PDFFinder[Cyrillic text finding comply register]

Hi! Please help. I use this method for find text in PDF, but search works incorrect.
-(PDFFinder *)find:(NSString *)key :(bool)match_case :(bool)whole_word
{
PDF_FINDER hand = Page_findOpen( m_page, [key UTF8String], match_case, whole_word );
if( !hand ) return NULL;
return [[PDFFinder alloc] init:hand];
}
If key = "EnGLISH" the PDFFinder finds text = "english"
if key = "РусСКий" the PDFFinder NOT finds text = "русский"

What could be the problem?

Hi,

can you share the pdf use to test the search feature?

match_case should be true, if match "EnGLISH", and not match "english"

Try to find text = "ЗаДаЧа" and you can't find text = "задача". The problem is that search of Cyrillic text with different register not work

www.dropbox.com/s/3ex6qxpcue7rbih/ubk_1041070114f.pdf?dl=0

Guys, please help. match_case = true. With English language no problem, with russian language search not worked correctly.

Next week we will release a new version to fix match case with Russian char set.
We expect to release it on Wednesday.