This is Scintilla iOS port.
Same codebase used in XmlPad for iOS (http://xmlpad-mobile.com).
It's resolve UIScrollView problem and not use Qt.
This is fork of version 3.3.6. 32/64 bits supported.
A small piece of code use Omni Source Code http://www.omnigroup.com (OUILoupeOverlay and OUITextThumb) Framework file located in Scintilla-iOS/cocoa/ScintillaFramework.