extra attributes for this segment.
boolean flags for this segment (Since: 1.16).
the font for this segment.
the glyph orientation for this segment (A PangoGravity).
unused
the detected language for this segment.
the bidirectional level for this segment.
the detected script for this segment (A PangoScript) (Since: 1.18).
unused
The PangoAnalysis structure stores information about the properties of a segment of text.