characters? (ODF all versions)

Dear all,

18.291

----b
The form:max-length attribute specifies the maximum number of characters
that a user can enter in an input control.
----e

What is a "character"?

For some languages, certain single characters are (or can be)
represented by sequences of more than one Unicode code point. Is an e +
a combining e acute accent accounted a single character?

- Alex.