punycoder

README

punyc😀der

TLDR

Punycoder converts international domain names to their punycode representations on the commandline.

Longer Version

IDNA (Internationalized Domain Name in Applications) is a set of standards and protocols used to support non-ASCII characters in domain names. Punycode is a method used in IDNA to encode non-ASCII characters into ASCII characters that can be used in domain names, making them backwards compatible with existing implementations.

This is done by first converting the non-ASCII characters into their Unicode code points, and then encoding those code points using a special base-36 encoding scheme. The resulting string of ASCII characters is prefixed with the characters "xn--" to indicate that it is a Punycode-encoded domain name.

For example, the Punycode representation of a legal domain name 1❤️.ws is xn--1-7iqv272g.ws.

What's new

v0.2.1 (25/05/23)

• refactored cli args.

v0.2.0 (22/05/23)

• support unicode encoding of punycode

v0.1.0 (05/05/23)

• upgrade to go 1.20

v0.0.11 (04/05/23)

• added goreleaser and made available on homebrew

Up and running

Homebrew

brew tap simonmittag/cli &&
  brew install punycoder &&
  punycoder 

Golang

git clone https://github.com/simonmittag/punycoder && cd punycoder && 
go install github.com/simonmittag/punycoder/cmd/punycoder && 
punycoder 

Usage

λ Usage: punycoder host | [-u] host | [-v] | [-h]
  -h    print usage
  -u    convert to unicode
  -v    print punycoder version

Examples

Use punycoder with bash pipes reading from stdin

echo 1❤️.ws | punycoder | nslookup
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	xn--1-7iqv272g.ws
Address: 64.70.19.203

echo xn--1-7iqv272g.ws | punycoder -u 
1❤️.ws

Contributions

The punycoder team welcomes all contributors. Everyone interacting with the project's codebase, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct

Documentation

Index

• Constants
• func EncodeAscii(p string) string
• func EncodeUnicode(p string) string

Constants

const Version string = "v0.2.1"

Functions

func EncodeAscii

func EncodeAscii(p string) string

func EncodeUnicode

func EncodeUnicode(p string) string