这包括通用文本替换系统，以及领域特有的程序和函数生成器。

This included generic textual-substitution systems, as well as domain-specific program and function generators.

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当需要使用sap函数生成器中显示的参数名称时，请选中use Field Name to generate attributes(图5)。

When you want to use the parameter name as it is shown in the SAP function builder, select use Field name to generate attributes (Figure 5).

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相反，编写一个函数，当调用它时，返回生成器。

Instead, one writes a function that, when called, returns a generator.

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