Hitachi TrueCopy for z/OS User Guide (T1711-96024, November 2011)

194 Hitachi TrueCopy z/OS for HP XP12000/XP10000 and SVS 200 storage systems
• An empty statement (see Table 52). The empty statement is a non-execution statement.
Script file requirements
The following table lists the requirements for the components of a script file.
Table 52 Syntax description
Statement Name Description
Blank statement Space or Tab with a return
Comment statement One line beginning with //
Empty statement Return only
Execution statement Work variable statement (non-list type work variable = constant)
Macro statement Macro name [parameter list]
See ”Operation macro commands” on page 195 and ”Internal macro commands” on
page 203 for macro information.
Table 53 Script components
Component Name Description
Macro name Either an internal macro or a functional macro.
Parameter list Parameter identification name (defined in each macro format) = non-list type expression.
Expression List, constant, and work variable.
List In a list description, a constant is enclosed in braces “{}”. A comma “,” is inserted between
constants. Example: {1, 2, 3, 4}, or {“ABC”, “qtw”}. Lists and work variables cannot be
described in a list.
Constant String or a numeric value.
String The string covers the following lists. Enclose a list with a double-quotation mark (“”). Letters
(uppercase and lowercase), numbers, symbols.
• Numeric list: List that consists of (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
• Hexadecimal number list: List that begins with 0x/0X of (A, B, C, D, E, F, a, b, c, d, e,
f)
Reserved variables Reserved variables can be referenced in a script only. Setting a value is not possible.
Table 54 Script file requirements
Item Requirement
Maximum length of one line of a script 320 bytes
Maximum number of items of one list type identification name 1,024
Maximum length of one item of a list type work variable string 16 bytes
Maximum length of one item of a non-list type string 150 bytes
Maximum number of items of macro trace storage 33,000
Maximum number of items of error trace 33,000
Maximum length of a script file 8 megabytes