attribute-line
40 cases. Source: tests/attribute-line.json.
#1 canonical: lead paragraph
Source
{.lead}
Opening paragraph, larger.
Rendered
Opening paragraph, larger.
Downgrade
Opening paragraph, larger.
#2 heading with id and class
Source
{#intro .x}
## Heading
Rendered
Heading
Downgrade
## Heading
#3 setext heading
Source
{.x}
Title
===
Rendered
Title
Downgrade
# Title
#4 list
Source
{.tight}
- a
- b
Rendered
- a
- b
Downgrade
- a
- b
#5 table
Source
{#t}
| a | b |
|---|---|
| 1 | 2 |
Rendered
| a | b |
|---|---|
| 1 | 2 |
Downgrade
| a | b |
| - | - |
| 1 | 2 |
#6 fenced code: attributes land on the code element
Source
{.wide}
```js
x
```
Rendered
x
Downgrade
```js
x
```
#7 blockquote
Source
{.muted}
> q
Rendered
q
Downgrade
> q
#8 thematic break
Source
{.x}
***
Rendered
Downgrade
---
#9 a dashed rule after an attribute line degrades to a setext heading and warns
Source
{.x}
---
Rendered
Downgrade
---
Diagnostics: DEGRADATION_SETEXT_RULE
#10 callout keeps the attributes on the callout node
Source
{#n1 .muted}
> [!NOTE] T
> b
Rendered
T
b
Downgrade
> **Note:** T
>
> b
#11 key=value becomes a data attribute
Source
{k=v}
Para
Rendered
Para
Downgrade
Para
#12 consecutive lines combine; last id wins
Source
{#a .one}
{.two k=v}
{#b}
Para
Rendered
Para
Downgrade
Para
#13 empty specifier attaches empty attributes
Source
{}
Para
Rendered
Para
Downgrade
Para
#14 quoted value may contain a brace
Source
{title="a}b"}
Para
Rendered
Para
Downgrade
Para
#15 inside a directive
Source
:::card
{.lead}
Para
:::
Rendered
Para
Downgrade
Para
#16 up to three spaces of indentation
Source
{.x}
Para
Rendered
Para
Downgrade
Para
#17 four spaces is indented code
Source
{.x}
Para
Rendered
{.x}
Para
Downgrade
```
{.x}
```
Para
#18 inside a paragraph it is text
Source
Para
{.x}
more
Rendered
Para {.x} more
Downgrade
Para
{.x}
more
#19 trailing content makes it a paragraph
Source
{.x} text
Rendered
{.x} text
Downgrade
{.x} text
#20 lazy continuation inside a list item is text
Source
- item
{.lead}
para
Rendered
- item {.lead} para
Downgrade
- item
{.lead}
para
#21 small on a paragraph is in place
Source
{.small}
fine print
Rendered
fine print
Downgrade
fine print
#22 misapplied reserved classes warn but are kept
Source
{.lead .badge}
- a
Rendered
- a
Downgrade
- a
Diagnostics: CLASS_MISAPPLIED CLASS_MISAPPLIED
#23 tone classes apply anywhere
Source
{.warn}
- a
Rendered
- a
Downgrade
- a
#24 inside tabs, a heading's attributes move to the tab
Source
:::tabs
{#mac .primary}
### macOS
x
### Windows
y
:::
Rendered
x
y
Downgrade
### macOS
x
### Windows
y
#25 inside a card the block keeps its attributes
Source
:::card
{.small}
fine print
:::
Rendered
fine print
Downgrade
fine print
#26 list item: leading attribute lines attribute the item
Source
- {.hot}
a
- b
Rendered
- a
- b
Downgrade
- a
- b
#27 list item: consecutive leading lines combine on the item
Source
- {.one}
{.two k=v}
c
Rendered
- c
Downgrade
- c
#28 list item: a blank line after the leading lines does not orphan them
Source
- {.hot}
a
Rendered
-
a
Downgrade
- a
#29 list item: an item holding only an attribute line is empty
Source
- {.only}
- b
Rendered
- b
Downgrade
-
- b
#30 inside grid, item attributes land on the grid item
Source
:::grid
- {.hot}
a
- b
:::
Rendered
a
b
Downgrade
- a
- b
#31 inside steps, item attributes land on the step
Source
:::steps
1. {#first}
a
2. b
:::
Rendered
- a
- b
Downgrade
1. a
2. b
#32 inside grid, attributes on the list are an error and are dropped
invalid
Source
:::grid
{.x}
- a
:::
Rendered
a
Downgrade
- a
Diagnostics: ATTR_LINE_ON_CONTENT
#33 inside steps, attributes on the list are an error
invalid
Source
:::steps
{#s}
1. a
:::
Rendered
- a
Downgrade
1. a
Diagnostics: ATTR_LINE_ON_CONTENT
#34 inside metrics, attributes on the table are an error
invalid
Source
:::metrics
{.x}
| a | b |
|---|---|
:::
Rendered
Downgrade
| a | b |
| - | - |
Diagnostics: ATTR_LINE_ON_CONTENT
#35 inside figure, attributes on the image paragraph are an error
invalid
Source
:::figure
{.x}
:::
Rendered
Downgrade
Diagnostics: ATTR_LINE_ON_CONTENT
#36 orphan at end of document
invalid
Source
Para
{.x}
Rendered
Para
Downgrade
Para
Diagnostics: ATTR_LINE_ORPHAN
#37 orphan before a blank line
invalid
Source
{.x}
Para
Rendered
Para
Downgrade
Para
Diagnostics: ATTR_LINE_ORPHAN
#38 cannot apply to a directive
invalid
Source
{.x}
:::card
y
:::
Rendered
y
Downgrade
y
Diagnostics: ATTR_LINE_ON_DIRECTIVE
#39 attribute errors carry through
invalid
Source
{#}
Para
Rendered
Para
Downgrade
Para
Diagnostics: ATTR_BAD_IDENTIFIER
#40 a bare JSON line is a malformed orphan attribute line
invalid
Source
{ "a": 1 }
Rendered
Downgrade
(empty)Diagnostics: ATTR_LINE_ORPHAN ATTR_UNEXPECTED_CHAR ATTR_BAD_IDENTIFIER