Possible values for a FriBidiCharType are as follows:
FRIBIDI_TYPE_LTR
Left-To-Right letter.
FRIBIDI_TYPE_RTL
Right-To-Left letter.
FRIBIDI_TYPE_AL
Arabic Letter.
FRIBIDI_TYPE_EN
European Numeral.
FRIBIDI_TYPE_AN
Arabic Numeral.
FRIBIDI_TYPE_ES
European number Separator.
FRIBIDI_TYPE_ET
European number Terminator.
FRIBIDI_TYPE_CS
Common Separator.
FRIBIDI_TYPE_NSM
Non Spacing Mark.
FRIBIDI_TYPE_BN
Boundary Neutral.
FRIBIDI_TYPE_BS
Block Separator.
FRIBIDI_TYPE_SS
Segment Separator.
FRIBIDI_TYPE_WS
WhiteSpace.
FRIBIDI_TYPE_ON
Other Neutral.
FRIBIDI_TYPE_LRE
Left-to-Right Embedding.
FRIBIDI_TYPE_RLE
Right-to-Left Embedding.
FRIBIDI_TYPE_LRO
Left-to-Right Override.
FRIBIDI_TYPE_RLO
Right-to-Left Override.
FRIBIDI_TYPE_PDF
Pop Directional Flag.
DESCRIPTION
This function finds the bidi types of an string of characters. See
fribidi_get_bidi_type() for more information about the bidi types returned
by this function.