Hexchat CW1 plugin

Implements the CW1 CTCP.

CW1 CTCP

Syntax:

CW1 <rot13 text>

The CW1 CTCP is the Type-1 CW. On clients that don't support CW1, it falls back to displaying rot13 text.

Because rot13 only affects the English alphabet, it is recommended to use CW1 only for text using the Latin alphabet - everything else gets displayed as-is on clients that don't support CW1.

CW1 may appear multiple times in a message.

Examples:

hello\x01CW1 pehry\x01world\x01CW1 !\x01

On a client that supports CW1:

hello [hidden text 1 (click to expand)] world [hidden text 2 (click to expand)]

expands to:

hello cruel world !

On a client that doesn't support CW1:

hello CW1 pehry world CW1 !

(Some clients may display delimiter boxes around CW1 pehry and CW1 !, making it easier to distinguish where the hidden text ends from where non-hidden text starts)

Rot13 is already used in many mental health channels to "hide" triggering content pending further action from the user, which makes it a reasonable choice for a content warning CTCP.