fix(ui): parse nested frontmatter maps and arrays of maps - #1548
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backnotprop merged 4 commits intoSep 21, 2026
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extractFrontmatter hoisted indented child keys to the root, clobbering same-named keys and rendering wrong values. Parse nested maps and arrays of maps; flat frontmatter renders byte-identically. Closes backnotprop#1485.
A line starting and ending with a quote was rejected wholesale, so
`"title": "Doc"` parsed to {} and the row disappeared from the
frontmatter card. Accept a quoted KEY followed by `:` (plus the same
space-after-colon rule the unquoted branch applies); a line that is only
a quoted scalar is still not an entry.
Also record an array item's pending key at the key's own column
(lineIndent + 2) rather than the dash's, so a nested map used as an
item's first key no longer swallows the item's later sibling keys.
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extractFrontmattertrimmed every line, so indented child keys (generated:/by:/at:,verified:/sources:arrays of maps) hoisted to the document root, where same-named keys clobbered each other and the card rendered wrong-but-complete-looking values.The parser is now indentation-aware: nested maps stay grouped, arrays of maps group per item, and flat scalars, string arrays, block scalars (
|/>), and CRLF all behave as before.FrontmatterCardrenders nested structures recursively (flat frontmatter renders exactly as today).Testing:
bun test packages/ui/utils/parser.test.ts(197 pass, incl. 6 new nested-structure tests + regressions), fullbun run typecheckclean.Closes #1485.