Identifier

is the name given to a particular data structure within a Genstat program. The first character of an identifier must be a letter; any others can be either letters or digits. Only the first 32 characters are significant; subsequent characters are ignored. The directive SET allows you to specify whether or not the case of the letters (small or capital) is to be significant, e.g. whether LENGTH is the same as Length, or whether only the first eight characters should be significant (as in Releases before 4.2).