Module punycode

punycode Internationalized Domain Name Conversion Module

Punycode is a character encoding scheme mainly used for internationalized domain names defined by RFC 3492. Because the host name in the URL can only be ASCII characters, the host name including non-ASCII characters must be converted to ASCII using the punycode algorithm.

Instructions:

1
var punycode = require('punycode');

Static function

encode

Convert a Unicode string into an equivalent Punycode string containing only ASCII characters

1
static String punycode.encode(String domain);

Call parameters:

• domain: String, given Unicode string

Return result:

• String, Returns the encoded Punycode string containing only ASCII characters

---

decode

Convert a Punycode string into an equivalent Unicode string

1
static String punycode.decode(String domain);

Call parameters:

• domain: String, given Unicode string

Return result:

• String, Return the decoded Unicode string

---

toASCII

Convert a Unicode string representing a domain name to a string containing only ASCII characters. Only the non-ASCII character strings that represent the domain name part will be converted. In other words, if you call a string that has been converted to ASCII, there is no problem.

1
static String punycode.toASCII(String domain);

Call parameters:

• domain: String, given Unicode string

Return result:

• String, Return the encoded ASCII string

---

toUnicode

Convert a Punycode string representing a domain name to a Unicode string. Only the Punycode string representing the part of the domain name will be converted. In other words, if you call a string that has been converted to Unicode, there is no problem.

1
static String punycode.toUnicode(String domain);

Call parameters:

• domain: String, given ASCII string

Return result:

• String, Return the decoded Unicode string