# Corner Cases: Parity Test Document
## D1: Plaintext mode preserves code fences
Some text before.
```javascript
// This is a code block
var x = 5;
```
More text after.
```
This is
another code block.
```
End of D1 section.
## D2: Plaintext word splitting treats markdown links as atomic
The school is
[St. John's Beaumont School](https://en.wikipedia.org/wiki/St_John%27s_Beaumont_School)
in the area.
## D3: Narrow width wrapping around sup tags
wb\+ mode (binary read/write), automatically deleted when closed or on process
termination.<sup>19</sup> While convenient, POSIX notes potential permission issues and
recommends mkstemp followed by fdopen for multithreaded apps to avoid leaking file
descriptors.<sup>59</sup>
## D4: Tight list spacing with nested sublists
- Level 1a - Level 2a - Level 3a - Level 1b - Level 2b
Simple sublists:
- A - B - C - D
Ordered sublists:
1. Ordered 1 1. Sub 1 2. Sub 2 2. Ordered 2
## D5: Loose list spacing with footnote embedded lists
<https://rebelem.com/test>
## D6: Nested blockquotes without extra blank lines
> Level 1 > > Level 2 > > > Level 3
Two levels:
> Outer > > Inner
Blockquote with blank separator preserved:
> Outer quote. > > > Inner quote.
## D7: Footnote body preserves structure
line breaking behavior in the output format.
## D8: Footnote body blockquote continuation
## D9: Empty and whitespace input
Just a single paragraph.
## D10: HTML entities preserved
& < > "
The value is > 5 and < 10.
## D12: Paragraph before code fence — tight transition
**Configuration Options**: ```typescript
{
minTime: number,
}
```
Add to root `package.json`: ```json
{
"scripts": {}
}
```
First block: ```bash
echo hello
```
Second block: ```python
print("hi")
```
## D12b: Mixed loose/tight list code fences
Real-world pattern from corpus (plan-2026-02-17-batch-research-qa-cycle-v3.md):
- [ ] Create output: ```bash
cd web
``` - [ ] Launch all:
```bash
cd web
pnpm batch
```
Note: If key not available, skip. - [ ] Monitor: ```bash
watch ls
``` - [ ] Check
failures: ```bash
echo check
```
## D13: Blockquote blank continuation line indentation
Real-world pattern from corpus (template-process-error-review.md):
> This is a template. Before executing this process: > > 1. **Copy this file** to a
dated version: > > ```
> template-process.md
> ``` > > 2. **Review the previous**
for context: > > - Check the section
Another pattern from corpus (impl-2025-11-06 specs):
> - Rules: > > 1. Look for duplicated code > > 2. Look for dead code
## D14: Escaped backtick in table inline code
## D15: Smart quote after inline code (context-sensitive)
The `config`'s value is important.
Call `foo()`'s result.
Use `@react-spring/web`'s API and `x`'s type but `foo()`'s result.
## D16: Empty code blocks — no spurious blank line
Emergency commits:
```bash
git commit --no-verify -m "WIP: emergency fix"
````
```
```
Only use `--no-verify` when absolutely necessary.
## P1: Reference links preserved
This is [an example][ref1] of a reference link.
And [another link][ref2] too.
[ref1]: https://example.com "Example Title" [ref2]: https://example.org
## P2: Footnotes stay in position
Some text before the footnote.[^early]
More text after the footnote.
## P3: Escaped characters preserved
Escaped double quote: \"hello\"
Escaped at-sign: \@user
All CommonMark escapable: \! \# \$ \% \& \' \( \) \* \+ \, \- \. \/ \: \; \< \= \> \? \@
\[ \\ \] \^ \_ \` \{ \| \} \~
## P4: Nested list no extra blank line
- Parent item - Child 1 - Child 2 - Another parent
## Smart quotes in various contexts
"Double quoted" and 'single quoted' text.
It's a contraction.
"Nested 'quotes' here" should work.
Don't rebuild grep: full-text search is ripgrep's job, not ours.
## Mixed formatting stress test
> This blockquote has: > > 1. A numbered list with **bold** text > >
```bash
> echo "code in blockquote list"
> ``` > > 2. Another item with
`inline code`'s possessive > > - Nested bullet > - Another bullet
- Top-level list with [a link](https://example.com) and & entity - Sublist with
`code` - Deep nesting - Another item
```typescript
const x: string = "hello";
```
Continuation paragraph after code block.
---
End of corner cases document.