font-encoding-charset-alist

font-encoding-charset-alist is a variable defined in `C source code'.
Its value is shown below.

Documentation:
Alist of charsets vs the charsets to determine the preferred font encoding.
Each element looks like (CHARSET . ENCODING-CHARSET),
where ENCODING-CHARSET is a charset registered in the variable
`font-encoding-alist' as ENCODING.

When a text has a property `charset' and the value is CHARSET, a font
whose encoding corresponds to ENCODING-CHARSET is preferred.

Value:

((latin-iso8859-1 . iso-8859-1)
 (latin-iso8859-2 . iso-8859-2)
 (latin-iso8859-3 . iso-8859-3)
 (latin-iso8859-4 . iso-8859-4)
 (latin-iso8859-9 . iso-8859-9)
 (latin-iso8859-10 . iso-8859-10)
 (latin-iso8859-13 . iso-8859-13)
 (latin-iso8859-14 . iso-8859-14)
 (latin-iso8859-15 . iso-8859-15)
 (latin-iso8859-16 . iso-8859-16)
 (cyrillic-iso8859-5 . iso-8859-5)
 (greek-iso8859-7 . iso-8859-7)
 (arabic-iso8859-6 . iso-8859-6)
 (thai-tis620 . tis620-2533)
 (latin-jisx0201 . jisx0201)
 (katakana-jisx0201 . jisx0201)
 (chinese-big5-1 . big5)
 (chinese-big5-2 . big5)
 (vietnamese-viscii-lower . viscii)
 (vietnamese-viscii-upper . viscii)
 (tibetan . unicode-bmp))