SYSIN control statements

For a full description of these control statements, see the IMS System Utilities. The BUILD and DELETE statements in this control data set are processed in exactly the same way as the IMS™ ACBGEN utility would process them. However, the error messages generated during the parsing of these control statements might differ slightly.

Syntax rules

The syntax rules can be summarized as follows:

• Control statement records must be 80 bytes in length.
• Positions 1 - 71 are used, position 72 is used for continuation, and positions 73 - 80 are ignored.
• A statement consists of a label, an operation field, one or more operand fields, and a comment.
• The label is optional. If specified, it must start in position 1.
• The operation field is required and must be preceded and followed by one or more blanks.
• An operand field is required and must follow the operation field. It must be preceded and followed by one or more blanks.
• A comment can be written following the last operand. It must be separated from the operand by one or more blanks.
• Commas, parenthesis, equal signs, and blanks can be used only as delimiting characters.
• If a control statement does not fit within an 80-byte record, it can be continued from one 80-byte record to the next. A continuation is marked by placing a non-blank character in position 72 of the record being continued. The next 80-byte record in the control statement data set must be blank in positions 1 - 15, and the continued text must start in position 16.