IBM0059S

Explanation
 This condition was raised by the GRAPHIC built-in
function. One of the following rules for mixed constants was broken:
 SBCS portions of the constant cannot contain a shift-in.
Neither byte of a DBCS character can contain a shift code.

 Note: In mixed character strings, a shift-in following
a DBCS character or following a shift-out causes a transition to single-byte
mode.  It is impossible for the first byte of a DBCS character in
a mixed character string to contain a shift-in.

System action
 The ERROR condition is raised.

Programmer response
 Ensure mixed character strings contain
balanced, unnested shift-out/shift-in pairs.  The MPSTR built-in function
can be used to check shift-out/shift-in pairs. ONSOURCE and ONCHAR
pseudovariables cannot be used to assign a new value to the string.
ERROR is raised if retry is attempted.

Symbolic Feedback Code
 IBM01R