---
title: allowsExtendedAttributes
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/nsattributedstringmarkdownparsingoptions/allowsextendedattributes
---

# allowsExtendedAttributes

A Boolean value that indicates whether parsing allows extensions to Markdown that specify extended attributes.

## Declaration

```occ
@property BOOL allowsExtendedAttributes;
```

## Discussion

Discussion If this value is NO, the Markdown parser supports only the CommonMark syntax. The default is NO.

## See Also

### Determining Markdown Parsing Options

- [appliesSourcePositionAttributes](foundation/nsattributedstringmarkdownparsingoptions/appliessourcepositionattributes.md)
- [failurePolicy](foundation/nsattributedstringmarkdownparsingoptions/failurepolicy.md)
- [NSAttributedStringMarkdownParsingFailurePolicy](foundation/nsattributedstringmarkdownparsingfailurepolicy.md)
- [interpretedSyntax](foundation/nsattributedstringmarkdownparsingoptions/interpretedsyntax.md)
- [NSAttributedStringMarkdownInterpretedSyntax](foundation/nsattributedstringmarkdowninterpretedsyntax.md)
- [languageCode](foundation/nsattributedstringmarkdownparsingoptions/languagecode.md)