I am trying to cobble together a plugin that will support simple sequence diagrams in posts. For example, this: [seqdiagram] A->B:one B->A:two [/seqdiagram] Would result in this: [image] The JS Sequence Diagram library handles the text–>svg function, so my first attempt is to simply wrap that …

I managed to make some progress by removing replaceBlock and simply doing the transform myself in the dialect. I also switched to addPreProcessor() and this seems to work ok for the preview window, but the main post still has some problems: [image] There also seems to be some debounce affect tha…

Any advice or examples we can offer here @eviltrout ?

Thanks! @eviltrout let me know if you have any plugins that I can look to for guidance. I know you recently made a lot of changes to the rendering engine, its possible I am following out-of-date plugin examples.

The details dialect seems quite similar to this. It uses addPreProcessor as well and it seems to work. I might be able to help debug further if you share the code so far in a public place such as a github repo.

Great, I posted the project here: GitHub - nskerl/discourse-sequence-diagram · GitHub Thanks so much.

Looks like your problem is your regular expression in your whitelist was a global. Global regular expressions will retain state on repeated calls based on the last index, so every second call was failing. An easy fix is to change it to: Discourse.Markdown.whiteListTag('div', 'class', 'discourse-se…

wow, yea that would explain the every other keystroke issue. Thanks, ill try this tonight.

Thanks again, that fixed the first issue. Do you have any idea what would cause the rendering to be different between the editor preview (which looks good) and the cooked content? It doesnt look like tags are being stripped anywhere that I can see; the svg output simply has different dimensions wh…

Have a look at the CookedPostProcessor class. lib/cooked_post_processor.rb main @post.topic_id, Post.types[:regular], ) .order("post_number DESC") .limit(1) .pluck(:cooked) …

Doesn’t that only act on <img> tags? It does look suspect though, will continue researching lib/cooked_post_processor.rb main @doc .css("aside.quote") .each do |q| post_number = q["data-post"] topic_id = q["da…

Help debugging Sequence Diagram plugin

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eviltrout (Robin Ward) April 1, 2016, 3:24pm 13

Can you provide more details? How is it acting on the SVG? An example would be good.

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Help debugging Sequence Diagram plugin

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