Inject HTML into a node

[HamptonMakes]

There should be a way to inject HTML into a node. For instance,

node.String() // ""
node.Inject("<div />")
node.String() // "<div />"

And, furthermore, this new div has to be properly doc'd.

node.FirstElement().Doc() == node.Doc()
// and ensure this happens in C-world too!

[zhigangc]

Does the node erase everything it has, like its current tag name, and all its children nodes?

I'd need more detailed description and examples.

[HamptonMakes]

"<div>mom<br/></div>"
divNode.Inject("Hey <hr/>")
"<div>mom<br/>Hey <hr/></div>"

Replaces the inner() contents and returns the Slice of injected nodes. So, the return would have two Nodes in it... one TextNode ("Hey ") and one Element ("hr").

And its current tag name is untouched. The element itself is untouched.

[zhigangc]

Then, in your opening comment, should "node.String()" be really "node.Content". I thought String() would output the node itself and its children, wouldn't it?

So this is the same as SetContent, except we are dealing with HTML here?

[HamptonMakes]

Yes, exactly. And you are totally correct. My mistake.

On Nov 16, 2011, at 10:43 AM, Zhigang Chen wrote:

Then, in your opening comment, should "node.String()" be really "node.Content". I thought String() would output the node itself and its children, wouldn't it?

So this is the same as SetContent, except we are dealing with HTML here?

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[zhigangc]

Add SetHtmlContent for Element. A testcase is also added.

[HamptonMakes]

Implementing it this way makes it impossible to get the
newly inserted collection, since all of the other siblings are
destroyed in the process.

See my example above where it injects the new nodes into
the bottom of the document.

On Nov 16, 2011, at 11:18 AM, Zhigang Chen wrote:

Add SetHtmlContent for Element. A testcase is also added.

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[zhigangc]

Then "Replaces the inner() contents" is at odds with the example.

[HamptonMakes]

Blah. What is wrong with me?
I was working on two bugs at once and my brain was getting fried.

This should inject some new nodes (inputted as an HTML string) to the bottom of
the node. So, its like AppendContent(), but its not escaped. And, it returns the
newly added nodes (NodeSet? Slice?).

doc := libxml.XmlParseString("<root><parent><child /></parent></root>")
root := doc.RootElement()
parent := root.First()
Equal(t, parent.Size(), 1)
insertions := parent.Inject(" and <sibling/>")
Equal(t, len(insertions), 2)
Equal(t, parent.Size(), 3)
Equal(t, parent.First().Name(), "child")
Equal(t, parent.First().Next().Content(), " and ") // not a functional line (yet)
Equal(t, parent.Last().Name(), "sibling")
Equal(t, insertions[1], parent.Last())  // go node comparability isnt working, but this should be kind-of-true

[zhigangc]

You can use AppendHtmlContent

check the commit:

https://github.com/moovweb/gokogiri/commit/5417e413ad193d8b376feeb64d2050b34492ae63