(cffi:defcstruct analysis
  (shape-engine :pointer)
  (lang-engine :pointer)
  (font (g:object font))
  (level :uint8)
  (gravity :uint8)
  (flags :uint8)
  (script :uint8)
  (language (g:boxed language))
  (extra-attrs :pointer))  

The pango:analysis structure stores information about the properties of a segment of text. The pango:item structure contains a field for a pango:analysis instance. After text has been itemised using the pango:itemize function, the pango:analysis instance is populated with values for each pango:item instance resulting from the itemisation process. This instance is then passed to the pango:shape function, which converts the text into glyphs. See the pango:shape documentation for a complete example.