vim - editing

In order to enter Unicode character abcd, type ctrl-v and u: ^vuabcd.

A hex character is entered by preceding it by ctrl-v and x. The range is limited to 00 - ff, however.

In order to determine the ascii value of a character under the cursor, ga or g8 might be used. (Apparently, this is also possible with the ex command :ascii. Compare ga and g8 with g ctrl-g which prints the cursor's column, line, word, character and byte).

Virtual editing allows to move the cursor to positions after the last character in a line.

Vim sessions

Vim digraphs