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FRIBIDI_CHARSET_UTF8 (integer)
Unicode
FRIBIDI_CHARSET_8859_6 (integer)
Arabic
FRIBIDI_CHARSET_8859_8 (integer)
Hebrew
FRIBIDI_CHARSET_CP1255 (integer)
Hebrew/Yiddish
FRIBIDI_CHARSET_CP1256 (integer)
Arabic
FRIBIDI_CHARSET_ISIRI_3342 (integer)
Persian
FRIBIDI_CHARSET_CAP_RTL (integer)
Used for test purposes, will treat CAPS as non-English letters
FRIBIDI_RTL (integer)
Right to left
FRIBIDI_LTR (integer)
Left to right
FRIBIDI_AUTO (integer)
Autodetect the base direction