Well, the syntax highlighter is based on the open source text editor Fraise (http://www.fraiseapp.com/) which is in turn based on Smultron.

The syntax highlighter uses simple plist files that contain information about keywords, strings, comments, keywords and so on.

If you find a syntax definition compatible with Fraise or Smultron it's really easy for me to support it in an update.

But it's easy to get the regular expressions in the syntax definition wrong so that it either hangs because the regular expression is too complex and takes too long to parse or it's just wrong and makes the app crash...

For the moment, I think it's better if I manually integrate new syntax files.

This is now implemented. Will be available in 1.1.

The user now has the option to show or hide the sidebar in landscape and even in portrait orientation. This way, everone can decide if he wants to see the sidebar or not.

Thanks :)

The cursor position (selected range) is now saved - even between app launches.

Will be available in the next release.

This is now fixed for the next version. Username and passwort are now saved securely in the keychain.

Hrmm, that's odd, in my tests I copied much bigger text without problems (a few thousand lines). Which iOS version is this?

But, I already fixed a crash that would happen when you are at the very end of the file and choose "Select" in the context menu. This will be fixed in the next update.

How large was the text you tried to copy? Can you give me an estimate on the number of characters or lines?

I assume you ran into a memory limit with the undo manager. Currently I don't check the text size when doing copy/paste.

Should I completely remove the sidebar and only use a popover like it is implemented in portrait orientation or should it be an option in settings?

The sidebar is good if you want to quickly switch between files (for example when viewing a larger project and not editing it).