René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Support tables and LaTeX in markdown","articleBody":"Substack node types identified during the markdown-it rewrite (PR #61) that have no current Markdown support. Tables were called out explicitly in that PR as the intended first follow-up.\n\n## Tables\n\nStandard GFM table syntax:\n\n```markdown\n| Column A | Column B |\n| -------- | -------- |\n| Cell 1   | Cell 2   |\n```\n\n## LaTeX / math blocks\n\n`$$...$$` fenced math syntax mapped to Substack's `latex_block` node:\n\n```json\n{\"type\": \"latex_block\", \"attrs\": {\"persistentExpression\": \"E=mc^2\", \"dirty\": true}}\n```\n\nThe `mdit_py_plugins` package ships a `dollarmath` plugin that handles parsing.","author":{"url":"https://github.com/MattFisher","@type":"Person","name":"MattFisher"},"datePublished":"2026-07-03T01:48:36.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/63/python-substack/issues/63"}