Yahoo!上的正则表达式管道 [英] Regular expression on Yahoo! pipes

问题描述

我正在与 Yahoo！ ，我用一些正则表达式击中了墙.现在，我熟悉Perl的正则表达式，但规则在Yahoo!中似乎有所不同.管道.

I'm fooling around with Yahoo! pipes and I'm hitting a wall with some regular expression. Now I'm familiar with regular expressions from Perl but the rules just seem to be different in Yahoo! pipes.

我正在做的是获取一个页面并将其转换为提要，我的正则表达式用于从HTML剥离链接，效果很好，但是我想成为< i>中的标题; 标记仅输出原始文本.

What I'm doing is fetching a page and trying to turn it into a feed, my regex for stripping out the link from the HTML works fine but the title which I want to be what was in <i> tags just outputs the original text.

在Perl和此在线正则表达式测试器上匹配的示例文本:

< a rel ="nofollow" target ="_ blank" HREF ="http://changed.to/protect/the-guilty.html">< i>收费Fi Fo Fun"(英语)/i</a> (另请参见此其他网站< a rel ="nofollow" target ="_ blank" href ="http://stackoverflow.com"> Nada</a>)此处还有一些其他文字

<a rel="nofollow" target="_blank" HREF="http://changed.to/protect/the-guilty.html"><i>"Fee Fi Fo Fun" (English Man)</i></a> (See also this other site <a rel="nofollow" target="_blank" href="http://stackoverflow.com">Nada</a>) Some other text here

推荐答案

RegEx作为标题:

RegEx for the title:

(?i).*?<i>([^<]*).*               [ ] g  [x] s  [ ] m  [ ] i

链接的正则表达式:

(?i).*?href="([^"]*).*            [ ] g  [x] s  [ ] m  [ ] i

不区分大小写的复选框似乎已损坏.幸运的是，您可以用(?i)代替，效果很好.

Somehow the case-insensitive checkbox seems broken. Luckily you can substitute with (?i), which works nicely.

这是一个不错的web2.0版本的工具，用于测试正则表达式，其中包括: RegExr .但是由于某种原因，它仍然是beta. ;-)

Here is a nice web2.0-ish tool to test regular expressions with: RegExr. But for some reason it's still beta. ;-)

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