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Spell the alt rule in the flavour both directions read
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Lilleman auf Larv
2026-08-31 22:33:21 +02:00
parent 1c15c7dabe
commit 3349b81b5a
2 changed files with 12 additions and 6 deletions
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spec/flavour.md
+2 -1
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@@ -245,7 +245,8 @@ The moon, at night.
**The CommonMark image.** A paragraph whose entire inline content is one image `![alt](url)` is **The CommonMark image.** A paragraph whose entire inline content is one image `![alt](url)` is
a `mediaSingle` with attrs exactly `{"layout":"center"}` holding an `external` `media` — `url` a `mediaSingle` with attrs exactly `{"layout":"center"}` holding an `external` `media` — `url`
from the destination, `alt` the description's plain-text content when non-empty. `adfToMarkdown` from the destination, `alt` the description's plain-text content when non-empty — a link or image
inside it contributing its own text, and a break of either kind a space. `adfToMarkdown`
emits the image form for exactly that shape — those attrs and no others, no marks on either emits the image form for exactly that shape — those attrs and no others, no marks on either
node, no caption, and a `media` carrying nothing beyond `alt`, `type` and `url` — and only where node, no caption, and a `media` carrying nothing beyond `alt`, `type` and `url` — and only where
CommonMark spells the pair: a destination or a description the image form cannot hold, an empty CommonMark spells the pair: a destination or a description the image form cannot hold, an empty
src/markdown/parse/inline-content.ts
+9 -4
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@@ -250,7 +250,6 @@ function closeImage(scan: Scan, at: number, inner: readonly Piece[], definition:
return success(null) return success(null)
} }
// spec/flavour.md: the description's plain-text content, where a break of either kind reads as a space.
function imageAlt(inner: readonly Piece[]): string { function imageAlt(inner: readonly Piece[]): string {
return resolveNodes(inner) return resolveNodes(inner)
.map((node) => (node.type === 'hardBreak' ? ' ' : (node.text ?? ''))) .map((node) => (node.type === 'hardBreak' ? ' ' : (node.text ?? '')))
@@ -268,10 +267,16 @@ function resolveNodes(pieces: readonly Piece[]): AdfNode[] {
// Only `imageAlt` reaches the image arm: everywhere else an image amid other content is refused first. // Only `imageAlt` reaches the image arm: everywhere else an image amid other content is refused first.
function pieceNodes(piece: Piece): AdfNode[] { function pieceNodes(piece: Piece): AdfNode[] {
if (piece.kind === 'nodes') return piece.nodes switch (piece.kind) {
if (piece.kind === 'open') return bracketNodes(piece) case 'image':
if (piece.kind === 'image') return piece.alt === '' ? [] : [{ text: piece.alt, type: 'text' }] return piece.alt === '' ? [] : [{ text: piece.alt, type: 'text' }]
case 'nodes':
return piece.nodes
case 'open':
return bracketNodes(piece)
case 'run':
return [] return []
}
} }
function delimiterRuns(pieces: readonly Piece[]): Run[] { function delimiterRuns(pieces: readonly Piece[]): Run[] {