Re: Hpricot and xpath

Subject: Re: Hpricot and xpath

tag1.rb:6: undefined method `xpath’ for nil:NilClass (NoMethodError)
Do you see the nil in that line? Where is the nil coming from? Is the method
before the .xpath, on line 6, possibly returning a nil and not an Elem?

After pondering that, switch ‘#header’ to ‘.header’!
Hi Phlip,
Thank you for your dot!!!
I follow your suggestion and change to ‘.header’ or “.header” instead
of “#header” and and it works. Ruby returns the tag’s path like this:
/tag1/tag2/div. But I see nowhere in the document about using “.” and
“#” in xpath() or css_path(). Do I miss something in the docucment?
Li

chen li wrote:

I follow your suggestion and change to ‘.header’ or “.header” instead of “#header” and and it works. Ruby returns the tag’s path like this: /tag1/tag2/div. But I see nowhere in the document about using “.” and “#” in xpath() or css_path(). Do I miss something in the docucment?

That’s just the thing. I studied the crap out of HTML, XHTML, and light
CSS, and
never learned until encountering assert_select that CSS has its own
query
notation. Others with different career paths have learned nothing but -
and they
all assume you know the same things.

Hpricot can handle light XPath, and can handle various CSS Selector
notations.
The documenters have all assumed that someone else taught you how they
work. So
google for “CSS Selector”, without x-ref’ing Hpricot!

This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs