做数字。

That linked function is icky - there's no need to name them explicitly, and as you say it doesn't do numerics.

更简单的是让CF为你工作 - 使用 XmlParse 函数：

Much simpler is to let CF do the work for you - using the XmlParse function:

<cffunction name="decodeHtmlEntity" returntype="String" output="false">
    <cfargument name="Entity" type="String" hint="&##<number>; or &<name>;" />
    <cfreturn XmlParse('<xml>#Arguments.Entity#</xml>').XmlRoot.XmlText />
</cffunction>

这一个与Railo一起工作，但我不记得CF是否支持该语法，可能需要将其更改为：

That one works with Railo, I can't remember if CF supports that syntax yet though, so you might need to change it to:

<cffunction name="decodeHtmlEntity" returntype="String" output="false">
    <cfargument name="Entity" type="String" hint="&##<number>; or &<name>;" />
    <cfset var XmlDoc = XmlParse('<xml>#Arguments.Entity#</xml>') />
    <cfreturn XmlDoc.XmlRoot.XmlText />
</cffunction>

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