红宝石CGI.unescapeHTML生成奇怪的字符

我已经将一堆markdown格式的注释备份到XML文档中。这当然意味着我需要HTMLescape他们。当我尝试使用CGI.unescapeHTML时，它会在标记中添加一些奇怪的字符，而这些字符在所有浏览器中都不能很好地呈现。红宝石CGI.unescapeHTML生成奇怪的字符

具体而言，它用“\ 302 \ 240”替换两个空格，但不一致。我如何才能阻止这种行为？

如：

s = "I am seeing more and more &lt;a href=&quot;http://github.com/aslakhellesoy/cucumber /tree/master&quot;&gt;Cucumber&lt;/a&gt; usage.  This is a good thing!  But I'm also seeing people who are not using regular expressions to their fullest.  Here are some quick regex tips to keep you features readable:&#x000A;&#x000A;* `(?:a|an)` -- using a this construct you can group things wihout actually matching them.  I'm seeing a lot of steps that have unused params because someone needed a group but didn't know how to avoid capturing it&#x000A" 
CGI.unescapeHTML s 
# => "I am seeing more and more <a href=\"http://github.com/aslakhellesoy/cucumber/tree/master\">Cucumber</a> usage.\302\240 This is a good thing!\302\240 But I'm..."

来源

2009-09-02 John F. Miller

你使用的是什么版本？我没有在1.8.7上看到它。 – 2009-09-02 21:01:46

我发现这是由Haml将个字符作为空格引起的。它在这里工作，因为SO格式化解决了问题。尽管如此，还是有几个小时的工作要做。 – 2009-09-03 18:55:03

这些都是非中断空格。 Read up on wikipedia.

In computer-based text processing and digital typesetting, a 
non-breaking space, also known as a no-break space or 
non-breakable space (NBSP), is a variant of the space character 
that prevents an automatic line break (line wrap) at its position. 
In certain formats (such as HTML), it also prevents the 
“collapsing” of multiple consecutive whitespace characters into a 
single space. The non-breaking space is also known as a hard space 
or fixed space. In Unicode, it is encoded as U+00A0 no-break space 
(HTML: &#160; &nbsp;).

来源

2012-09-06 22:13:13 Reactormonk

红宝石CGI.unescapeHTML生成奇怪的字符

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