rails过滤html

strip_links (html)

Strips all link tags from text leaving just the link text.

Examples strip_links('<a href="http://www.rubyonrails.org">Ruby on Rails</a>')
# => Ruby on Rails

strip_links('Please e-mail me at <a href="mailto:me@email.com">me@email.com</a>.')
# => Please e-mail me at me@email.com.

strip_links('Blog: <a href="http://www.myblog.com/" class="nav" target=\"_blank\">Visit</a>.')
# => Blog: Visit

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strip_tags (html)

Strips all HTML tags from the html, including comments. This uses the html-scanner tokenizer and so its HTML parsing ability is limited by that of html-scanner.

Examples strip_tags("Strip <i>these</i> tags!")
# => Strip these tags!

strip_tags("<b>Bold</b> no more! <a href='more.html'>See more here</a>...")
# => Bold no more! See more here...

strip_tags("<div id='top-bar'>Welcome to my website!</div>")
# => Welcome to my website!