Syntax

Value Type

Syntax

Description

Regular Expression

/regularExpression/

Pattern-matching string. Use the following syntax for pattern matching of variable values:

variableName = /regularExpression/

Example

Explanation

sku = /^WM[0-9]+/

Evaluates to true if the sku variable has a value that starts with “WM” and is followed by one or more digits (WM001, WM95157)

Variable

variableName–OR–%variableName%

Variable name. For information about how to use this syntax to address children of other variables or elements of array variables, see Addressing Variables.

Example

Explanation

price

Value of the price variable

%address/postalCode%

Value of the postalCode variable in the address document

%poItems[0]%

Value of the first element in the poItems list.

String

"string"–OR–'string'

Literal string. Use this value type to compare the value of a variable to a string.

Example

Explanation

“Favorite Customer”

Value is the literal string “Favorite Customer”

‘Favorite Customer’

Value is the literal string “Favorite Customer”

Note:

Strings not enclosed in quotes (' or ") are interpreted as variable names.

Number

number

Number. The following examples indicate the accepted number formats:

Example

Explanation

-10, 5, 100

Integers

5.0, 6.02

Floating point number (java.lang.Double)

6.345e+4

Scientific notation

Null

$null

Variable is null or missing. Typically compared with a variable name to determine if the variable is null or missing from the input data.

Example

Explanation

%quantity% = $null

Evaluates to true if the quantity variable is missing from the input data or is null