porting program from uniscribe to pango, missing some information

[ikenchina <ikenchina 163 com>]

hello,
i am porting a program from windows to linux, and for complex script, i use ups on windows, but now i use pango on linux. but i found some functions do not exis in pango and existing in usp.

1. scriptIsComplex : now i wrote the code to implementate it : uchar->unicode()>=0x590; if match this _expression_, then it is a complex script. is it right? 2. scriptGetFontProperties , get SCRIPT_FONTPROPERTIES: for this case, i don't know how to get the information of SCRIPT_FONTPROPERTIES. eg: wgBlank, wgInvalid, wgKashida, iKashidaWidth.
3. scriptGetProperties , get SCRIPT_PROPERTIES : i don't know how to get the information of SCRIPT_PROPERTIES. eg: fComplex, fNeedsWordBreak

4. PangoAnalysis, GSList *extra_attrs, but document didn't tell me what attributes are?

4.

does anybody know? thank you very much!!!