Add XML as a support data format

[bzerangue]

It would be nice to provide XML as an available data type to load.

Currently, Hugo accepts, TOML, YAML, JSON, and CSV. Is there any reason why XML is NOT amongst the available formats?

It would be great to add XML as an available data type for the /data folder.

[rdwatters]

@bzerangue This would be fantastic. Not sure if something like https://github.com/beevik/etree would help said efforts...

[stale]

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[fbaube]

+1 on this. Type "XML" could then act as a flag to invoke DOCTYPE parsing and optional validation.

[kaushalmodi]

Having a getXML similar to getJSON would be useful in creating "planets" from feeds. Ref: https://discourse.gohugo.io/t/anyone-here-interested-in-a-hugo-planet/15092.

It would be great to add XML as an available data type for the /data folder.

Not just the data/ folder, my proposal is to allow remote XML fetching. Once RSS/ATOM feeds can be fetched, we can maintain theme components that do the parsing of the fetched XML feeds.

[bep]

This looks promising: https://github.com/clbanning/mxj

But note that mapping arbitrary XML into a map isn't trivial.

[stephlocke]

This'll be great for surfacing RSS from other sources like Medium

[raybellis]

+1 from me, too - I'd like to be able to include references from the RFC index, but it's only published in XML format.

[fbaube]

I'm working on a Go library to parse mixed content. If anyone can propose an API (i.e. interfaces) that would be useful for Hugo, I could give it a whack.

[stephlocke]

On the RSS specific side, I currently leverage a site that parses RSS to JSON for consumption

{{ $rssJ := getJSON "https://api.rss2json.com/v1/api.json?rss_url=https%3A%2F%2Fmedium.com%2Ffeed%2Fnightingale-hq" }}


{{ range $rssJ.items }}
    {{ $post := . }}
    <div class="col-12 col-md-6 col-lg-4 mb-2 mr-2 pb-8 blog" style="background-image: url({{ $post.thumbnail }});">
    <a href="{{ $post.link }}" target="_blank" alt="{{ $post.title }}">
    <h2>{{ $post.title }}</h2>
    </a>
    <h3>{{ $post.author }}</h3>
    </div>
{{ end }}

[vanbroup]

https://github.com/antchfx/xmlquery seems to be a good fit to add XML data source support.

xmlquery is an XPath query package for XML documents, allowing you to extract data or evaluate from XML documents with an XPath expression.

xmlquery has a built-in query object caching feature that caches recently used XPATH query strings. Enabling caching can avoid recompile XPath expression for each query.

I created a simple PR with a working implementation: #9031

[vanbroup]

#9044 is another attempt to get XML data support

While this implementation provides less flexibility than my previous implementation using xmlquery (#9031), this one doesn't come with its own API and is much easier to use (equal to getJSON):

Sample usage:

{{ with getXML "https://www.w3schools.com/xml/note.xml" }}
{{ .note.body }}
{{ end }}

A common usage:

{{ with getXML "https://example.com/feed.rss" }}
{{ range .rss.channel.item }}
    <strong>{{ .title | plainify | htmlUnescape }}</strong><br />
    <p>{{ .description | plainify | htmlUnescape }}</p>
    {{ $link := .link | plainify | htmlUnescape }}
    <a href="{{ $link }}">{{ $link }}</a><br />
    <hr>
{{ end }}
{{ end }}

[swamidass]

It would also be good for reading RSS feeds.

[github-actions]

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