Jadpo is experimental and not ready for production. These docs follow the compiler's main branch as of 1 Nov 2026. What's built · Install 0.2.0
jadpo
Reference: Standard library

Standard types

RichTextBlock

On this page

One block of a RichText: a heading's level is 1 to 6, a list item's 1 to 9, how deep it sits.

Text formats; not ordered; since Jadpo 0.1.0.

Make one

Pick one of its variants and give its fields, RichTextBlock.paragraph { spans: ... }.

Variants

Variant Fields
paragraph spans: List<RichTextSpan>
heading level: Int, spans: List<RichTextSpan>
quote spans: List<RichTextSpan>
bullet_item level: Int, spans: List<RichTextSpan>
numbered_item level: Int, spans: List<RichTextSpan>

Text, JSON and storage

It has no single text form, so text.from and text.parse don't take it. JSON sends an object of its variant's name, as tag, and the variant's fields.

JSON
{"tag":"paragraph","spans":[{"text":"Fresh ","marks":[]},{"text":"soup","marks":["emphasis"]}]}
{"tag":"heading","level":1,"spans":[{"text":"Soups","marks":[]}]}
{"tag":"quote","spans":[{"text":"Fresh every day","marks":[]}]}
{"tag":"numbered_item","level":2,"spans":[{"text":"Stir","marks":[]}]}

It is stored in one column named for the field, of type jsonb. {"tag":"quote","spans":[{"text":"Fresh every day","marks":[]}]} is stored as '{"tag":"quote","spans":[{"text":"Fresh every day","marks":[]}]}'::jsonb.

Shown to people

text.format(value, locale:) shows it to people in their locale.

With locale: Locale.en_gb:

Value Shown
{"tag":"paragraph","spans":[{"text":"Fresh ","marks":[]},{"text":"soup","marks":["emphasis"]}]} Fresh soup
{"tag":"heading","level":1,"spans":[{"text":"Soups","marks":[]}]} Soups
{"tag":"quote","spans":[{"text":"Fresh every day","marks":[]}]} Fresh every day
{"tag":"numbered_item","level":2,"spans":[{"text":"Stir","marks":[]}]} Stir

Operations

It has the contract's own operations: text.format, json.read, json.write and ==. It isn't ordered, so < and sorting don't take it. Every standard type meets one contract says how they work.

Markdown for agents: /docs/types/type-rich-text-block.md.Built from Jadpo main at e00e61f.