#microformats 2022-05-24

2022-05-24 UTC
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[KevinMarks] Didn't Hadley work on dataset description stuff like that?
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@AdrianneMachina Structured data formats are rules that standardize the structure and content of a webpage. Google is asking all of us to surface structured data to their crawlers by marking up our HTML with RDFa and Microformats. https://lttr.ai/xM0n (twitter.com/_/status/1528900407824683008)
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[tantek] someone is reposting some very old copy/pasta I have a feeling
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[fluffy] Smells like SEO spam yeah
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petermolnar I have a strange question: could, with the current tools, an XML file be parsed up with microformats? Trouble is, OPML files contain elements like <outline> and while I could add class= and even href= to them, I fear that because the are not <a> they won't be seen as such.
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jacky petermolnar: that's the blocker
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jacky there _could_ be a case to have a MF2 extension that picks up some expected elements but I don't know what XML vocabular you'd want to restrict it to
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jacky (or use, for that matter)
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petermolnar one doesn't simply restrict a tool to one vocabulary :P :)
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jacky lol
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petermolnar is now tempted to write "Semantic Indieweb: an RDF vocabulary"
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petermolnar ducks
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jacky lol just don't start RDF and a, someone else will appear ;0
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petermolnar out of curiosity, is there a reason behind "u-*" should only be on <a>? Theoretically the logic should be if the class is set to "u-*" and the element has "href".
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petermolnar s/should/could/
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aaronpk What attribute would it pull from for other elements?
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aaronpk u- already has special rules for grabbing different attributes depending on the element and it seems weird to default to always href when the href attribute doesn't exist on many elements
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sknebel petermolnar: people have done h-feeds in atom-feeds I think
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sknebel but it didnt work in all parsers
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sknebel I think some checked ocntent-type when fetching or something like that
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petermolnar sknebel: I was wondering if I can mark up my OPML so it passes as a valid h-feed of u-bookmarks :)
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sknebel I guess you might need to put a lot of attributes into their own elements instead
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sknebel if OPML allows that
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sknebel i.e. <thing><href class="u-url">https://...</href></thing> works
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[KevinMarks] OPML wants everything as attributes, not contained content
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sknebel I always am unsure how flexible XML things are with that or not
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petermolnar assume rigid as obsidian
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[KevinMarks] XML tends to validate against a DTD and reject things that don't fit, unless you write a forgiving parser (like Universal Feedparser).
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gRegor There was some discussion about mf2 from XML in an indiewebify.me issue: https://github.com/indieweb/indiewebify-me/issues/78
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Loqi [mro] #78 false negative testing https://try.gogs.io/issue-5008
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gRegor And some linked issues there
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[tantek] or you could use XOXO instead of OPML and convert as necessary for backcompat
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@interstar ↩️ Interesting. As I have your attention, can I check if I understand what it is, exactly? A convention for representing certain data blocks + an API (canonical address to render them?) How does it differ from, say, oEmbed? Microformats? (twitter.com/_/status/1529212485907238912)
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[tantek] or say, semantic HTML to start with?
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@nimimikivuti ↩️ Microdata is an attempt to provide a simpler way of annotating HTML elements with machine-readable tags than the similar approaches of using RDFa and classic microformats. #webdevelopment (twitter.com/_/status/1529214401915387906)
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[tantek] more copy/pasta, that's at least 10 years old text
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[tantek] ah, nm, it's copy/paste of the last sentence of the first paragraph of https://en.wikipedia.org/wiki/Microdata_(HTML)
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[tantek] (which is yes, very old)
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