 01 constant-name-1 CONSTANT [ IS GLOBAL ]
                    ~~~~~~~~      ~~~~~~
   { AS { literal-1                           } }
   {    { arithmetic-expression-1             } }
   {    { { BYTE-LENGTH } OF { identifier-1 } } }
   {    { { ~~~~~~~~~~~ }    { usage-name   } } }
   {    { { LENGTH      }                     } }
   {        ~~~~~~                              }
   { FROM CDF-variable-name-1                   }
     ~~~~
