Perl in a Nutshell, 2nd Edition

Text Indexes

In an Entry widget, several indexes are defined to identify positions in the entry text. These are used by the methods that retrieve and manipulate entry text.

n

An integer representing a character position, with 0 as the first character in the string.

insert

The character directly after the insert cursor.

sel.first

The first character in the selection block.

sel.last

The character after the last character in the selection block.

anchor

The anchored position.

end

The position just after the last character in the entry string.

@ x

The character containing the specified xcoordinate.