Characters in XML documents

The specification allows at some places in XML documents (eg. element name, attribute content...) not all characters.

It is good to know the meaning of:

  • character sets (set of characters with respective codes/numbers), tj. attaching the ordinal value to character (eg. Unicode) a

  • character encoding (from a given set), eg. UTF-8, eg. the ordinal value is encoded into a sequence of bytes