Render mermaid and katex files#81

Merged

cyanzhong merged 15 commits intomainfrom

copilot/render-mermaid-diagram-file

Mar 20, 2026

Commits on Mar 19, 2026

Initial plan
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Render .mmd files as standalone Mermaid diagrams

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Make .mmd file extension check case-insensitive

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Add renderMermaidDiagram setting and .mermaid extension support

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Add scroll sync line info to standalone Mermaid rendering

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fix: use CodeMirror state.doc.lines for mermaid scroll sync line count

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refactor: move line counting back inside renderMermaid() using state.doc.lines

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fix: only access editorView.state.doc.lines when lineInfo is true

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nit-picking
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Rename setting to renderFileAsMermaid, await pluginsReady, add README docs, fix test mocks

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refactor: separate config check from isMermaidFile() into call site

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cyanzhong
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