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

PackageUrl

On this page

A package URL (ECMA-427) in its canonical form: pkg:npm/%40angular/animation@12.3.1.

Software; not ordered; since Jadpo 0.1.0.

Make one

Build one from its text, PackageUrl("pkg:npm/%40angular/animation@12.3.1"), which checks it: text that isn't one breaks format.

text.parse(raw, as: PackageUrl) reads one from its text; text that isn't one at all fails malformed, such as PKG:npm/left-pad@1.3.0, pkg:NPM/left-pad@1.3.0 or pkg://npm/left-pad@1.3.0.

Text, JSON and storage

text.from writes its canonical text, the one form text.parse reads back. JSON sends its canonical text as a string.

Text JSON
pkg:npm/%40angular/animation@12.3.1 "pkg:npm/%40angular/animation@12.3.1"
pkg:pypi/django@1.11.1 "pkg:pypi/django@1.11.1"
pkg:maven/org.apache.xmlgraphics/batik-anim@1.9.1?classifier=sources&packaging=jar "pkg:maven/org.apache.xmlgraphics/batik-anim@1.9.1?classifier=sources&packaging=jar"
pkg:deb/debian/curl@7.50.3-1?arch=i386&distro=jessie "pkg:deb/debian/curl@7.50.3-1?arch=i386&distro=jessie"
pkg:golang/google.golang.org/genproto#googleapis/api/annotations "pkg:golang/google.golang.org/genproto#googleapis/api/annotations"
pkg:docker/cassandra@sha256:244fd47e07d1004f0aed9c "pkg:docker/cassandra@sha256:244fd47e07d1004f0aed9c"

It is stored in one column named for the field, of type text. pkg:deb/debian/curl@7.50.3-1?arch=i386&distro=jessie is stored as 'pkg:deb/debian/curl@7.50.3-1?arch=i386&distro=jessie'.

Shown to people

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

With locale: Locale.en_gb:

Value Shown
pkg:npm/%40angular/animation@12.3.1 pkg:npm/%40angular/animation@12.3.1
pkg:pypi/django@1.11.1 pkg:pypi/django@1.11.1
pkg:maven/org.apache.xmlgraphics/batik-anim@1.9.1?classifier=sources&packaging=jar pkg:maven/org.apache.xmlgraphics/batik-anim@1.9.1?classifier=sources&packaging=jar
pkg:deb/debian/curl@7.50.3-1?arch=i386&distro=jessie pkg:deb/debian/curl@7.50.3-1?arch=i386&distro=jessie
pkg:golang/google.golang.org/genproto#googleapis/api/annotations pkg:golang/google.golang.org/genproto#googleapis/api/annotations
pkg:docker/cassandra@sha256:244fd47e07d1004f0aed9c pkg:docker/cassandra@sha256:244fd47e07d1004f0aed9c

Operations

It has the contract's own operations: text.parse, text.from, 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-package-url.md.Built from Jadpo main at e00e61f.