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<TITLE>4.10 Formal Parameter Lists</TITLE>
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<P><FONT SIZE="5">4.10 Formal Parameter Lists</FONT><BR>
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<P>FunnelWeb allows macros to have up to nine macro
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parameters, named <SAMP>@1</SAMP>, <SAMP>@2</SAMP>,
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..., <SAMP>@9</SAMP>. If a macro does not have a formal
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parameter list, it is defined to have no parameters, and an
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actual parameter list must not appear at the point of call.
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If a macro has a formal parameter list, it is defined to
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have one or more parameters, and a corresponding actual
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parameter must be supplied for each formal parameter, at the
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<P>Because FunnelWeb parameters have predictable names,
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the only information that a formal parameter list need
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convey is <I>how many</I> parameters a macro has. For this
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reason a formal parameter list takes the form of the highest
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numbered formal parameter desired, enclosed in parentheses
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formal_parameter_list = "@(" formal_parameter "@)".
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formal_parameter = "@1" | "@2" | "@3" | "@4" | "@5" |
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"@6" | "@7" | "@8" | "@9"
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