feat(messages): render bodies as markdown with syntax-highlighted code

nrupard commented

2026-05-11 20:30:04 +02:00

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Message bodies are now parsed as CommonMark with strikethrough, tables, and task list extensions, then rendered through pulldown_cmark. Fenced code blocks are syntax-highlighted server-side via syntect (default-fancy feature, no oniguruma) and emit inline-styled

blocks so no separate stylesheet ships with them.

The existing chat pipeline (mention chips, custom emoji shortcodes, bare-URL linkification) runs on inline text events only, so it never touches the contents of fenced code blocks or inline code spans. Raw HTML and inline HTML events are dropped from the parse stream so user input cannot smuggle markup. Soft breaks become hard breaks because chat users expect typed newlines to render as line breaks.

The message and thread-reply templates swap whitespace-pre-wrap for an lc-md class. main.css gains minimal typography rules for paragraphs, lists, blockquotes, headings, tables, inline code, and code blocks, scoped to .lc-md so the rest of the app is unaffected.

Co-Authored-By: Claude Opus 4.7 (1M context) noreply@anthropic.com

Message bodies are now parsed as CommonMark with strikethrough, tables, and task list extensions, then rendered through pulldown_cmark. Fenced code blocks are syntax-highlighted server-side via syntect (default-fancy feature, no oniguruma) and emit inline-styled <pre> blocks so no separate stylesheet ships with them. The existing chat pipeline (mention chips, custom emoji shortcodes, bare-URL linkification) runs on inline text events only, so it never touches the contents of fenced code blocks or inline `code` spans. Raw HTML and inline HTML events are dropped from the parse stream so user input cannot smuggle markup. Soft breaks become hard breaks because chat users expect typed newlines to render as line breaks. The message and thread-reply templates swap `whitespace-pre-wrap` for an `lc-md` class. main.css gains minimal typography rules for paragraphs, lists, blockquotes, headings, tables, inline code, and code blocks, scoped to `.lc-md` so the rest of the app is unaffected. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

nrupard added 1 commit

2026-05-11 20:30:04 +02:00

feat(messages): render bodies as markdown with syntax-highlighted code

Check / clippy + fmt + tests (pull_request) Failing after 49s

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289d86ad7e

Message bodies are now parsed as CommonMark with strikethrough, tables, and task list extensions, then rendered through pulldown_cmark. Fenced code blocks are syntax-highlighted server-side via syntect (default-fancy feature, no oniguruma) and emit inline-styled <pre> blocks so no separate stylesheet ships with them.

The existing chat pipeline (mention chips, custom emoji shortcodes, bare-URL linkification) runs on inline text events only, so it never touches the contents of fenced code blocks or inline `code` spans. Raw HTML and inline HTML events are dropped from the parse stream so user input cannot smuggle markup. Soft breaks become hard breaks because chat users expect typed newlines to render as line breaks.

The message and thread-reply templates swap `whitespace-pre-wrap` for an `lc-md` class. main.css gains minimal typography rules for paragraphs, lists, blockquotes, headings, tables, inline code, and code blocks, scoped to `.lc-md` so the rest of the app is unaffected.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

nrupard merged commit 85fbe2b608 into main

2026-05-11 20:30:11 +02:00

nrupard deleted branch feat/markdown-rendering

2026-05-11 20:30:11 +02:00

nrupard referenced this pull request from a commit

2026-05-11 20:30:13 +02:00

Merge pull request 'feat(messages): render bodies as markdown with syntax-highlighted code' (#73) from feat/markdown-rendering into main

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feat(messages): render bodies as markdown with syntax-highlighted code #73