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Siebel Product Administration Guide > Siebel Configurator Rule Assembly Language > About Rule Assembly LanguageAll rules in the Rule Assembly Language (RAL) consist of expressions. Expressions consist of an operator and its operands. The number and type of operands depend on the operator. All expressions have the following form: For example, the following expression evaluates to the sum of A plus B. Most operators allow their operands to be expressions. In the expression above, both A and B can themselves be expressions. Spaces, tabs, and new-lines are ignored in expressions. In Rule Assembly Language, a constraint is a list of one or more top-level expressions. A top-level expression is the top-level operator and its associated operands in RAL statements. For example, in the following statement, A sub-expression is an expression that functions as an operand. Depending on the operator, a sub-expression returns a quantity or a logical true or false. The sub-expression itself is not a constraint. |
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