Appends the character to the text in the input field. This works as a filter:
only items containing this text will be displayed.
.TP
-.B Left/Right
+.B Left/Right (Mod1-h/Mod1-l)
Select the previous/next item.
.TP
-.B PageUp/PageDown
+.B PageUp/PageDown (Mod1-k/Mod1-j)
Select the first item of the previous/next 'page' of items.
.TP
-.B Home/End
+.B Home/End (Mod1-g/Mod1-G)
Select the first/last item.
.TP
-.B Tab
+.B Tab (Control-i)
Copy the selected item to the input field.
.TP
-.B Return
+.B Return (Control-j)
Confirm selection and quit (print the selected item to standard output). Returns
.B 0
on termination.
.TP
-.B Shift-Return
+.B Shift-Return (Control-Shift-j)
Confirm selection and quit (print the text in the input field to standard output).
Returns
.B 0
on termination.
.TP
-.B Escape
+.B Escape (Control-bracketleft)
Quit without selecting an item. Returns
.B 1
on termination.