Bug: < and > are removed in markdown code snippets

[markstamer]

I stumbled across an issue where a code snippet in a markdown file, such as, func store(in set: inout Set<AnyCancellable>) { } is rendered as func store(in set: inout Set) { }. The generic type is simple removed from the Set. Unfortunately I could find the issue in the Ignite framework or if this is an issue with swift-markdown.

[twostraws]

I think this might affect all Markdown libraries, because it's seeing them as HTML. For example, if I paste that same thing into iA Writer on my Mac (my Markdown editor), it does exactly the same thing.

[markstamer]

Outch, so writing an article about Swift generics using the markdown content approach of Ignite could be a bit of a problem.

[markstamer]

I don't have iA Writer to see it for myself but in VSCode previews it works. Maybe there is a misunderstanding in that I meant the code is either inline code or in a code block. Being able to display HTML code in a code block should be working in every Markdown library?

[alexito4]

I've also had some issues with Swift code, specially a for loop with x..<y. I've been digging a bit and it seems that even tho the that code is inside a <pre> tag, that doesn't stop browsers from trying to parse html tags inside it. I've found that changing

Ignite/Sources/Ignite/Rendering/Markdown/MarkdownToHTML.swift

Line 126 in 02c14ae

#"<pre><code class="language-\#(language.lowercased())">\#(codeBlock.code)</code></pre>"#

to escape the string from codeBlock.code solves the problems.
It's interesting that there are no more reports of this issue so maybe my conclusions are wrong.

[markstamer]

That's a great finding. I will try it out at times and maybe we can figure something out on how to fix it for Ignite.