Re: X11 Compound Text vs ISO 2022

[David De La Harpe Golden]

> A number of characters are output in '^[$-1'; such as:
> (encode-coding-string "ℜ" 'compound-text) ; U+211C BLACK-LETTER CAPITAL R
> "^[$-1\365\334^[-A"
> (encode-coding-string "ʻ" 'compound-text) ; U+02BB MODIFIER LETTER 
TURNED COMMA
> "^[$-1\244\333^[-A"

> That is encoded in mule-unicode-0100-24ff, essentially unknown outside
> Emacs.

But actually I think emacs should be using using coding system
compound-text-with-extensions by default, not coding system
compound-text?  At least if you haven't customized
selection-coding-system.

That does give different results to your examples in some cases:

(encode-coding-string "ℜ" 'compound-text-with-extensions)
"%G\342\204\234%@"
(encode-coding-string "ʻ" 'compound-text-with-extensions)
"%G\312\273%@"