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Diffstat (limited to 'actionpack/lib/action_view')
| -rw-r--r-- | actionpack/lib/action_view/helpers/text_helper.rb | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/actionpack/lib/action_view/helpers/text_helper.rb b/actionpack/lib/action_view/helpers/text_helper.rb index 4ead8a816f..e19ba8a66c 100644 --- a/actionpack/lib/action_view/helpers/text_helper.rb +++ b/actionpack/lib/action_view/helpers/text_helper.rb @@ -202,6 +202,28 @@ module ActionView html end + # Strips all HTML tags from the input, including comments. This uses the html-scanner + # tokenizer and so it's HTML parsing ability is limited by that of html-scanner. + # + # Returns the tag free text. + def strip_tags(html) + if html.index("<") + text = "" + tokenizer = HTML::Tokenizer.new(html) + + while token = tokenizer.next + node = HTML::Node.parse(nil, 0, 0, token, false) + # result is only the content of any Text nodes + text << node.to_s if node.class == HTML::Text + end + # strip any comments, and if they have a newline at the end (ie. line with + # only a comment) strip that too + text.gsub(/<!--(.*?)-->[\n]?/m, "") + else + html # already plain text + end + end + # Returns a Cycle object whose to_s value cycles through items of an # array every time it is called. This can be used to alternate classes # for table rows: |