html,objective-c,regex , In objective-c how can i get the “url” and “content” between <a> tags using regular expression?


In objective-c how can i get the “url” and “content” between tags using regular expression?

Question:

Tag:
html,objective-c,regex

The <a> tag like this:

<a data-hash="9aab8aa3af7dc519c643fdcfd973b040" href="http://www.zhihu.com/people/9aab8aa3af7dc519c643fdcfd973b040" class="member_mention" data-editable="true" data-title="@somebody" data-tip="p$b$9aab8aa3af7dc519c643fdcfd973b040">@somebody</a>

and I want get the url

href="http://www.zhihu.com/people/9aab8aa3af7dc519c643fdcfd973b040" 

and the @somebody at the same time

I have tried like this:

href=\"(.*?)\">(.*?)</a>

The result is:

href="http://www.zhihu.com/people/9aab8aa3af7dc519c643fdcfd973b040" class="member_mention" data-editable="true" data-title="@somebody" data-tip="p$b$9aab8aa3af7dc519c643fdcfd973b040">@somebody</a>

Is anyone can give me some suggestion?


Answer:

You also need to match the extra parameters present inside the anchor tag.

"<a\\b[^>]*\\bhref=\"(.*?)\"[^>]*>(.*?)</a>"

or

"<a\\b[^>]*\\bhref=\"([^"]*)\"[^>]*>(.*?)</a>"

Then get the strings you want from group index 1 and 2. Your regex matches all the following chars (ie, chars next to href attribute) because it looks for an > symbol just after to the double quotes. Hence it finds a match in data-tip="p$b$9aab8aa3af7dc519c643fdcfd973b040">, so this part also get captured by the first capturing group.

DEMO


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