Suppose T is the <char> node:

    <char>
     |
    'a'


In the code generator, we wish to generate code for this occurrence of
the literal character 'a'.

String S; char c; int v;
s = NodeName(Chld(T,1));        // extract node name of 'a' node
c = Character(S,2);             // extract second character, the a, with ASCII value 97.
v = MakeStringOf(c);            // make a String out of the value 97
CodeGen1(LITOP, v, CurrLabel);  // generate the instruction LIT 97