Xerox 6180N Using LCDS Print Description Language - Page 195

Using logical processing Options Table 3-8. CRITERIA CHANGE parameter options and definitions Option Definition offset The offset in bytes (relative to zero) from the start of the user portion of the record to the control field within the record. length The length in bytes of the control field. Its range is 1 to 255. NE Indicates "not equal to." LAST Indicates that the control field of the current record is being compared to the control field of the previous (last encountered) record. If a control field of the current record is less than the specified length, the comparison is not done and the test fails. Default No default CRITERIA CHANGE parameter: points to note • In online jobs, the host truncates trailing blanks. You may add blank character spaces to any control fields that are shorter than the specified length, so the system can make a comparison. • The data field contents are not interpreted as a number, but as individual bytes of data. Therefore, comparison of the numeric values of two data fields is not relevant. (For example, "2.00" does not equal "2.000.") Use the VALUE parameter to perform this kind of comparison. • When Change Mode CRITERIA commands are evaluated, a string from the current line is compared with a string saved from the corresponding part of a previous line. Refer to "String comparisons" earlier in this chapter for information on use of strings in logical processing commands. - If the comparison is not equal, the string from the current line becomes the saved comparison string for subsequent lines and the criteria is considered true. - If two records are overprinted on the same line but with different data in the field defined by the CRITERIA command, the string from the last overprint record becomes the saved comparison string and the CHANGE CRITERIA is satisfied. Using LCDS Print Description Language 3-15