Previous topic |
Next topic |
Contents |
Contact z/OS |
Library |
PDF
Mixed String Validation z/OS TSO/E REXX Reference SA32-0972-00 |
|
The validation of mixed strings depends on the instruction, operator, or function. If you use a mixed string with an instruction, operator, or function that does not allow mixed strings, this causes a syntax error. The following rules must be followed for mixed string validation:
EBCDIC only:
These examples show some possible misuses:
The end of a comment delimiter is not found within DBCS character sequences. For example, when the program contains /* < */, then the */ is not recognized as ending the comment because the scanning is looking for the > (SI) to go with the < (SO) and not looking for */. When a variable is created, modified, or referred to in a REXX program under OPTIONS EXMODE, it is validated whether it contains a correct mixed string or not. When a referred variable contains a mixed string that is not valid, it depends on the instruction, function, or operator whether it causes a syntax error. The ARG, PARSE, PULL, PUSH, QUEUE, SAY, TRACE, and UPPER instructions all require valid mixed strings with OPTIONS EXMODE in effect. |
Copyright IBM Corporation 1990, 2014
|