• About []<>{}..etc, I think you mean same case as Stabilizing characters like <>, {} and []




• Concerning cursor direction, There are two modes:

  
  
  
  
  
  1. Logical: Cursor moves as the text is stored in memory.
  
  
  2. Visual: Cursor moves as the text is displayed.
  
  
  
  
  

  Most user expect to see Visual cursor movement (Like in MS Windows). But not all application have it or use it by default.

  
  
  

  With Logical Cursor Movement, the cursor move as visual in LTR languages but it look like reversed in RTL languages. You should think: Left as Backward and Right as Forward.

  
  
  

  Logical cursor movement was counted by RTL languages users as bug, before implementing visual movement algorithm. Nowadays, GTK/Qt/KDE covers such missing option in applications as Unicode become universal standard. So most applications developed using these kits use visual cursor movement.

  
  
  
  
  

  • Gedit uses visual cursor.

  
  

  • As I know, LibreOffice (which I think you was aiming to) supports both with Logical as default. To change it:

    
    
    

    Tools → Options → Language Settings → Complex Text Layout → Cursor Control: Movement.

  
  

Recommended Readings:

• Cursor motion & bi-directional text