---
name: "urn-scheme"
section: "3tcl"
platform: "linux"
package: "tcllib"
version: "2.0+dfsg-4"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/urn-scheme"
---

# urn-scheme(3tcl)

URI utilities, URN scheme

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## NAME

uri\_urn - URI utilities, URN scheme

## SYNOPSIS

package require **Tcl 8.5 9**

package require **uri::urn ?1.0.4?**

**uri::urn::quote** *url*

**uri::urn::unquote** *url*

```

```

## DESCRIPTION

This package provides two commands to quote and unquote the disallowed characters for url using the *urn* scheme, registers the scheme with the package **uri**, and provides internal helpers which will be automatically used by the commands **uri::split** and **uri::join** of package **uri** to handle urls using the *urn* scheme.

## COMMANDS

- **uri::urn::quote** *url*

  This command quotes the characters disallowed by the *urn* scheme (per RFC 2141 sec2.2) in the *url* and returns the modified url as its result.

- **uri::urn::unquote** *url*

  This commands performs the reverse of **::uri::urn::quote**. It takes an *urn* url, removes the quoting from all disallowed characters, and returns the modified urls as its result.

## BUGS, IDEAS, FEEDBACK

This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category *uri* of the *Tcllib Trackers* \[http://core.tcl.tk/tcllib/reportlist\]. Please also report any ideas for enhancements you may have for either package and/or documentation.

When proposing code changes, please provide *unified diffs*, i.e the output of **diff -u**.

Note further that *attachments* are strongly preferred over inlined patches. Attachments can be made by going to the **Edit** form of the ticket immediately after its creation, and then using the left-most button in the secondary navigation bar.

## KEYWORDS

rfc 2141, uri, url, urn

## CATEGORY

Networking