Jadpo is experimental and not ready for production. These docs follow the compiler's main branch as of 5 Nov 2026. What's built · Install 0.3.0
jadpo
ReferenceCommerce and logistics

LanguageValues and typesStandard typesCommerce and logistics

Vin

On this page

A vehicle identification number: 17 characters with no I, O or Q.

Use it to identify one vehicle for life. Its plate is a VehicleRegistration, which can change.

Shape

One value, held as text in one set form, with no parts: WVWZZZ1JZXW000001.

Example

example
Vin("1HGCM82633A004352")

Vin(raw) checks the text, and text that isn't one breaks the format rule.

text.parse(raw, as: Vin) reads one from text that comes from outside. Text that isn't one at all fails malformed, such as 1M8GDM9AYKP042788, 1M8GDM9AXKP04278O or 1m8gdm9axkp042788.

Good to know

  • It is upper case. Letters that look like digits aren't allowed, so O is refused.
  • == tells you whether two are the same. < and list.sort_by don't take it.

In JSON

A string, in a request, a response or json.write:

json
"1HGCM82633A004352""1M8GDM9AXKP042788""WVWZZZ1JZXW000001"

Details

Text form, storage, how it is shown, and operations

Vin is in the group Commerce and logistics, and has been in Jadpo since 0.1.0.

Text form

text.from writes one standard text form, the same form text.parse reads back: 1HGCM82633A004352, 1M8GDM9AXKP042788 and WVWZZZ1JZXW000001.

How it is stored

It is stored in one column named for the field, of type text. 1M8GDM9AXKP042788 is stored as '1M8GDM9AXKP042788'.

How it is shown to people

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

With locale: Locale.en_gb:

Value Shown
1HGCM82633A004352 1HGCM82633A004352
1M8GDM9AXKP042788 1M8GDM9AXKP042788
WVWZZZ1JZXW000001 WVWZZZ1JZXW000001

Operations

It also takes text.parse, text.from, text.format, json.read, json.write and ==. How every standard type behaves says how they work.

Markdown for agents: /docs/types/type-vin.md.Built from Jadpo main at aee2e8f.