SweetXml - how to get the name of the root element of an XML document?

Questions / Help
1

I know there should be an “easy” way to do this, but I cannot seem to find it.
I want to get the name of the root element of an XML document, I am using SweetXml.

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2

I would go for SweetXml.stream!(doc, options_callback), the example in HexDocs should give you a good starting point

3

Not necessarily the best solution, but you can try the following:

import SweetXml

doc = "<body><header><p>Message</p><ul><li>One</li><li><a>Two</a></li></ul></header></body>"

doc |> SweetXml.parse() |> elem(1)

which gives as outcome:
:body

4 
iex> import SweetXml
iex> "<hello>world</hello>" |> SweetXml.parse() |> xpath(~x"name(/*)"s)
"hello"

Stolen from this GitHub issue response.

Side note: That issue thread, although short, taught me a lot of useful information.

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5

Thanks!
And it can be even shorter, as you don’t need to parse the document first.

xpath(doc, ~x"name(/*)"s)
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