Spell every document the emitter refused for a carriage return, a null character, a code-span line start or an empty text node #160

Merged
lilleman merged 11 commits from spell-every-refusal into main 2026-10-04 21:13:54 +02:00
32 changed files with 326 additions and 249 deletions
+9
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@@ -17,6 +17,15 @@
`content` or `marks` is spelled `{attrs=empty}`, `{content=empty}` or `{marks=empty}`, `-0` is
spelled `-0`, and a `codeBlock` of several text nodes is a fence per node. A `codeBlock` holding
other than plain text nodes rides the block carry, where it was refused.
- **Breaking:** `unspellable-character` and `unspellable-line-start` leave `ConvertErrorCode`, and
`adfToMarkdown` no longer returns `unspellable-whitespace`. A carriage return in text is spelled
`
` and a null character `!adf:text{text="\u0000"}`; a paragraph line opening with a code span
is spelled as that code span, its backticks opening no fence; a code block holding either
character, a code span holding a null character, a text node holding no text or holding
`content`, and an `emoji`, `mention` or `status` whose `text` holds a line ending or a null
character ride the carry. See `MIGRATION.md`.
- Fix a link `title` holding a null character: it is written as `!adf:link[text]{attrs}`, where it
read back as U+FFFD.
- **Breaking:** `unspellable-link` leaves `ConvertErrorCode`; a link whose `href` or `title` no
CommonMark escape spells is written as `!adf:link[text]{attrs}`.
- **Breaking:** some directive refusals carry `malformed-directive` where they carried
+10 -2
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@@ -62,12 +62,20 @@ Markdown the spelling table leaves alone, which `0.2.0` reads as a different doc
### Error codes
`unspellable-link` leaves `ConvertErrorCode`: a `switch` naming it stops compiling, and the link
it named converts.
`unspellable-character`, `unspellable-line-start` and `unspellable-link` leave `ConvertErrorCode`:
a `switch` naming one stops compiling. A document `adfToMarkdown` refused with one of them now
converts; markdown the parser refused with one of them now refuses with the code the table gives.
| Input | `0.1.0` | `0.2.0` |
| --- | --- | --- |
| a link whose `href` or `title` no CommonMark escape spells, on emit | `unspellable-link` | spells `!adf:link[text]{attrs}` |
| a carriage return in text, on emit | `unspellable-character` | spells `
` |
| a null character in text, on emit | `unspellable-character` | spells `!adf:text{text="\u0000"}` |
| a carriage return or null character in a code block, or a null character in a code span, on emit | `unspellable-character` | rides the carry |
| a paragraph line opening with a code span of three or more backticks, on emit | `unspellable-line-start` | spells the code span |
| a block directive whose CommonMark spelling holds a carriage return, a null character or a code span opening a line, on parse | `unspellable-character`, `unspellable-line-start` | `unsupported-node-shape`; write the CommonMark spelling |
| an `emoji`, `mention` or `status` whose `text` holds a line ending or a null character, on emit | `unspellable-whitespace`, `unspellable-character` | rides the inline carry |
| a text node holding no text, or holding `content`, on emit | `unsupported-node-shape` | rides the carry |
| a `codeBlock` holding other than plain text nodes, on emit | `unsupported-node-shape` | rides the block carry |
| a leaf node given a body (`media`, `listBreak`) | `unsupported-node-shape` | `malformed-directive` |
| a node with a block body written as a leaf (`panel`) | `unsupported-node-shape` | `malformed-directive` |
+6 -11
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@@ -180,6 +180,7 @@ Parsing — `markdownToAdf` and `plainMarkdownToAdf`, and `htmlToAdf` at `0.2.0`
| `unknown-directive-name` | a directive whose name is no node or mark this version spells | check the name in `spec/flavour.md`, or escape the prefix as `\!adf:`; the spelling itself is well formed, so a later minor may give the name meaning |
| `unmappable-html` | the input holds an HTML construct the documented element set does not map, a comment and a processing instruction among them — at this version that is every raw HTML construct in markdown, the element set landing at `0.2.0` | remove the construct, or write what it holds in the lossless flavour |
| `unmappable-image` | an image sits inside other content that is not another image's description, or carries a title | give the image a paragraph of its own and drop the title |
| `unspellable-whitespace` | an `emoji`, `mention` or `status` directive's content slot spells a newline or a carriage return — `
`, `
`, `!adf:text{text="\n"}` | replace it with a space, or write the node as `!adf:carry` — an inline directive never spans lines |
Emitting — `adfToMarkdown`, and `adfToHtml` at `0.2.0`:
@@ -194,11 +195,8 @@ emit refuses:
| Code | Fires when | What you can do |
| --- | --- | --- |
| `unspellable-character` | text or a code block holds a carriage return or a null character, which CommonMark rewrites wherever it sits | strip or replace the character; no escape carries it through the round-trip |
| `unspellable-line-start` | a paragraph line begins with a code span whose backticks would read back as a code fence | put any text before the code span |
| `unspellable-whitespace` | an `emoji`, `mention` or `status` holds a newline in the text its inline directive spells in the content slot | replace it with a space — an inline directive never spans lines |
| `unsupported-nesting-depth` | blocks, marks, an attribute's JSON or a carried node's JSON nest past 500 levels | keep the ADF and pass the document over, or show it read-only; flatten the input where you are the one who wrote it |
| `unsupported-node-shape` | a node carries an attribute, value, argument or body its type does not take, or lacks one it needs — or markdown writes as a directive a node or mark the lossless flavour spells as CommonMark, or a reserved directive stands out of place: `!adf:textBreak{}` or `!adf:listBreak` parting nothing, `!adf:doc` anywhere but as the whole document | fix what the message names; `spec/flavour.md` lists every type's attributes and body |
| `unsupported-node-shape` | parsing: markdown spells a node with an attribute, value, argument or body its type does not take, or without one it needs, writes as a directive a node or mark the lossless flavour spells as CommonMark, or puts a reserved directive out of place: `!adf:textBreak{}` or `!adf:listBreak` parting nothing, `!adf:doc` anywhere but as the whole document. Emitting: a node carrying one mark type twice, a block or a non-text inline node holding `text`, or a leaf block or a non-text inline node holding `content` | fix what the message names; `spec/flavour.md` lists every type's attributes and body |
## The guarantees
@@ -217,9 +215,7 @@ Serves Goals 1, 3 and 4.
`spec/flavour.md`) — and one gap: a CommonMark image fits only as its own title-less paragraph;
mid-text and titled images are error results, save an image inside another's description, which
flattens into the alt text. Converting back yields the library's canonical spelling, which
round-trips byte-identically — where it converts back at all: a parse succeeding is no promise of
that, so keep the source until the way back succeeds. ``` ` `` ` ``` reads cleanly and then
refuses.
round-trips byte-identically.
- Four CommonMark spellings parse without an error and build a document the reference
implementation renders differently: `[](/url)` and `[]()` stay literal text against CommonMark's
empty link, a list continuing past a marker change stays one list against CommonMark's two, a
@@ -228,10 +224,9 @@ Serves Goals 1, 3 and 4.
text, which the spec requires and the reference itself breaks, nesting one `<a>` in the other.
The first three are pinned `pending` in `corpus/commonmark-spec/exceptions.json`; the suite
holds no example of the fourth.
- Not every document converts back: `adfToMarkdown` is partial on valid ADF — a text node holding
a carriage return, or a paragraph line beginning with a code span whose backticks read back as a
fence. Show the refusal and keep the document read-only; saving markdown you could not produce
is the loss the round-trip exists to stop.
- Not every document converts back: `adfToMarkdown` refuses a document nesting past 500 levels, and
the node shapes the `unsupported-node-shape` row lists. Show the refusal and keep the document
read-only; saving markdown you could not produce is the loss the round-trip exists to stop.
- The pipe table narrows GFM's twice: every row opens with a pipe, so GFM's bare form is an error
result rather than the prose it reads as, and an alignment colon in the delimiter row is an
error too — ADF holds no column alignment. The trailing pipe is canonical output, optional in
+1 -1
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@@ -16,7 +16,7 @@ One directory per contract kind:
is the suite; `refusals.json` pins each refusing example to its error `code`; `exceptions.json`
pins each known divergence by `check`, `example`, `kind` and the exact `divergence`, with a
`reason`. `kind` is `mark-model` (the permanent count divergence from ADF's mark-per-text-node
model), `unspellable` (parses but the flavour has no spelling) or `pending` (a parser gap).
model) or `pending` (a parser gap).
JSON is two-space indent, keys sorted, and a document read back must deep-equal the fixture's
(`docs/decisions.md` §Equality is deep). `spec.json` is the vendored, upstream machine-readable
-21
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@@ -13,27 +13,6 @@
"kind": "pending",
"reason": "A list continuing past a marker change renders as two lists, the parser opens one."
},
{
"check": "fixpoint",
"divergence": "unspellable-line-start",
"example": 330,
"kind": "unspellable",
"reason": "A paragraph opens with a code span whose backticks read back as a fence."
},
{
"check": "fixpoint",
"divergence": "unspellable-line-start",
"example": 331,
"kind": "unspellable",
"reason": "A paragraph opens with a code span whose backticks read back as a fence."
},
{
"check": "fixpoint",
"divergence": "unspellable-line-start",
"example": 340,
"kind": "unspellable",
"reason": "A paragraph opens with a code span whose backticks read back as a fence."
},
{
"check": "count",
"divergence": "em 2/1",
@@ -0,0 +1,15 @@
{
"content": [
{
"content": [
{
"text": "a\r\nb",
"type": "text"
}
],
"type": "codeBlock"
}
],
"type": "doc",
"version": 1
}
@@ -0,0 +1,10 @@
```adf:codeBlock
{
"content": [
{
"text": "a\r\nb",
"type": "text"
}
]
}
```
@@ -0,0 +1,20 @@
{
"content": [
{
"content": [
{
"marks": [
{
"type": "code"
}
],
"text": "``",
"type": "text"
}
],
"type": "paragraph"
}
],
"type": "doc",
"version": 1
}
@@ -0,0 +1 @@
``` `` ```
@@ -0,0 +1,43 @@
{
"content": [
{
"content": [
{
"text": "a\r\nb\u0000c",
"type": "text"
},
{
"marks": [
{
"attrs": {
"href": "https://example.com/",
"title": "t\u0000"
},
"type": "link"
}
],
"text": "link",
"type": "text"
}
],
"type": "paragraph"
},
{
"content": [
{
"attrs": {
"color": "neutral",
"text": "a\nb"
},
"type": "status"
},
{
"type": "text"
}
],
"type": "paragraph"
}
],
"type": "doc",
"version": 1
}
@@ -0,0 +1,3 @@
a&#13;!adf:text{text="\n"}b!adf:text{text="\u0000"}c!adf:link[link]{href="https://example.com/" title="t\u0000"}
!adf:carry{json="{\"attrs\":{\"color\":\"neutral\",\"text\":\"a\\nb\"},\"type\":\"status\"}"}!adf:carry{json="{\"type\":\"text\"}"}
+19 -20
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@@ -23,13 +23,11 @@ sanitized and a mention keeps the test user's real account id.
## Markdown in is a canonical fixpoint
2026-08-23, the maintainer. Goals 1 and 4. Valid while markdown input may be written by hand.
2026-08-23, the maintainer; every parsed document has converted back since 2026-10-04. Goals 1 and
4. Valid while markdown input may be written by hand.
The other direction is a canonical fixpoint, not byte-identity: human markdown normalizes, the way
back yields the library's canonical spelling, and that spelling round-trips byte-identically —
where there is a way back. CommonMark spells some things the flavour has no escape for — a
paragraph opening with a code span whose backticks read back as a fence — so a parse succeeding
does not imply a spellable document; `corpus/commonmark-spec/exceptions.json` names those.
back yields the library's canonical spelling, and that spelling round-trips byte-identically.
## Equality is deep
@@ -338,8 +336,9 @@ switches on `code` with no `default`.
`unsupported-node-shape` — since a code no input reaches is one no consumer can switch on
(2026-09-20).
- A refusal no spelling recovers from is a gap in the flavour rather than a code: give the flavour
the spelling and the code goes (`unspellable-link`, 2026-09-13). A cause the carry answers gets
no code: a mark no spelling writes rides the carry with its node.
the spelling and the code goes (`unspellable-link`, 2026-09-13; `unspellable-character` and
`unspellable-line-start`, 2026-10-04). A cause the carry answers gets no code: a mark no
spelling writes rides the carry with its node.
## Which code a cause takes
@@ -348,11 +347,10 @@ handles one cause alike whichever node, attribute or direction raised it.
- A code names the cause; where one cause recurs across node types, across one mark's attributes
or across directions, one code covers them all and `path` and `message` say which —
`unsupported-nesting-depth` is the 500-level guard whichever direction hits it,
`unspellable-character` the text node and the code block alike. Where two codes stay apart, the
line between them is what they name: `unspellable-character` is a character CommonMark rewrites
wherever text holds it, `unspellable-whitespace` the newline no inline directive's content slot
spans, in either direction.
`unsupported-nesting-depth` is the 500-level guard whichever direction hits it.
`unspellable-whitespace` is the newline an inline directive's content slot spells in input; the
emitter carries such a node. A null character in that slot is `unsupported-node-shape`, since
`unspellable-whitespace` does not read true of it (2026-10-04).
- A claim code names the spelling claimed, never the node that spelling would have built: a
malformed `!adf:table` is a `malformed-directive`, and an alignment colon a
`malformed-pipe-table` — the flavour's own delimiter row is `-` runs, so the grammar refuses the
@@ -495,16 +493,17 @@ exits 0 on.
2026-10-03, the maintainer. KISS, a technical principle, and its comprehension floor of 7. Valid
while `todo.md` items 59, 60, 61 and 62 are open.
A four-seat comprehension panel scored the project under the floor of 7. Its round-5 scores
(2026-10-03) are the baseline. Since 2026-10-04, a chunk whose panel scores any dimension lower
A four-seat comprehension panel scored the project under the floor of 7. Its scoring run of
2026-10-04 is the baseline. Since 2026-10-04, a chunk whose panel scores any dimension lower
improves what the seats named and scores again, and after three such rounds asks the maintainer.
| Seat | Navigation | Locality | Shape | Self-sufficiency | Overall |
|---|---|---|---|---|---|
| Junior | 6 | 5 | 6 | 5 | 5.5 |
| Mid | 6.5 | 5 | 6 | 4.5 | 5.5 |
| Senior | 6.5 | 5.5 | 6.5 | 5.5 | 6 |
| Architect | 6.5 | 5.5 | 6 | 6 | 6 |
| Junior | 7 | 5.5 | 6.5 | 6 | 6 |
| Mid | 7 | 5.5 | 6.5 | 6 | 6 |
| Senior | 7 | 5.5 | 6.5 | 5.5 | 6 |
| Architect | 7 | 5.5 | 6 | 6 | 6 |
| Mean | 7.00 | 5.50 | 6.38 | 5.88 | 6.00 |
Three panels on near-identical code scored overall means of 5.88, 5.75 and 5.75, and a seat moves
±0.5 between runs.
@@ -525,8 +524,8 @@ Each example is a named error or markdown that parses and emits to itself byte f
reference HTML's text, tags stripped and entities decoded, equals the parsed document's; and its
elements count the marks and nodes they map to. The fixpoint alone passes a parser returning the
empty document, the text alone one dropping every emphasis. An exception is the maintainer's to
add, and valid CommonMark parsing to a document `adfToMarkdown` refuses where a spelling could exist
is a bug to fix, never an exception.
add, and valid CommonMark parsing to a document `adfToMarkdown` refuses is a bug to fix, never an
exception.
## The flavour spec is read as a source
+22 -17
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@@ -245,7 +245,8 @@ form.
leaves empty, or in both, is a named error, and so are fences whose info strings differ and an
empty fence beside another. Each fence is an ordinary code block, and its info string decodes
escapes and entity references as any other does. A node holding a child no fence holds — any but
a text node carrying no marks, `attrs` or `content` — rides the block carry.
a text node holding text free of carriage returns and null characters, and carrying no marks,
`attrs` or `content` — rides the block carry.
- `heading` — container, inline body. Attributes: `level` (number), `localId` (string). `level` is
the `#` count, so a heading carrying none, or one that is no whole number from 1 to 6, has no
CommonMark spelling.
@@ -449,6 +450,8 @@ the nodes below, `emoji`, `mention` and `status` spell their `text` attribute in
plain text: `[]` is the empty string, absent content is the absent attribute, non-empty content
parsing to anything but one text node carrying neither marks, attributes nor content is a named
error, and so is a `text` key in `{attrs}`. An enclosing mark spelling does not reach into the slot.
An `emoji`, `mention` or `status` whose `text` attribute holds a line ending or a null character
rides the inline carry; a content slot spelling one is a named error.
The rest take no content, `!adf:text` included; content on a node that takes none is a named error.
- `date` — Attributes: `localId` (string), `timestamp` (string, epoch milliseconds).
@@ -471,14 +474,15 @@ The rest take no content, `!adf:text` included; content on a node that takes non
Shipped !adf:emoji[🎉]{shortName=":tada:"} on !adf:date{timestamp=1756080000000}.
```
**Whitespace CommonMark cannot hold.** A newline inside a text node, and a space or tab where
CommonMark strips or refuses one — a block's inline content edges, either side of a line break, an
em, strong or strike spelling's inner edges, a pipe cell's edges — is spelled `!adf:text{text="…"}`,
the reserved key carrying the node's text, escaped by the attribute grammar and never literal: pipe
cells trim and pad. The emitter wraps the whitespace run alone and leaves the rest plain text, which
the spelled run joins on reading. Input reads that spelling alone: the value is one run of spaces
and tabs, or one run of newlines, and anything else — a mixed run, or text CommonMark carries
plainly — is a named error.
**Text CommonMark cannot hold plainly.** A carriage return in text is `&#13;`, which CommonMark
reads back as the character. Three things are spelled `!adf:text{text="…"}`: a newline inside a text
node; a null character, which CommonMark reads as U+FFFD; and a space or tab where CommonMark strips
or refuses one — a block's inline content edges, either side of a line break, an em, strong or
strike spelling's inner edges, a pipe cell's edges. The reserved key carries the node's text,
escaped by the attribute grammar and never literal: pipe cells trim and pad. The emitter wraps the
run alone and leaves the rest plain text, which the spelled run joins on reading. Input reads that
spelling alone: the value is one run of spaces and tabs, one run of newlines, or one run of null
characters, and anything else — a mixed run, or text CommonMark carries plainly — is a named error.
```
!adf:text{text=" "}Two leading spaces held, and one text node split!adf:text{text="\n"}over two lines.
@@ -489,8 +493,8 @@ carried, neither holds `attrs` or an empty key, and their marks are identical, a
The reserved leaf `!adf:textBreak{}` parts such a pair, inside every mark spelling the two share; a
code span holds no directive, so it closes and reopens. It builds no node and reads only between
two such nodes: elsewhere, or with `[content]` or `{attrs}`, it is a named error (`docs/decisions.md`
§`!adf:textBreak{}` parts text CommonMark would join). A text node holding `attrs` or an empty key
rides the inline carry.
§`!adf:textBreak{}` parts text CommonMark would join). A text node holding `attrs`, `content` or an
empty key, or holding no text, rides the inline carry.
```
Hello, !adf:textBreak{}world — **Hello, !adf:textBreak{}world** — `a`!adf:textBreak{}`b`
@@ -531,12 +535,13 @@ breaks at every node the emitter carries, so no emitted carry sits inside a mark
An inline node whose marks no nesting spells — a mark type not listed here, an attrs key its
spelling does not list, a value that is not the spelling's type, an attribute the spelling needs and
the mark lacks, an empty `attrs` on a mark CommonMark spells, an order putting a code span outside
another mark, `code` over anything but a text node or over text holding a newline, or a spelling
CommonMark's flanking rules cannot open or close where the run sits (`un**-real**istic`), or one
CommonMark's matching pairs elsewhere — the intra-word `*` runs together with a neighbouring `**`,
and the multiple-of-3 rule can leave the merged run's pairing to another delimiter — rides the
inline carry whole. An opaque carry inside a mark spelling is a named error in input: the carry
restores its node exactly, marks included (`docs/decisions.md` §Unknown nodes ride the carry).
another mark, `code` over anything but a text node holding text, or over text holding a line ending
or a null character, or a spelling CommonMark's flanking rules cannot open or close where the run
sits (`un**-real**istic`), or one CommonMark's matching pairs elsewhere — the intra-word `*` runs
together with a neighbouring `**`, and the multiple-of-3 rule can leave the merged run's pairing to
another delimiter — rides the inline carry whole. An opaque carry inside a mark spelling is a named
error in input: the carry restores its node exactly, marks included (`docs/decisions.md` §Unknown
nodes ride the carry).
```
!adf:textColor[**Overdue**]{color="#ae2e24"}, H!adf:subsup[2]{type=sub}O, !adf:underline[signed].
+1 -1
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@@ -65,7 +65,7 @@ export function emptyKeys(held: { attrs?: AdfAttributes; content?: AdfNode[]; ma
return keys
}
// A format spells this node as text; anything more rides a carry, save content, which is refused.
// No attrs, content or empty marks; a format may spell this node as text, and anything more rides a carry.
export function isBareText(node: AdfNode): boolean {
return node.type === 'text' && node.attrs === undefined && node.content === undefined && node.marks?.length !== 0
}
+2 -2
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@@ -34,11 +34,11 @@ function shownText(nodes: readonly AdfNode[]): string[] {
return shown.filter((text) => text !== '')
}
test('a generated document refuses to emit, or its markdown reads back to it', { timeout: propertyTimeout }, () => {
test('a generated document emits markdown that reads back to it', { timeout: propertyTimeout }, () => {
fc.assert(
fc.property(adfDocument, (document) => {
const emitted = adfToMarkdown(document)
if (!emitted.ok) return
assert.ok(emitted.ok, emitted.ok ? '' : `${emitted.error.code}: ${emitted.error.message}`)
const read = markdownToAdf(emitted.value)
assert.ok(read.ok, read.ok ? '' : `${read.error.code}: ${read.error.message} — reading ${JSON.stringify(emitted.value)}`)
assert.deepEqual(read.value, document, `reading ${JSON.stringify(emitted.value)}`)
+4 -4
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@@ -13,7 +13,7 @@ const root = join(dirname(fileURLToPath(import.meta.url)), '..', '..', 'corpus',
const checks = ['count', 'fixpoint', 'text'] as const
type Check = (typeof checks)[number]
type ExceptionKind = 'mark-model' | 'pending' | 'unspellable'
type ExceptionKind = 'mark-model' | 'pending'
type SpecExample = { example: number; html: string; markdown: string; section: string }
@@ -30,7 +30,7 @@ function isCheck(value: unknown): value is Check {
}
function isKind(value: unknown): value is ExceptionKind {
return value === 'mark-model' || value === 'pending' || value === 'unspellable'
return value === 'mark-model' || value === 'pending'
}
function isSpecExample(value: unknown): value is SpecExample {
@@ -77,12 +77,12 @@ test('the CommonMark spec suite is 0.31.2, vendored byte-exact', () => {
assert.equal(digest, 'd431b29d97b6f73e69d547109cf5081578fac931e72afe95639ebe766c1b2a20')
})
test('every exception is unique, names a parsing example, and files a fixpoint only as unspellable', () => {
test('every exception is unique, names a parsing example, and files no fixpoint divergence', () => {
assert.equal(exceptionIndex.size, exceptions.length, 'one exception repeats an example and check another holds')
for (const entry of exceptions) {
assert.ok(spec.some((candidate) => candidate.example === entry.example), `exception ${entry.example} names no example in the suite`)
assert.equal(exampleToRefusal.get(entry.example), undefined, `exception ${entry.example} is on the refusal list, not an exception`)
if (entry.check === 'fixpoint') assert.equal(entry.kind, 'unspellable', `exception ${entry.example} files a fixpoint divergence as ${entry.kind}; a fixable hole is given the spelling instead`)
assert.notEqual(entry.check, 'fixpoint', `exception ${entry.example} files a fixpoint divergence; the emitter spells every document the parser builds`)
}
})
+2 -2
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@@ -418,7 +418,7 @@ function holdsDirectiveShape(document: AdfDocument): boolean {
return false
}
test('generated markdown refuses, or what it parses to refuses to emit, or its spelling reads back and spells itself', { timeout: propertyTimeout }, () => {
test('generated markdown refuses, or its spelling reads back and spells itself', { timeout: propertyTimeout }, () => {
const parameters = propertyRuns(gateRuns)
let directiveShaped = 0
let fixpoints = 0
@@ -427,7 +427,7 @@ test('generated markdown refuses, or what it parses to refuses to emit, or its s
const parsed = markdownToAdf(input)
if (!parsed.ok) return
const emitted = adfToMarkdown(parsed.value)
if (!emitted.ok) return
assert.ok(emitted.ok, emitted.ok ? '' : `${emitted.error.code}: ${emitted.error.message} — spelling ${JSON.stringify(input)}`)
fixpoints += 1
if (holdsDirectiveShape(parsed.value)) directiveShaped += 1
const read = markdownToAdf(emitted.value)
+2 -2
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@@ -24,7 +24,7 @@ export const propertyTimeout = 600000
const depthIdentifier = fc.createDepthIdentifier()
const emptyCell: AdfNode = { content: [{ type: 'paragraph' }], type: 'tableCell' }
const flatCommonMarkShapeWeight = 4
export const markdownPieces = fc.constantFrom(...'aZ09 \t\n!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~é\xa0🎉日ー한𠀀', '==', '[!NOTE]', '[x]', 'ab:', 'http://', directivePrefix, `${directivePrefix}a[`, `${directivePrefix}a{`)
export const markdownPieces = fc.constantFrom(...'aZ09 \t\n\r\0!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~é\xa0🎉日ー한𠀀', '==', '[!NOTE]', '[x]', 'ab:', 'http://', directivePrefix, `${directivePrefix}a[`, `${directivePrefix}a{`)
const nestingCommonMarkShapeWeight = 21
const spelledTypes = new Set(['text', ...Object.keys(blockNodes), ...Object.keys(inlineNodes), ...Object.keys(markAttributes)])
@@ -106,7 +106,7 @@ const mark: Arbitrary<AdfMark> = occasionallyEmpty(fc.oneof(
))
const marks = fc.uniqueArray(mark, { maxLength: 3, selector: (held) => held.type })
const textNode = occasionallyEmpty(fc.record({ marks, text }).map((held): AdfNode => ({ ...held, type: 'text' })))
const textNode = occasionallyEmpty(fc.record({ marks, text: fc.oneof({ arbitrary: text, weight: 19 }, { arbitrary: fc.constant(''), weight: 1 }) }).map((held): AdfNode => ({ ...held, type: 'text' })))
const backtickRunNode = fc
.record({ marks: fc.oneof(fc.constant<AdfMark[]>([]), fc.constant<AdfMark[]>([{ type: 'code' }]), marks), text: fc.string({ maxLength: 6, minLength: 1, unit: fc.constantFrom('`', '``', ' ', 'a') }) })
-4
View File
@@ -83,10 +83,6 @@ export function backslashEscape(text: string, index: number): string | undefined
return isAsciiPunctuation(escaped) ? escaped : undefined
}
export function claimsLine(line: string, position: LinePosition): boolean {
return escapesLineClaim(line, 0, position) || orderedListOpener.test(line)
}
export function claimsPipeLine(line: string): boolean {
return pipeClaim.test(line)
}
+2 -2
View File
@@ -1,4 +1,4 @@
import { backslashEscape, decodeTextEscapes, holdsControlCharacter } from './grammar.ts'
import { backslashEscape, decodeTextEscapes, holdsControlCharacter, holdsNullCharacter } from './grammar.ts'
import { holdsEntityReference } from './entity-references.ts'
export type LinkDefinition = { destination: string; title?: string }
@@ -117,5 +117,5 @@ export function escapeUnbalanced(spelling: string, opener: string, closer: strin
}
function spellTitle(title: string): string | undefined {
return /[\n\r\\]/.test(title) || holdsEntityReference(title) ? undefined : ` "${title.replaceAll('"', '\\"')}"`
return /[\n\r\\]/.test(title) || holdsNullCharacter(title) || holdsEntityReference(title) ? undefined : ` "${title.replaceAll('"', '\\"')}"`
}
+5 -5
View File
@@ -1,7 +1,7 @@
import type { AttributeKind, VocabularyPair, VocabularyValue } from '../adf/attribute-vocabulary.ts'
import type { ConvertFault } from '../result.ts'
import type { JsonValue } from '../json-value.ts'
import { backslashEscape } from './commonmark/grammar.ts'
import { backslashEscape, holdsNullCharacter } from './commonmark/grammar.ts'
import { backtickRun, closingBacktickRun } from './commonmark/backtick-runs.ts'
import { isJsonValue, overNested } from '../json-value.ts'
import { largestNesting } from '../nesting.ts'
@@ -100,10 +100,10 @@ export function readSoleStringAttribute(span: DirectiveSpan, key: string): Read<
return { value: spelled.decoded }
}
// Both directions answer alike: an inline directive never spans lines, so no content slot holds a line ending.
export function slotLineEndingFault(type: string, text: string): ConvertFault | undefined {
if (!/[\n\r]/.test(text)) return undefined
return { code: 'unspellable-whitespace', message: `the ${type} content slot holds a newline no inline directive spans` }
// An inline directive never spans lines, and no content slot holds a null character; the emitter carries such a node.
export function slotFault(type: string, text: string): ConvertFault | undefined {
if (/[\n\r]/.test(text)) return { code: 'unspellable-whitespace', message: `the ${type} content slot holds a newline no inline directive spans` }
return holdsNullCharacter(text) ? unsupportedNodeShape(`the ${type} content slot holds a null character: write the node as !adf:carry`) : undefined
}
export function spellAttributes(pairs: readonly (readonly [string, string])[]): string {
+34 -24
View File
@@ -35,7 +35,7 @@ test('names the node a refusal came from, and no source the emitter never read',
const unspellable: AdfNode = { text: 'x', type: 'paragraph' }
const list: AdfNode = { content: [{ content: [paragraph({ text: 'x', type: 'text' })], type: 'listItem' }, { content: [unspellable], type: 'listItem' }], type: 'bulletList' }
assert.deepEqual(path(adfToMarkdown(document(paragraph({ text: 'x', type: 'text' }), list))), ['content', 1, 'content', 1, 'content', 0])
assert.deepEqual(path(adfToMarkdown(document(paragraph({ text: 'x', type: 'text' }, { type: 'text' })))), ['content', 0, 'content', 1])
assert.deepEqual(path(adfToMarkdown(document(paragraph({ text: 'x', type: 'text' }, { text: 'x', type: 'status' })))), ['content', 0, 'content', 1])
assert.deepEqual(path(adfToMarkdown({ type: 'doc', version: 2 })), [])
assert.equal(position(adfToMarkdown(document(paragraph({ text: 'x', type: 'text' }), list))), undefined)
})
@@ -147,8 +147,16 @@ test('carries a mark the canonical spellings cannot nest', () => {
)
})
test('refuses a line whose start block parsing would claim', () => {
assert.equal(code(adfToMarkdown(document(paragraph({ marks: [{ type: 'code' }], text: '```', type: 'text' })))), 'unspellable-line-start')
function readsBack(doc: AdfDocument): string {
const spelled = markdown(adfToMarkdown(doc))
assert.deepEqual(markdownToAdf(spelled), { ok: true, value: doc }, `reading ${JSON.stringify(spelled)}`)
return spelled
}
test('spells a code span opening a line, whose backticks open no fence', () => {
const fence: AdfNode = { marks: [{ type: 'code' }], text: '``', type: 'text' }
assert.equal(readsBack(document(paragraph(fence))), '``` `` ```\n')
assert.equal(readsBack(document(paragraph({ text: 'a', type: 'text' }, { type: 'hardBreak' }, fence))), 'a\\\n``` `` ```\n')
})
test('escapes the delimiter row a hard break leaves opening a pipe table with no leading pipe', () => {
@@ -456,28 +464,26 @@ test('spells a list item whose marker completes a thematic break as a directive'
)
})
test('refuses the characters CommonMark rewrites', () => {
assert.equal(
markdown(adfToMarkdown(document({ content: [{ text: 'a\rb', type: 'text' }], type: 'codeBlock' }))),
'unspellable-character: a codeBlock holds no carriage return CommonMark keeps: this text holds one',
)
assert.equal(
markdown(adfToMarkdown(document(paragraph({ text: 'a\rb', type: 'text' })))),
'unspellable-character: a text node holds a carriage return CommonMark rewrites',
)
assert.equal(code(adfToMarkdown(document(paragraph({ text: 'a\u0000b', type: 'text' })))), 'unspellable-character')
assert.equal(code(adfToMarkdown(document({ content: [{ text: 'a\u0000b', type: 'text' }], type: 'codeBlock' }))), 'unspellable-character')
assert.equal(markdown(adfToMarkdown(document({ content: [{ text: '', type: 'text' }], type: 'codeBlock' }))), 'unsupported-node-shape: a text node holds text: this one has none')
test('spells the characters CommonMark rewrites', () => {
assert.equal(readsBack(document(paragraph({ text: 'a\r\r\nb', type: 'text' }))), 'a&#13;&#13;!adf:text{text="\\n"}b\n')
assert.equal(readsBack(document(paragraph({ marks: [{ type: 'strong' }], text: '\u0000\u0000a\u0000', type: 'text' }))), '**!adf:text{text="\\u0000\\u0000"}a!adf:text{text="\\u0000"}**\n')
assert.equal(readsBack(document(paragraph({ marks: [{ attrs: { href: 'u' }, type: 'link' }], text: 'a\rb\u0000', type: 'text' }))), '[a&#13;b!adf:text{text="\\u0000"}](u)\n')
assert.equal(readsBack(document({ attrs: { level: 1 }, content: [{ text: '\r', type: 'text' }], type: 'heading' })), '# &#13;\n')
assert.equal(readsBack(document({ content: [{ text: 'a\rb', type: 'text' }], type: 'codeBlock' })), '```adf:codeBlock\n{\n "content": [\n {\n "text": "a\\rb",\n "type": "text"\n }\n ]\n}\n```\n')
readsBack(document({ content: [{ text: 'a\u0000b', type: 'text' }], type: 'codeBlock' }))
readsBack(document(paragraph({ marks: [{ type: 'code' }], text: 'a\u0000b', type: 'text' })))
})
test('refuses a text node the spelling would empty out', () => {
test('carries a text node holding no text, or holding content', () => {
const nested: AdfNode[] = [{ text: 'lost', type: 'text' }]
const empty = 'unsupported-node-shape: a text node holds text: this one has none'
const holding = 'unsupported-node-shape: a text node holds no content: this one holds some'
assert.equal(markdown(adfToMarkdown(document(paragraph({ text: '', type: 'text' })))), empty)
assert.equal(markdown(adfToMarkdown(document(paragraph({ marks: [{ type: 'code' }], text: '', type: 'text' })))), empty)
assert.equal(markdown(adfToMarkdown(document(paragraph({ content: nested, text: 'x', type: 'text' })))), holding)
assert.equal(markdown(adfToMarkdown(document(paragraph({ content: nested, marks: [{ type: 'code' }], text: 'x', type: 'text' })))), holding)
assert.equal(readsBack(document(paragraph({ text: '', type: 'text' }))), '!adf:carry{json="{\\"text\\":\\"\\",\\"type\\":\\"text\\"}"}\n')
assert.equal(readsBack(document(paragraph({ type: 'text' }, { text: 'a', type: 'text' }))), '!adf:carry{json="{\\"type\\":\\"text\\"}"}a\n')
readsBack(document(paragraph({ marks: [{ type: 'code' }], text: '', type: 'text' })))
readsBack(document(paragraph({ marks: [{ type: 'em' }], text: 'a', type: 'text' }, { marks: [{ type: 'em' }], text: '', type: 'text' })))
readsBack(document(paragraph({ content: nested, text: 'x', type: 'text' })))
readsBack(document(paragraph({ content: nested, marks: [{ type: 'code' }], text: 'x', type: 'text' })))
readsBack(document({ content: [{ text: '', type: 'text' }], type: 'codeBlock' }))
readsBack(document({ content: [{ text: 'a', type: 'text' }, { type: 'text' }], type: 'codeBlock' }))
})
test('carries a mark run whose edge holds whitespace CommonMark flanking counts', () => {
@@ -688,8 +694,12 @@ test('refuses the content and slot an inline directive has no room for', () => {
assert.equal(refused({ text: 'x', type: 'status' }), neither('status', 'text'))
assert.equal(refused({ content: [{ text: 'x', type: 'text' }], type: 'hardBreak' }), neither('hardBreak', 'content'))
assert.equal(refused({ text: 'x', type: 'hardBreak' }), neither('hardBreak', 'text'))
assert.equal(refused({ attrs: { text: 'a\nb' }, type: 'status' }), 'unspellable-whitespace: the status content slot holds a newline no inline directive spans')
assert.equal(refused({ attrs: { text: 'a\u0000b' }, type: 'status' }), 'unspellable-character: a status content slot holds a null character CommonMark replaces')
})
test('carries an inline node whose content slot holds a line ending or a null character', () => {
assert.equal(readsBack(document(paragraph({ attrs: { text: 'a\nb' }, type: 'status' }))), '!adf:carry{json="{\\"attrs\\":{\\"text\\":\\"a\\\\nb\\"},\\"type\\":\\"status\\"}"}\n')
readsBack(document(paragraph({ attrs: { text: 'a\rb' }, type: 'emoji' })))
readsBack(document(paragraph({ attrs: { id: 'x', text: 'a\u0000b' }, type: 'mention' })))
})
test('spells the directive marks around the longest run they cover', () => {
+15 -22
View File
@@ -128,9 +128,9 @@ function spellReadableBlock(node: AdfNode, path: ConvertErrorPath, depth: number
if (plain !== undefined) return plain
if (node.type === 'blockquote') return tryBlockquote(node, path, depth, writing)
if (node.type === 'bulletList' || node.type === 'orderedList') return tryList(node, path, depth, writing)
if (node.type === 'codeBlock') return tryCodeBlock(node, path)
if (node.type === 'codeBlock') return readableText(tryCodeBlock(node))
if (node.type === 'heading') return tryHeading(node, path, writing.flavour)
if (node.type === 'mediaSingle') return readableText(tryImage(node, path))
if (node.type === 'mediaSingle') return readableText(tryImage(node))
if (node.type === 'paragraph') return tryParagraph(node, path, writing.flavour)
if (node.type === 'rule') return readableText(tryRule(node))
if (node.type === 'table') return readableText(tryPipeTable(node, path, writing.flavour))
@@ -251,43 +251,36 @@ function tryBlockquote(node: AdfNode, path: ConvertErrorPath, depth: number, wri
return success(commonMarkText(quoted(alert ? `\\${text}` : text), inner.value.headroom))
}
function tryCodeBlock(node: AdfNode, path: ConvertErrorPath): Result<EmittedBlock> | undefined {
function tryCodeBlock(node: AdfNode): string | undefined {
if (!holdsOnlyAttributes(node, ['language'])) return undefined
const slot = languageSlot(nodeAttrs(node)['language'])
if (slot.kind === 'attribute') return undefined
const texts = fencedTexts(node, path)
if (!texts.ok) return texts
const [only, ...others] = texts.value ?? []
const [only, ...others] = fencedTexts(node) ?? []
if (only === undefined || others.length > 0) return undefined
return success(commonMarkText(fencedCodeBlock(slot.kind === 'fence' ? slot.info : '', only)))
return fencedCodeBlock(slot.kind === 'fence' ? slot.info : '', only)
}
// spec/flavour.md, The CommonMark blocks: one fence per text node, the language on each; with no fence to carry it, the attribute does.
function emitCodeDirective(node: AdfNode, model: BlockNodeModel, path: ConvertErrorPath, depth: number): Result<EmittedBlock> {
const texts = fencedTexts(node, path)
if (!texts.ok) return texts
if (texts.value === undefined) return commonMarkLine(carriedBlock(node, path, depth))
const slot: LanguageSlot = texts.value.length === 0 ? { kind: 'attribute' } : languageSlot(nodeAttrs(node)['language'])
const texts = fencedTexts(node)
if (texts === undefined) return commonMarkLine(carriedBlock(node, path, depth))
const slot: LanguageSlot = texts.length === 0 ? { kind: 'attribute' } : languageSlot(nodeAttrs(node)['language'])
const opener = spellBlockDirectiveOpener(node, model, path, slot.kind === 'attribute' ? [] : ['language'])
if (opener === undefined) return commonMarkLine(carriedBlock(node, path, depth))
if (!opener.ok) return opener
const info = slot.kind === 'fence' ? slot.info : ''
return success(directivePair(node, opener.value, texts.value.map((text) => fencedCodeBlock(info, text)).join('\n')))
return success(directivePair(node, opener.value, texts.map((text) => fencedCodeBlock(info, text)).join('\n')))
}
// The text each fence holds, or `undefined` where a child is no plain text node, which the carry holds instead.
function fencedTexts(node: AdfNode, path: ConvertErrorPath): Result<string[] | undefined> {
if (node.content === undefined) return success([''])
if (node.content.some((child) => !isUnmarkedBareText(child))) return success(undefined)
// The text of each fence, or `undefined` where a child holds what no fence keeps, so the block carry takes the node.
function fencedTexts(node: AdfNode): string[] | undefined {
if (node.content === undefined) return ['']
const texts: string[] = []
for (const [index, child] of node.content.entries()) {
const childPath = [...path, 'content', index]
if (typeof child.text !== 'string' || child.text === '') return failure('unsupported-node-shape', 'a text node holds text: this one has none', childPath)
if (/\r/.test(child.text)) return failure('unspellable-character', 'a codeBlock holds no carriage return CommonMark keeps: this text holds one', childPath)
if (holdsNullCharacter(child.text)) return failure('unspellable-character', 'a codeBlock holds a null character CommonMark replaces', childPath)
for (const child of node.content) {
if (!isUnmarkedBareText(child) || typeof child.text !== 'string' || child.text === '' || /\r/.test(child.text) || holdsNullCharacter(child.text)) return undefined
texts.push(child.text)
}
return success(texts)
return texts
}
function tryHeading(node: AdfNode, path: ConvertErrorPath, flavour: Flavour): Result<EmittedBlock> | undefined {
+2 -3
View File
@@ -1,5 +1,4 @@
import type { AdfNode } from '../../adf/document.ts'
import type { ConvertErrorPath } from '../../result.ts'
import { holdsOnlyAttributes, nodeAttrs, nodeContent } from '../../adf/document.ts'
import { serializeCanonicalJson } from '../../canonical-json.ts'
import { tryImageLine } from './inline-line.ts'
@@ -7,10 +6,10 @@ import { tryImageLine } from './inline-line.ts'
const centeredMediaSingle = '{"layout":"center"}'
const imageAttributes = ['alt', 'type', 'url']
export function tryImage(node: AdfNode, path: ConvertErrorPath): string | undefined {
export function tryImage(node: AdfNode): string | undefined {
const image = imageShape(node)
if (image === undefined) return undefined
return tryImageLine(image.alt, image.url, [...path, 'content', 0])
return tryImageLine(image.alt, image.url)
}
function imageShape(node: AdfNode): { alt: string | undefined; url: string } | undefined {
+33 -51
View File
@@ -4,17 +4,17 @@ import type { InlineNodeModel } from '../../adf/inline-nodes.ts'
import type { LineContainer } from '../line-container.ts'
import { assembleInlineLine, isSyntax, type InlineEscaping, type InlineSegment, type MarkRun, type NodeRange } from './line-escaping.ts'
import { carriedInline } from '../opaque-carry.ts'
import { claimsLine, holdsNullCharacter, trimTrailingSpace } from '../commonmark/grammar.ts'
import { holdsNullCharacter, trimTrailingSpace } from '../commonmark/grammar.ts'
import { commonMarkLink, linkHref, markSpelling, spellMarkAttributes } from '../mark-spellings.ts'
import { identicalMark, isBareText, nodeAttrs, nodeContent, nodeMarks } from '../../adf/document.ts'
import { escapeUnbalanced, spellDestination } from '../commonmark/link-syntax.ts'
import { failure, faulted, success, type ConvertErrorPath, type Result } from '../../result.ts'
import { identicalMark, isBareText, nodeAttrs, nodeContent, nodeMarks } from '../../adf/document.ts'
import { failure, success, type ConvertErrorPath, type Result } from '../../result.ts'
import { highlightDelimiter } from '../plain/conventions.ts'
import { inlineNodeModel } from '../../adf/inline-nodes.ts'
import { joinsWhenRead, textBreakSpelling } from '../adjacent-text.ts'
import { largestNesting } from '../../nesting.ts'
import { longestBacktickRun } from '../commonmark/backtick-runs.ts'
import { slotLineEndingFault, spellInlineDirectiveOpener, spellInlineLeafDirective } from '../directive-syntax.ts'
import { slotFault, spellInlineDirectiveOpener, spellInlineLeafDirective } from '../directive-syntax.ts'
import { spellInlineNodeAttributes } from './inline-directive-spelling.ts'
import { spellTextDirective } from '../text-directive.ts'
@@ -38,7 +38,7 @@ type LineAttempt = { fallback: NodeRange | 'opening-link'; line?: undefined } |
type LineFallbacks = { carried: Set<number>; flavour: Flavour; openingLinkAsDirective: boolean }
export type PlainLineFallback = { kind: 'claimed-line'; line: number; text: string } | { kind: 'opening-link' } | { kind: 'unspellable-run'; runs: [MarkRun, ...MarkRun[]] }
export type PlainLineFallback = { kind: 'opening-link' } | { kind: 'unspellable-run'; runs: [MarkRun, ...MarkRun[]] }
export function emitInlineLine(nodes: readonly AdfNode[], container: LineContainer, path: ConvertErrorPath, flavour: Flavour): Result<string> {
const emitted = emitLine(nodes, container, path, flavour)
@@ -67,13 +67,12 @@ export function tryPipeCell(nodes: readonly AdfNode[], path: ConvertErrorPath, f
return emitted.value.line
}
export function tryImageLine(alt: string | undefined, href: string, path: ConvertErrorPath): string | undefined {
export function tryImageLine(alt: string | undefined, href: string): string | undefined {
if (alt !== undefined && (/^[ \t]|[ \t]$|[\n\r]/.test(alt) || holdsNullCharacter(alt))) return undefined
const destination = spellDestination(href)
if (destination === undefined) return undefined
const description: InlineSegment[] = alt === undefined ? [] : [{ escaping: 'bracketed', text: alt }]
const attempt = attemptLine([syntax('!['), ...description, syntax(`](${destination})`)], 'paragraph', path, 'lossless')
return attempt.ok ? attempt.value.line : undefined
return attemptLine([syntax('!['), ...description, syntax(`](${destination})`)], 'paragraph', 'lossless').line
}
function emitLine(nodes: readonly AdfNode[], container: LineContainer, path: ConvertErrorPath, flavour: Flavour): Result<EmittedLine> {
@@ -87,12 +86,11 @@ function emitLine(nodes: readonly AdfNode[], container: LineContainer, path: Con
if (!taken.ok) return taken
continue
}
const attempt = attemptLine(emission.value.segments, container, path, flavour)
if (!attempt.ok) return attempt
if (attempt.value.line !== undefined) {
return success({ line: attempt.value.line, openingLinkAsDirective: fallbacks.openingLinkAsDirective, segments: emission.value.segments })
const attempt = attemptLine(emission.value.segments, container, flavour)
if (attempt.line !== undefined) {
return success({ line: attempt.line, openingLinkAsDirective: fallbacks.openingLinkAsDirective, segments: emission.value.segments })
}
const taken = takeFallback(fallbacks, attempt.value.fallback, path)
const taken = takeFallback(fallbacks, attempt.fallback, path)
if (!taken.ok) return taken
}
}
@@ -117,12 +115,11 @@ function lineSegments(nodes: readonly AdfNode[], container: LineContainer, path:
return success({ segments: spellEdgeWhitespace(emission.value.segments) })
}
function attemptLine(segments: readonly InlineSegment[], container: LineContainer, path: ConvertErrorPath, flavour: Flavour): Result<LineAttempt> {
function attemptLine(segments: readonly InlineSegment[], container: LineContainer, flavour: Flavour): LineAttempt {
const verdict = lineVerdict(segments, container, flavour)
if (verdict.kind === 'opening-link') return success({ fallback: 'opening-link' })
if (verdict.kind === 'unspellable-run') return success({ fallback: verdict.runs[0] })
if (verdict.kind === 'claimed-line') return failure('unspellable-line-start', `block parsing would claim the emitted line ${JSON.stringify(verdict.text)}`, path)
return success({ line: verdict.text })
if (verdict.kind === 'opening-link') return { fallback: 'opening-link' }
if (verdict.kind === 'unspellable-run') return { fallback: verdict.runs[0] }
return { line: verdict.text }
}
// The fallbacks in the order a line takes them, or the line where it takes none.
@@ -130,10 +127,7 @@ function lineVerdict(segments: readonly InlineSegment[], container: LineContaine
const assembled = assembleInlineLine(segments, container, flavour)
if (assembled.openingLinkAsDirective) return { kind: 'opening-link' }
const [run, ...others] = assembled.unspellableRuns
if (run !== undefined) return { kind: 'unspellable-run', runs: [run, ...others] }
const lines = assembled.line.split('\n')
const claimed = container === 'paragraph' ? lines.findIndex((single, index) => claimsLine(single, index === 0 ? 'first' : 'later')) : -1
return claimed === -1 ? { kind: 'line', text: assembled.line } : { kind: 'claimed-line', line: claimed, text: lines[claimed] ?? '' }
return run === undefined ? { kind: 'line', text: assembled.line } : { kind: 'unspellable-run', runs: [run, ...others] }
}
// spec/flavour.md, Inline nodes.
@@ -223,9 +217,14 @@ function nodePath(context: InlineContext, index: number): ConvertErrorPath {
return [...context.path, 'content', index]
}
// Decides the text-node and slot-fault carries up front, so a line holding many of them is emitted once.
function carries(node: AdfNode, carried: ReadonlySet<number>, index: number): boolean {
if (carried.has(index)) return true
return node.type !== 'text' && inlineNodeModel(node.type) === undefined
if (node.type === 'text') return !isBareText(node) || typeof node.text !== 'string' || node.text === ''
const model = inlineNodeModel(node.type)
if (model === undefined) return true
const slot = model.textAttribute === undefined ? undefined : nodeAttrs(node)[model.textAttribute]
return typeof slot === 'string' && slotFault(node.type, slot) !== undefined && nodeContent(node).length === 0 && node.text === undefined
}
function emitLeaf(node: AdfNode, context: InlineContext, index: number): Result<Emission> {
@@ -238,7 +237,7 @@ function emitLeaf(node: AdfNode, context: InlineContext, index: number): Result<
const types = nodeMarks(node).map((mark) => mark.type)
if (new Set(types).size !== types.length) return failure('unsupported-node-shape', `a ${node.type} node carries one mark type twice`, path)
const model = inlineNodeModel(node.type)
if (model === undefined) return emitText(node, context, index, path)
if (model === undefined) return success(emitText(node, context, index))
if (node.type === 'hardBreak') return emitHardBreak(node, model, context, index, path)
return emitInlineDirective(node, model, index, path)
}
@@ -259,39 +258,27 @@ function emitInlineDirective(node: AdfNode, model: InlineNodeModel, index: numbe
if (attributes === undefined) return success({ carry: { first: index, last: index } })
const slot = model.textAttribute === undefined ? undefined : nodeAttrs(node)[model.textAttribute]
if (slot === undefined) return success({ segments: [syntax(spellInlineLeafDirective(node.type, attributes))] })
if (typeof slot !== 'string') return success({ carry: { first: index, last: index } })
const spans = slotLineEndingFault(node.type, slot)
if (spans !== undefined) return faulted(spans, path)
if (holdsNullCharacter(slot)) return failure('unspellable-character', `a ${node.type} content slot holds a null character CommonMark replaces`, path)
if (typeof slot !== 'string' || slotFault(node.type, slot) !== undefined) return success({ carry: { first: index, last: index } })
const content: InlineSegment[] = slot === '' ? [] : [{ escaping: 'bracketed', text: slot }]
return success({ segments: [syntax(spellInlineDirectiveOpener(node.type)), ...content, syntax(`]${attributes}`)] })
}
function textHoldingContent(node: AdfNode, path: ConvertErrorPath): Result<never> | undefined {
return node.type === 'text' && nodeContent(node).length > 0 ? failure('unsupported-node-shape', 'a text node holds no content: this one holds some', path) : undefined
}
function emitText(node: AdfNode, context: InlineContext, index: number, path: ConvertErrorPath): Result<Emission> {
const holding = textHoldingContent(node, path)
if (holding !== undefined) return holding
if (!isBareText(node)) return success({ carry: { first: index, last: index } })
if (typeof node.text !== 'string' || node.text === '') return failure('unsupported-node-shape', 'a text node holds text: this one has none', path)
if (/\r/.test(node.text)) return failure('unspellable-character', 'a text node holds a carriage return CommonMark rewrites', path)
if (holdsNullCharacter(node.text)) return failure('unspellable-character', 'a text node holds a null character CommonMark replaces', path)
// spec/flavour.md, Text CommonMark cannot hold plainly.
function emitText(node: AdfNode, context: InlineContext, index: number): Emission {
if (!isBareText(node) || typeof node.text !== 'string' || node.text === '') return { carry: { first: index, last: index } }
const escaping: InlineEscaping = context.bracketed ? 'bracketed' : 'backslash'
const parts = node.text.split(/(\n+)/).filter((part) => part !== '')
return success({ segments: parts.map((part) => (part.startsWith('\n') ? textDirectiveSegment(part) : { escaping, text: part })) })
const parts = node.text.split(/(\n+|\0+|\r)/).filter((part) => part !== '')
return { segments: parts.map((part) => (part === '\r' ? syntax('&#13;') : /^[\n\0]/.test(part) ? textDirectiveSegment(part) : { escaping, text: part })) }
}
function emitMarkedRun(nodes: readonly AdfNode[], mark: AdfMark, depth: number, index: number, context: InlineContext): Result<Emission> {
const path = nodePath(context, index)
const range: NodeRange = { first: index, last: index + nodes.length - 1 }
if (mark.type === 'backgroundColor' && context.flavour === 'plain') return emitHighlight(nodes, depth, range, context)
const spelling = markSpelling(mark.type)
if (spelling === undefined) return success({ carry: range })
const attributes = spellMarkAttributes(mark, spelling)
if (attributes === undefined) return success({ carry: range })
if (spelling.kind === 'code') return emitCodeSpan(nodes, depth, range, path)
if (spelling.kind === 'code') return success(emitCodeSpan(nodes, depth, range))
if (spelling.kind === 'emphasis') return emitEmphasis(nodes, spelling.spelling, depth, range, context)
const link = spelling.kind === 'link' ? tryLink(nodes, mark, depth, range, context) : undefined
if (link !== undefined) return link
@@ -325,20 +312,15 @@ function emitHighlight(nodes: readonly AdfNode[], depth: number, range: NodeRang
}
// Each node its own span: CommonMark reads two adjacent text nodes in one span back as one.
function emitCodeSpan(nodes: readonly AdfNode[], depth: number, range: NodeRange, path: ConvertErrorPath): Result<Emission> {
function emitCodeSpan(nodes: readonly AdfNode[], depth: number, range: NodeRange): Emission {
const spans: string[] = []
for (const node of nodes) {
const holding = textHoldingContent(node, path)
if (holding !== undefined) return holding
if (!isBareText(node) || nodeMarks(node).length !== depth + 1) return success({ carry: range })
const { text } = node
if (typeof text !== 'string' || text === '') return failure('unsupported-node-shape', 'a text node holds text: this one has none', path)
if (/[\n\r]/.test(text)) return success({ carry: range })
if (holdsNullCharacter(text)) return failure('unspellable-character', 'a code span holds a null character CommonMark replaces', path)
if (!isBareText(node) || nodeMarks(node).length !== depth + 1 || typeof text !== 'string' || text === '' || /[\n\r]/.test(text) || holdsNullCharacter(text)) return { carry: range }
const fence = '`'.repeat(longestBacktickRun(text) + 1)
spans.push(`${fence}${needsPadding(text) ? ` ${text} ` : text}${fence}`)
}
return success({ segments: [syntax(spans.join(textBreakSpelling))] })
return { segments: [syntax(spans.join(textBreakSpelling))] }
}
function needsPadding(text: string): boolean {
+3 -3
View File
@@ -13,7 +13,7 @@ import { inlineMarkSpellingFault } from './directive-marks.ts'
import { inlineNodeModel } from '../../adf/inline-nodes.ts'
import { readEmptyKeys, spellsEmpty } from '../empty-keys.ts'
import { readVocabulary } from './directive-attributes.ts'
import { slotLineEndingFault } from '../directive-syntax.ts'
import { slotFault } from '../directive-syntax.ts'
import { textBreakName } from '../adjacent-text.ts'
import { textDirectiveName } from '../text-directive.ts'
@@ -68,8 +68,8 @@ export function readInlineDirectiveNode(
if (text === undefined) {
return failure('unsupported-node-shape', `the ${name} content slot holds one text node carrying neither marks, attributes nor content: this one holds something else`, path)
}
const spans = slotLineEndingFault(name, text)
if (spans !== undefined) return faulted(spans, path)
const fault = slotFault(name, text)
if (fault !== undefined) return faulted(fault, path)
attrs.value[slot] = text
}
return success(namedNode(name, attrs.value, undefined, empty.value.empty))
+9 -5
View File
@@ -304,10 +304,8 @@ test('names the directive form a node CommonMark spells refuses', () => {
assert.deepEqual(content(markdownToAdf('!adf:bulletList\n!adf:listItem\n---\n!adf:/listItem\n!adf:/bulletList\n')), [bulletList(item({ type: 'rule' }))])
})
// The spelling the emitter refuses gives the emitter's own error, never a second name for it.
test('gives back the refusal the CommonMark spelling itself raises', () => {
const lineStart = '!adf:blockquote\n` `` `\n!adf:/blockquote\n'
assert.equal(content(markdownToAdf(lineStart)), 'unspellable-line-start: block parsing would claim the emitted line "``` `` ```"')
test('refuses the directive form of a blockquote opening with a code span', () => {
assert.equal(content(markdownToAdf('!adf:blockquote\n` `` `\n!adf:/blockquote\n')), 'unsupported-node-shape: blockquote takes the CommonMark spelling, not the directive form')
})
test('names the directive name no node reads back to', () => {
@@ -1007,9 +1005,15 @@ test('names the content slot no lone plain text node reads back from', () => {
assert.equal(content(markdownToAdf('!adf:status[!adf:text{text="\\n"}]{color=yellow}\n')), spans)
assert.equal(content(markdownToAdf('!adf:status[a&#10;b]{color=yellow}\n')), spans)
assert.equal(content(markdownToAdf('!adf:status[a&#13;b]{color=yellow}\n')), spans)
assert.equal(content(markdownToAdf('!adf:status[!adf:text{text="\\u0000"}]{color=yellow}\n')), 'unsupported-node-shape: the status content slot holds a null character: write the node as !adf:carry')
assert.equal(content(markdownToAdf('Part !adf:mention{id=b1c2 text=A}.\n')), 'unsupported-node-shape: mention spells its text attribute in the content slot, never in {attrs}')
})
test('reads the characters CommonMark rewrites from their spellings', () => {
assert.deepEqual(content(markdownToAdf('a&#13;b!adf:text{text="\\u0000\\u0000"}\n')), [paragraph('a\rb\u0000\u0000')])
assert.equal(content(markdownToAdf('!adf:text{text="\\u0000a"}\n')), 'unsupported-node-shape: text spells one run of spaces and tabs, one run of newlines, or one run of null characters: this one spells none of them')
})
test('reads the whitespace the reserved text directive carries', () => {
assert.deepEqual(content(markdownToAdf('!adf:text{text=" "}a\n')), [paragraph(' a')])
assert.deepEqual(content(markdownToAdf('a!adf:text{text="\\n"}b\n')), [paragraph('a\nb')])
@@ -1018,7 +1022,7 @@ test('reads the whitespace the reserved text directive carries', () => {
})
test('names the text directive spelling no whitespace run reads back from', () => {
const named = 'unsupported-node-shape: text spells one run of spaces and tabs, or one run of newlines: this one spells neither'
const named = 'unsupported-node-shape: text spells one run of spaces and tabs, one run of newlines, or one run of null characters: this one spells none of them'
assert.equal(content(markdownToAdf('!adf:text{text=hi}\n')), named)
assert.equal(content(markdownToAdf('!adf:text{text=" \\n"}\n')), named)
assert.equal(content(markdownToAdf('!adf:text{text=""}\n')), named)
@@ -313,12 +313,12 @@ test('breaks a line at a newline and trims whitespace at every edge CommonMark s
assert.equal(plain(paragraph(text(' x ', code))), '` x `\n')
assert.equal(plain(node('heading', { level: 1 }, text(' h\ni '))), '# h i\n')
assert.equal(plain(paragraph(text('a\r\u0000b'))), 'ab\n')
assert.equal(plain(paragraph(text('x', link('/u', 't\r\u0000')))), '[x](/u "t")\n')
})
test('drops the code mark of a span opening a line with backticks that read as a fence', () => {
assert.equal(plain(paragraph(text('``` x', code))), '\\`\\`\\` x\n')
assert.equal(plain(paragraph(text('a\n'), text('``` x', code))), 'a\\\n\\`\\`\\` x\n')
assert.equal(plain(paragraph(text('a '), text('``` x', code))), 'a ```` ``` x ````\n')
test('keeps a code span opening a line, whose backticks open no fence', () => {
assert.equal(plain(paragraph(text('``` x', code))), '```` ``` x ````\n')
assert.equal(plain(paragraph(text('a\n'), text('``` x', code))), 'a\\\n```` ``` x ````\n')
})
test('drops an empty paragraph and merges adjacent lists of one type', () => {
+6 -14
View File
@@ -149,7 +149,7 @@ function plainMarks(marks: readonly AdfMark[], container: LineContainer, text: s
function plainLink(mark: AdfMark, container: LineContainer): AdfMark | undefined {
const attrs = nodeAttrs(mark)
const held = attrs['href']
const title = typeof attrs['title'] === 'string' ? attrs['title'].replace(/\r/g, '').replace(/\n/g, ' ') : undefined
const title = typeof attrs['title'] === 'string' ? attrs['title'].replace(/[\r\0]/g, '').replace(/\n/g, ' ') : undefined
if (typeof held !== 'string') return undefined
const href = writableHref(container === 'table-cell' ? held.replaceAll('|', '%7C') : held)
if (title === undefined || spellLinkTarget(href, title) === undefined || (container === 'table-cell' && title.includes('|'))) return { attrs: { href }, type: 'link' }
@@ -267,21 +267,13 @@ function spellableLine(leaves: AdfNode[], container: LineContainer, path: Conver
function withoutFallback(leaves: readonly AdfNode[], fallback: PlainLineFallback): AdfNode[] | undefined {
if (fallback.kind === 'unspellable-run') return withoutMarks(leaves, fallback.runs)
const first = fallback.kind === 'opening-link' ? 0 : lineStart(leaves, fallback.line)
const mark = nodeMarks(leaves[first] ?? {})[0]
if (mark === undefined || mark.type !== (fallback.kind === 'opening-link' ? 'link' : 'code')) return undefined
let last = first
const mark = nodeMarks(leaves[0] ?? {})[0]
if (mark === undefined || mark.type !== 'link') return undefined
let last = 0
while (sameMarkAt(nodeMarks(leaves[last + 1] ?? {}), [mark], 0)) last += 1
// A code span is what binds the `]` a link definition reads, and dropping it keeps the link target.
const spans = leaves.slice(first, last + 1).some((leaf) => nodeMarks(leaf).length > 1 && nodeMarks(leaf).at(-1)?.type === 'code')
if (mark.type === 'link' && spans) return leaves.map((leaf, index) => (index < first || index > last ? leaf : withMarks(leaf, nodeMarks(leaf).filter((held) => held.type !== 'code'))))
return withoutMarks(leaves, [{ depth: 0, first, last }])
}
function lineStart(leaves: readonly AdfNode[], line: number): number {
let index = 0
for (let breaks = 0; breaks < line && index < leaves.length; index += 1) if (leaves[index]?.type === 'hardBreak') breaks += 1
return index
const spans = leaves.slice(0, last + 1).some((leaf) => nodeMarks(leaf).length > 1 && nodeMarks(leaf).at(-1)?.type === 'code')
return spans ? leaves.map((leaf, index) => (index > last ? leaf : withMarks(leaf, nodeMarks(leaf).filter((held) => held.type !== 'code')))) : undefined
}
// The runs cover disjoint leaves, so one pass drops them all.
+2 -2
View File
@@ -2,7 +2,7 @@ import type { DirectiveSpan, Read } from './directive-syntax.ts'
import { readSoleStringAttribute, spellAttributes, spellInlineLeafDirective, spellStringAttribute, unsupportedNodeShape } from './directive-syntax.ts'
const name = 'text'
const whitespaceRun = /^(?:[ \t]+|\n+)$/
const spelledRun = /^(?:[ \t]+|\n+|\0+)$/
export const textDirectiveName = name
@@ -14,6 +14,6 @@ export function readTextDirective(span: DirectiveSpan): Read<string> | undefined
if (span.name !== name) return undefined
const spelled = readSoleStringAttribute(span, name)
if (spelled.fault !== undefined) return spelled
if (!whitespaceRun.test(spelled.value)) return { fault: unsupportedNodeShape(`${name} spells one run of spaces and tabs, or one run of newlines: this one spells neither`) }
if (!spelledRun.test(spelled.value)) return { fault: unsupportedNodeShape(`${name} spells one run of spaces and tabs, one run of newlines, or one run of null characters: this one spells none of them`) }
return spelled
}
-2
View File
@@ -5,8 +5,6 @@ export type ConvertErrorCode =
| 'unknown-directive-name'
| 'unmappable-html'
| 'unmappable-image'
| 'unspellable-character'
| 'unspellable-line-start'
| 'unspellable-whitespace'
| 'unsupported-document-version'
| 'unsupported-nesting-depth'
+41 -25
View File
@@ -6,7 +6,7 @@
`Bar = 9`
`Next ID = 67`
`Next ID = 70`
| Goal | W |
|---|---|
@@ -25,13 +25,14 @@
| ID | Release | Exempt | Item | R | S | A | G | Goals | Score |
|---|---|---|---|---|---|---|---|---|---|
| 7 | 0.2.0 | | **Ship HTML: `adfToHtml`, `htmlToAdf`, and `markdownToHtml` / `htmlToMarkdown` composed through ADF.** | 6 | 9 | 9 | 9 | 2, 3 | 25.8 |
| 55 | 0.2.0 | defect | **Spell every document the emitter refuses today for a carriage return, a NUL, a code-span line start, a newline inside an emoji, mention or status, or a text node whose text is empty or missing, or which holds content.** | 5 | 5 | 7 | 9 | 1 | 25.8 |
| 45 | 0.2.0 | | **Replace `isAdfDocument` with a reader returning `Result<AdfDocument>`.** | 2 | 3 | 6 | 8 | 1 | 25.2 |
| 67 | 0.2.0 | defect | **Push an expand title's leaves one at a time, so a title carrying many text nodes returns a result.** | 1 | 1 | 4 | 9 | 1 | 24.8 |
| 6 | 0.2.0 | decision | **Specify the HTML dialect.** | 2 | 6 | 7 | 8 | 2, 3 | 24.7 |
| 64 | 0.2.0 | defect | **Read back unchanged on V8 every JSON key the emitter writes, with a fixture whose key holds `\`, `"` or a control character.** | 4 | 4 | 6 | 8 | 1, 7 | 23.0 |
| 66 | 0.2.0 | defect | **Refuse an attribute value that is not a plain object, array or JSON primitive.** | 3 | 2 | 5 | 8 | 1 | 22.5 |
| 43 | 0.2.0 | decision | **Give each markdown input its own reader, strict to its own standard.** | 6 | 7 | 8 | 9 | 3, 4 | 22.3 |
| 65 | 0.2.0 | defect | **Read an image not alone in its paragraph as its alt text linked to its URL, and a titled image alone in its paragraph as the image captioned with its title.** | 5 | 5 | 7 | 7 | 3, 4, 6 | 18.7 |
| 68 | 0.2.0 | | **Carry a non-text inline node holding `content` or `text`, a block holding `text`, and a leaf block holding `content`.** | 3 | 3 | 4 | 7 | 1 | 18.2 |
| 49 | 0.2.0 | | **Read a list whose bullet or ordered delimiter changes as two lists, in both readers, and retire `!adf:listBreak`.** | 4 | 5 | 5 | 8 | 3, 4 | 17.2 |
| 61 | 0.2.0 | decision | **Have the emitter ask the inline reader how a line reads back, in place of `line-escaping.ts` predicting it.** | 6 | 8 | 3 | 8 | 1 | 14.0 |
| 52 | 0.2.0 | | **Spell `colwidth` as a comma list, `colwidth="340,420"`.** | 3 | 3 | 5 | 6 | 5 | 13.0 |
@@ -50,6 +51,7 @@
| 33 | 0.3.0 | | **Emit a line in time linear in its mark runs, in `adfToMarkdown` and `adfToPlainMarkdown`.** | 4 | 5 | 6 | 9 | 8 | 10.7 |
| 46 | 0.3.0 | | **Publish the bundle size in the README, failing the release pipeline when it drifts.** | 2 | 4 | 5 | 5 | 7, 9 | 10.3 |
| 9 | 0.3.0 | | **Ship an online sandbox: a web page with two textboxes converting between ADF and markdown on the library's browser build.** | 2 | 6 | 6 | 8 | 9 | 10.3 |
| 69 | 0.3.0 | question | **Decide whether `adfToPlainMarkdown` keeps a text node's `content`, and keep it or name the drop in the README.** | 2 | 2 | 3 | 5 | 6 | 7.9 |
| 56 | 0.3.0 | principle | **Give each piece of `blocks.ts`'s block-walk state and `inline-content.ts`'s `Scan` one owner that returns what it changes.** | 4 | 5 | 2 | 4 | 1 | 6.8 |
| 57 | 0.3.0 | principle | **Make each `ci.sh` leg build what it reads, so one leg run alone tests the current tree.** | 2 | 3 | 1 | 3 | 7 | 1.2 |
| 58 | 0.3.0 | principle | **Port `ci.sh`, `publish.sh` and `docker-runner.sh` to standalone Python scripts.** | 4 | 6 | 1 | 2 | 7 | -2.2 |
@@ -60,26 +62,7 @@
### 7. Ship HTML: `adfToHtml`, `htmlToAdf`, and `markdownToHtml` / `htmlToMarkdown` composed through ADF.
Lands after items 6, 59, 60, 61 and 62. The CommonMark spec suite also runs against
`markdownToHtml`. The README documents HTML as it documents markdown, and its tagline and
`package.json`'s `description` regain HTML.
### 55. Spell every document the emitter refuses today for a carriage return, a NUL, a code-span line start, a newline inside an emoji, mention or status, or a text node whose text is empty or missing, or which holds content.
Today `inline-line.ts` refuses a carriage return or NUL in text, and a NUL in an emoji, mention or
status (`unspellable-character`); and a paragraph opening with a code-span run
(`unspellable-line-start`); `fencedTexts` refuses the same characters in a code block;
`inline-line.ts` refuses a newline in an emoji, mention or status (`unspellable-whitespace`);
`inline-line.ts` and `fencedTexts` refuse a text node whose `text` is empty or missing, and
`inline-line.ts` one holding `content`. In text, a carriage return is CommonMark's `&#13;` (Goal 4),
and a NUL is `!adf:text{text="\u0000"}` holding just the NUL, since CommonMark reads `&#0;` as
U+FFFD (a writer panel, 3 of 3, 2026-10-04). The carries spell every other case: the inline carry in
a paragraph, the block carry in a code block.
The maintainer approved on 2026-10-04: §Markdown in is a canonical fixpoint drops its code-span
exception, §Which code a cause takes drops `unspellable-whitespace` as an emitter cause;
`unspellable-character` and `unspellable-line-start` retire. `unspellable-whitespace` stays, since
the reader raises it for a content slot spanning a newline. Found by the README-goals audit,
2026-10-03.
`markdownToHtml`. The README documents HTML as it documents markdown.
### 45. Replace `isAdfDocument` with a reader returning `Result<AdfDocument>`.
@@ -87,6 +70,13 @@ Goal 1 has every call return a result; the boolean guard is the one export that
cannot say which branch refused, where `not-an-adf-document`'s message already does. Breaking:
`MIGRATION.md` shows the guard's replacement.
### 67. Push an expand title's leaves one at a time, so a title carrying many text nodes returns a result.
`quoteNode`'s title loop (`parse/markdown-to-adf.ts`) spreads `inlineLeaves`'s result into
`push`, against `docs/decisions.md` §Nothing spreads an unbounded array: an inline carry in a
folded callout's title holding an unknown node with ~125k text children throws a `RangeError` from
`plainMarkdownToAdf`. Found by the README-goals audit, 2026-10-04.
### 6. Specify the HTML dialect.
Element-by-element mapping, the `data-*` fidelity scheme, the opaque-carry form, and the documented
@@ -130,6 +120,14 @@ its paragraph, it reads as the image with a `link` mark to `/uri`, which ADF's `
alone in its paragraph, the image reads as its alt text linked to `/uri`, and its URL drops. A
writer panel chose this reading 3 of 3 (2026-10-04), by Goal 5, which outranks Goal 6.
### 68. Carry a non-text inline node holding `content` or `text`, a block holding `text`, and a leaf block holding `content`.
`refuseContentAndText` (`emit/inline-line.ts`) and `emitDirectiveBlock` (`emit/adf-to-markdown.ts`)
refuse these with `unsupported-node-shape`, though `isAdfDocument` accepts them and the carry
round-trips them; `docs/decisions.md` §The code list gives a cause the carry answers no code. Drop
them from the emitting half of the README's `unsupported-node-shape` row. Found by the README-goals
audit, 2026-10-04.
### 49. Read a list whose bullet or ordered delimiter changes as two lists, in both readers, and retire `!adf:listBreak`.
Lands after item 43. Today `- a` then `+ b`, or `1.` then `1)`, reads as one list; CommonMark reads
@@ -145,7 +143,9 @@ which counts one fewer.
The comprehension panel's worst place: `escapeClaims` and `escapeClosedRuns` re-implement the
reader's view — flanking, code-span closers, link-definition openings, highlight flanking — and
only the property tests catch drift. It caps the panel's Locality score.
only the property tests catch drift. It caps the panel's Locality score. The replacement runs in
time linear in the line: today `mergesWithSyntax`, `touchesSyntax` and `closesHeading` rescan a run
of one character from each of its characters.
### 52. Spell `colwidth` as a comma list, `colwidth="340,420"`.
@@ -249,7 +249,9 @@ measured one.
`adfToMarkdown` spends 23 s on one paragraph of 2000 × `un` plus `**-r**`: each run its flanking
cannot spell re-emits the whole line before riding the carry, quadratic in the runs, and the plain
reduction's `spellableLine` drops one mark per re-emit the same way. Make both linear.
reduction's `spellableLine` drops one mark per re-emit the same way. An inline node whose
attributes no spelling writes re-emits the line the same way before riding the carry. Make all
three linear.
### 46. Publish the bundle size in the README, failing the release pipeline when it drifts.
@@ -261,13 +263,27 @@ or report the unminified gzip). The figure lands in README §The package beside
dependencies" claim. Measured today, unminified: tarball 60.4 kB, unpacked 221.5 kB, JS gzipped 45.6
kB.
### 69. Decide whether `adfToPlainMarkdown` keeps a text node's `content`, and keep it or name the drop in the README.
`nodeLeaves` (`plain/inline-reduction.ts`) keeps only a text node's `text`, so
`{ text: 'a', content: [{ text: 'kept', type: 'text' }] }` writes `a`, though `toEditorNormal`
keeps that content (`plain/editor-normal.ts`) and an unknown node's children keep their text.
Atlassian's schema allows no `content` on a text node, so no Atlassian reader saw it; an
export/indexing tool fed a looser producer loses searchable text. Goal 6 reads two ways here: keep
the children's text as an unknown node's, or name the drop in the README's plain section. Found by
the product-owner review, 2026-10-04.
### 56. Give each piece of `blocks.ts`'s block-walk state and `inline-content.ts`'s `Scan` one owner that returns what it changes.
Technical principle "One owner per value": the `Walk` record passes through twelve functions that
mutate it and return `void`; `walk.leaf` alone is written in seven places. `ContainerStack` in the
same file shows the shape to follow. `inline-content.ts`'s `Scan` has the same shape: about fifteen
functions write `pending`, `pieces`, `deactivatedBefore` and `openingSpellableLink` and return
`void`, and `parseInlineContent` reads a flag `scanInline` leaves on it.
`void`, and `parseInlineContent` reads a flag `scanInline` leaves on it. The same shape recurs in
`mintTaskIds` (`plain/task-ids.ts`), which writes `attrs` on the document `readDocument` built;
`takeFallback` (`emit/inline-line.ts`), which writes the record the next `lineSegments` pass reads;
`writeUnpaired`, `markPairings` and `markHighlights` (`inline-content.ts`), whose order changes the
output; and `nestIn` (`plain/adf-to-plain-markdown.ts`), which pushes into its caller's array.
### 57. Make each `ci.sh` leg build what it reads, so one leg run alone tests the current tree.