17.6. Operator Reference

The binary operators for simple language predicates are shown in Table 17.2, “Binary Operators for the Simple Language”.

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Table 17.2. Binary Operators for the Simple Language
Operator	Description
`==`	Equals.
`>`	Greater than.
`>=`	Greater than or equals.
`<`	Less than.
`<=`	Less than or equals.
`!=`	Not equal to.
`contains`	Test if LHS string contains RHS string.
`not contains`	Test if LHS string does not contain RHS string.
`regex`	Test if LHS string matches RHS regular expression.
`not regex`	Test if LHS string does not match RHS regular expression.
`in`	Test if LHS string appears in the RHS comma-separated list.
`not in`	Test if LHS string does not appear in the RHS comma-separated list.
`is`	Test if LHS is an instance of RHS Java type (using Java `instanceof` operator).
`not is`	Test if LHS is not an instance of RHS Java type (using Java `instanceof` operator).
`range`	Test if LHS number lies in the RHS range (where range has the format, `'`min`...`max`'`).
`not range`	Test if LHS number does not lie in the RHS range (where range has the format, `'`min`...`max`'`).

The binary operators for simple language predicates are shown in Table 17.3, “Unary Operators for the Simple Language”.

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Table 17.3. Unary Operators for the Simple Language
Operator	Description
`++`	Increment a number by 1.
`--`	Decrement a number by 1.
`\`	Escape the following character. Note the following special cases: `\n` for new line, `\t` for tab, and `\r` for carriage return.

The conjunctions shown in Table 17.4, “Conjunctions for Simple Language Predicates” can be used to combine two or more simple language predicates.

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Table 17.4. Conjunctions for Simple Language Predicates
Operator	Description
`&&`	Combine two predicates with logical and.
`\|\|`	Combine two predicates with logical inclusive or.
`and`	Deprecated. Use `&&` instead.
`or`	Deprecated. Use `\|\|` instead.