gtkTextIterForwardCursorPosition: gtkTextIterForwardCursorPosition
In RGtk2: R Bindings for Gtk 2.8.0 and Above

Description Usage Arguments Value Author(s)

Moves iter forward by a single cursor position. Cursor positions are (unsurprisingly) positions where the cursor can appear. Perhaps surprisingly, there may not be a cursor position between all characters. The most common example for European languages would be a carriage return/newline sequence. For some Unicode characters, the equivalent of say the letter "a" with an accent mark will be represented as two characters, first the letter then a "combining mark" that causes the accent to be rendered; so the cursor can't go between those two characters. See also the PangoLogAttr structure and pangoBreak function.